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HTTP Response Header
HTTP Headers
Mar 21, 2021
Alan Jo
Alan Jo
Sep 13, 2023
### HTTP Response Headers |Title| |:-:| |[HTTP X-Frame-Options Header](https://texonom.com/http-x-frame-options-header-d8affb7e4900415e8ddf374cac8ec7b0)| |[HTTP X-XSS-Protection Header](https://texonom.com/http-x-xss-protection-header-acea655f80ab4ca4a5297be19f4a9a45)| |[HTTP x-cache-expired-at Header](https://texonom.com/http-x-cache-expired-at-header-1993905431b0425dbeb99ca477286334)| |[HTTP x-cache-status Header](https://texonom.com/http-x-cache-status-header-697a8cd8fe094615a3608ee313c692e4)| |[HTTP Set-Cookie Header](https://texonom.com/http-set-cookie-header-ac388b956c3e4a19bede0b67326e8a04)| |[HTTP Expires Header](https://texonom.com/http-expires-header-5115ec7a858d4a80aff3cf27082ea3b7)| |[HTTP Age Header](https://texonom.com/http-age-header-705808d7eb364f5ebb5314401195fbfc)| |[HTTP ETag Header](https://texonom.com/http-etag-header-e27a505da3024ae0a267d761779dfb28)| |[HTTP Access-Control-Allow-Origin Header](https://texonom.com/http-access-control-allow-origin-header-56bdcb49668a4bf2abef39eeefc4e18d)| |[HTTP Referrer-Policy Header](https://texonom.com/http-referrer-policy-header-902e2bb7197140ac9c9cc1d03e3d48cd)| |[HTTP Feature-Policy Header](https://texonom.com/http-feature-policy-header-20c423a8ce264f15ada8dbe42c5ae5e1)| |[HTTP Strict-Transport-Security Header](https://texonom.com/http-strict-transport-security-header-50508d9ad2eb419f97951b0b6fc5c7d0)| |[HTTP Vary Header](https://texonom.com/http-vary-header-09a8d825b3c94aa29d9dcb93c3a33bd1)| |[Content-Security-Policy](https://texonom.com/content-security-policy-ba88569e98e847b4b26b411824d81e22)|
6885667e81c74cebaa57b553c63ec04d
HTTP Content-Encoding Header
HTTP Entity Headers
May 11, 2021
Alan Jo
Alan Jo
Sep 13, 2023
์‘๋‹ต์„ ์••์ถ•ํ•  ๋•Œ ์‚ฌ์šฉ๋œ ์•Œ๊ณ ๋ฆฌ์ฆ˜ gzip๊ณผ Brotli๊ฐ€ ํ”ํžˆ ์“ฐ์ด๋Š” ํŽธ - gzip - compress - defalte - br - zstd > [Content-Encoding - HTTP | MDN](https://developer.mozilla.org/ko/docs/Web/HTTP/Headers/Content-Encoding)
401230cf5b2e49699412cc1095127ebe
HTTP Content-Length Header
HTTP Entity Headers
May 11, 2021
Alan Jo
Alan Jo
Sep 13, 2023
๋ฐ”์ดํŠธ ๋‹จ์œ„๋ฅผ ๊ฐ€์ง€๋Š” ๊ฐœ์ฒด ๋ณธ๋ฌธ์˜ ํฌ๊ธฐ ์ด ํ—ค๋”๊ฐ€ ์กด์žฌํ•˜๋Š” ์ด์œ ๋Š” HTTP/1.1๋ถ€ํ„ฐ ํ•œ ์—ฐ๊ฒฐ์„ ์žฌ์‚ฌ์šฉํ•˜๊ธฐ ๋•Œ๋ฌธ ์‘๋‹ต์ด ๋๋‚œ ๊ฑด์ง€ ์•„๋‹ˆ๋ฉด ์•„์ง ๋ณด๋‚ผ ๋ฐ์ดํ„ฐ๊ฐ€ ๋‚จ์•˜๋Š”๋ฐ ์•ˆ ์˜จ๊ฑด์ง€๋ฅผ ์ •ํ™•ํžˆ ํŒ๋‹จํ•˜๊ธฐ ์–ด๋ ค์šฐ๋‹ˆ Content-Length๋ฅผ ํ†ตํ•ด ๋ฐ์ดํ„ฐ์˜ ๊ธธ์ด๋ฅผ ํ™•์ธํ•˜๊ณ , ๋ชจ๋“  ๋ฐ์ดํ„ฐ๊ฐ€ ๋„์ฐฉํ–ˆ์œผ๋ฉด ์—ฐ๊ฒฐ์„ ์žฌ์‚ฌ์šฉํ•  ์ค€๋น„๊ฐ€ ๋˜์—ˆ๋‹ค๊ณ  ํŒ๋‹จ > [Content-Length - HTTP | MDN](https://developer.mozilla.org/ko/docs/Web/HTTP/Headers/Content-Length) > [๋ธŒ๋ผ์šฐ์ €์— google.com์„ ์น˜๋ฉด ๋ฌด์Šจ ์ผ์ด ์ผ์–ด๋‚ ๊นŒ? (์•„๋‹ˆ, ์ง„์งœ๋กœ) - ๋„คํŠธ์›ŒํฌํŽธ](https://velog.io/@rtyu1120/%EB%B8%8C%EB%9D%BC%EC%9A%B0%EC%A0%80%EC%97%90-google.com%EC%9D%84-%EC%B9%98%EB%A9%B4-%EB%AC%B4%EC%8A%A8-%EC%9D%BC%EC%9D%B4-%EC%9D%BC%EC%96%B4%EB%82%A0%EA%B9%8C-%EC%95%84%EB%8B%88-%EC%A7%84%EC%A7%9C%EB%A1%9C-%EB%84%A4%ED%8A%B8%EC%9B%8C%ED%81%AC%ED%8E%B8)
f39a2f674f354db5897534cc47a71e02
HTTP Content-Type Header
HTTP Entity Headers
Mar 22, 2021
Alan Jo
Alan Jo
Sep 13, 2023
MIME ํ˜•์‹
3faa9d13921f4acabad12a783adf0778
HTTP X-Content-Type-Options Header
HTTP Entity Headers
Mar 22, 2021
Alan Jo
Alan Jo
Sep 13, 2023
### used to protect against MIME sniffing vulnerabilities nosniff
b36b7ad6add44a74b261072191ba15e4
Access-Control-Request-Private-Network
HTTP General Headers
Mar 10, 2022
Alan Jo
Alan Jo
Sep 13, 2023
[CSRF](https://texonom.com/csrf-367d8a0912f44c3abdac89060eef0a01) [Preflight](https://texonom.com/preflight-60a799576be847dbb0bb7356847d9c0c)
PNA์— ๋Œ€ํ•˜์—ฌ preflight์ ์šฉ preflight์—๋Š” ์ด ํ—ค๋” true ์ ์šฉ๋˜์–ด์•ผ ํ•˜๊ณ  ์‘๋‹ต์—๋„ ์žˆ์–ด์•ผ ํ•œ๋‹ค ์‚ฌ์„ค๋ง์— ํ•˜์œ„ ๋ฆฌ์†Œ์Šค์— ๋Œ€ํ•œ ์š”์ฒญ์„ ๋ณด๋‚ด๊ธฐ ์ „์— ์‚ฌ์ „ ์š”์ฒญ์„ ์ „์†ก ์‚ฌ์„ค ๋„คํŠธ์›Œํฌ ๋ฆฌ์†Œ์Šค ์š”์ฒญ์„ ๋ณด๋‚ด๊ธฐ ์ „ preflight ์š”์ฒญ์„ ์ „์†ก Chrome 101์€ preflight ์š”์ฒญ์ด ๋ฐ˜๋“œ์‹œ ์„ฑ๊ณตํ•ด์•ผ ํ•˜๋ฉฐ, ์‹คํŒจํ•  ๊ฒฝ์šฐ ์‚ฌ์„ค ๋„คํŠธ์›Œํฌ ์š”์ฒญ์ด ์‹คํŒจ cors ์ƒ๊ด€์—†์ด ๋ชจ๋‘ > [Private Network Access: introducing preflights - Chrome Developers](https://developer.chrome.com/blog/private-network-access-preflight/)
596ddd505e984ab4af9aced4aa5d0f52
HTTP Cache-Control
HTTP General Headers
Jun 3, 2021
Alan Jo
Alan Jo
Sep 13, 2023
[HTTP Conditional Request](https://texonom.com/http-conditional-request-7b1137923b8d436ca7922edc99679234) [HTTP ETag Header](https://texonom.com/http-etag-header-e27a505da3024ae0a267d761779dfb28)[HTTP Cache-Control Response](https://texonom.com/http-cache-control-response-9954593bf2c94b6aaa8f7d6ec81fca82)
CDN Invalidation์„ ํฌํ•จํ•œ ์„œ๋ฒ„์˜ ์–ด๋–ค ์ž‘์—…์ด ์žˆ์–ด๋„ ๋ธŒ๋ผ์šฐ์ €์˜ ์œ ํšจํ•œ ์บ์‹œ๋ฅผ ์ง€์šฐ๊ธฐ ์–ด๋ ต๋‹ค Cache-Control max-age ๊ฐ’ ๋Œ€์‹  Expires ํ—ค๋”๋กœ ์บ์‹œ ๋งŒ๋ฃŒ ์‹œ๊ฐ„์„ ์ •ํ™•ํžˆ ์ง€์ •ํ•  ์ˆ˜๋„ ์žˆ์Œ ์บ์‹œ์˜ ์œ ํšจ ๊ธฐ๊ฐ„์ด ์ง€๋‚˜๋ฉด ๋ธŒ๋ผ์šฐ์ €๋Š” ์„œ๋ฒ„์— ์กฐ๊ฑด๋ถ€ ์š”์ฒญ(Conditional request)์„ ํ†ตํ•ด ์บ์‹œ๊ฐ€ ์œ ํšจํ•œ์ง€ ์žฌ๊ฒ€์ฆ(Revalidation) - ์บ์‹œ๊ฐ€ ์œ ํšจํ•˜๋‹ค๋ฉด, ์„œ๋ฒ„๋Š” [304 Not Modified] - ์บ์‹œ๊ฐ€ ์œ ํšจํ•˜์ง€ ์•Š์œผ๋ฉด, ์„œ๋ฒ„๋Š” [200 OK] ๋˜๋Š” ์ ํ•ฉํ•œ ์ƒํƒœ ์ฝ”๋“œ๋ฅผ ๋ณธ๋ฌธ๊ณผ ํ•จ๊ป˜ ์žฌ๊ฒ€์ฆ์€ ์•ˆ์‹œํ‚ค๋ ค๋ฉด max-age=0 ๋ง๊ณ (์ผ๋ถ€ ๋ชจ๋ฐ”์ผ ๋ธŒ๋ผ์šฐ์ €์˜ ๊ฒฝ์šฐ ์›น ๋ธŒ๋ผ์šฐ์ €๋ฅผ ๊ป๋‹ค ์ผœ๊ธฐ ์ „๊นŒ์ง€ ๋ฆฌ์†Œ์Šค๊ฐ€ ๋งŒ๋ฃŒ๋˜์ง€ ์•Š๋„๋ก ํ•˜๋Š” ๊ฒฝ์šฐ๋„) no-store CDN๊ณผ ๊ฐ™์€ ์ค‘๊ฐ„ ์„œ๋ฒ„๊ฐ€ ํŠน์ • ๋ฆฌ์†Œ์Šค๋ฅผ ์บ์‹œํ•  ์ˆ˜ ์žˆ๋Š”์ง€ ์—ฌ๋ถ€๋ฅผ ์ง€์ •ํ•˜๊ธฐ ์œ„ํ•ด Cache-Control ํ—ค๋” ๊ฐ’์œผ๋กœ public ๋˜๋Š” private ### HTTP Cache-Control Directives |Title| |:-:| |[HTTP Cache-Control Request](https://texonom.com/http-cache-control-request-67d6dc16b03b46378404361b5bbce23a)| |[HTTP Cache-Control Response](https://texonom.com/http-cache-control-response-9954593bf2c94b6aaa8f7d6ec81fca82)| |[Cache-Control Extension ](https://texonom.com/cache-control-extension-2aa7d6cd67484a84951f9ac6cce67a09)| > [์›น ์„œ๋น„์Šค ์บ์‹œ ๋˜‘๋˜‘ํ•˜๊ฒŒ ๋‹ค๋ฃจ๊ธฐ](https://toss.tech/article/smart-web-service-cache) > [Cache-Control - HTTP | MDN](https://developer.mozilla.org/ko/docs/Web/HTTP/Headers/Cache-Control) > [Cache headers in Express js app](https://regbrain.com/article/cache-headers-express-js) [https://www.notion.so/seongland/HTTP-Cache-Control-Response-9954593bf2c94b6aaa8f7d6ec81fca82](https://www.notion.so/seongland/HTTP-Cache-Control-Response-9954593bf2c94b6aaa8f7d6ec81fca82)
3e82255f69d443588f4e3fa522ee2366
HTTP Connection Header
HTTP General Headers
May 11, 2021
Alan Jo
Alan Jo
Sep 13, 2023
```typeConnection: keep-aliveConnection: close``` > [Connection - HTTP | MDN](https://developer.mozilla.org/ko/docs/Web/HTTP/Headers/Connection)
4966feb63d814be69f6d6c53667bc102
Cache-Control Extension
HTTP Cache-Control Directives
Jun 3, 2021
Alan Jo
Alan Jo
Jun 8, 2021
[Cache-Control stale-while-revalidate](https://texonom.com/cache-control-stale-while-revalidate-daee41434c044b1b92cbaf6676474f47) ```typeCache-Control: immutableCache-Control: stale-while-revalidate=<seconds>Cache-Control: stale-if-error=<seconds>```
2aa7d6cd67484a84951f9ac6cce67a09
HTTP Cache-Control Request
HTTP Cache-Control Directives
Jun 8, 2021
Alan Jo
Alan Jo
Jun 8, 2021
### Directives ```typeCache-Control: max-age=<seconds>Cache-Control: max-stale[=<seconds>]Cache-Control: min-fresh=<seconds>Cache-control: no-cacheCache-control: no-storeCache-control: no-transformCache-control: only-if-cached``` ### no-cache no-cache ๊ฐ’์€ ๋Œ€๋ถ€๋ถ„์˜ ๋ธŒ๋ผ์šฐ์ €์—์„œ max-age=0 ๊ณผ ๋™์ผํ•œ ๋œป ์ฆ‰, ์บ์‹œ๋Š” ์ €์žฅํ•˜์ง€๋งŒ ์‚ฌ์šฉํ•˜๋ ค๊ณ  ํ•  ๋•Œ๋งˆ๋‹ค ์„œ๋ฒ„์— ์žฌ๊ฒ€์ฆ ์š”์ฒญ์„ ๋ณด๋‚ด์•ผ ### no-store ์บ์‹œ๋ฅผ ์ ˆ๋Œ€๋กœ ํ•ด์„œ๋Š” ์•ˆ ๋˜๋Š” ๋ฆฌ์†Œ์Šค์ผ ๋•Œ ์‚ฌ์šฉ ์บ์‹œ๋ฅผ ๋งŒ๋“ค์–ด์„œ ์ €์žฅ์กฐ์ฐจ ํ•˜์ง€ ๋ง๋ผ๋Š” ๊ฐ€์žฅ ๊ฐ•๋ ฅํ•œ Cache-Control > [์›น ์„œ๋น„์Šค ์บ์‹œ ๋˜‘๋˜‘ํ•˜๊ฒŒ ๋‹ค๋ฃจ๊ธฐ](https://toss.tech/article/smart-web-service-cache)
67d6dc16b03b46378404361b5bbce23a
HTTP Cache-Control Response
HTTP Cache-Control Directives
Jun 8, 2021
Alan Jo
Alan Jo
Mar 13, 2023
[HTTP ETag Header](https://texonom.com/http-etag-header-e27a505da3024ae0a267d761779dfb28)
## HTTP ์‘๋‹ต์— ํฌํ•จ๋œย **Cache-Control ํ—ค๋”**์— ๋”ฐ๋ผ ๋ฐ›์€ ๋ฆฌ์†Œ์Šค์˜ ์ƒ๋ช… ์ฃผ๊ธฐ๊ฐ€ ๊ฒฐ์ • CDN๊ณผ ๊ฐ™์€ ์ค‘๊ฐ„ ์„œ๋ฒ„๋ฅผ ์‚ฌ์šฉํ•  ๋•Œ, ์บ์‹œ๋Š” ์—ฌ๋Ÿฌ ๊ณณ์— ์ƒ๊ธธ ์ˆ˜๋„ ๊ทธ๋Ÿฌ๋‹ˆ ํ•œ๋ฒˆ ์„ค์ • ์กฐ์‹ฌํ•ด์•ผ ### Directives [CDN Invalidation](https://texonom.com/cdn-invalidation-bc13a272b59a4307a9f65090a27f1948) [HTTP Conditional Request](https://texonom.com/http-conditional-request-02c2811fbe764cd7986db173fd970e36) [Cache-Control max-age](https://texonom.com/cache-control-max-age-9911e838b95a4629921bf83acc634a39) [Cache-Control s-maxage](https://texonom.com/cache-control-s-maxage-316b80ab8f1d48d5b45dfe61c537f740) [Cache-Control no-cache](https://texonom.com/cache-control-no-cache-770e500ec21443ca96a03a7187a0bd4b) [Cache-Control no-store](https://texonom.com/cache-control-no-store-1c2dbd4f9b0a4114802d050f95d76807) [Cache-control public private](https://texonom.com/cache-control-public-private-e1a44c42910e4016b1bb4997691e58cc) ```typeCache-control: must-revalidateCache-control: no-transformCache-control: proxy-revalidate``` > [์›น ์„œ๋น„์Šค ์บ์‹œ ๋˜‘๋˜‘ํ•˜๊ฒŒ ๋‹ค๋ฃจ๊ธฐ](https://toss.tech/article/smart-web-service-cache)
9954593bf2c94b6aaa8f7d6ec81fca82
Cache-Control stale-while-revalidate
Cache-Control Extension
null
null
null
null
null
[RFC 5861](https://texonom.com/rfc-5861-9a3ee7f29cc8415685b30b87e0fdfcd7) ```typeCache-Control: stale-while-revalidate=59``` ![](https://www.notion.so/image/https%3A%2F%2Fweb-dev.imgix.net%2Fimage%2Fadmin%2FC8lg2FSEqhTKR6WmYky3.svg?table=block&id=999809c4-138a-442a-825c-0ec4f20f1c3c&cache=v2) > [Keeping things fresh with stale-while-revalidate](https://web.dev/stale-while-revalidate/)
daee41434c044b1b92cbaf6676474f47
RFC 5861
Cache-Control stale-while-revalidate
null
null
null
null
null
covering the initial stale-while-revalidate specification > [rfc5861](https://datatracker.ietf.org/doc/html/rfc5861)
9a3ee7f29cc8415685b30b87e0fdfcd7
Cache-Control max-age
HTTP Cache-Control Response
null
null
null
null
null
CDN Invalidation์„ ํฌํ•จํ•œ ์„œ๋ฒ„์˜ ์–ด๋–ค ์ž‘์—…์ด ์žˆ์–ด๋„ ๋ธŒ๋ผ์šฐ์ €์˜ ์œ ํšจํ•œ ์บ์‹œ๋ฅผ ์ง€์šธ ์ˆ˜ ์—†๋‹ค ์‹ ์ค‘ํ•˜๊ฒŒ ์„ค์ •ํ•ด์•ผ ```typeCache-Control: max-age=<seconds>``` **max-age=0 ์ฃผ์˜๋ณด**ย ์ •์˜๋Œ€๋กœ๋ผ๋ฉด max-age=0 ๊ฐ’์ด Cache-Control ํ—ค๋”๋กœ ์„ค์ •๋˜์—ˆ์„ ๋•Œ, ๋งค๋ฒˆ ๋ฆฌ์†Œ์Šค๋ฅผ ์š”์ฒญํ•  ๋•Œ๋งˆ๋‹ค ์„œ๋ฒ„์— ์žฌ๊ฒ€์ฆ ์š”์ฒญ์„ ๋ณด๋‚ด์•ผ > Cache-Control max-age ๊ฐ’ ๋Œ€์‹  Expires ํ—ค๋”๋กœ ์บ์‹œ ๋งŒ๋ฃŒ ์‹œ๊ฐ„์„ ์ •ํ™•ํžˆ ์ง€์ •ํ•  ์ˆ˜๋„
9911e838b95a4629921bf83acc634a39
Cache-Control no-cache
HTTP Cache-Control Response
null
null
null
null
null
๋Œ€๋ถ€๋ถ„์˜ ๋ธŒ๋ผ์šฐ์ €์—์„œ max-age=0 ๊ณผ ๋™์ผํ•œ ๋œป ์บ์‹œ๋Š” ์ €์žฅํ•˜์ง€๋งŒ ์‚ฌ์šฉํ•˜๋ ค๊ณ  ํ•  ๋•Œ๋งˆ๋‹ค ์„œ๋ฒ„์— ์žฌ๊ฒ€์ฆ ์š”์ฒญ์„ ๋ณด๋‚ด์•ผ ```typeCache-control: no-cache```
770e500ec21443ca96a03a7187a0bd4b
Cache-Control no-store
HTTP Cache-Control Response
null
null
null
null
null
์บ์‹œ๋ฅผ ์ ˆ๋Œ€๋กœ ํ•ด์„œ๋Š” ์•ˆ ๋˜๋Š” ๋ฆฌ์†Œ์Šค์ผ ๋•Œ ์บ์‹œ๋ฅผ ๋งŒ๋“ค์–ด์„œ ์ €์žฅ์กฐ์ฐจ ํ•˜์ง€ ๋ง๋ผ๋Š” ```typeCache-control: no-store```
1c2dbd4f9b0a4114802d050f95d76807
Cache-control public private
HTTP Cache-Control Response
null
null
null
null
null
public์€ ๋ชจ๋“  ์‚ฌ๋žŒ๊ณผ ์ค‘๊ฐ„ ์„œ๋ฒ„๊ฐ€ ์บ์‹œ๋ฅผ ์ €์žฅํ•  ์ˆ˜ ์žˆ์Œ์„ ๋‚˜ํƒ€๋‚ด๊ณ ,ย private์€ ๊ฐ€์žฅ ๋์˜ ์‚ฌ์šฉ์ž ๋ธŒ๋ผ์šฐ์ €๋งŒ ์บ์‹œ๋ฅผ ์ €์žฅํ•  ์ˆ˜ ์žˆ์Œ > [์›น ์„œ๋น„์Šค ์บ์‹œ ๋˜‘๋˜‘ํ•˜๊ฒŒ ๋‹ค๋ฃจ๊ธฐ](https://toss.tech/article/smart-web-service-cache)
e1a44c42910e4016b1bb4997691e58cc
Cache-Control s-maxage
HTTP Cache-Control Response
null
null
null
null
null
์ค‘๊ฐ„ ์„œ๋ฒ„์—์„œ๋งŒ ์ ์šฉ๋˜๋Š” max-age ๊ฐ’์„ ์„ค์ • s-maxage=31536000, max-age=0 ๊ณผ ๊ฐ™์ด ์„ค์ •ํ•˜๋ฉด CDN์—์„œ๋Š” 1๋…„๋™์•ˆ ์บ์‹œ๋˜์ง€๋งŒ ๋ธŒ๋ผ์šฐ์ €์—์„œ๋Š” ๋งค๋ฒˆ ์žฌ๊ฒ€์ฆ ์š”์ฒญ์„ ๋ณด๋‚ด๋„๋ก ์„ค์ • ```typeCache-control: s-maxage=<seconds>``` CDN์—์„œ๋Š” 1๋…„๋™์•ˆ ์บ์‹œ๋˜์ง€๋งŒ ๋ธŒ๋ผ์šฐ์ €์—์„œ๋Š” ๋งค๋ฒˆ ์žฌ๊ฒ€์ฆ ์š”์ฒญ์„ ๋ณด๋‚ด๋„๋ก ```types-maxage=31536000, max-age=0, public```
316b80ab8f1d48d5b45dfe61c537f740
**CDN Invalidation**
HTTP Cache-Control Response
null
null
null
null
null
### CDN์— ์ €์žฅ๋˜์–ด ์žˆ๋Š” ์บ์‹œ๋ฅผ ์—†์• ๊ธฐ ์œ„ํ•ด์„œ ์ˆ˜ํ–‰ํ•˜๋Š” ๊ฒƒ ๋ธŒ๋ผ์šฐ์ € ์บ์‹œ์™€๋Š” ์ƒ๊ด€์—†์Œ CDN์ด ์—ฌ๋Ÿฌ ๊ฐœ ์žˆ๋Š” ๊ฒฝ์šฐ๋„ ๋ฐœ์ƒํ•˜๋Š”๋ฐ, ์ด ๊ฒฝ์šฐ ์ „์ฒด ์บ์‹œ๋ฅผ ๋‚ ๋ฆฌ๋ ค๋ฉด ์ค‘๊ฐ„ ์„œ๋ฒ„ ๊ฐ๊ฐ์— ๋Œ€ํ•ด์„œ ์บ์‹œ๋ฅผ ์‚ญ์ œํ•ด์•ผ > [์›น ์„œ๋น„์Šค ์บ์‹œ ๋˜‘๋˜‘ํ•˜๊ฒŒ ๋‹ค๋ฃจ๊ธฐ](https://toss.tech/article/smart-web-service-cache)
bc13a272b59a4307a9f65090a27f1948
HTTP Conditional Request
HTTP Cache-Control Response
null
null
null
null
null
## Cache Revalidation ์žฌ๊ฒ€์ฆ ๊ฒฐ๊ณผ ๋ธŒ๋ผ์šฐ์ €๊ฐ€ ๊ฐ€์ง€๊ณ  ์žˆ๋Š” ์บ์‹œ๊ฐ€ ์œ ํšจํ•˜๋‹ค๋ฉด, ์„œ๋ฒ„๋Š”ย **[304 Not Modified]**ย Status Code ์žฌ๊ฒ€์ฆ ์š”์ฒญ ํ—ค๋” 1. **If-None-Match**: ์บ์‹œ๋œ ๋ฆฌ์†Œ์Šค์˜ย `ETag`ย ๊ฐ’๊ณผ ํ˜„์žฌ ์„œ๋ฒ„ ๋ฆฌ์†Œ์Šค์˜ย `ETag`ย ๊ฐ’์ด ๊ฐ™์€์ง€ ํ™•์ธํ•ฉ๋‹ˆ๋‹ค. 2. **If-Modified-Since**: ์บ์‹œ๋œ ๋ฆฌ์†Œ์Šค์˜ย `Last-Modified`ย ๊ฐ’ ์ดํ›„์— ์„œ๋ฒ„ ๋ฆฌ์†Œ์Šค๊ฐ€ ์ˆ˜์ •๋˜์—ˆ๋Š”์ง€ ํ™•์ธํ•ฉ๋‹ˆ๋‹ค. [HTTP ETag Header](https://texonom.com/http-etag-header-e27a505da3024ae0a267d761779dfb28) > [์›น ์„œ๋น„์Šค ์บ์‹œ ๋˜‘๋˜‘ํ•˜๊ฒŒ ๋‹ค๋ฃจ๊ธฐ](https://toss.tech/article/smart-web-service-cache)
02c2811fbe764cd7986db173fd970e36
HTTP Accept Header
HTTP Request Headers
May 11, 2021
Alan Jo
Alan Jo
Sep 13, 2023
Accept ์š”์ฒญ HTTP ํ—ค๋”๋Š” MIME ํƒ€์ž…์œผ๋กœ ํ‘œํ˜„๋˜๋Š”, ํด๋ผ์ด์–ธํŠธ๊ฐ€ ์ดํ•ด ๊ฐ€๋Šฅํ•œ ์ปจํ…์ธ  ํƒ€์ž…์ด ๋ฌด์—‡์ธ์ง€๋ฅผ ์•Œ๋ ค์คŒ > [Accept - HTTP | MDN](https://developer.mozilla.org/ko/docs/Web/HTTP/Headers/Accept)
e84dfc625f4f4cdfb1107c9b3860105a
HTTP Accept-Language
HTTP Request Headers
Mar 13, 2023
Alan Jo
Alan Jo
Sep 13, 2023
ํŠนํ—ˆ ์กฐ์‹ฌ > [Accept-Language - HTTP | MDN](https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Accept-Language)
b7c01536b83c4642a15b7e5d12defe1a
HTTP Authorization Header
HTTP Request Headers
Mar 24, 2021
Alan Jo
Alan Jo
Sep 13, 2023
193b5de3c4c5422b9936f3e51469da60
HTTP Client Hints Header
HTTP Request Headers
May 11, 2021
Alan Jo
Alan Jo
Sep 13, 2023
๊ตฌ๊ธ€์—์„œ ๋ฐ€๊ณ  ์žˆ๋Š” ์ปจํ…์ธ  ํ˜‘์ƒ ํ—ค๋”์˜ ์ผ๋ถ€๋กœ ํ™œ์šฉ
a2ed91c778484181af91de207c876abf
HTTP Cookie Header
HTTP Request Headers
Aug 17, 2021
Alan Jo
Alan Jo
Sep 13, 2023
[HTTP Cookie](https://texonom.com/http-cookie-5a2a27c54b6a4ec5830512b25a2d8300) [HTTP Set-Cookie Header](https://texonom.com/http-set-cookie-header-ac388b956c3e4a19bede0b67326e8a04)
์ €์žฅ๋œ ์ฟ ํ‚ค๋Š” ๋‹ค์Œ์— ๋‹ค์‹œ ๊ทธ ๋ธŒ๋ผ์šฐ์ €์—์„œ ์„œ๋ฒ„๋กœ ์š”์ฒญ์„ ๋ณด๋‚ผ๋•Œ, Cookie๋ผ๋Š” ํ—ค๋”์— ๊ฐ™์ด ์ „์†ก > [Untitled](https://seob.dev/posts/%EB%B8%8C%EB%9D%BC%EC%9A%B0%EC%A0%80-%EC%BF%A0%ED%82%A4%EC%99%80-SameSite-%EC%86%8D%EC%84%B1/)
c93a0869e98e442dbc7e3dffa9ea2987
HTTP Host Header
HTTP Request Headers
Sep 5, 2021
Alan Jo
Alan Jo
Sep 13, 2023
151e3887e19b4c9e8fc2f5f87886433c
HTTP If-Modified-Since
null
null
null
null
null
null
1f2eb357361145b68f1efc5fb8484c6c
HTTP If-None-Match
HTTP Request Headers
Jun 8, 2021
Alan Jo
Alan Jo
Sep 13, 2023
4feb114394fb4483bdbd44dda67a6d25
HTTP Origin Header
HTTP Request Headers
Mar 24, 2021
Alan Jo
Alan Jo
Sep 13, 2023
4a003b635a8d4eeaaffb86a491bd84ed
HTTP Referer Header
HTTP Request Headers
Aug 17, 2021
Alan Jo
Alan Jo
Sep 13, 2023
์š”์ฒญ์„ ๋ณด๋‚ด๋Š” ํŽ˜์ด์ง€ ๋„๋ฉ”์ธ
2e4dc47f6eda4a66bc1073d860792cd5
HTTP Upgrade-Insecure-Requests Header
HTTP Request Headers
May 11, 2021
Alan Jo
Alan Jo
Sep 13, 2023
ํด๋ผ์ด์–ธํŠธ์—์„œ TLS ์—ฐ๊ฒฐ์„ ํ†ตํ•œ ์•”ํ˜ธํ™”๋œ ์—ฐ๊ฒฐ์„ ์ง€์›ํ•œ๋‹ค๋Š” ์˜๋ฏธ CSP ๊ทœ์น™ ์ค‘ ํ•˜๋‚˜ > [Upgrade-Insecure-Requests - HTTP | MDN](https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Upgrade-Insecure-Requests)
59ef6bdf60fd461592fc3edb2a409342
HTTP User-Agent Header
HTTP Request Headers
May 11, 2021
Alan Jo
Alan Jo
Sep 13, 2023
์ปจํ…์ธ  ํ˜‘์ƒ ํ—ค๋”์˜ ์ผ๋ถ€ [User Agent String Reduction](https://texonom.com/user-agent-string-reduction-4b8c8e579cf348c5901716f036c95945) > [๋ธŒ๋ผ์šฐ์ €์˜ ์‚ฌ์šฉ์ž ์—์ด์ „ํŠธ๋Š” ์™œ ์ด๋ ‡๊ฒŒ ๋ณต์žกํ•˜๊ฒŒ ์ƒ๊ฒผ์„๊นŒ? - ์žฌ๊ทธ์ง€๊ทธ์˜ ๊ฐœ๋ฐœ ๋ธ”๋กœ๊ทธ](https://wormwlrm.github.io/2021/10/11/Why-User-Agent-string-is-so-complex.html)
586f2d9592f9490886946a3102f03671
****User Agent String Reduction****
HTTP User-Agent Header
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null
null
null
null
UA(User-Agent) ๋ฌธ์ž์—ด์ด ๊ฐœ์ธ์ •๋ณด ์ถ”์ ์œผ๋กœ ํ™œ์šฉ๋˜๋Š” ๊ฒฝ์šฐ ์žˆ์–ด ๋ณ€๊ฒฝ์˜ˆ์ • > [User-Agent Reduction](https://www.chromium.org/updates/ua-reduction/) > [Update on User-Agent Reduction plans](https://groups.google.com/a/chromium.org/g/blink-dev/c/e3pZJu96g6c?pli=1) > [The Privacy Sandbox](https://www.chromium.org/Home/chromium-privacy/privacy-sandbox/) > [Intent to Deprecate and Freeze: The User-Agent string](https://groups.google.com/a/chromium.org/g/blink-dev/c/-2JIRNMWJ7s/m/yHe4tQNLCgAJ)
4b8c8e579cf348c5901716f036c95945
Content-Security-Policy
HTTP Response Headers
Oct 12, 2021
Alan Jo
Alan Jo
Sep 13, 2023
```typeContent-Security-Policy: default-src 'self' http://example.com; connect-src 'none';Content-Security-Policy: connect-src http://example.com/; script-src http://example.com/``` > [Content-Security-Policy - HTTP | MDN](https://developer.mozilla.org/ko/docs/Web/HTTP/Headers/Content-Security-Policy)
ba88569e98e847b4b26b411824d81e22
HTTP Access-Control-Allow-Origin Header
HTTP Response Headers
Mar 24, 2021
Alan Jo
Alan Jo
Sep 13, 2023
56bdcb49668a4bf2abef39eeefc4e18d
HTTP Age Header
HTTP Response Headers
Mar 24, 2021
Alan Jo
Alan Jo
Sep 13, 2023
705808d7eb364f5ebb5314401195fbfc
HTTP ETag Header
HTTP Response Headers
Mar 21, 2021
Alan Jo
Alan Jo
Sep 13, 2023
## Entity Tag **ํŠน์ • ๋ฒ„์ „์˜ ๊ตฌ์„ฑ ์š”์†Œ๋ฅผ ๊ณ ์œ ํ•˜๊ฒŒ ์‹๋ณ„ํ•˜๋Š” ๋ฌธ์ž์—ด์œผ๋กœ ์ผ์ข…์˜ ํ•ด์‹œ๊ฐ’** ๊ฐ•ํ•œ ๊ฒ€์ฆ, ์•ฝํ•œ ๊ฒ€์ฆ์ด ์กด์žฌ - ์•ฝํ•œ ๊ฒ€์ฆ์„ ํ•˜๊ณ  ์‹ถ์œผ๋ฉด W/๋ฅผ ์•ž์— ๋ถ™์ด๊ธฐ ์‘๋‹ต ๋ฐ›์•˜์„ ๋•Œ Etag ๊ฐ’์€ If-None-Match ํ—ค๋”์— ํฌํ•จ์‹œ์ผœ ์ „์†ก ํ›„ ์œ ํšจ์„ฑ์„ ํŒ๋‹จ ETag HTTP ์‘๋‹ต ํ—ค๋”๋Š” ํŠน์ • ๋ฒ„์ „์˜ ๋ฆฌ์†Œ์Šค๋ฅผ ์‹๋ณ„ํ•˜๋Š” ์‹๋ณ„์ž ์›น ์„œ๋ฒ„๊ฐ€ ๋‚ด์šฉ์„ ํ™•์ธํ•˜๊ณ  ๋ณ€ํ•˜์ง€ ์•Š์•˜์œผ๋ฉด, ์›น ์„œ๋ฒ„๋กœ full ์š”์ฒญ์„ ๋ณด๋‚ด์ง€ ์•Š๊ธฐ ๋•Œ๋ฌธ์—, ์บ์‰ฌ๊ฐ€ ๋” ํšจ์œจ์ ์ด๊ฒŒ ๋˜๊ณ , ๋Œ€์—ญํญ๋„ ์•„๋‚„ ์ˆ˜ ์žˆ๋‹ค ํ—ˆ๋‚˜, ๋งŒ์•ฝ ๋‚ด์šฉ์ด ๋ณ€๊ฒฝ๋˜์—ˆ๋‹ค๋ฉด, "mid-air collisions" ์ด๋ผ๋Š” ๋ฆฌ์†Œ์Šค ๊ฐ„์˜ ๋™์‹œ ๋‹ค๋ฐœ์  ์ˆ˜์ • ๋ฐ ๋ฎ์–ด์“ฐ๊ธฐ ํ˜„์ƒ์„ ๋ง‰๋Š”๋ฐ ์œ ์šฉํ•˜๊ฒŒ ์‚ฌ์šฉ [Etag Hash](https://texonom.com/etag-hash-449c540c1e75410292502b4486ac96a9) 1. ๋จผ์ € Etag๋‚˜ Last-Modified์™€ ํ•จ๊ป˜ ์˜จ๋‹ค 2. ๋ธŒ๋ผ์šฐ์ €๊ฐ€ ๊ตฌ์„ฑ ์š”์†Œ์˜ ์œ ํšจ์„ฑ์„ ๊ฒ€์‚ฌํ•ด์•ผํ•˜๋Š” ๊ฒฝ์šฐ If-None-Match๋‚˜ If-Modified-Since ํ—ค๋”๋ฅผ ์‚ฌ์šฉํ•˜์—ฌ ETag๋‚˜ Last-Modified ๊ฐ’์„ ์›๋ž˜ ์„œ๋ฒ„๋กœ ๋‹ค์‹œ ์ „๋‹ฌ 3. ์ผ์น˜ํ•˜๋ฉด 304 > [https://black7375.tistory.com/81](https://black7375.tistory.com/81) > [ETag](https://developer.mozilla.org/ko/docs/Web/HTTP/Headers/ETag)
e27a505da3024ae0a267d761779dfb28
HTTP Expires Header
HTTP Response Headers
Mar 24, 2021
Alan Jo
Alan Jo
Sep 13, 2023
5115ec7a858d4a80aff3cf27082ea3b7
HTTP Feature-Policy Header
HTTP Response Headers
Mar 22, 2021
Alan Jo
Alan Jo
Sep 13, 2023
Feature Policy allows web developers to selectively enable, disable, and modify the behavior of certain features and APIs in the browser
20c423a8ce264f15ada8dbe42c5ae5e1
HTTP Referrer-Policy Header
HTTP Response Headers
Mar 22, 2021
Alan Jo
Alan Jo
Sep 13, 2023
HTTP header controls how much referrer information (sent via the Referer header) should be included with requests. [referrer information](https://texonom.com/referrer-information-4626b115d95c45e9839f249a4f058583)
902e2bb7197140ac9c9cc1d03e3d48cd
HTTP Set-Cookie Header
HTTP Response Headers
Aug 17, 2021
Alan Jo
Alan Jo
Sep 13, 2023
[HTTP Cookie](https://texonom.com/http-cookie-5a2a27c54b6a4ec5830512b25a2d8300) [HTTP Cookie Header](https://texonom.com/http-cookie-header-c93a0869e98e442dbc7e3dffa9ea2987)
๋ธŒ๋ผ์šฐ์ €๋Š” Set-Cookie ์— ์žˆ๋Š” ๋ฐ์ดํ„ฐ๋ฅผ ์ €์žฅ
ac388b956c3e4a19bede0b67326e8a04
HTTP Strict-Transport-Security Header
HTTP Response Headers
Mar 22, 2021
Alan Jo
Alan Jo
Sep 13, 2023
ํ”„๋กœํ† ์ฝœ ๋‹ค์šด ๊ทธ๋ ˆ์ด๋“œ ๊ณต๊ฒฉ ๋ฐ ์ฟ ํ‚ค ํ•˜์ด์žฌํ‚น๊ณผ ๊ฐ™์€ ์ค‘๊ฐ„์ž ๊ณต๊ฒฉ์œผ๋กœ๋ถ€ํ„ฐ ์›น ์‚ฌ์ดํŠธ๋ฅผ ๋ณดํ˜ธํ•˜๋Š” ๋ฐ ๋„์›€์ด๋˜๋Š” ์›น ๋ณด์•ˆ ์ •์ฑ… ๋ฉ”์ปค๋‹ˆ์ฆ˜ HTTP Strict-Transport-Security response header (์ข…์ข… HSTS ๋กœ ์•ฝ์นญ) HTTP ๋Œ€์‹  HTTPS๋งŒ์„ ์‚ฌ์šฉํ•˜์—ฌ ํ†ต์‹ ํ•ด์•ผํ•œ๋‹ค๊ณ  ์›น์‚ฌ์ดํŠธ๊ฐ€ ๋ธŒ๋ผ์šฐ์ €์— ์•Œ๋ฆฌ๋Š” ๋ณด์•ˆ ๊ธฐ๋Šฅ
50508d9ad2eb419f97951b0b6fc5c7d0
HTTP Vary Header
HTTP Response Headers
Jun 8, 2021
Alan Jo
Alan Jo
Sep 13, 2023
[Web Varnish Cache](https://texonom.com/web-varnish-cache-c1ac9c51942e433a8f67578a218ba9b2)
์‘๋‹ต ๊ฒฐ๊ณผ์— ๋Œ€ํ•ด ์•ž์œผ๋กœ ๋“ค์–ด์˜ค๋Š” ์š”์ฒญ์€ ์บ์‹œ๋œ ๋ฐ์ดํ„ฐ๋ฅผ ๋ฐ˜ํ™˜ํ• ์ง€ ์•„๋‹ˆ๋ฉด ๋ฐฑ์—”๋“œ ์„œ๋ฒ„๋กœ ์ „๋‹ฌํ•  ์ง€ ๊ฒฐ์ •ํ•˜๋Š” ๊ณผ์ •์—์„œ ํ™œ์šฉ ```typeVary: <header-name>, <header-name>, โ€ฆ``` > [Varnish ์บ์‹œ ํžˆํŠธ ํšจ์œจ์„ ๋†’์ด๋Š” ๋ฐฉ๋ฒ• :: ์กฐ์€์šฐ ๊ฐœ๋ฐœ ๋ธ”๋กœ๊ทธ](https://jonnung.dev/system/2020/03/18/increasing-varnish-cache-hit-rate/)
09a8d825b3c94aa29d9dcb93c3a33bd1
HTTP x-cache-expired-at Header
HTTP Response Headers
Mar 21, 2021
Alan Jo
Alan Jo
Sep 13, 2023
cache ๋งŒ๋ฃŒ์‹œ๊ฐ„
1993905431b0425dbeb99ca477286334
HTTP x-cache-status Header
HTTP Response Headers
Mar 21, 2021
Alan Jo
Alan Jo
Sep 13, 2023
cache HIT ์—ฌ๋ถ€
697a8cd8fe094615a3608ee313c692e4
HTTP X-Frame-Options Header
HTTP Response Headers
Mar 22, 2021
Alan Jo
Alan Jo
Sep 13, 2023
ํ•ด๋‹น ํŽ˜์ด์ง€๋ฅผ ๋˜๋Š” <frame> ๋˜๋Š”<iframe>, <object> ์—์„œ ๋ Œ๋”๋งํ•  ์ˆ˜ ์žˆ๋Š”์ง€ ์—ฌ๋ถ€๋ฅผ ๋‚˜ํƒ€๋‚ด๋Š”๋ฐ ์‚ฌ์šฉ์—์„œ ๋ Œ๋”๋งํ•  ์ˆ˜ ์žˆ๋Š”์ง€ ์—ฌ๋ถ€๋ฅผ ๋‚˜ํƒ€๋‚ด๋Š”๋ฐ ์‚ฌ์šฉ ์‚ฌ์ดํŠธ ๋‚ด ์ฝ˜ํ…์ธ ๋“ค์ด ๋‹ค๋ฅธ ์‚ฌ์ดํŠธ์— ํฌํ•จ๋˜์ง€ ์•Š๋„๋ก ํ•˜์—ฌ clickjacking ๊ณต๊ฒฉ์„ ๋ง‰๊ธฐ ์œ„ํ•ด ์ด ํ—ค๋”๋ฅผ ์‚ฌ์šฉ ์ด ์‘๋‹ต์ด ํ”„๋ ˆ์ž„์˜ ์ผ๋ถ€๋กœ ์‚ฌ์šฉ๋  ์ˆ˜ ์žˆ๋Š”์ง€๋ฅผ ์ง€์ •ํ•˜๊ฒŒ ํ•ด์ฃผ๋Š” ํ—ค๋” ์•ž์— X๊ฐ€ ๋ถ™์–ด ์žˆ๊ธด ํ•˜์ง€๋งŒ RFC 7034๋กœ ํ‘œ์ค€์˜ ์ผ๋ถ€
d8affb7e4900415e8ddf374cac8ec7b0
HTTP X-XSS-Protection Header
HTTP Response Headers
Mar 22, 2021
Alan Jo
Alan Jo
Sep 13, 2023
**X-XSS-Protection** Reflected XSS ๊ณต๊ฒฉ์„ ๊ฐ์ง€ํ–ˆ์„ ๋•Œ ์ž๋™์œผ๋กœ ์‚ฌ์ดํŠธ์˜ ๋กœ๋“œ๋ฅผ ์ค‘๋‹จํ•ด์ฃผ๋Š” ๋ธŒ๋ผ์šฐ์ € ๊ธฐ๋Šฅ
acea655f80ab4ca4a5297be19f4a9a45
Etag Hash
HTTP ETag Header
null
null
null
null
null
449c540c1e75410292502b4486ac96a9
referrer information
HTTP Referrer-Policy Header
null
null
null
null
null
HTTP ๋ฆฌํผ๋Ÿฌ๋Š” ์›น ๋ธŒ๋ผ์šฐ์ €๋กœ ์›”๋“œ ์™€์ด๋“œ ์›น์„ ์„œํ•‘ํ•  ๋•Œ, ํ•˜์ดํผ๋งํฌ๋ฅผ ํ†ตํ•ด์„œ ๊ฐ๊ฐ์˜ ์‚ฌ์ดํŠธ๋กœ ๋ฐฉ๋ฌธ์‹œ ๋‚จ๋Š” ํ”์ 
4626b115d95c45e9839f249a4f058583
HTTP Early Hints
HTTP Status Code
null
null
null
null
null
### 103 [HTTP2 Server Push](https://texonom.com/http2-server-push-478fcc57b6634c919462cad5c4b025d3) > [HTTP์˜ ์ƒˆ๋กœ์šด ์ƒํƒœ ์ฝ”๋“œ: 103 Early Hints](https://tech.ssut.me/http-103-early-hints/) > [103 Early Hints](https://chromium.googlesource.com/chromium/src/+/master/docs/early-hints.md) > [Untitled](https://blog.cloudflare.com/early-hints/)
a845272a5a07409ab6ab922c93dba307
http DELETE
HTTP Verbs
Jan 1, 2021
Alan Jo
Alan Jo
Jun 28, 2021
460465b336cf4e409fca185bce33b7a7
HTTP GET
HTTP Verbs
Jun 28, 2021
Alan Jo
Alan Jo
Jun 28, 2021
a44216dc2d4b4ff98aa5d1fb4746a105
http PATCH
HTTP Verbs
Jul 31, 2022
Alan Jo
Alan Jo
Jul 31, 2022
์ผ๋ถ€๋ณ€๊ฒฝ
a98847e32bf44457933ee48024703d8a
http POST
HTTP Verbs
Jan 1, 2021
Alan Jo
Alan Jo
Jun 28, 2021
be36bb912a994604b9ff2921ae4c988d
http PUT
HTTP Verbs
Jul 31, 2022
Alan Jo
Alan Jo
Jul 31, 2022
์ผ๋ถ€๋ณ€๊ฒฝ๋ณด๋‹จ ๋Œ€์ฒด > [Untitled](https://jaehoney.tistory.com/90)
0f5a40d063ea4726bb92faf244de35bc
HTTP Range GET
HTTP GET Usage
Jun 28, 2021
Alan Jo
Alan Jo
Jun 28, 2021
์ •์ ์ด๊ณ  ํฐ ํŒŒ์ผ์„ ๋ฐ›์•„์˜ฌ ๋•Œ ์œ ์šฉํ•จ ![](https://www.notion.so/image/https%3A%2F%2Fs3-us-west-2.amazonaws.com%2Fsecure.notion-static.com%2Fc317ab11-8c7e-40da-b3ae-43ee209c3bd6%2FUntitled.png?table=block&id=7d33efff-4f9b-4571-9180-577c8142de03&cache=v2) ์‚ฌ์ด์ฆˆ๊ฐ€ ํฐ Content์— ๋Œ€ํ•ด์„œ Client Application์—์„œ 1๊ฐœ์˜ Connection์œผ๋กœ๋งŒ ๋ฐ์ดํ„ฐ๋ฅผ ๋ฐ›๋Š” ๊ฒƒ๋ณด๋‹ค, ์—ฌ๋Ÿฌ๊ฐœ์˜ byte ๋‹จ์œ„๋กœ ๋ถ„ํ• ํ•˜์—ฌ ๋™์‹œ์— ๋‹ค์šด๋กœ๋“œ ๋ฐ›์„์‹œ Network Bandwidth ํ—ˆ์šฉ ๋ฒ”์œ„ ๋‚ด์—์„œ ๋น ๋ฅด๊ฒŒ ๋‹ค์šด๋กœ๋“œ > [Amazon CloudFront: Range GET Behavior](https://medium.com/ctc-mzc/amazon-cloudfront-range-get-behavior-e419e22f128f)
4789b7aa155b4886a7971308737b6f17
HTTP Hybrid Deployment
HTTP Version Notion
Jun 23, 2021
null
null
null
![](https://www.notion.so/image/https%3A%2F%2Fwww.nginx.com%2Fwp-content%2Fuploads%2F2020%2F06%2FHTTP-v1-v2-hybrid-topology.png?table=block&id=106baf8f-09cc-4c15-97e4-b6c344f3e8d7&cache=v2) > [Introducing a Technology Preview of NGINX Support for QUIC and HTTP/3 - NGINX](https://www.nginx.com/blog/introducing-technology-preview-nginx-support-for-quic-http-3/)
8f1806d040814d32bb734cf5f2575f09
HTTP/0.9
HTTP Versions
Jul 25, 2021
null
null
null
Sir Timothy John Berners-Lee , also known as TimBL English computer scientist and the inventor of the WWW He created the one-line HTTP protocol in 1989 It simply returns a webpage This protocol was named HTTP/0.9 in 1991 It is a simple one-page specification It has only one method, GET no HTTP headers, no status/error codes, no cookies, and no other modern features HTTP/0.9 is built over TCP The connection is terminated immediately after the response > [The HTTP Protocol As Implemented In W3](https://www.w3.org/Protocols/HTTP/AsImplemented.html) > [What's New in HTTP/3?](https://betterprogramming.pub/whats-new-in-http-3-10c2455a4f8c)
4f95754cb6844bf7bb1a059ee64c0a0a
HTTP/1
HTTP Versions
May 11, 2021
null
null
null
1996๋…„ ์ฒ˜์Œ 1.0๋ฒ„์ „์ด release - GET, Head, and POST - additional terminologies: message, resource, entity, client, user agent, server, origin server, proxy, gateway, tunnel, and cache > [What's New in HTTP/3?](https://betterprogramming.pub/whats-new-in-http-3-10c2455a4f8c)
bd41ff56e5e245a581e47a6b2d61d438
HTTP/1.1
HTTP Versions
May 11, 2021
null
null
null
[RESTful](https://texonom.com/restful-cddc821aa86e42ccab831ecfc22c007d) [HTTPS](https://texonom.com/https-055d5ea9284841cb86885c0848ddeb4d) [HTTP Verb](https://texonom.com/http-verb-bf6fcc307e1a42868dac627435e81578)
## The first standardized version of HTTP published in early 1997, only a few months after HTTP/1.0 supports seven methods: OPTIONS, GET, HEAD, POST, PUT, DELETE, and TRACE ๊ธฐ๋ณธ์ ์œผ๋กœ Connection๋‹น ํ•˜๋‚˜์˜ ์š”์ฒญ์„ ์ฒ˜๋ฆฌ ํ•˜๋„๋ก ์„ค๊ณ„ ๋™์‹œ์ „์†ก์ด ๋ถˆ๊ฐ€๋Šฅํ•˜๊ณ  ์š”์ฒญ๊ณผ ์‘๋‹ต์ด ์ˆœ์ฐจ์  1. DNS ์กฐํšŒ. ํ˜ธ์ŠคํŠธ ์ด๋ฆ„์— ๋Œ€ํ•ด์„œ DNS ์กฐํšŒ ํ›„ ์—ฐ๊ฒฐํ•  IP์ฃผ์†Œ๋ฅผ ํ™•๋ณด 2. TCP ์—ฐ๊ฒฐ์„ ์œ„ํ•œ ํ•ธ๋“œ์‰์ดํฌ 3. TLS ์—ฐ๊ฒฐ์„ ์œ„ํ•œ ํ•ธ๋“œ์‰์ดํฌ 4. HTTP ์š”์ฒญ ์ „์†ก 5. HTTP ์‘๋‹ต ์ˆ˜์‹  ## Historic Accidents - RFC 5789 added PATCH in 2010 - RFC 7231 added CONNECT in 2014 - HTTPS emerged - Roy Fielding led a group of experts that invented REST - representation - content negotiation - variant - cachable - first-hand - explicit expiration time - heuristic expiration time - age - freshness lifetime - fresh - stale - semantically transparent - validator ### Enhancement - Virtual hosting allows multiple domains to be served from a single IP address - The persistent and pipelined connections allow a web browser to send multiple requests over a single persistent connection - **The chunked encoding allows a response to be sent before its total length is known. This enables dynamically generated pages** > [rfc2068](https://datatracker.ietf.org/doc/html/rfc2068) > [QUIC๊ณผ HTTP/3 - 2. ๊ธฐ์กด์˜ ์„ฑ๋Šฅ ๊ฐœ์„  ๊ธฐ๋ฒ• ๋ฐ ํ•œ๊ณ„](https://www.saturnsoft.net/network/2019/03/26/quic-http3-2/) Roy Fielding led a group of experts that invented REST
b35cef6c34ee40b5b3a433d1761c452d
HTTP/2
HTTP Versions
Apr 26, 2021
null
null
null
[Stream Processing](https://texonom.com/stream-processing-1fc4a9c49c144806922512b26c0d8231)
### speed increase offered by multiplexing for the browser connections targets more efficient use of network resources > [What's New in HTTP/3?](https://betterprogramming.pub/whats-new-in-http-3-10c2455a4f8c) > [QUIC๊ณผ HTTP/3 - 2. ๊ธฐ์กด์˜ ์„ฑ๋Šฅ ๊ฐœ์„  ๊ธฐ๋ฒ• ๋ฐ ํ•œ๊ณ„](https://www.saturnsoft.net/network/2019/03/26/quic-http3-2/) > [HTTP/2 ์†Œ๊ฐœ | Web Fundamentals | Google Developers](https://developers.google.com/web/fundamentals/performance/http2?hl=ko) > [HTTP/2 and SPDY indicator](https://chrome.google.com/webstore/detail/http2-and-spdy-indicator/mpbpobfflnpcgagjijhmgnchggcjblin)
f65b3a2089cf42368339cbec3fd34ec0
HTTP/3
HTTP Versions
Jun 21, 2020
null
null
null
[Cloudflare](https://texonom.com/cloudflare-878e4d0e330a430f9b2fe653de49c523)
### published on May 27, 2021 ### Explained > [Introduction](https://http3-explained.haxx.se/) ### HTTP/3 Basic > [HTTP/3 From A To Z: Core Concepts (Part 1) - Smashing Magazine](https://www.smashingmagazine.com/2021/08/http3-core-concepts-part1/) > [HTTP/3 is Fast | Request Metrics](https://requestmetrics.com/web-performance/http3-is-fast) ### Korean > [HTTP3, ์‚ฌ์‹ค ์ง„์งœ๋กœ ๋ฐ”๋€๊ฑด TCP ์˜€๋‹ค.](https://www.hamadevelop.me/http3/) > [What's New in HTTP/3?](https://betterprogramming.pub/whats-new-in-http-3-10c2455a4f8c)
dc9386ade9324c7ba2fcbf9b4f237591
NPN
HTTP/1 Notion
May 11, 2021
Alan Jo
Alan Jo
May 11, 2021
f4227596e87f4bd4ba482d0908c8687f
ALPN
HTTP/2 Notion
Apr 26, 2021
Alan Jo
Alan Jo
May 11, 2021
[HTTPS](https://texonom.com/https-055d5ea9284841cb86885c0848ddeb4d) [TLS](https://texonom.com/tls-2ac2c3475b704170926ee2d5f9a7d285)
RFC 7301์—์„œ ์ •์˜๋˜๋Š” TLS์˜ ํ™•์žฅ ๊ธฐ์กด์— ๊ฐ™์€ ๋ชฉ์ ์œผ๋กœ ์“ฐ์˜€๋˜ [NPN](https://texonom.com/npn-f4227596e87f4bd4ba482d0908c8687f) ์„ ๋Œ€์ฒดํ•˜๊ธฐ ์œ„ํ•ด ์ž‘์„ฑ ๋ธŒ๋ผ์šฐ์ €๊ฐ€ HTTPS ์—ฐ๊ฒฐ์„ ๋งŒ๋“ค๊ธฐ ์œ„ํ•ด์„œ๋Š” ๋จผ์ € TLS ์—ฐ๊ฒฐ์ด ๋งŒ๋“ค์–ด์ ธ์•ผ ALPN์„ ์ง€์›ํ•˜๋Š” ๋ธŒ๋ผ์šฐ์ €๋Š” TLS ์„œ๋ฒ„์— ์‚ฌ์šฉ ๊ฐ€๋Šฅํ•œ ์•Œ๊ณ ๋ฆฌ์ฆ˜๊ณผ TLS ๋ฒ„์ „์„ ๋ณด๋‚ด๋Š” ClientHello ๊ณผ์ •์—์„œ ์ง€์›ํ•˜๋Š” ์• ํ”Œ๋ฆฌ์ผ€์ด์…˜ ํ”„๋กœํ† ์ฝœ ๋ชฉ๋ก์„ ์ถ”๊ฐ€ ์„œ๋ฒ„๋Š” ์ด TLS ClientHello๋ฅผ ๋ฐ›๊ณ , h2๊ฐ€ ํ”„๋กœํ† ์ฝœ ๋ชฉ๋ก์— ์žˆ์œผ๋ฉฐ ์„œ๋ฒ„๊ฐ€ HTTP/2๋ฅผ ์ง€์›ํ•˜๋Š” ๊ฒฝ์šฐ HTTP/2๋กœ ํ†ต์‹  HTTP/2๋กœ ์ „ํ™˜ํ•˜๋Š” ๊ณผ์ •์ด TLS๋ฅผ ๋™๋ฐ˜ํ•˜๊ธฐ ๋•Œ๋ฌธ์—, ์ผ๋ฐ˜์ ์ธ HTTP/1.1์—์„œ HTTP/2๋กœ ๋ฐ”๊ฟ€ ์ˆ˜ ์—†๋Š” ๊ฒƒ ๋ช…์„ธ ์ƒ์œผ๋กœ๋Š” Upgrade ํ—ค๋”๋ฅผ ํ†ตํ•ด ์•”ํ˜ธํ™”๋˜์ง€ ์•Š์€ HTTP/1.1์„ HTTP/2๋กœ ์—…๊ทธ๋ ˆ์ด๋“œํ•  ์ˆ˜ ์žˆ๋„๋ก ๊ณ ์•ˆ๋˜์–ด ์žˆ์ง€๋งŒ, ๋ชจ์งˆ๋ผ ํŒŒ์ด์–ดํญ์Šค์™€ ๊ตฌ๊ธ€ ํฌ๋กฌ์ด TLS์—์„œ๋งŒ HTTP/2๋กค ์ง€์›ํ•˜๋„๋ก ๊ฒฐ์ •ํ•˜๋ฉด์„œ ์‚ฌ์‹ค์ƒ ์‚ฌ์šฉ๋˜์ง€ ์•Š๋Š”๋‹ค ์ผ๋ถ€ ์ค‘๊ฐ„ ์‹œ์Šคํ…œ์ด 80 ํฌํŠธ์—์„œ HTTP/1.1์„ ์ƒ์ •ํ•˜๊ณ  HTTP/2 ํ†ต์‹ ์„ ์†์ƒ์‹œํ‚ฌ ์šฐ๋ ค๊ฐ€ ์žˆ์—ˆ๊ธฐ ๋•Œ๋ฌธ > [๋ธŒ๋ผ์šฐ์ €์— google.com์„ ์น˜๋ฉด ๋ฌด์Šจ ์ผ์ด ์ผ์–ด๋‚ ๊นŒ? (์•„๋‹ˆ, ์ง„์งœ๋กœ) - ๋„คํŠธ์›ŒํฌํŽธ](https://velog.io/@rtyu1120/%EB%B8%8C%EB%9D%BC%EC%9A%B0%EC%A0%80%EC%97%90-google.com%EC%9D%84-%EC%B9%98%EB%A9%B4-%EB%AC%B4%EC%8A%A8-%EC%9D%BC%EC%9D%B4-%EC%9D%BC%EC%96%B4%EB%82%A0%EA%B9%8C-%EC%95%84%EB%8B%88-%EC%A7%84%EC%A7%9C%EB%A1%9C-%EB%84%A4%ED%8A%B8%EC%9B%8C%ED%81%AC%ED%8E%B8)
2aff059817a5437482debf5ca4f00a99
HPACK
HTTP/2 Notion
Jul 25, 2021
Alan Jo
Alan Jo
Jul 25, 2021
[QPACK](https://texonom.com/qpack-1f26c953abde4d07a4b0b012c3c4eb21)
request and response headers are compressed by HPACK
ca414a54b1c04d7ebaa55f5152cf1f12
HTTP/2 Buffer
HTTP/2 Notion
Jun 1, 2021
Alan Jo
Alan Jo
Jun 1, 2021
์ตœ๊ทผ์˜ OS TCP ์Šคํƒ์€ ์ˆ˜์‹  ๋ฒ„ํผ์˜ ์ž๋™ ์กฐ์ • ํ˜„์žฌ์˜ BDP (๋Œ€์—ญํญ-์ง€์—ฐ์‹œ๊ฐ„ ๊ณฑ)์— ๊ธฐ๋ฐ˜ > [HTTP/2 ์—…๋กœ๋“œ ์†๋„ ํ–ฅ์ƒ๊ธฐ](https://blog.cloudflare.com/ko-kr/delivering-http-2-upload-speed-improvements-ko-kr/)
6f9166390b8343bfa54ba8704d3cfafe
http2 Concurrent Request
HTTP/2 Notion
Jun 1, 2021
Alan Jo
Alan Jo
Aug 17, 2021
[QUIC](https://texonom.com/quic-d6a41b58fbc4414fb652d9d51878b6b7)
ํ•˜๋‚˜์˜ TCP ์ปค๋„ฅ์…˜ ์—์„œ๋„ ์—ฌ๋Ÿฌ ํŒŒ์ผ์„ ์ „์†กํ•  ์ˆ˜ ์žˆ๋„๋ก ํ•˜์ง€๋งŒ, TCP๋Š” ํ•˜๋‚˜์˜ ์ปค๋„ฅ์…˜์„ ํ•˜๋‚˜์˜ ํŒŒ์ผ๋กœ ์ทจ๊ธ‰ํ•˜๊ธฐ์— ํŒจํ‚ท ๋กœ์Šค๊ฐ€ ๋ฐœ์ƒํ•˜๋ฉด, ํ•ด๋‹น ํŒŒ์ผ ๋ฟ๋งŒ ์•„๋‹ˆ๋ผ TCP ์ปค๋„ฅ์…˜์„ ๊ณต์œ ํ•˜๋Š” ๋‹ค๋ฅธ ํŒŒ์ผ๋“ค์˜ ํŒจํ‚ท๋„ ์ค‘๋‹จ์ด ๋˜๋Š” ๋ฌธ์ œ๊ฐ€ ๋ฐœ์ƒํ•  ์ˆ˜๋„ ### example > [https://http2.golang.org/gophertiles?latency=30](https://http2.golang.org/gophertiles?latency=30) > [HTTP3, ์‚ฌ์‹ค ์ง„์งœ๋กœ ๋ฐ”๋€๊ฑด TCP ์˜€๋‹ค.](https://www.hamadevelop.me/http3/)
8bbdec61e57d4a8bb6377b47ad16c828
HTTP2 Header Compression
HTTP/2 Notion
Jun 1, 2021
Alan Jo
Alan Jo
Jun 1, 2021
์ „์†ก๋‹น 500~800๋ฐ”์ดํŠธ์˜ ์˜ค๋ฒ„ํ—ค๋“œ HTTP ์ฟ ํ‚ค๋ฅผ ์‚ฌ์šฉํ•  ๊ฒฝ์šฐ ์ˆ˜ KB๊ฐ€ ์ถ”๊ฐ€๋˜๊ธฐ๋„ ์˜ค๋ฒ„ํ—ค๋“œ๋ฅผ ์ค„์ด๊ณ  ์„ฑ๋Šฅ์„ ๊ฐœ์„ ํ•˜๊ธฐ ์œ„ํ•ด HTTP/2์—์„œ๋Š” HPACK ์••์ถ• ํ˜•์‹์„ ์‚ฌ์šฉํ•˜์—ฌ ์š”์ฒญ ๋ฐ ์‘๋‹ต ํ—ค๋” ๋ฉ”ํƒ€๋ฐ์ดํ„ฐ๋ฅผ ์••์ถ• ๋‹จ์ˆœํ•˜์ง€๋งŒ ๊ฐ•๋ ฅํ•œ ๋‘ ๊ฐ€์ง€ ๊ธฐ์ˆ ์„ ์‚ฌ์šฉ 1. ์ „์†ก๋˜๋Š” ํ—ค๋” ํ•„๋“œ๋ฅผ ์ •์  Huffman ์ฝ”๋“œ๋กœ ์ธ์ฝ”๋”ฉํ•˜๋„๋ก ํ—ˆ์šฉ 2. ์ด์ „์— ํ‘œ์‹œ๋œ ํ—ค๋” ํ•„๋“œ์˜ ์ƒ‰์ธ ๋ชฉ๋ก์„ ํด๋ผ์ด์–ธํŠธ์™€ ์„œ๋ฒ„๊ฐ€ ์œ ์ง€ํ•˜๊ณ  ์—…๋ฐ์ดํŠธํ•˜๋„๋ก ์š”๊ตฌ, ์ด ๋ชฉ๋ก์„ ์ฐธ์กฐ๋กœ ์‚ฌ์šฉํ•˜์—ฌ ์ด์ „์— ์ „์†ก๋œ ๊ฐ’์„ ํšจ์œจ์ ์œผ๋กœ ์ธ์ฝ”๋”ฉ ![](https://www.notion.so/image/https%3A%2F%2Fdevelopers.google.com%2Fweb%2Ffundamentals%2Fperformance%2Fhttp2%2Fimages%2Fheader_compression01.svg%3Fhl%3Dko?table=block&id=755dcf62-3f7b-4ea2-9031-fd6fd0e89dab&cache=v2) ๋” ๋‚˜์€ ์ตœ์ ํ™”๋ฅผ ์œ„ํ•ด HPACK ์••์ถ• ์ปจํ…์ŠคํŠธ๋Š” ์ •์  ๋ฐ ๋™์  ํ…Œ์ด๋ธ”๋กœ ๊ตฌ์„ฑ ์ดˆ๊ธฐ ๋ฒ„์ „์˜ HTTP/2 ๋ฐ SPDY์—์„œ๋Š” ์‚ฌ์šฉ์ž์„ค์ • ์‚ฌ์ „๊ณผ ํ•จ๊ป˜ zlib๋ฅผ ์‚ฌ์šฉํ•˜์—ฌ ๋ชจ๋“  HTTP ํ—ค๋”๋ฅผ ์••์ถ• ์ด ๊ฒฝ์šฐ ์ „์†ก๋˜๋Š” ํ—ค๋” ๋ฐ์ดํ„ฐ์˜ ํฌ๊ธฐ๊ฐ€ 85%~88% ๊ฐ์†Œ๋˜์—ˆ๊ณ  ํŽ˜์ด์ง€ ๋กœ๋“œ ์‹œ๊ฐ„ ์ง€์—ฐ ์‹œ๊ฐ„์ด ์ƒ๋‹นํžˆ ๊ฐœ์„  ๊ทธ๋Ÿฌ๋‚˜ 2012๋…„ ์—ฌ๋ฆ„ TLS ๋ฐ SPDY ์••์ถ• ์•Œ๊ณ ๋ฆฌ์ฆ˜์— ๋Œ€ํ•ด 'CRIME' ๋ณด์•ˆ ๊ณต๊ฒฉ๊ณผ ์„ธ์…˜ ํ•˜์ด์žฌํ‚น ์‹œ๋„๊ฐ€ ์žˆ์—ˆ๋‹ค๊ณ  ๋ฐœํ‘œ๋˜์—ˆ์Šต๋‹ˆ๋‹ค. ๊ทธ ๊ฒฐ๊ณผ, zlib ์••์ถ• ์•Œ๊ณ ๋ฆฌ์ฆ˜์ด HPACK์œผ๋กœ ๊ต์ฒด HPACK ์•Œ๊ณ ๋ฆฌ์ฆ˜์€ ๊ฒ€์ƒ‰๋œ ๋ณด์•ˆ ๋ฌธ์ œ๋ฅผ ํ•ด๊ฒฐํ•˜๊ณ , ๊ตฌํ˜„์ด ํšจ์œจ์ ์ด๊ณ  ๋‹จ์ˆœํ•˜๋ฉฐ, HTTP ํ—ค๋” ๋ฉ”ํƒ€๋ฐ์ดํ„ฐ์˜ ์••์ถ•์ด ๋›ฐ์–ด๋‚˜๋„๋ก ์„ค๊ณ„ > [HTTP/2 ์†Œ๊ฐœ | Web Fundamentals | Google Developers](https://developers.google.com/web/fundamentals/performance/http2?hl=ko)
60b270aea51741acbc85529ba085a764
HTTP/2 History
HTTP/2 Notion
Jul 25, 2021
Alan Jo
Alan Jo
Jul 25, 2021
The specification was published in 2015
885e4fcdf2f54071b610afdccf12260b
HTTP/2 Implementation
HTTP/2 Notion
Jun 1, 2021
Alan Jo
Alan Jo
Jun 1, 2021
### HTTP/2 Implementations |Title| |:-:| |[h2 Protocol](https://texonom.com/h2-protocol-191d45dc94754d7894bc75873c605fcc)|
baedd317af104ccdbdddbadf44cd41d8
HTTP/2 over QUIC
HTTP/2 Notion
Jul 25, 2021
Alan Jo
Alan Jo
Jul 25, 2021
[QUIC](https://texonom.com/quic-d6a41b58fbc4414fb652d9d51878b6b7) [HOL Blocking](https://texonom.com/hol-blocking-7c6fd05b40194d01bba34ab930564073)
HOL Block์˜ ๋ฌธ์ œ > [HOL(head of line) blocking](https://m.blog.naver.com/PostView.naver?isHttpsRedirect=true&blogId=parkjy76&logNo=220886731736)
2681733b516f4502aa3f40523153447f
HTTP/2 Property
HTTP/2 Notion
Jul 25, 2021
Alan Jo
Alan Jo
Jul 25, 2021
parallelization, prioritization, and flow control over streams ### multiplexed protocol - a single TCP connection with any number of bidirectional streams - Parallel requests are handled over the same connection - It provides the ability to prioritize one resource over another - It allows for the unsolicited push of representations from servers to clients - The request and response headers are compressed - Frames are delivered on streams and the DATA frame payload is subject to flow control ### Common Property - HTTP2๋ถ€ํ„ฐ handshake https ํ•„์š” - introduces a new binary framing layer that is not backward-compatible > [What's New in HTTP/3?](https://betterprogramming.pub/whats-new-in-http-3-10c2455a4f8c)
6ca24ec25acf447685973c2927380e75
HTTP2 Server Push
HTTP/2 Notion
Jun 1, 2021
Alan Jo
Alan Jo
Aug 21, 2022
[Service Worker](https://texonom.com/service-worker-df54a2fca9ca4927a6aaf7adc70c2da7)
### chrome 106์—์„œ default Disabled ๋˜๊ณ  [HTTP Early Hints](https://texonom.com/http-early-hints-a845272a5a07409ab6ab922c93dba307) ๋กœ ๋Œ€์ฒดํ•˜๋„๋ก ๊ถŒ์œ  ํด๋ผ์ด์–ธํŠธ๊ฐ€ ์š”์ฒญํ•˜๊ธฐ ์ „์— HTTP / 2 ํ˜ธํ™˜ ์„œ๋ฒ„๊ฐ€ HTTP / 2 ํ˜ธํ™˜ ํด๋ผ์ด์–ธํŠธ๋กœ ๋ฆฌ์†Œ์Šค๋ฅผ ๋ณด๋ƒ„ ์„œ๋น„์Šค ์›Œ์ปค๋ฅผ ํ†ตํ•ด ์บ์‹œ๋œ ์ž์›์€ ๋ฆฌํ„ด๋ฐ›์œผ๋ฉด ์ค‘๋ณต๋˜์„œ ๋ฐ›์ง€ ์•Š๊ฒŒ ์‚ฌ์šฉํ•˜๋ฉด ๋” ์ข‹๋‹ค ์ธ์ฆ๋˜์ง€ ์•Š์€ SSL์ธ ๊ฒฝ์šฐ ํฌ๋กฌ์—์„œ ์„œ๋ฒ„ ํ‘ธ์‹œ๋œ ์ž์›์„ ๊ฑฐ์ ˆ > [Progressive Web App - HTTP2 ์„œ๋ฒ„ ํ‘ธ์‹œ(Server Push)](https://sunjoong85.github.io/pwa,/http2/2018/04/16/Pogressive-Web-App-HTTP2%EC%99%80-Server-Push.html)
478fcc57b6634c919462cad5c4b025d3
h2 Protocol
HTTP/2 Implementations
Jun 1, 2021
Alan Jo
Alan Jo
Apr 4, 2022
191d45dc94754d7894bc75873c605fcc
HTTP abort
HTTP/3 Notion
Jul 25, 2021
Alan Jo
Alan Jo
Jul 25, 2021
da1b032898904a68834ae189d8385674
HTTP Extensible Priorities
HTTP/3 Notion
Jun 29, 2023
Alan Jo
Alan Jo
Jun 29, 2023
[<script>defer](https://texonom.com/scriptdefer-76e367184949402aa5b7394209d8c31d)
## RFC 9218 **a new standard that speeds the loading of webpages by up to 37%** ![](https://www.notion.so/image/https%3A%2F%2Fs3-us-west-2.amazonaws.com%2Fsecure.notion-static.com%2Ffa5698c9-8f47-4f1e-bf6a-83f27d8ab8be%2FUntitled.png?table=block&id=e64a8967-fe51-4e4b-a7ef-271b7dd90391&cache=v2) ![](https://www.notion.so/image/https%3A%2F%2Fs3-us-west-2.amazonaws.com%2Fsecure.notion-static.com%2F58231e7d-6375-4649-8dae-07f0531debdd%2FUntitled.png?table=block&id=a19120aa-6e30-48f1-a7be-b7715677db51&cache=v2) > [Introducing HTTP/3 Prioritization](https://blog.cloudflare.com/better-http-3-prioritization-for-a-faster-web)
6f9f236cd5804a97b974547cf3ff52c6
HTTP/3 Connection
HTTP/3 Notion
Jul 25, 2021
Alan Jo
Alan Jo
Jul 25, 2021
HTTP/3 ์—”๋“œํฌ์ธํŠธ๋Š” HTTP/2์˜ ํ™•์žฅ์ธ Alt-Svc ํ—ค๋”๋ฅผ ํ†ตํ•ด ์ด๋ฃจ์–ด์ง HTTP ์„œ๋ฒ„๋Š” ์ด ํ—ค๋”๋ฅผ ํ†ตํ•ด HTTP/3 ์—”๋“œํฌ์ธํŠธ์˜ ์กด์žฌ๋ฅผ ์•Œ๋ฆด ์ˆ˜ ์žˆ๊ณ , ์ด๋ฅผ ํ™•์ธํ•œ ๋ธŒ๋ผ์šฐ์ €๋Š” (HTTP/3์„ ์ง€์›ํ•œ๋‹ค๋ฉด) ์ด ํ—ค๋”์— ์ ํžŒ ํฌํŠธ๋ฅผ ํ†ตํ•ด HTTP/3 ์—ฐ๊ฒฐ์„ ์ˆ˜๋ฆฝ
76301ce0da25440885fcb23859c13283
HTTP/3 HTTPS
HTTP/3 Notion
Jul 25, 2021
Alan Jo
Alan Jo
Aug 17, 2021
[HTTPS](https://texonom.com/https-055d5ea9284841cb86885c0848ddeb4d)
![](https://www.notion.so/image/https%3A%2F%2Fs3-us-west-2.amazonaws.com%2Fsecure.notion-static.com%2F7aa109bb-2177-454a-8ac6-27b8f7b5d692%2FUntitled.png?table=block&id=6397f883-8bd1-46a4-afcd-78069cea274c&cache=v2) ### TLS ํ•ธ๋“œ ์…ฐ์ดํฌ์™€ QUIC ํ•ธ๋“œ ์…ฐ์ดํฌ๊ฐ€ ๋™์‹œ์— ๋ฐœ์ƒ HTTP/3 includes TLS 1.3 encryption HTTP/3์˜ ํ•ธ๋“œ์…ฐ์ดํ‚น ๊ณผ์ •์ด HTTP ์‘๋‹ต์„ ๋ฐ›์€ ์ดํ›„์— ์ผ์–ด๋‚จ TCP ์œ„ TLS์˜ ํ•ธ๋“œ์…ฐ์ดํ‚น ๊ณผ์ •์—์„œ ALPN์œผ๋กœ HTTP/3์œผ๋กœ ์—ฐ๊ฒฐํ•  ์ˆ˜ ์—†๊ธฐ ๋•Œ๋ฌธ ![](https://www.notion.so/image/https%3A%2F%2Fs3-us-west-2.amazonaws.com%2Fsecure.notion-static.com%2Fe3daed23-1cd8-4e49-8a1f-b9339b27f88a%2FUntitled.png?table=block&id=4fe71274-e022-45f7-a954-d18ac0414cb5&cache=v2)
6e2f432276ae45859f5efff791600106
HTTP/3 Property
HTTP/3 Notion
Jul 25, 2021
Alan Jo
Alan Jo
Jul 25, 2021
QUIC ํ”„๋กœํ† ์ฝœ๋กœ ๊ตฌํ˜„
ce975fc9b5b745a48e2a8d8fb4b237bf
HTTP3 Server Push
HTTP/3 Notion
Jun 21, 2021
Alan Jo
Alan Jo
Jul 25, 2021
[HTTP2 Server Push](https://texonom.com/http2-server-push-478fcc57b6634c919462cad5c4b025d3)
Several HTTP/3 frames are used to manage server push similar to what is described in HTTP/2 Pushing is never "free", since while it saves a half round-trip it still uses bandwidth It is often hard or impossible for the server-side to actually know with a high level of certainty if a resource should be pushed or not. > [Server push](https://http3-explained.haxx.se/en/h3/h3-push)
88e89e9452104b2b9268a81a343dfb25
QUIC
HTTP/3 Notion
Jun 21, 2020
Alan Jo
Alan Jo
Jul 9, 2023
[UDP](https://texonom.com/udp-af787784332b4700b092f3c989339353) [HOL Blocking](https://texonom.com/hol-blocking-7c6fd05b40194d01bba34ab930564073)
## Quick UDP Internet Connections ([TCP](https://texonom.com/tcp-df7eb3e975524c51802126a8e9c8b245) + [TLS](https://texonom.com/tls-2ac2c3475b704170926ee2d5f9a7d285) ) Developed by Google in 2012, QUIC provides native multiplexing lost packets only impact the streams where data has been lost All frame headers and payloads are subject to flow control ![Image by Google](https://www.notion.so/image/https%3A%2F%2Fs3-us-west-2.amazonaws.com%2Fsecure.notion-static.com%2Fff463e9a-96dc-4361-9fc4-ca468ec9e222%2FUntitled.png?table=block&id=5ee184c3-cf0f-4938-8302-5a2ee788219b&cache=v2) ### QUIC Notion |Title| |:-:| |[QUIC Standard](https://texonom.com/quic-standard-b6da7b8081fc405ca30bc39cc7ba919d)| |[QUIC Implementation](https://texonom.com/quic-implementation-fa477300ac3c476cbb3c1ecc736a329b)| |[QUIC Concurrency](https://texonom.com/quic-concurrency-4bc12220a4014d4a9664159e16f2dddb)| ### QUIC Usages |Title| |:-:| |[QUIC HTTP](https://texonom.com/quic-http-6b002280bf994ba0b0f5a82f05cbb97f)| |[QUIC Lib](https://texonom.com/quic-lib-fec7856e8a074331b854e2a099e2d3f4)| |[QPACK](https://texonom.com/qpack-1f26c953abde4d07a4b0b012c3c4eb21)| |[QUIC Connection ID](https://texonom.com/quic-connection-id-bab44b1036744a1a8ce9a2a31bebadf1)| |[QUIC FEC](https://texonom.com/quic-fec-7250296886ec4e7395f6aa37565cac48)| |[QUIC Proxy](https://texonom.com/quic-proxy-44c7aa5638da40bb8d1647a2985e11e1)| ### Simplest Expressions > [The Illustrated QUIC Connection: Every Byte Explained](https://quic.xargs.org/) ### facebook QUIC [[ํŽ˜์ด์Šค๋ถ ์—”์ง€๋‹ˆ์–ด๋ง ๋ธ”๋กœ๊ทธ ๋ฒˆ์—ญ] QUIC์œผ๋กœ ์ˆ˜์‹ญ์–ต ํŠธ๋ž˜ํ”ฝ์„ ๋Œ€์‘ํ•˜๋Š” ๋ฒ•. ๋ฒˆ์—ญ์ž ๋ฐฉ์‹ ์šฐ.](https://texonom.com/-quic a6f0f26119a4417492e365134aa107bb) > [QUIC (Quick UDP Internet Connection) ๊ฐœ๋…](https://judo0179.tistory.com/41) > [QUIC ํ”„๋กœํ† ์ฝœ](https://blog.naver.com/PostView.nhn?blogId=renucs&logNo=220887163028) > [5G ์ดˆ์—ฐ๊ฒฐ์‹œ๋Œ€์— ์›น HTTP์˜ ๋Œ€์•ˆ์€ QUIC? | Ahea Team Study Blog](https://devahea.github.io/2019/04/30/5G-%EC%B4%88%EC%97%B0%EA%B2%B0%EC%8B%9C%EB%8C%80%EC%97%90-%EC%9B%B9-HTTP%EC%9D%98-%EB%8C%80%EC%95%88%EC%9D%80-QUIC/)
d6a41b58fbc4414fb652d9d51878b6b7
QUIC Concurrency
QUIC Notion
Aug 17, 2021
Alan Jo
Alan Jo
Oct 12, 2021
๊ฐœ๋ณ„ ํŒŒ์ผ์„ ๊ตฌ๋ถ„ํ•˜์—ฌ ์ค‘๊ฐ„์— ํŒจํ‚ท ๋กœ์Šค๊ฐ€ ๋ฐœ์ƒํ•ด๋„ ํ•ด๋‹น ํŒŒ์ผ์˜ ์ŠคํŠธ๋ฆผ๋งŒ ์ •์ง€๊ฐ€ ๋˜๋„๋ก ํ•  ์ˆ˜ ์žˆ๋‹ค > [HTTP3, ์‚ฌ์‹ค ์ง„์งœ๋กœ ๋ฐ”๋€๊ฑด TCP ์˜€๋‹ค.](https://www.hamadevelop.me/http3/)
4bc12220a4014d4a9664159e16f2dddb
QUIC Implementation
QUIC Notion
Oct 12, 2021
Alan Jo
Alan Jo
Aug 28, 2023
### QUIC Implementations |Title| |:-:| |[h3-29](https://texonom.com/h3-29-7681557227c847898e5a0ee6ad03e131)| |[Q050](https://texonom.com/q050-49e05bbcb946471b9ad6e8c19d908c6d)| |[quiche](https://texonom.com/quiche-ca738146a1a9498db668912483e61165)| |[msquic](https://texonom.com/msquic-a9b6d161dff24357a09124afecc49f3f)| |[sn2-quic](https://texonom.com/sn2-quic-8cad3efa2e0c48f6b26aae32d9eb0e88)| |[](https://texonom.com/1f1fd900d4a549c9a6526bb19b354f2b)| > [HTTP/3 - Wikipedia](https://en.wikipedia.org/wiki/HTTP/3#Server)
fa477300ac3c476cbb3c1ecc736a329b
QUIC Standard
QUIC Notion
Oct 12, 2021
Alan Jo
Alan Jo
Oct 12, 2021
### QUIC Standards |Title| |:-:| |[RFC 8999](https://texonom.com/rfc-8999-43ec7ca9d474486f99b582b4a38f0b55)| |[RFC 9000](https://texonom.com/rfc-9000-03e8e7a0e9e047b8a4a383f9705d9d41)| |[RFC 9001](https://texonom.com/rfc-9001-ec039027823340be8eecdaa0f0ef982a)| |[RFC 9002](https://texonom.com/rfc-9002-79bec2103ba249099f5d4506d7989655)|
b6da7b8081fc405ca30bc39cc7ba919d
[xquic](https://github.com/alibaba/xquic)
QUIC Implementations
Oct 12, 2021
Alan Jo
Alan Jo
Aug 28, 2023
1f1fd900d4a549c9a6526bb19b354f2b
h3-29
QUIC Implementations
Jun 1, 2021
Alan Jo
Alan Jo
Oct 12, 2021
IETF ์—์„œ๋Š” h3-29๋ฅผ ๊ณต์‹์ ์œผ๋กœ QUIC ํ”„๋กœํ† ์ฝœ๋กœ ๊ฐœ๋ฐœ ์ค‘
7681557227c847898e5a0ee6ad03e131
msquic
QUIC Implementations
Nov 7, 2021
Alan Jo
Alan Jo
Nov 7, 2021
### Cross-platform, C implementation of the IETF QUIC protocol > [GitHub - microsoft/msquic: Cross-platform, C implementation of the IETF QUIC protocol.](https://github.com/microsoft/msquic)
a9b6d161dff24357a09124afecc49f3f
Q050
QUIC Implementations
Jun 1, 2021
Alan Jo
Alan Jo
Oct 12, 2021
๊ตฌ๊ธ€ ์ž์ฒด QUIC ํ”„๋กœํ† ์ฝœ
49e05bbcb946471b9ad6e8c19d908c6d
quiche
QUIC Implementations
Jun 21, 2020
Alan Jo
Alan Jo
Jan 15, 2023
## Protocol TCP or QUIC (HTTP3 UDP) quiche is an implementation of the QUIC transport protocol and HTTP/3 as specified by the IETF. Protocol ํ˜ผ์žก ์ œ์–ด ์•Œ๊ณ ๋ฆฌ์ฆ˜ 2๊ฐœ ํ‘œ์ค€ ### quiche modules |Title| |:-:| |[HyStart++](https://texonom.com/hystart-d157cf120edd42c694bebd2e6a55192b)| quiche ์—์„œ HyStart++์€ ๊ธฐ๋ณธ์ ์œผ๋กœ ์ผœ์ ธ ์žˆ๊ณ  Reno ์™€ CUBIC ํ˜ผ์žก ์ œ์–ด์„œ ๋ชจ๋‘ ์ด์šฉ ๊ฐ€๋Šฅํ•˜๋ฉฐ API๋ฅผ ํ†ตํ•ด ์ œ์–ด๊ฐ€ ๊ฐ€๋Šฅ ํ•ฉ๋‹ˆ๋‹ค. ### quiche visualization tools |Title| |:-:| |[qlog](https://texonom.com/qlog-4d685edc148f42fcbf32cd83f52dad5b)| |[qvis](https://texonom.com/qvis-101e446abe484e83ae4b2e54aff6c1ec)| ### docker example > [junhochoi/quiche-docker-examples](https://github.com/junhochoi/quiche-docker-examples/tree/master/nginx) > [cloudflare/quiche](https://github.com/cloudflare/quiche) > [quiche์˜ CUBIC์™€ HyStart++ ์ง€์›](https://blog.cloudflare.com/ko/cubic-and-hystart-support-in-quiche-ko/)
ca738146a1a9498db668912483e61165
sn2-quic
QUIC Implementations
Feb 18, 2022
Alan Jo
Alan Jo
Feb 18, 2022
## amazon [s2n-quic](https://github.com/aws/s2n-quic)
8cad3efa2e0c48f6b26aae32d9eb0e88
HyStart++
quiche modules
Jun 21, 2020
Alan Jo
Alan Jo
Jun 1, 2021
CUBIC์€ ํ˜ผ์žก ํšŒํ”ผ ์ค‘์˜ CWND ์ฆ๊ฐ€๋งŒ์„ ๋ณ€๊ฒฝ ํ•˜์˜€์œผ๋ฏ€๋กœ CUBIC์˜ ์ €์ž๋“ค์€ ์Šฌ๋กœ ์Šคํƒ€ํŠธ๋ฅผ ๊ฐœ์„ ํ•˜๊ธฐ ์œ„ํ•ด ๋ณ„๋„์˜ ์ž‘์—…์„ ํ•˜์˜€์Šต๋‹ˆ๋‹ค. ๊ทธ ๊ฒฐ๊ณผ๊ฐ€ HyStart ์ž…๋‹ˆ๋‹ค. > ![](https://www.notion.so/image/https%3A%2F%2Fs3-us-west-2.amazonaws.com%2Fsecure.notion-static.com%2F793538a9-4369-483b-be9b-fdac46b5799b%2FUntitled.png?table=block&id=09fb6ab2-f1aa-40e6-8f43-2367189f1e1c&cache=v2) > ![](https://www.notion.so/image/https%3A%2F%2Fs3-us-west-2.amazonaws.com%2Fsecure.notion-static.com%2F733f923e-6b1c-4c8c-a763-c324de54e7ee%2FUntitled.png?table=block&id=4c0cc5b2-3b2c-46b1-bf90-889d7ce847c8&cache=v2) - RTT ์ง€์—ฐ ์ƒ˜ํ”Œ๋ง: RTT์˜ ์ฆ๊ฐ€๊ฐ€ ์Šฌ๋กœ ์Šคํƒ€ํŠธ ๊ตฌ๊ฐ„์—์„œ ์ผ์ • ์ˆ˜์น˜๋ฅผ ์ดˆ๊ณผํ•˜๋ฉด ์Šฌ๋กœ ์Šคํƒ€ํŠธ์—์„œ ์ผ์ฐ ๋ฒ—์–ด๋‚˜ ํ˜ผ์žก ํšŒํ”ผ ๋ชจ๋“œ๋กœ ๋ณ€๊ฒฝ. - ACK ํ–‰๋ ฌ: ACK์˜ ๋„์ฐฉ ์‹œ๊ฐ„ ๊ฐ„๊ฒฉ์ด ์ ์  ๊ธธ์–ด์ง€๊ณ  ์ผ์ • ์ˆ˜์น˜๋ฅผ ์ดˆ๊ณผํ•˜๋ฉด ์Šฌ๋กœ ์Šคํƒ€ํŠธ์—์„œ ์ผ์ฐ ๋ฒ—์–ด๋‚˜ ํ˜ผ์žก ํšŒํ”ผ ๋ชจ๋“œ๋กœ ๋ณ€๊ฒฝ. > [quiche์˜ CUBIC์™€ HyStart++ ์ง€์›](https://blog.cloudflare.com/ko/cubic-and-hystart-support-in-quiche-ko/) > [draft-balasubramanian-tcpm-hystartplusplus-03 - HyStart++: Modified Slow Start for TCP](https://tools.ietf.org/html/draft-balasubramanian-tcpm-hystartplusplus-03)
d157cf120edd42c694bebd2e6a55192b
qlog
quiche visualization tools
Jun 21, 2020
Alan Jo
Alan Jo
Jun 1, 2021
4d685edc148f42fcbf32cd83f52dad5b
qvis
quiche visualization tools
Jun 21, 2020
Alan Jo
Alan Jo
Jun 1, 2021
101e446abe484e83ae4b2e54aff6c1ec
RFC 8999
QUIC Standards
Jun 1, 2021
Alan Jo
Alan Jo
Oct 12, 2021
## Version-Independent Properties of QUIC ํ†ต์นญ Invariants. ๋ฒ„์ „์— ๊ด€๊ณ„ ์—†์ด ๊ณตํ†ต์ ์ธ ์‚ฌํ•ญ์— ๋Œ€ํ•œ ๊ฒƒ
43ec7ca9d474486f99b582b4a38f0b55
RFC 9000
QUIC Standards
Jun 1, 2021
Alan Jo
Alan Jo
Oct 12, 2021
## QUIC: A UDP-Based Multiplexed and Secure Transport ํ†ต์นญ Transport ์ œ์ผ ์ค‘์‹ฌ์ด ๋˜๋Š” ๋‚ด์šฉ์œผ๋กœ ํŒจํ‚ท ํฌ๋งท, ์ƒํƒœ ๋จธ์‹ , ๊ธฐ๋ณธ์ ์ธ ๋™์ž‘ QUIC์— ๋Œ€ํ•ด ์•Œ๊ณ  ์‹ถ๋‹ค๋ฉด ์—ฌ๊ธฐ๋ถ€ํ„ฐ
03e8e7a0e9e047b8a4a383f9705d9d41
RFC 9001
QUIC Standards
Jun 1, 2021
Alan Jo
Alan Jo
Oct 12, 2021
## Using TLS to Secure QUIC ํ†ต์นญ QUIC-TLS QUIC์€ ๊ธฐ๋ณธ์ ์œผ๋กœ ์•”ํ˜ธํ™”๋ฅผ ํ•ด์•ผ ํ•˜๋Š”๋ฐ TLS 1.3 ๊ธฐ๋ฐ˜์œผ๋กœ ์•ฝ๊ฐ„์˜ ํ™•์žฅ์„ ๋”ํ•˜๊ณ  TLS 1.3์— ๋Œ€ํ•ด์„œ ๊ธฐ๋ณธ์ ์œผ๋กœ ์ดํ•ด๊ฐ€ ์žˆ์–ด์•ผ
ec039027823340be8eecdaa0f0ef982a
RFC 9002
QUIC Standards
Jun 1, 2021
Alan Jo
Alan Jo
Oct 12, 2021
## QUIC Loss Detection and Congestion Control ํ†ต์นญ Recovery. Transport์— ์ถ”๊ฐ€ํ•˜์—ฌ ์†์‹ค ๋ณต๊ตฌ ๋ฐ ํ˜ผ์žก ์ œ์–ด ์•Œ๊ณ ๋ฆฌ์ฆ˜ ๋‹ค๋ฃธ > [quiche์˜ CUBIC์™€ HyStart++ ์ง€์›](https://blog.cloudflare.com/ko-kr/cubic-and-hystart-support-in-quiche-ko-kr/)
79bec2103ba249099f5d4506d7989655
QPACK
QUIC Usages
Jul 25, 2021
Alan Jo
Alan Jo
Aug 28, 2023
[HPACK](https://texonom.com/hpack-ca414a54b1c04d7ebaa55f5152cf1f12)
### request and response headers are compressed by QPACK RFC9204
1f26c953abde4d07a4b0b012c3c4eb21
QUIC Connection ID
QUIC Usages
Aug 17, 2021
Alan Jo
Alan Jo
Oct 12, 2021
์ปค๋„ฅ์…˜ ID๋ฅผ ๊ธฐ์–ตํ•ด์„œ ํ•ธ๋“œ์…ฐ์ดํฌ๋ฅผ ์ฒ˜์Œ๋ถ€ํ„ฐ ์ง„ํ–‰ํ•˜์ง€ ์•Š์„ ์ˆ˜ ์žˆ๋„๋ก WIFI LTE ์‚ฌ์ด ๊ตํ™˜ ์ž์—ฐ์Šค๋Ÿฝ๊ฒŒ ํ•ธ๋“œ์…ฐ์ดํฌ ์ฒจ๋ถ€ํ„ฐ ์•ˆํ•ด๋„ ๋˜๊ฒŒ > [HTTP3, ์‚ฌ์‹ค ์ง„์งœ๋กœ ๋ฐ”๋€๊ฑด TCP ์˜€๋‹ค.](https://www.hamadevelop.me/http3/)
bab44b1036744a1a8ce9a2a31bebadf1
QUIC FEC
QUIC Usages
Oct 12, 2021
Alan Jo
Alan Jo
Oct 12, 2021
## Forward error Correction ๋ฐ์ดํ„ฐ ์ „์†ก์—์„œ ์˜ค๋ฅ˜ ์ œ์–ด๋ฅผ ํ•˜๋Š” ๋ฐฉ๋ฒ• ์†ก์‹ ๊ธฐ๋Š” ์ค‘๋ณต ๋ฐ์ดํ„ฐ๋ฅผ ์ „์†กํ•˜๊ณ  ๋ฐ›๋Š” ์ชฝ์—์„œ๋Š” ์‹๋ณ„ํ•  ์ˆ˜ ์žˆ๋Š” ์˜ค๋ฅ˜๊ฐ€ ์—†๋Š” ๋ฐ์ดํ„ฐ์˜ ๋ถ€๋ถ„๋งŒ์„ ์ธ์‹ > [QUIC v2](https://http3-explained.haxx.se/ko/quic-v2)
7250296886ec4e7395f6aa37565cac48