Upgrade to Pro — share decks privately, control downloads, hide ads and more …

HTTP Caching Basics

Rafaël Blais Masson
December 18, 2012
Programming
9
370

HTTP Caching Basics

Talk given at OpenCode Québec on December 18th, 2012. Supporting code is here: http://github.com/rafBM/opencode-httpcaching

Rafaël Blais Masson

December 18, 2012
Tweet

More Decks by Rafaël Blais Masson

See All by Rafaël Blais Masson
DOM… avec pas de jQuery!?
rafbm
2
170

Other Decks in Programming

See All in Programming
Dev ContainersとGitHub Codespacesの素敵な関係
ymd65536
1
130
破壊せよ！データ破壊駆動で考えるドメインモデリング / data-destroy-driven
minodriven
16
4.1k
OpenTelemetryでRailsのパフォーマンス分析を始めてみよう（KoR2024）
ymtdzzz
4
1.6k
CPython 인터프리터 구조 파헤치기 - PyCon Korea 24
kennethanceyer
0
250
CSC305 Lecture 13
javiergs
PRO
0
130
Why Spring Matters to Jakarta EE - and Vice Versa
ivargrimstad
0
1k
2万ページのSSG運用における工夫と注意点 / Vue Fes Japan 2024
chinen
3
1.4k
AWS IaCの注目アップデート 2024年10月版
konokenj
3
3.1k
Googleのテストサイズを活用したテスト環境の構築
toms74209200
0
280
とにかくAWS GameDay！AWSは世界の共通言語！ / Anyway, AWS GameDay! AWS is the world's lingua franca!
seike460
PRO
1
570
GCCのプラグインを作る / I Made a GCC Plugin
shouth
1
150
Realtime API 入門
riofujimon
0
120

Featured

See All Featured
Principles of Awesome APIs and How to Build Them.
keavy
126
17k
JavaScript: Past, Present, and Future - NDC Porto 2020
reverentgeek
47
5k
Building Adaptive Systems
keathley
38
2.2k
4 Signs Your Business is Dying
shpigford
180
21k
What's new in Ruby 2.0
geeforr
342
31k
Faster Mobile Websites
deanohume
304
30k
ReactJS: Keep Simple. Everything can be a component!
pedronauck
664
120k
Fantastic passwords and where to find them - at NoRuKo
philnash
50
2.8k
Save Time (by Creating Custom Rails Generators)
garrettdimon
PRO
27
800
CoffeeScript is Beautiful & I Never Want to Write Plain JavaScript Again
sstephenson
159
15k
How to Create Impact in a Changing Tech Landscape [PerfNow 2023]
tammyeverts
46
2.1k
10 Git Anti Patterns You Should be Aware of
lemiorhan
654
59k

Transcript

  1. For fun and profit. HTTP Caching

  2. HTT– WAT?

  3. GET /index.html HTTP/1.1 Host: heeeeeeeey.com Accept: text/html HTTP/1.1 200 OK

    Content-Type: text/html Content-Length: 3513 <!DOCTYPE html> <html> <head> ...

  4. GET /index.html HTTP/1.1 Host: heeeeeeeey.com Accept: text/html HTTP/1.1 200 OK

    Content-Type: text/html Content-Length: 3513 <!DOCTYPE html> <html> <head> ...

  5. GET /index.html HTTP/1.1 Host: heeeeeeeey.com Accept: text/html Accept-Encoding: gzip HTTP/1.1

    200 OK Content-Type: text/html Content-Length: 1670 Content-Encoding: gzip ?W?o?6???7???-???^??tK?|h?m?T ID?????7???????9?fS,?h~xs?,??:V?2`v_??0њ?3G?A?x ...

  6. GET /flaberbeezle.twizz HTTP/1.1 Host: heeeeeeeey.com Accept: text/html HTTP/1.1 404 Not

    Found Content-Type: text/html Content-Length: 2475 <!DOCTYPE html> <html> <head> ...

  7. GET /index.html HTTP/1.1 Host: heeeeeeeey.com Accept: text/html HTTP/1.1 301 Moved

    Permanently Location: http://www.heeeeeeeey.com/index.html

  8. CACHING MOTHER*** DO YOU SPEAK IT?

  9. Validation

  10. GET /index.html HTTP/1.1 Host: heeeeeeeey.com Accept: text/html

  11. GET /index.html HTTP/1.1 Host: heeeeeeeey.com Accept: text/html HTTP/1.1 200 OK

    Content-Type: text/html Content-Length: 3513 <!DOCTYPE html> <html> ...

  12. GET /index.html HTTP/1.1 Host: heeeeeeeey.com Accept: text/html

  13. GET /index.html HTTP/1.1 Host: heeeeeeeey.com Accept: text/html HTTP/1.1 200 OK

    Content-Type: text/html Content-Length: 3513 <!DOCTYPE html> <html> ...

  14. GET /index.html HTTP/1.1 Host: heeeeeeeey.com Accept: text/html HTTP/1.1 200 OK

    Content-Type: text/html Content-Length: 3513 Last-Modified: Tue, 18 Dec 2012 12:53:00 GMT <!DOCTYPE html> <html> ...

  15. GET /index.html HTTP/1.1 Host: heeeeeeeey.com Accept: text/html

  16. GET /index.html HTTP/1.1 Host: heeeeeeeey.com Accept: text/html If-Modified-Since: Tue, 18

    Dec 2012 12:53:00 GMT

  17. GET /index.html HTTP/1.1 Host: heeeeeeeey.com Accept: text/html If-Modified-Since: Tue, 18

    Dec 2012 12:53:00 GMT HTTP/1.1 304 Not Modified

  18. GET /index.html HTTP/1.1 Host: heeeeeeeey.com Accept: text/html If-Modified-Since: Tue, 18

    Dec 2012 12:53:00 GMT

  19. GET /index.html HTTP/1.1 Host: heeeeeeeey.com Accept: text/html If-Modified-Since: Tue, 18

    Dec 2012 12:53:00 GMT HTTP/1.1 200 OK Content-Type: text/html Content-Length: 3513 Last-Modified: Tue, 19 Dec 2012 14:25:00 GMT <!DOCTYPE html> <html> ...

  20. GET /index.html HTTP/1.1 Host: heeeeeeeey.com Accept: text/html If-Modified-Since: Tue, 18

    Dec 2012 12:53:00 GMT

  21. GET /index.html HTTP/1.1 Host: heeeeeeeey.com Accept: text/html If-Modified-Since: Tue, 19

    Dec 2012 14:25:00 GMT

  22. GET /index.html HTTP/1.1 Host: heeeeeeeey.com Accept: text/html If-Modified-Since: Tue, 19

    Dec 2012 14:25:00 GMT HTTP/1.1 304 Not Modified

  23. GET /index.html HTTP/1.1 Host: heeeeeeeey.com Accept: text/html

  24. GET /index.html HTTP/1.1 Host: heeeeeeeey.com Accept: text/html HTTP/1.1 200 OK

    Content-Type: text/html Content-Length: 3513 <!DOCTYPE html> <html> ...

  25. GET /index.html HTTP/1.1 Host: heeeeeeeey.com Accept: text/html HTTP/1.1 200 OK

    Content-Type: text/html Content-Length: 3513 ETag: 165d96c6baae07f807115f00ca878431 <!DOCTYPE html> <html> ...

  26. GET /index.html HTTP/1.1 Host: heeeeeeeey.com Accept: text/html

  27. GET /index.html HTTP/1.1 Host: heeeeeeeey.com Accept: text/html If-None-Match: 165d96c6baae07f807115f00ca878431

  28. GET /index.html HTTP/1.1 Host: heeeeeeeey.com Accept: text/html If-None-Match: 165d96c6baae07f807115f00ca878431 HTTP/1.1

    304 Not Modified

  29. GET /index.html HTTP/1.1 Host: heeeeeeeey.com Accept: text/html If-None-Match: 165d96c6baae07f807115f00ca878431

  30. GET /index.html HTTP/1.1 Host: heeeeeeeey.com Accept: text/html If-None-Match: 165d96c6baae07f807115f00ca878431 HTTP/1.1

    200 OK Content-Type: text/html Content-Length: 3513 ETag: e075d8ff00c11543a876a96c8a07116b <!DOCTYPE html> <html> ...

  31. GET /index.html HTTP/1.1 Host: heeeeeeeey.com Accept: text/html If-None-Match: 165d96c6baae07f807115f00ca878431

  32. GET /index.html HTTP/1.1 Host: heeeeeeeey.com Accept: text/html If-None-Match: e075d8ff00c11543a876a96c8a07116b

  33. GET /index.html HTTP/1.1 Host: heeeeeeeey.com Accept: text/html If-None-Match: e075d8ff00c11543a876a96c8a07116b HTTP/1.1

    304 Not Modified

  34. Expiration

  35. GET /index.html HTTP/1.1 Host: heeeeeeeey.com Accept: text/html

  36. GET /index.html HTTP/1.1 Host: heeeeeeeey.com Accept: text/html HTTP/1.1 200 OK

    Content-Type: text/html Content-Length: 3513 <!DOCTYPE html> <html> ...

  37. GET /index.html HTTP/1.1 Host: heeeeeeeey.com Accept: text/html HTTP/1.1 200 OK

    Content-Type: text/html Content-Length: 3513 Cache-Control: max-age=3600 <!DOCTYPE html> <html> ...

  38. GET /index.html HTTP/1.1 Host: heeeeeeeey.com Accept: text/html

  39. None

  40. GET /index.html HTTP/1.1 Host: heeeeeeeey.com Accept: text/html

  41. GET /index.html HTTP/1.1 Host: heeeeeeeey.com Accept: text/html HTTP/1.1 200 OK

    Content-Type: text/html Content-Length: 3513 Cache-Control: max-age=3600 <!DOCTYPE html> <html> ...
  42. None

  43. heliom.ca rafBM