June 2008
Beginner to intermediate
160 pages
4h 48m
Polish
Content preview from Wydajne witryny internetowe. Przyspieszanie dzia?ania serwisów WWWBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Rozdział 15. Reguła 13. Konfiguracja nagłówka ETag
Zmniejszenie liczby żądań HTTP wymaganych do prawidłowego wygenerowania strony jest najlepszym sposobem na zwiększenie wydajności jej działania. Ten cel można osiągnąć poprzez maksymalizację liczby buforowanych w przeglądarce internetowej elementów strony, ale nagłówek ETag uniemożliwia zastosowanie buforowania, gdy witryna znajduje się na więcej niż tylko jednym serwerze WWW. W rozdziale nastąpi omówienie nagłówka ETag oraz wyjaśnienie, dlaczego jego domyślna implementacja spowalnia działanie stron internetowych.
Czym jest ETag?
Entity tag (ETag) jest mechanizmem używanym przez serwery WWW i przeglądarki internetowe do weryfikacji buforowanych elementów strony. Przed przejściem do szczegółowego ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.