{"id":121,"date":"2018-06-29T15:10:15","date_gmt":"2018-06-29T13:10:15","guid":{"rendered":"https:\/\/jdm.pl\/blog\/?p=121"},"modified":"2019-11-18T19:25:20","modified_gmt":"2019-11-18T18:25:20","slug":"http-2-czy-jest-ci-potrzebny","status":"publish","type":"post","link":"https:\/\/jdm.pl\/blog\/http-2-czy-jest-ci-potrzebny\/","title":{"rendered":"HTTP\/2 &#8211; czy jest Ci potrzebny?"},"content":{"rendered":"<p>Wielokrotnie podkre\u015blamy, \u017ce HTTP\/2 jest u nas standardem, gdy\u017c stawiamy <strong>na pr\u0119dko\u015b\u0107 \u0142adowania<\/strong> si\u0119 stron naszych Klient\u00f3w. Niestety wielu osobom termin HTTP\/2 nic nie m\u00f3wi. Ale jest to tylko kwestia czasu, gdy\u017c najnowsza wersja wydanego w\u00a01999\u00a0roku protoko\u0142u HTTP\/1.1, zaczyna by\u0107 coraz bardziej po\u017c\u0105dan\u0105 cech\u0105 dobrego hostingu. Wp\u0142ywa na pr\u0119dko\u015b\u0107 \u0142adowania stron, a przez to tak\u017ce na ich pozycj\u0119 w Google.<\/p>\n<h2 style=\"text-align: center;\">Czym jest HTTP\/2?<\/h2>\n<p>W bardzo du\u017cym uproszeniu to nowa wersja protoko\u0142u HTTP\/1.1, kt\u00f3ry, jak powszechnie wiadomo, odpowiada za\u00a0komunikacj\u0119 serwera z\u00a0przegl\u0105dark\u0105. Kiedy ca\u0142a bran\u017ca technologiczna sz\u0142a do przodu, a strony www wymagaj\u0105 coraz szybszych rozwi\u0105za\u0144, wersja HTTP sta\u0142a nieco w miejscu. Pojawi\u0142y si\u0119 metody wspierania pr\u0119dko\u015bci przez zewn\u0119trzne narz\u0119dzia, ale nie by\u0142y to bezpo\u015brednie rozwi\u0105zania.<\/p>\n<h2 style=\"text-align: center;\">Co w HTTP\/2 jest takiego rewolucyjnego?<\/h2>\n<ul>\n<li>Po pierwsze, przegl\u0105darka \u0142\u0105cz\u0105c si\u0119 ze stron\u0105 nawi\u0105zuje <strong>tylko jedno trwa\u0142e po\u0142\u0105czenie<\/strong>. Staje si\u0119 ono aktywne, a\u017c po wyj\u015bcie ze strony. Nie wywo\u0142uje to efektu wi\u0119kszego obci\u0105\u017cenia, kt\u00f3re powodowane by\u0142o wysy\u0142anie co chwil\u0119 zapyta\u0144 o kolejne zasoby.<\/li>\n<li>Po drugie, mo\u017cliwe sta\u0142o si\u0119 <strong>wykonywanie wielu zapyta\u0144 do serwera na raz<\/strong>. Jednoczesne pobranie r\u00f3\u017cnych typ\u00f3w plik\u00f3w np. CSS i JS nie jest problemem. HTTP\/1.1 skazywa\u0142 nas na kolejkowanie, co te\u017c mia\u0142o odbicie w pr\u0119dko\u015bci \u0142adowania strony.<\/li>\n<li>Po trzecie, zamiast tre\u015bci\u00a0w formie tekstowej, mamy<strong> polecenia binarne<\/strong>, co dodatnio wp\u0142ywa na serwer i ogranicza liczb\u0119 potencjalnych b\u0142\u0119d\u00f3w.<\/li>\n<li>Ponadto s\u0142owo klucz czyli <strong>prioretyzacja<\/strong>. To dzi\u0119ki zastosowaniu HTTP\/2 nasz serwer\u00a0zyskuje zdolno\u015b\u0107 nadawania wa\u017cnym zasobom wy\u017cszych priorytet\u00f3w, co tak\u017ce poprawia pr\u0119dko\u015b\u0107 strony.<\/li>\n<li>HTTP\/2 jest nierozerwalnie zwi\u0105zany z <strong>SSL<\/strong>, o kt\u00f3rym pisali\u015bmy <a href=\"https:\/\/jdm.pl\/blog\/czy-masz-juz-ssl\/\">wcze\u015bniej<\/a>.<\/li>\n<\/ul>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-126 size-full\" src=\"https:\/\/jdm.pl\/blog\/wp-content\/uploads\/2018\/06\/http2.png\" alt=\"\" width=\"945\" height=\"559\" srcset=\"https:\/\/jdm.pl\/blog\/wp-content\/uploads\/2018\/06\/http2.png 945w, https:\/\/jdm.pl\/blog\/wp-content\/uploads\/2018\/06\/http2-101x60.png 101w, https:\/\/jdm.pl\/blog\/wp-content\/uploads\/2018\/06\/http2-300x177.png 300w, https:\/\/jdm.pl\/blog\/wp-content\/uploads\/2018\/06\/http2-768x454.png 768w\" sizes=\"auto, (max-width: 945px) 100vw, 945px\" \/><\/p>\n<pre style=\"text-align: center;\">\u017ar\u00f3d\u0142o: <a href=\"https:\/\/blog.cloudflare.com\/introducing-http2\/\">blog.cloudflare.com<\/a><\/pre>\n<h2 style=\"text-align: center;\">Jak sprawdzi\u0107 czy m\u00f3j hostingodawca oferuje HTTP\/2?<\/h2>\n<p>Mo\u017cna to podejrze\u0107 prostym narz\u0119dziem. Na stronie <a href=\"https:\/\/tools.keycdn.com\/http2-test\">keycdn<\/a> \u00a0znajdziemy <strong>mo\u017cliwo\u015b\u0107 sprawdzenia on-line<\/strong>, czy nasza strona obs\u0142ugiwana jest w tym standardzie. A je\u017celi nie jest, to co? Zostaje nam gn\u0119bi\u0107 BOK lub zmieni\u0107 hostingodawc\u0119. \ud83d\ude09<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Wielokrotnie podkre\u015blamy, \u017ce HTTP\/2 jest u nas standardem, gdy\u017c stawiamy na pr\u0119dko\u015b\u0107 \u0142adowania si\u0119 stron naszych Klient\u00f3w. Niestety wielu osobom termin HTTP\/2 nic nie m\u00f3wi. Ale jest to tylko kwestia czasu, gdy\u017c najnowsza wersja wydanego w\u00a01999\u00a0roku protoko\u0142u HTTP\/1.1, zaczyna by\u0107 coraz bardziej po\u017c\u0105dan\u0105 cech\u0105 dobrego hostingu. Wp\u0142ywa na pr\u0119dko\u015b\u0107 \u0142adowania stron, a przez to tak\u017ce [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":129,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_uag_custom_page_level_css":"","_exactmetrics_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[4,3],"tags":[16],"class_list":["post-121","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-hosting","category-wordpress","tag-bezpieczenstwo"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>HTTP\/2 - czy jest Ci potrzebny? - Blog jdm.pl<\/title>\n<meta name=\"description\" content=\"Czym jest HHTP\/2 i czy warto go stosowa\u0107? 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