http/2, quels impacts pour mon site wordpress ?
TRANSCRIPT
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HTTP/2
Quels impacts pour mon site WordPress
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C’est quoi HTTP déjà ??!
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Sir Tim Berner Lee au CERN, 1994
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Hypertext Transfer Protocol
GET
HTMLKikoo!
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ARPANET
World Wide
Web
HTTP 0.9
HTTP/1.1
HTTP /2
1969 1991 1995 1999 2015
SPDY
20101983
TCP IP
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● Requêtes plus légères ● Multiplexing et connexion persistante● Push des données en amont
Pourquoi HTTP/2 ? Aller toujours plus vite
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Hypertext Transfer Protocol
Credit : http://blog.scottlogic.com/2014/11/07/http-2-a-quick-look.html
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Et ça marche ?
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V.11
Tous les navigateurs modernes sont compatibles.
V.42 V.45 V.34 V.9
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Pas trop mal !
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Mais seulement 6% des sites l’utilisent. Profitez en !
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Passez en SSL
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Optimisations Sans HTTP/2 Avec HTTP/2
Spriting
Concatenation
Sharding
CDN ???
Arrêtez les optimisations classiques.
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Avec leur CDN >> schéma waterfall classique, 2.3s
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Sans le CDN >> 1.8s, it’s 22% faster
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● Passez en SSL ● Arrêtez les optimisations redondantes● Migrez vers un hébergeur compatible
Pour résumer, avant le grand saut.
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Ressources
https://deliciousbrains.com/http2-https-lets-encrypt-wordpress/http://wptavern.com/how-to-fix-images-not-loading-in-wordpress-4-4-while-using-sslhttps://wordpress.org/plugins/http2-server-push/https://www.nginx.com/blog/7-tips-for-faster-http2-performance/http://www.24joursdeweb.fr/2015/en-avant-vers-http2/http://10up.com/blog/2016/wordpress-performance-cdn-http2/https://ahmadawais.com/wordpress-and-http2-what-developers-need-to-know/https://thethemefoundry.com/blog/why-we-dont-use-a-cdn-spdy-ssl/http://www.sitepoint.com/http2-the-pros-the-cons-and-what-you-need-to-know/
MERCI
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