{"id":937,"date":"2007-05-21T00:00:00","date_gmt":"2007-05-20T22:00:00","guid":{"rendered":"https:\/\/wwwneu.strehle.de\/tim\/weblog\/archives\/2007\/05\/21\/875\/"},"modified":"2007-05-21T00:00:00","modified_gmt":"2007-05-20T22:00:00","slug":"875","status":"publish","type":"post","link":"https:\/\/www.strehle.de\/tim\/weblog\/archives\/2007\/05\/21\/875\/","title":{"rendered":"ETags are not a panacea"},"content":{"rendered":"<p>Patrick Mueller &#8211; <a href=\"http:\/\/www-03.ibm.com\/developerworks\/blogs\/page\/pmuellr?entry=etags_are_not_a_panacea\" title=\"IBM developerWorks : Blogs : Patrick Mueller\">ETags are not a panacea<\/a>:<\/p>\n<p>&#8222;ETags and Last-Modified processing is something you ought to do, if you can afford it, because it does allow for some optimization in your client \/ server transactions. To be clear, the optimization is that the server doesn&#8217;t have to send the content it would have sent to the client, as the client has indicated it already has that &#8218;version&#8216; of it cached. There is still a round-trip to the server involved. If you&#8217;re looking for an absolute killer optimization though, you should be looking at Expires and Cache-Control headers.<\/p>\n<p>[&#8230;] Expires and friends are killer, because they allow the ultimate in client \/ server transaction optimization; the transaction is optimized away completely.&#8220;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Patrick Mueller &#8211; ETags are not a panacea: &#8222;ETags and Last-Modified processing is something you ought to do, if you can afford it, because it does allow for some optimization in your client \/ server transactions. To be clear, the optimization is that the server doesn&#8217;t have to send the content it would have sent [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_share_on_mastodon":"0"},"categories":[1],"tags":[],"class_list":["post-937","post","type-post","status-publish","format-standard","hentry","category-weblog"],"share_on_mastodon":{"url":"","error":""},"_links":{"self":[{"href":"https:\/\/www.strehle.de\/tim\/wp-json\/wp\/v2\/posts\/937","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.strehle.de\/tim\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.strehle.de\/tim\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.strehle.de\/tim\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.strehle.de\/tim\/wp-json\/wp\/v2\/comments?post=937"}],"version-history":[{"count":0,"href":"https:\/\/www.strehle.de\/tim\/wp-json\/wp\/v2\/posts\/937\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.strehle.de\/tim\/wp-json\/wp\/v2\/media?parent=937"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.strehle.de\/tim\/wp-json\/wp\/v2\/categories?post=937"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.strehle.de\/tim\/wp-json\/wp\/v2\/tags?post=937"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}