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HTTP/2 302 server: nginx date: Thu, 17 Jul 2025 14:56:00 GMT content-type: text/plain; charset=utf-8 content-length: 0 x-archive-redirect-reason: found capture at 20100105200128 location: https://web.archive.org/web/20100105200128/https://answers.oreilly.com/tag/sniffing server-timing: captures_list;dur=0.523092, exclusion.robots;dur=0.021096, exclusion.robots.policy;dur=0.009652, esindex;dur=0.011588, cdx.remote;dur=10.155341, LoadShardBlock;dur=357.832175, PetaboxLoader3.datanode;dur=63.755855, PetaboxLoader3.resolve;dur=264.499933 x-app-server: wwwb-app217 x-ts: 302 x-tr: 394 server-timing: TR;dur=0,Tw;dur=0,Tc;dur=0 set-cookie: SERVER=wwwb-app217; path=/ x-location: All x-rl: 0 x-na: 0 x-page-cache: MISS server-timing: MISS x-nid: DigitalOcean referrer-policy: no-referrer-when-downgrade permissions-policy: interest-cohort=() HTTP/2 200 server: nginx date: Thu, 17 Jul 2025 14:56:02 GMT content-type: text/html;charset=UTF-8 x-archive-orig-date: Tue, 05 Jan 2010 20:01:32 GMT x-archive-orig-server: Apache/2.2.11 (Unix) mod_ssl/2.2.11 OpenSSL/0.9.8e-fips-rhel5 mod_auth_passthrough/2.1 mod_bwlimited/1.4 FrontPage/5.0.2.2635 PHP/5.2.8 x-archive-orig-x-powered-by: PHP/5.2.8 x-archive-orig-set-cookie: answers_session_id=85243ce3f59543686e4f74896d959076; path=/; domain=.oreilly.com; httponly x-archive-orig-set-cookie: answers_session_id=85243ce3f59543686e4f74896d959076; path=/; domain=.oreilly.com; httponly x-archive-orig-cache-control: ,no-cachemust-revalidate, max-age=0 x-archive-orig-expires: 0 x-archive-orig-pragma: no-cache x-archive-orig-connection: close x-archive-guessed-content-type: text/html x-archive-guessed-charset: utf-8 memento-datetime: Tue, 05 Jan 2010 20:01:28 GMT link: ; rel="original", ; rel="timemap"; type="application/link-format", ; rel="timegate", ; rel="first memento"; datetime="Sat, 07 Nov 2009 21:56:58 GMT", ; rel="prev memento"; datetime="Sat, 07 Nov 2009 21:56:58 GMT", ; rel="memento"; datetime="Tue, 05 Jan 2010 20:01:28 GMT", ; rel="next memento"; datetime="Thu, 27 May 2010 05:24:51 GMT", ; rel="last memento"; datetime="Thu, 16 May 2013 04:28:20 GMT" content-security-policy: default-src 'self' 'unsafe-eval' 'unsafe-inline' data: blob: archive.org web.archive.org web-static.archive.org wayback-api.archive.org athena.archive.org analytics.archive.org pragma.archivelab.org wwwb-events.archive.org x-archive-src: TLA-20100105192233-00229-ia360903-c/TLA-20100105194323-00399-ia360906.us.archive.org.warc.gz server-timing: captures_list;dur=0.964811, exclusion.robots;dur=0.019409, exclusion.robots.policy;dur=0.008516, esindex;dur=0.011107, cdx.remote;dur=33.990463, LoadShardBlock;dur=719.748251, PetaboxLoader3.datanode;dur=520.199003, PetaboxLoader3.resolve;dur=726.515057, load_resource;dur=666.268729 x-app-server: wwwb-app217 x-ts: 200 x-tr: 1509 server-timing: TR;dur=0,Tw;dur=0,Tc;dur=0 x-location: All x-rl: 0 x-na: 0 x-page-cache: MISS server-timing: MISS x-nid: DigitalOcean referrer-policy: no-referrer-when-downgrade permissions-policy: interest-cohort=() content-encoding: gzip sniffing Questions and Answers - O'Reilly Answers

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Topics: sniffing

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How to Use Server-Side Sniffing to Speed Up Web Pages

By simonstl : 29 October 2009 - 04:08 PM
Browser sniffing is one area where Javascript is in widespread use. To minimize the Javascript overhead that your users must download, you can substitute server-side or PHP and JSP...
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Topics: sniffing

How to Use Server-Side Sniffing to Speed Up Web Pages