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Steve Souders
webdevelopment 23,862 followers
Link rel=prerender is great but how many pkgs check visibilityState? GA does. What about Omniture, Boomerang, DoubleClick, etc? @igrigorik
At @Neustar for @SFWebPerf listening to @igrigorik talk about Resource Hints bit.ly/reshints
Google Search page is 11 requests, 500KB when logged out. Logged in is 19 requests. Is this the new standard for "lightweight"?
First day in months that I'm below 2 on pain scale: knee, shoulder & psoas. Knocking on wood.
grunt plugin for compressing files using Zopfli: bit.ly/1oZop6y - ~5% compression improvement over zlib.
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Can #Apache return a Timing-Allow-Origin header for 304s? Ow I can't get Resource Timing details for cross-domain. cc @TheASF
Chrome for iOS (M36+) now advertises "image/webp" in Accept header - woot. WebP support on iOS since M29: bit.ly/1BeONOx.
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SF EdgeConf (edgeconf.com) Sept 20ᵀᴴ is shaping up to be a powerful event. Schedule: edgeconf.com/2014-sf/schedu… Register for a seat!
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Thanks to @blakecrosby for pointing out @igrigorik's amazing book chapter laying out how the hell HTTP/2 works: chimera.labs.oreilly.com/books/12300000…
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Come hear @igrigorik talk about preconnect, preload & prerender. @SFWebPerf Aug 19 7pm at @Neustar: meetup.com/SF-Web-Perform…
good article (and discussion) on delivering "critical CSS" for progressive page rendering: bit.ly/1oXUV8r
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Registration for WebPerfDays #Amsterdam is now open! Get your ticket at bit.ly/1zZRdiw
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Holy crap balls @fastly is awesome. Just goofing around and already cut response time in half.
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Mr @lukew's "UX for Mobile" youtube playlist is gold: youtube.com/playlist?list=… Optimizing for input, varied screen size, navigation… A+
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Our CFP is open. Plz submit your ideas! bit.ly/1ql5LEg
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With speakers from Google, Adobe, Facebook and more, FT Labs' @edgeconf takes place on September 20. Sign up: on.ft.com/1uqAz8K
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Getting excited about @mdaoudi presenting at Velocity NY next month! ow.ly/A2lAP @velocityconf #webperf #devops
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Given the speakers and their topics... if you follow me for anything other than beer & meat, you should be at Surge. surge.omniti.com/2014
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given the news of HTTPS ranking boost in search, tip of the day... HPBN chapter on TLS performance: bit.ly/1sm6VA0 - free read!
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On my way to keynote at #distill14. Bringing swag for people who know Winkler movies.
Here we go... If you’re in London on August 26 and you like web performance (who doesn’t?!) join us: meetup.com/London-Web-Per…
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Going to @velocityconf NY? Sign up for @WebPerfDays NY Sep 18. (I'll be there.) Thx to @Meetup for hosting! webperfdays.org/events/2014-ne…
@WebPerfDays NY now has a space, thank you, @Meetup for hosting us on September 18! Get your ticket now! webperfdays.org/events/2014-ne…
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landed lots of Resource Hints updates (preconnect, preload, prerender hints): bit.ly/1qVKrJZ - have feedback? let me know!
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I don't use @facebook cuz yesterday's posts in my timeline get bumped to the top AGAIN today when someone comments. Is there a fix?
I like this @mozilla article on specifics for using mozjpeg for image optimization: hacks.mozilla.org/2014/08/using-…
I just signed up for @w3c TPAC Oct 27-31 in Santa Clara in order to attend #WebPerf Working Group mtg: w3.org/2014/11/TPAC/
.@pingdom's talents go beyond technology. Video of their @velocityconf (& sightseeing) experience: youtube.com/watch?v=RLDni2…
nice tool to visualize how your HTML is being delivered (in chunks): bit.ly/1srvpda - flush your <head> early!
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big wishlist item: HAR Diff Tool. Just found out about one from @TeamRigor. labs.rigor.com/har-diff/26681…
Great RUM & synthetic insights via @Etsy's Q2 Site Performance Report by @jonathanklein: codeascraft.com/2014/08/01/q2-…
Blast from the past: Discovered ua-parser (forked from @browserscope) is being used at #Google and by #Detector: dmolsen.com/2012/02/21/res…
Love seeing NavTiming in Safari! Heads up we aren’t seeing back-end data yet according to mPulse. #webperf pic.twitter.com/HBEHpEbkjI
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warning: Nav Timing in #Safari isn't complete. Some values aren't set.
Hey, San Francisco! I'm going to be at Edge Conf on the image formats panel with @yoavweiss, @guypod & @igrigorik: edgeconf.com/2014-sf/schedu…
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rebeccapurple has landed in Chrome: src.chromium.org/viewvc/blink?v…, WebKit & Firefox. Available in Canary (& Opera next) soon pic.twitter.com/L0XGibT0kb
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Forage - new startup from @joshfraser for ordering ingredients to make dinner in 20 minutes: onlineaspect.com/2014/07/31/int…
In typical @filamentgroup fashion, a great article from @scottjehl: "How we make RWD sites load fast as heck" filamentgroup.com/lab/performanc…
Saw @arcadefire at Shoreline last night. Tremendous sensory journey. And they covered #CCR!
New on HTML5 Doctor: The Web Manifest specification by @marcosc and me html5doctor.com/web-manifest-s… NB: draft spec, subject to change.
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We're making video streaming even better with @Brightcove’s Zencoder service on @googlecloud bit.ly/UBBhDA
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If you're in the San Diego area on 08/06, join the Web Performance Meetup for an opportunity to hear about “Frontend…goo.gl/zM3E2D
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One of the cool things about @fastly: how we cache dynamic content: fastly.com/blog/caching-d…
post: "Velocity highlights (video bonus!)" Some of my favorite sessions from @velocityconf & some new videos: stevesouders.com/blog/2014/07/2…
Now that #Safari 8 (beta) supports #NavTiming it automatically shows up in #GoogleAnalytics. pic.twitter.com/1B0ZVqMn74