web performance optimierung - walter ebert · mozilla 2,2 sekunden schneller 15,4% mehr downloads...
TRANSCRIPT
![Page 1: Web Performance Optimierung - Walter Ebert · Mozilla 2,2 Sekunden schneller 15,4% mehr Downloads E2%80%93-part-ii](https://reader034.vdocuments.pub/reader034/viewer/2022050423/5f92116af23c6736873ef29f/html5/thumbnails/1.jpg)
Web Performance Optimierung
Walter Ebert
![Page 3: Web Performance Optimierung - Walter Ebert · Mozilla 2,2 Sekunden schneller 15,4% mehr Downloads E2%80%93-part-ii](https://reader034.vdocuments.pub/reader034/viewer/2022050423/5f92116af23c6736873ef29f/html5/thumbnails/3.jpg)
http://www.webpagetest.org/result/121212_RW_ED4/
![Page 4: Web Performance Optimierung - Walter Ebert · Mozilla 2,2 Sekunden schneller 15,4% mehr Downloads E2%80%93-part-ii](https://reader034.vdocuments.pub/reader034/viewer/2022050423/5f92116af23c6736873ef29f/html5/thumbnails/4.jpg)
http://www.akamai.com/html/about/press/releases/2010/press_061410.html
57% der Online-Käufer
warten 3 Sekunden oder weniger
bevor sie eine Webseite verlassen
![Page 5: Web Performance Optimierung - Walter Ebert · Mozilla 2,2 Sekunden schneller 15,4% mehr Downloads E2%80%93-part-ii](https://reader034.vdocuments.pub/reader034/viewer/2022050423/5f92116af23c6736873ef29f/html5/thumbnails/5.jpg)
Amazon
100 Millisekunden schneller
1% mehr Umsatz
http://www.strangeloopnetworks.com/resources/infographics/web-performance-and-ecommerce/amazon-100ms-faster-1-revenue-increase/
![Page 6: Web Performance Optimierung - Walter Ebert · Mozilla 2,2 Sekunden schneller 15,4% mehr Downloads E2%80%93-part-ii](https://reader034.vdocuments.pub/reader034/viewer/2022050423/5f92116af23c6736873ef29f/html5/thumbnails/6.jpg)
Mozilla
2,2 Sekunden schneller
15,4% mehr Downloads
https://blog.mozilla.org/metrics/2010/04/05/firefox-page-load-speed-%E2%80%93-part-ii/
![Page 7: Web Performance Optimierung - Walter Ebert · Mozilla 2,2 Sekunden schneller 15,4% mehr Downloads E2%80%93-part-ii](https://reader034.vdocuments.pub/reader034/viewer/2022050423/5f92116af23c6736873ef29f/html5/thumbnails/7.jpg)
http://googlewebmastercentral.blogspot.de/2010/04/using-site-speed-in-web-search-ranking.html
SEO
![Page 8: Web Performance Optimierung - Walter Ebert · Mozilla 2,2 Sekunden schneller 15,4% mehr Downloads E2%80%93-part-ii](https://reader034.vdocuments.pub/reader034/viewer/2022050423/5f92116af23c6736873ef29f/html5/thumbnails/8.jpg)
http://www.nccgroup.com/en/blog/2013/06/will-faster-user-bandwidth-fix-your-site-performance-woes/
DSL (1.5Mbps) > Cable (5Mbps)333% mehr Bandbreite
Performance-Gewinn12%
![Page 9: Web Performance Optimierung - Walter Ebert · Mozilla 2,2 Sekunden schneller 15,4% mehr Downloads E2%80%93-part-ii](https://reader034.vdocuments.pub/reader034/viewer/2022050423/5f92116af23c6736873ef29f/html5/thumbnails/9.jpg)
http://commons.wikimedia.org/wiki/File:MobileBitRate-logScale.svg
![Page 10: Web Performance Optimierung - Walter Ebert · Mozilla 2,2 Sekunden schneller 15,4% mehr Downloads E2%80%93-part-ii](https://reader034.vdocuments.pub/reader034/viewer/2022050423/5f92116af23c6736873ef29f/html5/thumbnails/10.jpg)
http://www.telekom.com/medien/produkte-fuer-privatkunden/184370
![Page 11: Web Performance Optimierung - Walter Ebert · Mozilla 2,2 Sekunden schneller 15,4% mehr Downloads E2%80%93-part-ii](https://reader034.vdocuments.pub/reader034/viewer/2022050423/5f92116af23c6736873ef29f/html5/thumbnails/11.jpg)
http://www.flickr.com/photos/patrik_karlsson/6851386144/
![Page 12: Web Performance Optimierung - Walter Ebert · Mozilla 2,2 Sekunden schneller 15,4% mehr Downloads E2%80%93-part-ii](https://reader034.vdocuments.pub/reader034/viewer/2022050423/5f92116af23c6736873ef29f/html5/thumbnails/12.jpg)
http://www.flickr.com/photos/usnavy/6083504722/
![Page 13: Web Performance Optimierung - Walter Ebert · Mozilla 2,2 Sekunden schneller 15,4% mehr Downloads E2%80%93-part-ii](https://reader034.vdocuments.pub/reader034/viewer/2022050423/5f92116af23c6736873ef29f/html5/thumbnails/13.jpg)
Last-Tests
• Apache Bench• Siege• jMeter• WebLoadUI
![Page 14: Web Performance Optimierung - Walter Ebert · Mozilla 2,2 Sekunden schneller 15,4% mehr Downloads E2%80%93-part-ii](https://reader034.vdocuments.pub/reader034/viewer/2022050423/5f92116af23c6736873ef29f/html5/thumbnails/14.jpg)
Skalierbarkeitvs.
Performance
![Page 15: Web Performance Optimierung - Walter Ebert · Mozilla 2,2 Sekunden schneller 15,4% mehr Downloads E2%80%93-part-ii](https://reader034.vdocuments.pub/reader034/viewer/2022050423/5f92116af23c6736873ef29f/html5/thumbnails/15.jpg)
Content Delivery Network(CDN)
![Page 16: Web Performance Optimierung - Walter Ebert · Mozilla 2,2 Sekunden schneller 15,4% mehr Downloads E2%80%93-part-ii](https://reader034.vdocuments.pub/reader034/viewer/2022050423/5f92116af23c6736873ef29f/html5/thumbnails/16.jpg)
https://dvcs.w3.org/hg/webperf/raw-file/tip/specs/NavigationTiming/Overview.htmlhttp://caniuse.com/nav-timing
W3C Navigation Timing
![Page 22: Web Performance Optimierung - Walter Ebert · Mozilla 2,2 Sekunden schneller 15,4% mehr Downloads E2%80%93-part-ii](https://reader034.vdocuments.pub/reader034/viewer/2022050423/5f92116af23c6736873ef29f/html5/thumbnails/22.jpg)
https://developers.google.com/speed/pagespeed/insights_extensionshttps://developers.google.com/speed/pagespeed/insights
![Page 23: Web Performance Optimierung - Walter Ebert · Mozilla 2,2 Sekunden schneller 15,4% mehr Downloads E2%80%93-part-ii](https://reader034.vdocuments.pub/reader034/viewer/2022050423/5f92116af23c6736873ef29f/html5/thumbnails/23.jpg)
http://mobitest.akamai.com/m/results.cgi?testid=130413_GA_T
![Page 25: Web Performance Optimierung - Walter Ebert · Mozilla 2,2 Sekunden schneller 15,4% mehr Downloads E2%80%93-part-ii](https://reader034.vdocuments.pub/reader034/viewer/2022050423/5f92116af23c6736873ef29f/html5/thumbnails/25.jpg)
http://www.flickr.com/photos/dominicspics/5829559819/
![Page 27: Web Performance Optimierung - Walter Ebert · Mozilla 2,2 Sekunden schneller 15,4% mehr Downloads E2%80%93-part-ii](https://reader034.vdocuments.pub/reader034/viewer/2022050423/5f92116af23c6736873ef29f/html5/thumbnails/27.jpg)
Bilder optimieren
• ImageOptim (Mac)• Trimage (Linux)• kraken.io / smush.it (Web)• Google Pagespeed (Chrome / Firefox)• Kommadozeile:
• jpegtran, jpegoptim, jpegrescan, optipng, pngcrush, advpng, pngquant, gifsicle
![Page 28: Web Performance Optimierung - Walter Ebert · Mozilla 2,2 Sekunden schneller 15,4% mehr Downloads E2%80%93-part-ii](https://reader034.vdocuments.pub/reader034/viewer/2022050423/5f92116af23c6736873ef29f/html5/thumbnails/28.jpg)
Jpegtran
783K -copy all
750K -copy none
742K -copy none -optimize
740K -copy all -optimize -progressive
708K -copy none -optimize -progressive
853K graffiti.jpg
https://bitbucket.org/walterebert/image-conversion-comparison
ImageMagick5.6M graffiti.png774K -quality 85661K -quality 75368K -quality 50288K graffiti.webp95K -resize 600x337
![Page 29: Web Performance Optimierung - Walter Ebert · Mozilla 2,2 Sekunden schneller 15,4% mehr Downloads E2%80%93-part-ii](https://reader034.vdocuments.pub/reader034/viewer/2022050423/5f92116af23c6736873ef29f/html5/thumbnails/29.jpg)
http://adaptive-images.com/ https://github.com/davemcdermid/AdaptiveImages
![Page 32: Web Performance Optimierung - Walter Ebert · Mozilla 2,2 Sekunden schneller 15,4% mehr Downloads E2%80%93-part-ii](https://reader034.vdocuments.pub/reader034/viewer/2022050423/5f92116af23c6736873ef29f/html5/thumbnails/32.jpg)
CSS Sprites.flag { display: inline-block; width: 16px; height: 11px; overflow: hidden; background: transparent url(flags.png) scroll -1px -1px no-repeat;}.europeanunion {background-position: -1px -1px;}.AUD {background-position: -1px -287px;}.BRL {background-position: -1px -40px;}.BGN {background-position: -1px -27px;}.CAD {background-position: -1px -52px;}
![Page 33: Web Performance Optimierung - Walter Ebert · Mozilla 2,2 Sekunden schneller 15,4% mehr Downloads E2%80%93-part-ii](https://reader034.vdocuments.pub/reader034/viewer/2022050423/5f92116af23c6736873ef29f/html5/thumbnails/33.jpg)
DATA URIsKommando$ base64 -w 0 fb.png > fb.png.txt$ php -r "echo base64_encode(file_get_contents('fb.png'));" > fb.png.txt
CSSa.facebook {background-image: url('data:image/png;base64,iVBORw…g==');}
< Internet Explorer 8
HTML<link rel="stylesheet" type="text/css" href="style.css" /><!--[if lt IE 8]><link rel="stylesheet" type="text/css" href="lt-ie-8.css" /><![endif]-->
CSSa.facebook {background-image: url('fb.png');}
http://www.invifire.net/2013/01/17/data-uris-explained/
![Page 36: Web Performance Optimierung - Walter Ebert · Mozilla 2,2 Sekunden schneller 15,4% mehr Downloads E2%80%93-part-ii](https://reader034.vdocuments.pub/reader034/viewer/2022050423/5f92116af23c6736873ef29f/html5/thumbnails/36.jpg)
DATA URIs
<img src='data:image/png;base64,iVBORw…g==' alt=''>
![Page 37: Web Performance Optimierung - Walter Ebert · Mozilla 2,2 Sekunden schneller 15,4% mehr Downloads E2%80%93-part-ii](https://reader034.vdocuments.pub/reader034/viewer/2022050423/5f92116af23c6736873ef29f/html5/thumbnails/37.jpg)
SVG
https://en.wikipedia.org/wiki/File:Firefox-logo.svg
![Page 39: Web Performance Optimierung - Walter Ebert · Mozilla 2,2 Sekunden schneller 15,4% mehr Downloads E2%80%93-part-ii](https://reader034.vdocuments.pub/reader034/viewer/2022050423/5f92116af23c6736873ef29f/html5/thumbnails/39.jpg)
https://github.com/filamentgroup/grunticon http://www.grumpicon.com/
![Page 41: Web Performance Optimierung - Walter Ebert · Mozilla 2,2 Sekunden schneller 15,4% mehr Downloads E2%80%93-part-ii](https://reader034.vdocuments.pub/reader034/viewer/2022050423/5f92116af23c6736873ef29f/html5/thumbnails/41.jpg)
Abmessungen festlegen
<img src="logo.png"
width="182"
height="60"
alt="Logo" />
![Page 42: Web Performance Optimierung - Walter Ebert · Mozilla 2,2 Sekunden schneller 15,4% mehr Downloads E2%80%93-part-ii](https://reader034.vdocuments.pub/reader034/viewer/2022050423/5f92116af23c6736873ef29f/html5/thumbnails/42.jpg)
http://www.flickr.com/photos/soulsystem2010/4502340253/
![Page 43: Web Performance Optimierung - Walter Ebert · Mozilla 2,2 Sekunden schneller 15,4% mehr Downloads E2%80%93-part-ii](https://reader034.vdocuments.pub/reader034/viewer/2022050423/5f92116af23c6736873ef29f/html5/thumbnails/43.jpg)
ServerkonfigurationGZIPText (HTML, CSS, JS, JSON, XML, SVG, ...)
Expires headerBrowser cache
Keep aliveTCP/IP-Verbindung
![Page 45: Web Performance Optimierung - Walter Ebert · Mozilla 2,2 Sekunden schneller 15,4% mehr Downloads E2%80%93-part-ii](https://reader034.vdocuments.pub/reader034/viewer/2022050423/5f92116af23c6736873ef29f/html5/thumbnails/45.jpg)
Kombiniere CSS / Javascript<link rel="stylesheet" type="text/css" href="style.css" />
<link rel="stylesheet" type="text/css" href="forms.css" />
<link rel="stylesheet" type="text/css" href="layer.css" />
<link rel="stylesheet" type="text/css" href="jcarousel.css" />
<link rel="stylesheet" type="text/css" href="lightbox.css" />
Wird
<link rel="stylesheet" type="text/css" href="combined.css?v=20130625" />
Oder
<link rel="stylesheet" type="text/css" href="combined-20130625.css" />
![Page 46: Web Performance Optimierung - Walter Ebert · Mozilla 2,2 Sekunden schneller 15,4% mehr Downloads E2%80%93-part-ii](https://reader034.vdocuments.pub/reader034/viewer/2022050423/5f92116af23c6736873ef29f/html5/thumbnails/46.jpg)
Minifiziere CSS / Javascript
• Yahoo! YUI Compressor (Java)• Google Closure Compiler (Java)• Uglify.js (Node.js)• Microsoft Ajax Minifier (Windows)
![Page 47: Web Performance Optimierung - Walter Ebert · Mozilla 2,2 Sekunden schneller 15,4% mehr Downloads E2%80%93-part-ii](https://reader034.vdocuments.pub/reader034/viewer/2022050423/5f92116af23c6736873ef29f/html5/thumbnails/47.jpg)
https://github.com/h5bp/ant-build-script https://github.com/h5bp/node-build-script
![Page 48: Web Performance Optimierung - Walter Ebert · Mozilla 2,2 Sekunden schneller 15,4% mehr Downloads E2%80%93-part-ii](https://reader034.vdocuments.pub/reader034/viewer/2022050423/5f92116af23c6736873ef29f/html5/thumbnails/48.jpg)
https://developers.google.com/speed/pagespeed/mod
http://www.youtube.com/watch?v=uR5urTx8S4E
![Page 49: Web Performance Optimierung - Walter Ebert · Mozilla 2,2 Sekunden schneller 15,4% mehr Downloads E2%80%93-part-ii](https://reader034.vdocuments.pub/reader034/viewer/2022050423/5f92116af23c6736873ef29f/html5/thumbnails/49.jpg)
http://www.webpagetest.org/result/130616_3E_A0H/1/details/
SSL
![Page 50: Web Performance Optimierung - Walter Ebert · Mozilla 2,2 Sekunden schneller 15,4% mehr Downloads E2%80%93-part-ii](https://reader034.vdocuments.pub/reader034/viewer/2022050423/5f92116af23c6736873ef29f/html5/thumbnails/50.jpg)
HTTP(S)
<script src="//connect.facebook.net/de_DE/all.js"></script>
![Page 51: Web Performance Optimierung - Walter Ebert · Mozilla 2,2 Sekunden schneller 15,4% mehr Downloads E2%80%93-part-ii](https://reader034.vdocuments.pub/reader034/viewer/2022050423/5f92116af23c6736873ef29f/html5/thumbnails/51.jpg)
Javascript am EndeAlso:</div><script src=scripts.js></script></body></html>
Anstatt:<head><script src=scripts.js></script></head><body>
Alternativ:<script src=scripts.js defer></script>
http://walterebert.com/playground/wpo/js-footer/
![Page 52: Web Performance Optimierung - Walter Ebert · Mozilla 2,2 Sekunden schneller 15,4% mehr Downloads E2%80%93-part-ii](https://reader034.vdocuments.pub/reader034/viewer/2022050423/5f92116af23c6736873ef29f/html5/thumbnails/52.jpg)
http://www.webpagetest.org/video/view.php?id=130622_547adbeec08ac5728ade73cc274453758a4ef2f8&data=1
![Page 53: Web Performance Optimierung - Walter Ebert · Mozilla 2,2 Sekunden schneller 15,4% mehr Downloads E2%80%93-part-ii](https://reader034.vdocuments.pub/reader034/viewer/2022050423/5f92116af23c6736873ef29f/html5/thumbnails/53.jpg)
http://www.webpagetest.org/video/view.php?id=130622_547adbeec08ac5728ade73cc274453758a4ef2f8&data=1
![Page 54: Web Performance Optimierung - Walter Ebert · Mozilla 2,2 Sekunden schneller 15,4% mehr Downloads E2%80%93-part-ii](https://reader034.vdocuments.pub/reader034/viewer/2022050423/5f92116af23c6736873ef29f/html5/thumbnails/54.jpg)
Nicht-blockierend ladenAus:<script src=//connect.facebook.net/de_DE/all.js></script>
Wird:<script>(function(d, s, id) { var js, fjs = d.getElementsByTagName(s)[0]; if (d.getElementById(id)) return; js = d.createElement(s); js.id = id; js.src = "//connect.facebook.net/de_DE/all.js"; fjs.parentNode.insertBefore(js, fjs);}(document, "script", "facebook-jssdk"));</script>
Oder:<script src=//connect.facebook.net/de_DE/all.js async></script>
![Page 55: Web Performance Optimierung - Walter Ebert · Mozilla 2,2 Sekunden schneller 15,4% mehr Downloads E2%80%93-part-ii](https://reader034.vdocuments.pub/reader034/viewer/2022050423/5f92116af23c6736873ef29f/html5/thumbnails/55.jpg)
WebfontsAus:<link rel='stylesheet' id='fontdeck-css'
href='http://f.fontdeck.com/s/css/qjAxanDb3GzL8rviVV7PWUySExw/*.smashingmagazine.com/12777.css?ver=1363158490' type='text/css' media='screen, print' />
Wird:<script>WebFontConfig ={ fontdeck: { id: '12777' }};(function() { var wf = document.createElement('script'); wf.src = ('https:' == document.location.protocol ? 'https' : 'http') + '://ajax.googleapis.com/ajax/libs/webfont/1/webfont.js'; wf.type = 'text/javascript'; wf.async = 'true'; var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(wf, s);})();</script>
https://developers.google.com/webfonts/docs/webfont_loader
![Page 56: Web Performance Optimierung - Walter Ebert · Mozilla 2,2 Sekunden schneller 15,4% mehr Downloads E2%80%93-part-ii](https://reader034.vdocuments.pub/reader034/viewer/2022050423/5f92116af23c6736873ef29f/html5/thumbnails/56.jpg)
Vergleich
http://www.webpagetest.org/video/compare.php?tests=130208_6K_PNS,130208_CZ_PNT
![Page 57: Web Performance Optimierung - Walter Ebert · Mozilla 2,2 Sekunden schneller 15,4% mehr Downloads E2%80%93-part-ii](https://reader034.vdocuments.pub/reader034/viewer/2022050423/5f92116af23c6736873ef29f/html5/thumbnails/57.jpg)
Redirects
<?php
header('Location: /de/startseite');
![Page 58: Web Performance Optimierung - Walter Ebert · Mozilla 2,2 Sekunden schneller 15,4% mehr Downloads E2%80%93-part-ii](https://reader034.vdocuments.pub/reader034/viewer/2022050423/5f92116af23c6736873ef29f/html5/thumbnails/58.jpg)
Clientseitigvs.
Serverseitig
http://www.brucelawson.co.uk/2013/the-amazing-all-new-performant-holy-grail-app-development-method/http://www.netmagazine.com/news/twitter-hashbang-walloped-121992
![Page 60: Web Performance Optimierung - Walter Ebert · Mozilla 2,2 Sekunden schneller 15,4% mehr Downloads E2%80%93-part-ii](https://reader034.vdocuments.pub/reader034/viewer/2022050423/5f92116af23c6736873ef29f/html5/thumbnails/60.jpg)
Prefetching
<link rel="dns-prefetch" href="//ajax.googleapis.com">
<link rel="prefetch" href="http://tastywhe.at/yes/">
<link rel="prerender" href="http://tastywhe.at/no/">
![Page 61: Web Performance Optimierung - Walter Ebert · Mozilla 2,2 Sekunden schneller 15,4% mehr Downloads E2%80%93-part-ii](https://reader034.vdocuments.pub/reader034/viewer/2022050423/5f92116af23c6736873ef29f/html5/thumbnails/61.jpg)
<input type="email" required>
http://walterebert.com/playground/html5/input-types/
Form Input Types
![Page 62: Web Performance Optimierung - Walter Ebert · Mozilla 2,2 Sekunden schneller 15,4% mehr Downloads E2%80%93-part-ii](https://reader034.vdocuments.pub/reader034/viewer/2022050423/5f92116af23c6736873ef29f/html5/thumbnails/62.jpg)
Touch
![Page 63: Web Performance Optimierung - Walter Ebert · Mozilla 2,2 Sekunden schneller 15,4% mehr Downloads E2%80%93-part-ii](https://reader034.vdocuments.pub/reader034/viewer/2022050423/5f92116af23c6736873ef29f/html5/thumbnails/63.jpg)
Video Media Queries
<video controls>
<source src="small.mp4" type="video/mp4"
media="all and (max-width:480px)">
<source src="small.webm" type="video/webm"
media="all and (max-width:480px)">
<source src="big.mp4" type="video/mp4">
<source src="big.webm" type="video/webm">
</video>
Könnte aus der HTML5 Spezifikation entfernt werden!
![Page 64: Web Performance Optimierung - Walter Ebert · Mozilla 2,2 Sekunden schneller 15,4% mehr Downloads E2%80%93-part-ii](https://reader034.vdocuments.pub/reader034/viewer/2022050423/5f92116af23c6736873ef29f/html5/thumbnails/64.jpg)
MP4 Support<script>
function supports_mp4() {
return !!document.createElement('video').canPlayType('video/mp4;
codecs="avc1.42E01E"').replace(/^no$/,'');
}
function supports_flash() {
var hasFlash = false;
try {
var fo = new ActiveXObject('ShockwaveFlash.ShockwaveFlash');
if(fo) hasFlash = true;
}catch(e){
var fm = navigator.mimeTypes["application/x-shockwave-flash"];
if( fm && fm.enabledPlugin ) hasFlash = true;
}
return hasFlash;
}
</script>http://walterebert.com/playground/video/mp4/
![Page 65: Web Performance Optimierung - Walter Ebert · Mozilla 2,2 Sekunden schneller 15,4% mehr Downloads E2%80%93-part-ii](https://reader034.vdocuments.pub/reader034/viewer/2022050423/5f92116af23c6736873ef29f/html5/thumbnails/65.jpg)
MP4 moov atom
ffmpeg -i alt.mp4 -c:v copy -c:a copy -movflags faststart neu.mp4
http://ffmpeg.org/http://www.adobe.com/devnet/video/articles/mp4_movie_atom.html
![Page 66: Web Performance Optimierung - Walter Ebert · Mozilla 2,2 Sekunden schneller 15,4% mehr Downloads E2%80%93-part-ii](https://reader034.vdocuments.pub/reader034/viewer/2022050423/5f92116af23c6736873ef29f/html5/thumbnails/66.jpg)
https://github.com/Modernizr/Modernizr/wiki/HTML5-Cross-browser-Polyfills
![Page 68: Web Performance Optimierung - Walter Ebert · Mozilla 2,2 Sekunden schneller 15,4% mehr Downloads E2%80%93-part-ii](https://reader034.vdocuments.pub/reader034/viewer/2022050423/5f92116af23c6736873ef29f/html5/thumbnails/68.jpg)
Responsive Design + Server Side Components(RESS)
http://www.lukew.com/ff/entry.asp?1392
![Page 69: Web Performance Optimierung - Walter Ebert · Mozilla 2,2 Sekunden schneller 15,4% mehr Downloads E2%80%93-part-ii](https://reader034.vdocuments.pub/reader034/viewer/2022050423/5f92116af23c6736873ef29f/html5/thumbnails/69.jpg)
http://de.slideshare.net/buddybrewer/tying-web-performance-data-to-human-behavior
![Page 70: Web Performance Optimierung - Walter Ebert · Mozilla 2,2 Sekunden schneller 15,4% mehr Downloads E2%80%93-part-ii](https://reader034.vdocuments.pub/reader034/viewer/2022050423/5f92116af23c6736873ef29f/html5/thumbnails/70.jpg)
Fazit• Weniger Requests• Kleinere Datenmengen• Parallele Downloads• Optische Täuschung
![Page 71: Web Performance Optimierung - Walter Ebert · Mozilla 2,2 Sekunden schneller 15,4% mehr Downloads E2%80%93-part-ii](https://reader034.vdocuments.pub/reader034/viewer/2022050423/5f92116af23c6736873ef29f/html5/thumbnails/71.jpg)
Walter Ebert
@wltrdwalterebert.de
slideshare.net/walterebert