Diese Präsentation wurde erfolgreich gemeldet.
Wir verwenden Ihre LinkedIn Profilangaben und Informationen zu Ihren Aktivitäten, um Anzeigen zu personalisieren und Ihnen relevantere Inhalte anzuzeigen. Sie können Ihre Anzeigeneinstellungen jederzeit ändern.

Making Mobile Sites Faster

12.457 Aufrufe

Veröffentlicht am

Slides from talk to NCC Group customers at AutoTrader Manchester on 22 Oct 2015

Veröffentlicht in: Mobil, Technologie
  • Hey guys! Who wants to chat with me? More photos with me here 👉 http://www.bit.ly/katekoxx
       Antworten 
    Sind Sie sicher, dass Sie …  Ja  Nein
    Ihre Nachricht erscheint hier
  • Nice !! Download 100 % Free Ebooks, PPts, Study Notes, Novels, etc @ https://www.ThesisScientist.com
       Antworten 
    Sind Sie sicher, dass Sie …  Ja  Nein
    Ihre Nachricht erscheint hier
  • Hello! Get Your Professional Job-Winning Resume Here - Check our website! https://vk.cc/818RFv
       Antworten 
    Sind Sie sicher, dass Sie …  Ja  Nein
    Ihre Nachricht erscheint hier

Making Mobile Sites Faster

  1. Making Mobile Sites Faster @andydavies NCC Group, Oct 2015 http://www.flickr.com/photos/b-tal/156919562
  2. The mobile web is under threat… Digital media usage time is exploding right now, and it’ predominantly being driven by mobile apps. 476,553 480,967 550,522 409,847 621,410 778,95477,081 97,440 118,299 0 200,000 400,000 600,000 800,000 1,000,000 1,200,000 1,400,000 1,600,000 Jun-2013 Jun-2014 Jun-2015 TotalMinutes(MM) Desktop Mobile App Mobile Browser Growth in Digital Media Time Spent Source: comScore Media Metrix Multi-Platform & Mobile Metrix, U.S., Total Audience +53% vs. 2013 +90% vs. 2013 +16% vs. 2013
  3. And mobile audience growth is being driven more by m properties, which are actually bigger and growing faste Average Monthly Audience: Top 1000 Mobile Apps vs. Top 1000 Mobile Web Properties Source: comScore Mobile Metrix, U.S., Age 18+ - 1,000 2,000 3,000 4,000 5,000 6,000 7,000 8,000 9,000 10,000 Jun-2014 Sep-2014 Dec-2014 Mar-2015 Jun-2015 UniqueVisitors(000) Apps Mobile Web +42% y/y +21% y/y Or is it?
  4. 29% 15% 11% 6% 6% 4% 3% 3% 23% Social Networking Radio Games Multimedia Instant Messengers Music Retail News/Information All Others Share of Mobile App Time Spent Source: comScore Media Metrix MP and Mobile Metrix, U.S., Total Audience, June 2015 Social media and entertainment account for the six top categories and drive two-thirds of total time spent on aApp usage is very specific
  5. “At the beginning of 2013 mobile (excluding tablet) accounted for 26% of our traffic, and we ended the year with it contributing 33%.” Stuart McMillan, Schuh As of Feb 2015 - 45%
  6. “Historically, mobile baskets have always been lower value than desktop but just before Christmas the difference was only about 6%” Stuart McMillan, Schuh
  7. Strangeloop Networks “85% of mobile users expect sites to load at least as fast or faster than sites on their desktop”
  8. 0.0% 0.5% 1.0% 1.5% 2.0% 0 2.0 4.0 6.0 8.0 10.0 12.0 14.0 16.0 18.0 20.0 22.0 24.0 Tablet Phone Desktop But we’re not quite meeting expectations Page Load Time %ofvisitorsperdevice
  9. “We’ve remade the Internet in our image… obese.” Jason Grigsby http://www.flickr.com/photos/mrtopher/1414159786
  10. Mobile Pages are Growing 0 100 200 300 400 500 600 700 800 900 1,000 1,100 1,200 1,300 1,400 N ov '12 Jan '13 Jun Jan '14 Jun O ct'15 Requests Size (kB) http://mobile.httparchive.org/ Size doubled in just three years!
  11. We’re relying on ever faster phones and networks http://www.flickr.com/photos/willposh/3825768273/
  12. 4G isn’t going to bail us out GSMA Intelligence + operators Estimated 20% of connections will be LTE by end of 2017 77.3M mobile connections 2-3M 4G connections
  13. http://www.flickr.com/photos/endlisnis/174511509
  14. So many devices… so much variation… http://www.flickr.com/photos/adactio/12674230513
  15. Meet the $25 Smartphone http://www.flickr.com/photos/mozillaeu/12748349115
  16. Networks are Improving 2G 2.5G 3G 4G WiFi Faster, Lower Latency??? Special networks… Conference, Hotel, Coffee shop WiFi
  17. Latency is still the big issue “In 2012, the average worldwide RTT to Google is still ~100ms, and ~50-60ms within the US.” http://www.igvita.com/2012/07/19/latency-the-new-web-performance-bottleneck/ “we are looking at 100-1000ms RTT range on mobile” Ilya Grigorik
  18. http://www.flickr.com/photos/fastjack/2943793818 It’s not just about speed
  19. 3G Radio Resource Control http://web.eecs.umich.edu/~fengqian/paper/3g_imc10.pdf IDLE CELL_FACH CELL_DCH Idle for 5s Idle for 12s 1-2s delay! Exact timings vary and depend on carrier NOT device 1s delay
  20. Fast mobile sites have shorter waterfalls
  21. 0 100 200 300 400 500 600 700 800 900 1,000 1,100 1,200 1,300 N ov '12 Jan '13 Jun Jan '14 Jun O ct'15 HTML CSS Fonts Javascript Images Other What are mobile sites made of? http://mobile.httparchive.org/
  22. HTML size isn’t changing much 0 10 20 30 40 50 60 70 N ov '12 Jan '13 Jun Jan '14 Jun O ct'15 Requests Size (kB) http://mobile.httparchive.org/
  23. Images are the Bulk of Download 0 100 200 300 400 500 600 700 800 N ov '12 Jan '13 Jun Jan '14 Jun O ct'15 Requests Size (kB) http://mobile.httparchive.org/
  24. Time to bury bitmapped images? http://www.flickr.com/photos/tonyjcase/7183556158
  25. Use vector graphics instead? SVG: 12 KB vs PNG: 86KB
  26. Or CSS? border-radius: 20px; background: linear-gradient(left, #f06, #ff0); Some combinations produce poor paint performance
  27. What if only a bitmap image will do? http://www.flickr.com/photos/orkomedix/5026054826
  28. Size images for the viewport http://www.flickr.com/photos/emzee/139794246
  29. <img src="cat.jpg" alt="cat" srcset="cat-160.jpg 160w, cat-320.jpg 320w, cat-640.jpg 640w, cat-1280.jpg 1280w" sizes=“(max-width: 480px) 100vw, (max-width: 900px) 33vw, 254px"> Size images for the viewport
  30. <img src="cat.jpg" alt="cat" srcset="cat-160.jpg 160w, cat-320.jpg 320w, cat-640.jpg 640w, cat-1280.jpg 1280w" sizes=“(max-width: 480px) 100vw, (max-width: 900px) 33vw, 254px"> Size images for the viewport srcset specifies the images and their width
  31. <img src="cat.jpg" alt="cat" srcset="cat-160.jpg 160w, cat-320.jpg 320w, cat-640.jpg 640w, cat-1280.jpg 1280w" sizes=“(max-width: 480px) 100vw, (max-width: 900px) 33vw, 254px"> Size images for the viewport sizes specifies how they should be displayed at each window width
  32. <img src="cat.jpg" alt="cat" srcset="cat-160.jpg 160w, cat-320.jpg 320w, cat-640.jpg 640w, cat-1280.jpg 1280w" sizes=“(max-width: 480px) 100vw, (max-width: 900px) 33vw, 254px"> Size images for the viewport fall back for browsers that don’t support srcset
  33. Runner gets lost as image shrinks As images get smaller need to focus on subject
  34. As images get smaller need to focus on subject
  35. <picture> <source srcset="runner-wide.jpg" media="(min-width: 1200px)"> <source srcset="runner-narrow_copy.jpg" media="(min-width: 800px)"> <img src="male-runner-square.jpg" srcset="runner-square.jpg" alt="Photograph of man running along pier during sunset"> </picture> Switch images for different viewports
  36. <picture> <source srcset="runner-wide.jpg" media="(min-width: 1200px)"> <source srcset="runner-narrow_copy.jpg" media="(min-width: 800px)"> <img src="male-runner-square.jpg" srcset="runner-square.jpg" alt="Photograph of man running along pier during sunset"> </picture> Source element specifies uses media query to indicate which image to use Switch images for different viewports
  37. <picture> <source srcset="runner-wide.jpg" media="(min-width: 1200px)"> <source srcset="runner-narrow_copy.jpg" media="(min-width: 800px)"> <img src="male-runner-square.jpg" srcset="runner-square.jpg" alt="Photograph of man running along pier during sunset"> </picture> Can specify multiple sources with different media queries Switch images for different viewports
  38. <picture> <source srcset="runner-wide.jpg" media="(min-width: 1200px)"> <source srcset="runner-narrow_copy.jpg" media="(min-width: 800px)"> <img src="male-runner-square.jpg" srcset="runner-square.jpg" alt="Photograph of man running along pier during sunset"> </picture> img fallback for browsers that don’t support picture or when no query matches Switch images for different viewports
  39. ???
  40. http://www.flickr.com/photos/wiertz/6922984303 What’s needed to render the page?
  41. Prioritise the Content Guardian divide page into: - Content - Enhancements - Leftovers
  42. How it looks in practice
  43. Fonts, Stylesheets, JavaScript all block the page http://www.flickr.com/photos/timo/3995227
  44. CSS size is creeping up 0 10 20 30 40 50 60 N ov '12 Jan '13 Jun Jan '14 Jun O ct'15 Requests Size (kB) http://mobile.httparchive.org/
  45. Doubled Javascript in 3 Years! 0 50 100 150 200 250 300 350 N ov '12 Jan '13 Jun Jan '14 Jun O ct'15 Requests Size (kB) http://mobile.httparchive.org/ How much of it do we actually need?
  46. Added 160kB to page Increased bounce rate by 12% on mobile https://speakerdeck.com/lara/design-for-performance
  47. We’ve fallen in love with web fonts http://www.flickr.com/photos/splorp/4951916342
  48. and their use has exploded! 0 10 20 30 40 50 60 70 N ov '12 Jan '13 Jun Jan '14 Jun O ct'15 Requests Size (kB) http://mobile.httparchive.org/
  49. But at what cost to visitors experience?
  50. Fonts are discovered late in rendering process HTML CSS DOM CSSOM Render Tree Layout PaintJavaScript Fonts discovered when render tree builds
  51. ! " # $ % & ' ( ) * + , - . / 0 1 2 3 4 5 6 7 8 9 : ; < = > ? @ A B C D E F G H I J K L M N O P Q R S T U V W X Y Z [ ] ^ _ ` a b c d e f g h i j k l m n o p q r s t u v w x y z { | } ~ ¡ ¢ £ ¤ ¥ ¦ § ¨ © ª « ¬ ® ¯ ° ± ² ³ ´ µ ¶ · ¸ ¹ º » ¼ ½ ¾ ¿ À Á Â Ã Ä Å Æ Ç È É Ê Ë Ì Í Î Ï Ð Ñ Ò Ó Ô Õ Ö × Ø Ù Ú Û Ü Ý Þ ß à á â ã ä å æ ç è é ê ë ì í î ï ð ñ ò ó ô õ ö ÷ ø ù ú û ü ý þ ÿ Ā ā Ă ă Ą ą Ć ć Ĉ ĉ Ċ ċ Č č Ď ď Đ đ Ē ē Ĕ ĕ Ė ė Ę ę Ě ě Ĝ ĝ Ğ ğ Ġ ġ Ģ ģ Ĥ ĥ Ħ ħ Ĩ ĩ Ī ī Ĭ ĭ Į į İ ı IJ ij Ĵ ĵ Ķ ķ ĸ Ĺ ĺ Ļ ļ Ľ ľ Ŀ ŀ Ł ł Ń ń Ņ ņ Ň ň ʼn Ŋ ŋ Ō ō Ŏ ŏ Ő ő Œ œ Ŕ ŕ Ŗ ŗ Ř ř Ś ś Ŝ ŝ Ş ş Š š Ţ ţ Ť ť Ŧ ŧ Ũ ũ Ū ū Ŭ ŭ Ů ů Ű ű Ų ų Ŵ ŵ Ŷ ŷ Ÿ Ź ź Ż ż Ž ž ſ ƒ Ơ ơ Ư ư ǰ Ǻ ǻ Ǽ ǽ Ǿ ǿ Ș ș Ț ț ȷ ʼ ˆ ˇ ˉ ˘ ˙ ˚ ˛ ˜ ˝ ˳ ̀ ́ ̃ ̉ ̏ ̣ ΄ ΅ Ά · Έ Ή Ί Ό Ύ Ώ ΐ Α Β Γ Δ Ε Ζ Η Θ Ι Κ Λ Μ Ν Ξ Ο Π Ρ Σ Τ Υ Φ Χ Ψ Ω Ϊ Ϋ ά έ ή ί ΰ α β γ δ ε ζ η θ ι κ λ μ ν ξ ο π ρ ς σ τ υ φ χ ψ ω ϊ ϋ ό ύ ώ ϑ ϒ ϖ Ѐ Ё Ђ Ѓ Є Ѕ І Ї Ј Љ Њ Ћ Ќ Ѝ Ў Џ А Б В Г Д Е Ж З И Й К Л М Н О П Р С Т У Ф Х Ц Ч Ш Щ Ъ Ы Ь Э Ю Я а б в г д е ж з и й к л м н о п р с т у ф х ц ч ш щ ъ ы ь э ю я ѐ ё ђ ѓ є ѕ і ї ј љ њ ћ ќ ѝ ў џ Ѡ ѡ Ѣ ѣ Ѥ ѥ Ѧ ѧ Ѩ ѩ Ѫ ѫ Ѭ ѭ Ѯ ѯ Ѱ ѱ Ѳ ѳ Ѵ ѵ Ѷ ѷ Ѹ ѹ Ѻ ѻ Ѽ ѽ Ѿ ѿ Ҁ ҁ ҂ ҃ ҄ ҅ ҆ ҈ ҉ Ҋ ҋ Ҍ ҍ Ҏ ҏ Ґ ґ Ғ ғ Ҕ ҕ Җ җ Ҙ ҙ Қ қ Ҝ ҝ Ҟ ҟ Ҡ ҡ Ң ң Ҥ ҥ Ҧ ҧ Ҩ ҩ Ҫ ҫ Ҭ ҭ Ү ү Ұ ұ Ҳ ҳ Ҵ ҵ Ҷ ҷ Ҹ ҹ Һ һ Ҽ ҽ Ҿ ҿ Ӏ Ӂ ӂ Ӄ ӄ Ӆ ӆ Ӈ ӈ Ӊ ӊ Ӌ ӌ Ӎ ӎ ӏ Ӑ ӑ Ӓ ӓ Ӕ ӕ Ӗ ӗ Ә ә Ӛ ӛ Ӝ ӝ Ӟ ӟ Ӡ ӡ Ӣ ӣ Ӥ ӥ Ӧ ӧ Ө ө Ӫ ӫ Ӭ ӭ Ӯ ӯ Ӱ ӱ Ӳ ӳ Ӵ ӵ Ӷ ӷ Ӹ ӹ Ӻ ӻ Ӽ ӽ Ӿ ӿ Ԁ ԁ Ԃ ԃ Ԅ ԅ Ԇ ԇ Ԉ ԉ Ԋ ԋ Ԍ ԍ Ԏ ԏ Ԑ ԑ Ԓ ԓ Ḁ ḁ Ḿ ḿ Ẁ ẁ Ẃ ẃ Ẅ ẅ Ạ ạ Ả ả Ấ ấ Ầ ầ Ẩ ẩ Ẫ ẫ Ậ ậ Ắ ắ Ằ ằ Ẳ ẳ Ẵ ẵ Ặ ặ Ẹ ẹ Ẻ ẻ Ẽ ẽ Ế ế Ề ề Ể ể Ễ ễ Ệ ệ Ỉ ỉ Ị ị Ọ ọ Ỏ ỏ Ố ố Ồ ồ Ổ ổ Ỗ ỗ Ộ ộ Ớ ớ Ờ ờ Ở ở Ỡ ỡ Ợ ợ Ụ ụ Ủ ủ Ứ ứ Ừ ừ Ử ử Ữ ữ Ự ự Ỳ ỳ Ỵ ỵ Ỷ ỷ Ỹ ỹ Ὅ – — ― ‗ ‘ ’ ‚ ‛ “ ” „ † ‡ • … ‰ ′ ″ ‹ › ‼ ⁄ ⁰ ⁴ ⁵ ⁶ ⁷ ⁸ ⁹ ⁿ ₣ ₤ ₧ ₫ € ℅ № ℠ ™ Ω ⅛ ⅜ ⅝ ⅞ ∂ ∆ ∏ ∑ − √ ∞ ∫ ≈ ≠ ≤ ≥ ◊ ff fi fl ffi ffl  Do we need all those glyphs? Open Sans — 22.1 kB
  52. ! " # $ % & ' ( ) * + , - . / 0 1 2 3 4 5 6 7 8 9 : ; < = > ? @ A B C D E F G H I J K L M N O P Q R S T U V W X Y Z [ ] ^ _ ` a b c d e f g h i j k l m n o p q r s t u v w x y z { | } ~ ¡ ¢ £ ¤ ¥ ¦ § ¨ © ª « ¬ ® ¯ ° ± ² ³ ´ µ ¶ · ¸ ¹ º » ¼ ½ ¾ ¿ À Á Â Ã Ä Å Æ Ç È É Ê Ë Ì Í Î Ï Ð Ñ Ò Ó Ô Õ Ö × Ø Ù Ú Û Ü Ý Þ ß à á â ã ä å æ ç è é ê ë ì í î ï ð ñ ò ó ô õ ö ÷ ø ù ú û ü ý þ ÿ Ā ā Ă ă Ą ą Ć ć Ĉ ĉ Ċ ċ Č č Ď ď Đ đ Ē ē Ĕ ĕ Ė ė Ę ę Ě ě Ĝ ĝ Ğ ğ Ġ ġ Ģ ģ Ĥ ĥ Ħ ħ Ĩ ĩ Ī ī Ĭ ĭ Į į İ ı IJ ij Ĵ ĵ Ķ ķ ĸ Ĺ ĺ Ļ ļ Ľ ľ Ŀ ŀ Ł ł Ń ń Ņ ņ Ň ň ʼn Ŋ ŋ Ō ō Ŏ ŏ Ő ő Œ œ Ŕ ŕ Ŗ ŗ Ř ř Ś ś Ŝ ŝ Ş ş Š š Ţ ţ Ť ť Ŧ ŧ Ũ ũ Ū ū Ŭ ŭ Ů ů Ű ű Ų ų Ŵ ŵ Ŷ ŷ Ÿ Ź ź Ż ż Ž ž ſ ƒ Ơ ơ Ư ư ǰ Ǻ ǻ Ǽ ǽ Ǿ ǿ Ș ș Ț ț ȷ ʼ ˆ ˇ ˉ ˘ ˙ ˚ ˛ ˜ ˝ ˳ ̀ ́ ̃ ̉ ̏ ̣ ΄ ΅ Ά · Έ Ή Ί Ό Ύ Ώ ΐ Α Β Γ Δ Ε Ζ Η Θ Ι Κ Λ Μ Ν Ξ Ο Π Ρ Σ Τ Υ Φ Χ Ψ Ω Ϊ Ϋ ά έ ή ί ΰ α β γ δ ε ζ η θ ι κ λ μ ν ξ ο π ρ ς σ τ υ φ χ ψ ω ϊ ϋ ό ύ ώ ϑ ϒ ϖ Ѐ Ё Ђ Ѓ Є Ѕ І Ї Ј Љ Њ Ћ Ќ Ѝ Ў Џ А Б В Г Д Е Ж З И Й К Л М Н О П Р С Т У Ф Х Ц Ч Ш Щ Ъ Ы Ь Э Ю Я а б в г д е ж з и й к л м н о п р с т у ф х ц ч ш щ ъ ы ь э ю я ѐ ё ђ ѓ є ѕ і ї ј љ њ ћ ќ ѝ ў џ Ѡ ѡ Ѣ ѣ Ѥ ѥ Ѧ ѧ Ѩ ѩ Ѫ ѫ Ѭ ѭ Ѯ ѯ Ѱ ѱ Ѳ ѳ Ѵ ѵ Ѷ ѷ Ѹ ѹ Ѻ ѻ Ѽ ѽ Ѿ ѿ Ҁ ҁ ҂ ҃ ҄ ҅ ҆ ҈ ҉ Ҋ ҋ Ҍ ҍ Ҏ ҏ Ґ ґ Ғ ғ Ҕ ҕ Җ җ Ҙ ҙ Қ қ Ҝ ҝ Ҟ ҟ Ҡ ҡ Ң ң Ҥ ҥ Ҧ ҧ Ҩ ҩ Ҫ ҫ Ҭ ҭ Ү ү Ұ ұ Ҳ ҳ Ҵ ҵ Ҷ ҷ Ҹ ҹ Һ һ Ҽ ҽ Ҿ ҿ Ӏ Ӂ ӂ Ӄ ӄ Ӆ ӆ Ӈ ӈ Ӊ ӊ Ӌ ӌ Ӎ ӎ ӏ Ӑ ӑ Ӓ ӓ Ӕ ӕ Ӗ ӗ Ә ә Ӛ ӛ Ӝ ӝ Ӟ ӟ Ӡ ӡ Ӣ ӣ Ӥ ӥ Ӧ ӧ Ө ө Ӫ ӫ Ӭ ӭ Ӯ ӯ Ӱ ӱ Ӳ ӳ Ӵ ӵ Ӷ ӷ Ӹ ӹ Ӻ ӻ Ӽ ӽ Ӿ ӿ Ԁ ԁ Ԃ ԃ Ԅ ԅ Ԇ ԇ Ԉ ԉ Ԋ ԋ Ԍ ԍ Ԏ ԏ Ԑ ԑ Ԓ ԓ Ḁ ḁ Ḿ ḿ Ẁ ẁ Ẃ ẃ Ẅ ẅ Ạ ạ Ả ả Ấ ấ Ầ ầ Ẩ ẩ Ẫ ẫ Ậ ậ Ắ ắ Ằ ằ Ẳ ẳ Ẵ ẵ Ặ ặ Ẹ ẹ Ẻ ẻ Ẽ ẽ Ế ế Ề ề Ể ể Ễ ễ Ệ ệ Ỉ ỉ Ị ị Ọ ọ Ỏ ỏ Ố ố Ồ ồ Ổ ổ Ỗ ỗ Ộ ộ Ớ ớ Ờ ờ Ở ở Ỡ ỡ Ợ ợ Ụ ụ Ủ ủ Ứ ứ Ừ ừ Ử ử Ữ ữ Ự ự Ỳ ỳ Ỵ ỵ Ỷ ỷ Ỹ ỹ Ὅ – — ― ‗ ‘ ’ ‚ ‛ “ ” „ † ‡ • … ‰ ′ ″ ‹ › ‼ ⁄ ⁰ ⁴ ⁵ ⁶ ⁷ ⁸ ⁹ ⁿ ₣ ₤ ₧ ₫ € ℅ № ℠ ™ Ω ⅛ ⅜ ⅝ ⅞ ∂ ∆ ∏ ∑ − √ ∞ ∫ ≈ ≠ ≤ ≥ ◊ ff fi fl ffi ffl  14.9 kB — 33% saving
  53. ! " # $ % & ' ( ) * + , - . / 0 1 2 3 4 5 6 7 8 9 : ; < = > ? @ A B C D E F G H I J K L M N O P Q R S T U V W X Y Z [ ] ^ _ ` a b c d e f g h i j k l m n o p q r s t u v w x y z { | } ~ ¡ ¢ £ ¤ ¥ ¦ § ¨ © ª « ¬ ® ¯ ° ± ² ³ ´ µ ¶ · ¸ ¹ º » ¼ ½ ¾ ¿ À Á Â Ã Ä Å Æ Ç È É Ê Ë Ì Í Î Ï Ð Ñ Ò Ó Ô Õ Ö × Ø Ù Ú Û Ü Ý Þ ß à á â ã ä å æ ç è é ê ë ì í î ï ð ñ ò ó ô õ ö ÷ ø ù ú û ü ý þ ÿ Ā ā Ă ă Ą ą Ć ć Ĉ ĉ Ċ ċ Č č Ď ď Đ đ Ē ē Ĕ ĕ Ė ė Ę ę Ě ě Ĝ ĝ Ğ ğ Ġ ġ Ģ ģ Ĥ ĥ Ħ ħ Ĩ ĩ Ī ī Ĭ ĭ Į į İ ı IJ ij Ĵ ĵ Ķ ķ ĸ Ĺ ĺ Ļ ļ Ľ ľ Ŀ ŀ Ł ł Ń ń Ņ ņ Ň ň ʼn Ŋ ŋ Ō ō Ŏ ŏ Ő ő Œ œ Ŕ ŕ Ŗ ŗ Ř ř Ś ś Ŝ ŝ Ş ş Š š Ţ ţ Ť ť Ŧ ŧ Ũ ũ Ū ū Ŭ ŭ Ů ů Ű ű Ų ų Ŵ ŵ Ŷ ŷ Ÿ Ź ź Ż ż Ž ž ſ ƒ Ơ ơ Ư ư ǰ Ǻ ǻ Ǽ ǽ Ǿ ǿ Ș ș Ț ț ȷ ʼ ˆ ˇ ˉ ˘ ˙ ˚ ˛ ˜ ˝ ˳ ̀ ́ ̃ ̉ ̏ ̣ ΄ ΅ Ά · Έ Ή Ί Ό Ύ Ώ ΐ Α Β Γ Δ Ε Ζ Η Θ Ι Κ Λ Μ Ν Ξ Ο Π Ρ Σ Τ Υ Φ Χ Ψ Ω Ϊ Ϋ ά έ ή ί ΰ α β γ δ ε ζ η θ ι κ λ μ ν ξ ο π ρ ς σ τ υ φ χ ψ ω ϊ ϋ ό ύ ώ ϑ ϒ ϖ Ѐ Ё Ђ Ѓ Є Ѕ І Ї Ј Љ Њ Ћ Ќ Ѝ Ў Џ А Б В Г Д Е Ж З И Й К Л М Н О П Р С Т У Ф Х Ц Ч Ш Щ Ъ Ы Ь Э Ю Я а б в г д е ж з и й к л м н о п р с т у ф х ц ч ш щ ъ ы ь э ю я ѐ ё ђ ѓ є ѕ і ї ј љ њ ћ ќ ѝ ў џ Ѡ ѡ Ѣ ѣ Ѥ ѥ Ѧ ѧ Ѩ ѩ Ѫ ѫ Ѭ ѭ Ѯ ѯ Ѱ ѱ Ѳ ѳ Ѵ ѵ Ѷ ѷ Ѹ ѹ Ѻ ѻ Ѽ ѽ Ѿ ѿ Ҁ ҁ ҂ ҃ ҄ ҅ ҆ ҈ ҉ Ҋ ҋ Ҍ ҍ Ҏ ҏ Ґ ґ Ғ ғ Ҕ ҕ Җ җ Ҙ ҙ Қ қ Ҝ ҝ Ҟ ҟ Ҡ ҡ Ң ң Ҥ ҥ Ҧ ҧ Ҩ ҩ Ҫ ҫ Ҭ ҭ Ү ү Ұ ұ Ҳ ҳ Ҵ ҵ Ҷ ҷ Ҹ ҹ Һ һ Ҽ ҽ Ҿ ҿ Ӏ Ӂ ӂ Ӄ ӄ Ӆ ӆ Ӈ ӈ Ӊ ӊ Ӌ ӌ Ӎ ӎ ӏ Ӑ ӑ Ӓ ӓ Ӕ ӕ Ӗ ӗ Ә ә Ӛ ӛ Ӝ ӝ Ӟ ӟ Ӡ ӡ Ӣ ӣ Ӥ ӥ Ӧ ӧ Ө ө Ӫ ӫ Ӭ ӭ Ӯ ӯ Ӱ ӱ Ӳ ӳ Ӵ ӵ Ӷ ӷ Ӹ ӹ Ӻ ӻ Ӽ ӽ Ӿ ӿ Ԁ ԁ Ԃ ԃ Ԅ ԅ Ԇ ԇ Ԉ ԉ Ԋ ԋ Ԍ ԍ Ԏ ԏ Ԑ ԑ Ԓ ԓ Ḁ ḁ Ḿ ḿ Ẁ ẁ Ẃ ẃ Ẅ ẅ Ạ ạ Ả ả Ấ ấ Ầ ầ Ẩ ẩ Ẫ ẫ Ậ ậ Ắ ắ Ằ ằ Ẳ ẳ Ẵ ẵ Ặ ặ Ẹ ẹ Ẻ ẻ Ẽ ẽ Ế ế Ề ề Ể ể Ễ ễ Ệ ệ Ỉ ỉ Ị ị Ọ ọ Ỏ ỏ Ố ố Ồ ồ Ổ ổ Ỗ ỗ Ộ ộ Ớ ớ Ờ ờ Ở ở Ỡ ỡ Ợ ợ Ụ ụ Ủ ủ Ứ ứ Ừ ừ Ử ử Ữ ữ Ự ự Ỳ ỳ Ỵ ỵ Ỷ ỷ Ỹ ỹ Ὅ – — ― ‗ ‘ ’ ‚ ‛ “ ” „ † ‡ • … ‰ ′ ″ ‹ › ‼ ⁄ ⁰ ⁴ ⁵ ⁶ ⁷ ⁸ ⁹ ⁿ ₣ ₤ ₧ ₫ € ℅ № ℠ ™ Ω ⅛ ⅜ ⅝ ⅞ ∂ ∆ ∏ ∑ − √ ∞ ∫ ≈ ≠ ≤ ≥ ◊ ff fi fl ffi ffl  8.3 kB — 62% saving
  54. font-display: auto | block | swap | fallback | optional; (coming soon) https://tabatkins.github.io/specs/css-font-display/ Control whether a font blocks rendering
  55. Heydings by Heydon Works Replace icon fonts with SVG
  56. Death to Icon Fonts @ninjanails Epic FEL, Sept 2015 https://www.flickr.com/photos/minifig/3186925111/
  57. W3C Resource Hints should help too <link rel="dns-prefetch" href=“//example.com”> <link rel="preconnect" href=“//example.com”> <link rel="preload" href=“//example.com/font.woff” as=“font”>
  58. What can we put off until later? http://www.flickr.com/photos/melodramababs/5962771148
  59. https://speakerdeck.com/mikeyk/secrets-to-lightning-fast-mobile-design
  60. User gets feedback Network request still in progress
  61. Magic, the Art of Misdirection http://www.flickr.com/photos/nozzer/3990622685
  62. http://mercury.io/blog/the-psychology-of-waiting-loading-animations-and-facebook
  63. http://www.flickr.com/photos/communityfriend/2342578485 Embrace Constraints… Set a budget
  64. http://www.flickr.com/photos/communityfriend/2342578485 Requests, page size etc. are easier to measure but may not represent real world experience Embrace Constraints… Set a budget “Usable within 10 seconds on GPRS connection” - BBC News “SpeedIndex under 1000” - Paul Irish, Google
  65. Be deliberate, design for performance https://www.flickr.com/photos/9760699@N08/3748770917
  66. Measure frequently - during build… http://www.flickr.com/photos/chandramarsono/4324373384
  67. 0.0% 0.5% 1.0% 1.5% 2.0% 0 2.0 4.0 6.0 8.0 10.0 12.0 14.0 16.0 18.0 20.0 22.0 24.0 Tablet Phone Desktop and in live - visitor’s experience varies Page Load Time %ofvisitorsperdevice
  68. New opportunities are arriving too https://www.flickr.com/photos/inucara/14981917985
  69. They mix reach of the web, with ease of apps Service Worker (programmable proxy in the browser) Installable Web Apps (add launch icon to home screen plus control behaviour) Push Notifications (native notifications via web APIs)
  70. For a faster mobile site: Move less bytes Prioritise what you move Move them while no-one is looking Deploy Service Workers etc. Distract the visitor!
  71. Thank You! @andydavies andy.davies@nccgroup.trust http://slideshare.net/andydavies http://www.flickr.com/photos/nzbuu/4093456029

×