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Visualizing website performance

VISUALIZING WEB PERFORMANCE A 1-SECOND DELAY = 07% 011% 016% %3D IN PAGE LOAD TIME 85% LOSS IN CONVERSIONS FEWER PAGE VIEWS DECREASE OF MOBILE USERS expect sites IN CUSTOMER SATISFACTION to load at least as fast or faster than sites on their desktop. IN DOLLAR TERMS, this means that if your site typically earns $100,000 a day, this year you could lose $2.5 MILLIO 57% HAVE HAD A PROBLEM when trying to access a mobile site. in sales. SOURCE: Aberdeen Group HD JPEG SLOW LOAD TIME was the number one issue faced by more than one third of them. CSS CSS Tube JPEG JPEG CSS) CSS EMD CSS O CSS WEB PAGES ARE BIGGER AND MORE COMPLEX THAN EVER. UPEG You ALMOST HALF of these people are unlikely to return to à site that performs poorly. CSS JPEG CSS E Tube HTML CSS </> | k>HD 1995 2010 2012 would go to a 33% COMPETITOR'S SITE NEXT. Then: The average page size was a lean, mean 14.1k, due to the fact that it contained just 2.3 objects. That means just 2.3 calls to whatever data centers were serving the site. Now: The average page size is 498k and contains about 75 objects – everything from CSS to images to Javascript. That means 75 server round trips are needed to pull all the page's resources to the user's browser. The upshot: pages that load slowly and inconsistently. If we follow the current trend, by 2012 we can expect the average page to grow to 684k and contain 83 objects. (Well, not actually It's impossible to have 0.3 calls to the data center. But we're dealing with stats here, hence decimals. Work with me.) [SOURCES: Tealeaf, Gomez] Aol. 100 LOAD TIME 6 0 Visitors in the top ten percentile of site speed viewed 50% more pages than visitors in the bottom ten percentile. SOURCE AOL -2.2 mozilla SECONDS n Made pages 2.2 seconds faster. SECONDS Estimated result: TRAFFIC REVENUE PAGE VIEWS MILLISECONDS LOAD TIME 12 Eshopzilla amazon.com 400 YAHOO! MILLION more Firefox downloads SECONDS Sped up average page load time from 6 seconds to 1.2 seconds. Results: Increased revenue by 12% and page views by 25%. Increased traffic by 9% for every 400 milliseconds of improvement. per year. Increased revenue by 1% for every 100 milliseconds of improvement. $4 MILLISECONDS SOURCE: Yahool SOURCE: Moalla Corporation SOURCE Shopuila SOURCE: Amazon 57% OF ONLINE CONSUMERS will abandon a site after waiting 3 seconds for a page to load. INTERNET USERS HAVE FAULTY PERCEPTIONS OF TIME. 80% of these people WILL NOT RETURN. NOW ACTUAL LATER Of these.. Almost half will go on to tell others about their negative experience. LOAD TIME The average person perceives page load time as being about 15% slower than actual page load time. When recounting their experience to others, they will recall that the page was 35% slower than it actually was. SOURCE PhoCusWiright SOURCE: Sloyan Stefanov, Psychology of Performance strangeloop www.strangeloopnetworks.com VISUALIZING WEB PERFORMANCE A 1-SECOND DELAY = 07% 011% 016% %3D IN PAGE LOAD TIME 85% LOSS IN CONVERSIONS FEWER PAGE VIEWS DECREASE OF MOBILE USERS expect sites IN CUSTOMER SATISFACTION to load at least as fast or faster than sites on their desktop. IN DOLLAR TERMS, this means that if your site typically earns $100,000 a day, this year you could lose $2.5 MILLIO 57% HAVE HAD A PROBLEM when trying to access a mobile site. in sales. SOURCE: Aberdeen Group HD JPEG SLOW LOAD TIME was the number one issue faced by more than one third of them. CSS CSS Tube JPEG JPEG CSS) CSS EMD CSS O CSS WEB PAGES ARE BIGGER AND MORE COMPLEX THAN EVER. UPEG You ALMOST HALF of these people are unlikely to return to à site that performs poorly. CSS JPEG CSS E Tube HTML CSS </> | k>HD 1995 2010 2012 would go to a 33% COMPETITOR'S SITE NEXT. Then: The average page size was a lean, mean 14.1k, due to the fact that it contained just 2.3 objects. That means just 2.3 calls to whatever data centers were serving the site. Now: The average page size is 498k and contains about 75 objects – everything from CSS to images to Javascript. That means 75 server round trips are needed to pull all the page's resources to the user's browser. The upshot: pages that load slowly and inconsistently. If we follow the current trend, by 2012 we can expect the average page to grow to 684k and contain 83 objects. (Well, not actually It's impossible to have 0.3 calls to the data center. But we're dealing with stats here, hence decimals. Work with me.) [SOURCES: Tealeaf, Gomez] Aol. 100 LOAD TIME 6 0 Visitors in the top ten percentile of site speed viewed 50% more pages than visitors in the bottom ten percentile. SOURCE AOL -2.2 mozilla SECONDS n Made pages 2.2 seconds faster. SECONDS Estimated result: TRAFFIC REVENUE PAGE VIEWS MILLISECONDS LOAD TIME 12 Eshopzilla amazon.com 400 YAHOO! MILLION more Firefox downloads SECONDS Sped up average page load time from 6 seconds to 1.2 seconds. Results: Increased revenue by 12% and page views by 25%. Increased traffic by 9% for every 400 milliseconds of improvement. per year. Increased revenue by 1% for every 100 milliseconds of improvement. $4 MILLISECONDS SOURCE: Yahool SOURCE: Moalla Corporation SOURCE Shopuila SOURCE: Amazon 57% OF ONLINE CONSUMERS will abandon a site after waiting 3 seconds for a page to load. INTERNET USERS HAVE FAULTY PERCEPTIONS OF TIME. 80% of these people WILL NOT RETURN. NOW ACTUAL LATER Of these.. Almost half will go on to tell others about their negative experience. LOAD TIME The average person perceives page load time as being about 15% slower than actual page load time. When recounting their experience to others, they will recall that the page was 35% slower than it actually was. SOURCE PhoCusWiright SOURCE: Sloyan Stefanov, Psychology of Performance strangeloop www.strangeloopnetworks.com VISUALIZING WEB PERFORMANCE A 1-SECOND DELAY = 07% 011% 016% %3D IN PAGE LOAD TIME 85% LOSS IN CONVERSIONS FEWER PAGE VIEWS DECREASE OF MOBILE USERS expect sites IN CUSTOMER SATISFACTION to load at least as fast or faster than sites on their desktop. IN DOLLAR TERMS, this means that if your site typically earns $100,000 a day, this year you could lose $2.5 MILLIO 57% HAVE HAD A PROBLEM when trying to access a mobile site. in sales. SOURCE: Aberdeen Group HD JPEG SLOW LOAD TIME was the number one issue faced by more than one third of them. CSS CSS Tube JPEG JPEG CSS) CSS EMD CSS O CSS WEB PAGES ARE BIGGER AND MORE COMPLEX THAN EVER. UPEG You ALMOST HALF of these people are unlikely to return to à site that performs poorly. CSS JPEG CSS E Tube HTML CSS </> | k>HD 1995 2010 2012 would go to a 33% COMPETITOR'S SITE NEXT. Then: The average page size was a lean, mean 14.1k, due to the fact that it contained just 2.3 objects. That means just 2.3 calls to whatever data centers were serving the site. Now: The average page size is 498k and contains about 75 objects – everything from CSS to images to Javascript. That means 75 server round trips are needed to pull all the page's resources to the user's browser. The upshot: pages that load slowly and inconsistently. If we follow the current trend, by 2012 we can expect the average page to grow to 684k and contain 83 objects. (Well, not actually It's impossible to have 0.3 calls to the data center. But we're dealing with stats here, hence decimals. Work with me.) [SOURCES: Tealeaf, Gomez] Aol. 100 LOAD TIME 6 0 Visitors in the top ten percentile of site speed viewed 50% more pages than visitors in the bottom ten percentile. SOURCE AOL -2.2 mozilla SECONDS n Made pages 2.2 seconds faster. SECONDS Estimated result: TRAFFIC REVENUE PAGE VIEWS MILLISECONDS LOAD TIME 12 Eshopzilla amazon.com 400 YAHOO! MILLION more Firefox downloads SECONDS Sped up average page load time from 6 seconds to 1.2 seconds. Results: Increased revenue by 12% and page views by 25%. Increased traffic by 9% for every 400 milliseconds of improvement. per year. Increased revenue by 1% for every 100 milliseconds of improvement. $4 MILLISECONDS SOURCE: Yahool SOURCE: Moalla Corporation SOURCE Shopuila SOURCE: Amazon 57% OF ONLINE CONSUMERS will abandon a site after waiting 3 seconds for a page to load. INTERNET USERS HAVE FAULTY PERCEPTIONS OF TIME. 80% of these people WILL NOT RETURN. NOW ACTUAL LATER Of these.. Almost half will go on to tell others about their negative experience. LOAD TIME The average person perceives page load time as being about 15% slower than actual page load time. When recounting their experience to others, they will recall that the page was 35% slower than it actually was. SOURCE PhoCusWiright SOURCE: Sloyan Stefanov, Psychology of Performance strangeloop www.strangeloopnetworks.com VISUALIZING WEB PERFORMANCE A 1-SECOND DELAY = 07% 011% 016% %3D IN PAGE LOAD TIME 85% LOSS IN CONVERSIONS FEWER PAGE VIEWS DECREASE OF MOBILE USERS expect sites IN CUSTOMER SATISFACTION to load at least as fast or faster than sites on their desktop. IN DOLLAR TERMS, this means that if your site typically earns $100,000 a day, this year you could lose $2.5 MILLIO 57% HAVE HAD A PROBLEM when trying to access a mobile site. in sales. SOURCE: Aberdeen Group HD JPEG SLOW LOAD TIME was the number one issue faced by more than one third of them. CSS CSS Tube JPEG JPEG CSS) CSS EMD CSS O CSS WEB PAGES ARE BIGGER AND MORE COMPLEX THAN EVER. UPEG You ALMOST HALF of these people are unlikely to return to à site that performs poorly. CSS JPEG CSS E Tube HTML CSS </> | k>HD 1995 2010 2012 would go to a 33% COMPETITOR'S SITE NEXT. Then: The average page size was a lean, mean 14.1k, due to the fact that it contained just 2.3 objects. That means just 2.3 calls to whatever data centers were serving the site. Now: The average page size is 498k and contains about 75 objects – everything from CSS to images to Javascript. That means 75 server round trips are needed to pull all the page's resources to the user's browser. The upshot: pages that load slowly and inconsistently. If we follow the current trend, by 2012 we can expect the average page to grow to 684k and contain 83 objects. (Well, not actually It's impossible to have 0.3 calls to the data center. But we're dealing with stats here, hence decimals. Work with me.) [SOURCES: Tealeaf, Gomez] Aol. 100 LOAD TIME 6 0 Visitors in the top ten percentile of site speed viewed 50% more pages than visitors in the bottom ten percentile. SOURCE AOL -2.2 mozilla SECONDS n Made pages 2.2 seconds faster. SECONDS Estimated result: TRAFFIC REVENUE PAGE VIEWS MILLISECONDS LOAD TIME 12 Eshopzilla amazon.com 400 YAHOO! MILLION more Firefox downloads SECONDS Sped up average page load time from 6 seconds to 1.2 seconds. Results: Increased revenue by 12% and page views by 25%. Increased traffic by 9% for every 400 milliseconds of improvement. per year. Increased revenue by 1% for every 100 milliseconds of improvement. $4 MILLISECONDS SOURCE: Yahool SOURCE: Moalla Corporation SOURCE Shopuila SOURCE: Amazon 57% OF ONLINE CONSUMERS will abandon a site after waiting 3 seconds for a page to load. INTERNET USERS HAVE FAULTY PERCEPTIONS OF TIME. 80% of these people WILL NOT RETURN. NOW ACTUAL LATER Of these.. Almost half will go on to tell others about their negative experience. LOAD TIME The average person perceives page load time as being about 15% slower than actual page load time. When recounting their experience to others, they will recall that the page was 35% slower than it actually was. SOURCE PhoCusWiright SOURCE: Sloyan Stefanov, Psychology of Performance strangeloop www.strangeloopnetworks.com VISUALIZING WEB PERFORMANCE A 1-SECOND DELAY = 07% 011% 016% %3D IN PAGE LOAD TIME 85% LOSS IN CONVERSIONS FEWER PAGE VIEWS DECREASE OF MOBILE USERS expect sites IN CUSTOMER SATISFACTION to load at least as fast or faster than sites on their desktop. IN DOLLAR TERMS, this means that if your site typically earns $100,000 a day, this year you could lose $2.5 MILLIO 57% HAVE HAD A PROBLEM when trying to access a mobile site. in sales. SOURCE: Aberdeen Group HD JPEG SLOW LOAD TIME was the number one issue faced by more than one third of them. CSS CSS Tube JPEG JPEG CSS) CSS EMD CSS O CSS WEB PAGES ARE BIGGER AND MORE COMPLEX THAN EVER. UPEG You ALMOST HALF of these people are unlikely to return to à site that performs poorly. CSS JPEG CSS E Tube HTML CSS </> | k>HD 1995 2010 2012 would go to a 33% COMPETITOR'S SITE NEXT. Then: The average page size was a lean, mean 14.1k, due to the fact that it contained just 2.3 objects. That means just 2.3 calls to whatever data centers were serving the site. Now: The average page size is 498k and contains about 75 objects – everything from CSS to images to Javascript. That means 75 server round trips are needed to pull all the page's resources to the user's browser. The upshot: pages that load slowly and inconsistently. If we follow the current trend, by 2012 we can expect the average page to grow to 684k and contain 83 objects. (Well, not actually It's impossible to have 0.3 calls to the data center. But we're dealing with stats here, hence decimals. Work with me.) [SOURCES: Tealeaf, Gomez] Aol. 100 LOAD TIME 6 0 Visitors in the top ten percentile of site speed viewed 50% more pages than visitors in the bottom ten percentile. SOURCE AOL -2.2 mozilla SECONDS n Made pages 2.2 seconds faster. SECONDS Estimated result: TRAFFIC REVENUE PAGE VIEWS MILLISECONDS LOAD TIME 12 Eshopzilla amazon.com 400 YAHOO! MILLION more Firefox downloads SECONDS Sped up average page load time from 6 seconds to 1.2 seconds. Results: Increased revenue by 12% and page views by 25%. Increased traffic by 9% for every 400 milliseconds of improvement. per year. Increased revenue by 1% for every 100 milliseconds of improvement. $4 MILLISECONDS SOURCE: Yahool SOURCE: Moalla Corporation SOURCE Shopuila SOURCE: Amazon 57% OF ONLINE CONSUMERS will abandon a site after waiting 3 seconds for a page to load. INTERNET USERS HAVE FAULTY PERCEPTIONS OF TIME. 80% of these people WILL NOT RETURN. NOW ACTUAL LATER Of these.. Almost half will go on to tell others about their negative experience. LOAD TIME The average person perceives page load time as being about 15% slower than actual page load time. When recounting their experience to others, they will recall that the page was 35% slower than it actually was. SOURCE PhoCusWiright SOURCE: Sloyan Stefanov, Psychology of Performance strangeloop www.strangeloopnetworks.com VISUALIZING WEB PERFORMANCE A 1-SECOND DELAY = 07% 011% 016% %3D IN PAGE LOAD TIME 85% LOSS IN CONVERSIONS FEWER PAGE VIEWS DECREASE OF MOBILE USERS expect sites IN CUSTOMER SATISFACTION to load at least as fast or faster than sites on their desktop. IN DOLLAR TERMS, this means that if your site typically earns $100,000 a day, this year you could lose $2.5 MILLIO 57% HAVE HAD A PROBLEM when trying to access a mobile site. in sales. SOURCE: Aberdeen Group HD JPEG SLOW LOAD TIME was the number one issue faced by more than one third of them. CSS CSS Tube JPEG JPEG CSS) CSS EMD CSS O CSS WEB PAGES ARE BIGGER AND MORE COMPLEX THAN EVER. UPEG You ALMOST HALF of these people are unlikely to return to à site that performs poorly. CSS JPEG CSS E Tube HTML CSS </> | k>HD 1995 2010 2012 would go to a 33% COMPETITOR'S SITE NEXT. Then: The average page size was a lean, mean 14.1k, due to the fact that it contained just 2.3 objects. That means just 2.3 calls to whatever data centers were serving the site. Now: The average page size is 498k and contains about 75 objects – everything from CSS to images to Javascript. That means 75 server round trips are needed to pull all the page's resources to the user's browser. The upshot: pages that load slowly and inconsistently. If we follow the current trend, by 2012 we can expect the average page to grow to 684k and contain 83 objects. (Well, not actually It's impossible to have 0.3 calls to the data center. But we're dealing with stats here, hence decimals. Work with me.) [SOURCES: Tealeaf, Gomez] Aol. 100 LOAD TIME 6 0 Visitors in the top ten percentile of site speed viewed 50% more pages than visitors in the bottom ten percentile. SOURCE AOL -2.2 mozilla SECONDS n Made pages 2.2 seconds faster. SECONDS Estimated result: TRAFFIC REVENUE PAGE VIEWS MILLISECONDS LOAD TIME 12 Eshopzilla amazon.com 400 YAHOO! MILLION more Firefox downloads SECONDS Sped up average page load time from 6 seconds to 1.2 seconds. Results: Increased revenue by 12% and page views by 25%. Increased traffic by 9% for every 400 milliseconds of improvement. per year. Increased revenue by 1% for every 100 milliseconds of improvement. $4 MILLISECONDS SOURCE: Yahool SOURCE: Moalla Corporation SOURCE Shopuila SOURCE: Amazon 57% OF ONLINE CONSUMERS will abandon a site after waiting 3 seconds for a page to load. INTERNET USERS HAVE FAULTY PERCEPTIONS OF TIME. 80% of these people WILL NOT RETURN. NOW ACTUAL LATER Of these.. Almost half will go on to tell others about their negative experience. LOAD TIME The average person perceives page load time as being about 15% slower than actual page load time. When recounting their experience to others, they will recall that the page was 35% slower than it actually was. SOURCE PhoCusWiright SOURCE: Sloyan Stefanov, Psychology of Performance strangeloop www.strangeloopnetworks.com

Visualizing website performance

shared by TammyEverts on Sep 29
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Websites have changed radically in the past 15 years, and these changes have had a powerful effect on how people use the web. To help visualize these changes, Strangeloop created this set of infograph...

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