1. How Real User Monitoring Reduces 3rd Party Content Risk Webinar

2. Cliff Crocker VP Product - mPulse Real User Measurement 3. T O D AY W E W I L L C O V E R The impact of third-party resources on your site How to measure third-parties effectively Defining SLAs Reporting on third-party performance 4. S T E V E S O U D E R S W E B P E R F O R M A N C E G O L D E N R U L E 80% of time is spent on the front-end. 5. W H AT Y O U S E E , stylesheets Images & other media Display ads Product reviews and recommendations Personalization and placement Social media widgets 6. Pay no attention to the man behind the curtain! W H AT Y O U D O N T S E E Web analytics & marketing Tracking & targeting User experience measurement (CEM & RUM) Tag management 7. Top 25 retail sites from Alexa Examined Home page for each site using WebPagetest.org Focused on the number of third-party domains 3 R D PA R T Y S T U D Y 8. 3 R D PA R T Y S T U D Y 9. Primary Domain: Within the control of the site owner such as origin, image domains (CDN included) 3rd Party Domain: Hosted by a provider outside of the control of the site owner 3 R D PA R T Y S T U D Y 10. Domains Alexa Ranking 31 10 35 23 86 41 20 37 303131 4 48 38 42 16 11 6 28 68 31 36 4 198 212513351122532432351 7 3 7 17 Primary domains 3rd Party domains 3 R D PA R T Y S T U D Y - U N I Q U E D O M A I N S P E R PA G E Domains: Median - 32 Min - 25 Max - 87 11. 3 R D PA R T Y S T U D Y Compared to the HTTPArchive (All Sites) - average number of domains is 17!! 12. 91% 9% 91% of domains are 3rd parties 3 R D PA R T Y S T U D Y 13. Front-end single point of failure occurs when a document loads, but is blocked by a resource that fails (in this case third-party) causing the entire site to stop loading (simulation) 14. F R O N T- E N D S I N G L E P O I N T O F FA I L U R E 15. 1 5 O F 2 5 L A R G E S T O N L I N E R E TA I L E R S H AV E A F R O N T- E N D S I N G L E P O I N T O F FA I L U R E 40% 12% 48% Critical Non-Critical None 60% have a 3rd party front-end SPOF 16. T E S T I N G Y O U R S E L F F O R 3 R D PA R T Y F R O N T- E N D S P O F SPOF-O-MATIC & WebPagetest D E M O 17. O B J E C T L E V E L R U M Advances in browser technology make it possible to collect performance at the object level from end users Resource Timing - supported in mainstream browsers such as Chrome, IE, Android, Opera 18. R E S O U R C E T I M I N G For each request, it is possible to capture timing below http://www.w3.org/TR/resource-timing/ 19. R E S O U R C E T I M I N G With one exception: Cross-origin requests (such as third-party content) Request Start and End only by default Unless: Timing-Allow-Origin:* response header is added