Taming 3rd party content

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Sergey Chernyshev presents about reducing the harm caused by these tools and best practices for consumers as well as creators of such 3rd party content.

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Taming 3rd party content

  1. 1. Taming 3rd party content
  2. 2. What's third party? "Loaded from another server..." - Sergey Chernyshev
  3. 3. All over your site
  4. 4. <script> Easy to integrate! Easy to update! Easy to grab user info!
  5. 5. </script> Blocks rendering! Depends on their servers! Security & privacy risk!
  6. 6. SLO-JS Single Line Of JavaScript
  7. 7. Ads • Pay bills ($$$) • Chain of brokers • Rich (heavy) content • Need lots of user data
  8. 8. Ads: how bad is it? • document.write (blocks, can't be post loaded) • Sometimes up to 7 nested wrappers, more then 20 requests • Fail rarely, but block the whole site
  9. 9. Ads: Solutions! • Load after content is loaded • Use IFrames • Don't use 3rd party engines
  10. 10. Widgets • Free content or functionality • Use JS for everything • Rarely cache • More complexity for your site
  11. 11. Widgets: how bad? • Varies dramatically • Less reliable then ad networks
  12. 12. Widgets: Solutions! • Find more static (or flash) version • Rewrite using their AJAX API • Use any API and assemble on back end, cache
  13. 13. Trackers • Show what's going on • Need lots of user data • Delay load event (a little)
  14. 14. Trackers: what to do? • Not so bad. Not much you can do either. • Use async version if exists (Google Analytics)
  15. 15. When YOU develop widgets! • Don't use document.write! • HTML placeholder, async code & data • Cache JS code (in the browser) • Cache all or part of the data (know your TTLS) • Provide static alternative to SLO-JS (image / HTML to download / flash)

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