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Page speed optimisation: No more fake CDNs!

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This presentation is useful for anyone looking into speeding up your website or simply want to know more about this subject.
It covers:
- What is a CDN.
- How a CDN helps SEO.
- How SEOs use CDNs.
- How to stop relying on fake CDNs.

As SEO specialists, we all want to achieve better ranking in the SERPs. Even with Google's recent design changes with paid listings, a lot of businesses still rely a lot on organic search as it is still proving to drive results on a daily basis.

Besides creating relevant useful and original content, trustworthiness, backlinks, and other authority signals, speeding up your website is a great way to help Google index your site faster and rank higher. Implementing a content delivery network (CDN) is often seen by SEOs as easy way to see faster speeds and help improve your SEO.

However this presentation demonstrates that with HTTP2 the use of fake CDNs is no longer necessary.

View the slides to learn more.

Published in: Internet
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Page speed optimisation: No more fake CDNs!

  1. 1. © 2019 Delete @POLLY_P #TECHSEOSUMMAT Page Speed optimisation: no more fake CDNs! POLLY POSPELOVA // DELETE
  2. 2. @POLLY_P #TECHSEOSUMMAT 1. What is a CDN. 2. How a CDN helps SEO. 3. How SEOs use CDNs. 4. How to stop relying on fake CDNs. What We’ll Cover.
  3. 3. @POLLY_P #TECHSEOSUMMAT As SEOs, we all want to achieve better ranking in the SERPs.
  4. 4. @POLLY_P #TECHSEOSUMMAT • Relevant, useful and original content • Trustworthiness • Backlink factors • Brand Signals • Low page loading time • Site speed
  5. 5. @POLLY_P #TECHSEOSUMMAT What is a CDN?
  6. 6. © Copyright 2019 Delete @POLLY_P #TECHSEOSUMMAT
  7. 7. @POLLY_P #TECHSEOSUMMAT How does a CDN help SEO?
  8. 8. @POLLY_P #TECHSEOSUMMAT 1. Speed is a ranking factor.
  9. 9. @POLLY_P #TECHSEOSUMMAT 2. Speed effects bounce rate and conversions.
  10. 10. @POLLY_P #TECHSEOSUMMAT 3. Speed effects revenue.
  11. 11. @POLLY_P #TECHSEOSUMMAT How SEOs use CDNs.
  12. 12. @POLLY_P #TECHSEOSUMMAT Fake CDNs.
  13. 13. © Copyright 2019 Delete @POLLY_P #TECHSEOSUMMAT HTTP/1
  14. 14. © Copyright 2019 Delete @POLLY_P #TECHSEOSUMMAT c
  15. 15. © Copyright 2019 Delete @POLLY_P #TECHSEOSUMMAT 140 / 6 ≈ 23
  16. 16. © Copyright 2019 Delete @POLLY_P #TECHSEOSUMMAT HTTP/1 Connections Limit Browser Version Connections Per Hostname Max Connections Chrome 34/32 6 10 IE9 6 35 IE10 8 17 IE11 13 17 Firefox 27/26 6 17 Safari 7.0.1 6 17 Chrome Mobile 6 16 IE Mobile 9 6 60 Source: http://www.browserscope.org/?category=network&v=top
  17. 17. @POLLY_P #TECHSEOSUMMAT Fake CDNs example: https://old.deleteagency.com
  18. 18. © Copyright 2019 Delete @POLLY_P #TECHSEOSUMMAT
  19. 19. © Copyright 2019 Delete @POLLY_P #TECHSEOSUMMAT
  20. 20. © Copyright 2019 Delete @POLLY_P #TECHSEOSUMMAT
  21. 21. @POLLY_P #TECHSEOSUMMAT Render-blocking resources. BRIGHTONSEO
  22. 22. © Copyright 2019 Delete @POLLY_P #TECHSEOSUMMAT CDN can drastically increase the speed of your website, but it doesn’t solve render- blocking resources issues. If you have a lot of render-blocking resources, you might still experience delays.
  23. 23. © Copyright 2019 Delete @POLLY_P #TECHSEOSUMMAT c
  24. 24. © Copyright 2019 Delete @POLLY_P #TECHSEOSUMMAT Abrowser doesn’tstart rendering apageuntilitloads andparsesallresources.
  25. 25. © Copyright 2019 Delete @POLLY_P #TECHSEOSUMMAT We only take the necessary resources (JS, CSS) for a page and then inline them into HTML markup, in a <head> tag. c
  26. 26. © Copyright 2019 Delete @POLLY_P #TECHSEOSUMMAT After theinlinemarkuploads, wethenload allthe necessaryresourcesin thebackgroundand cachethem.
  27. 27. © Copyright 2019 Delete @POLLY_P #TECHSEOSUMMAT We check if the browser already has the resources cached and we skip inlining.
  28. 28. © Copyright 2019 Delete @POLLY_P #TECHSEOSUMMAT The content loads instantly on the first and all subsequent loads.
  29. 29. @POLLY_P #TECHSEOSUMMAT HTTP/2.
  30. 30. © Copyright 2019 Delete @POLLY_P #TECHSEOSUMMAT HTTP/1 HTTP/2
  31. 31. © Copyright 2019 Delete @POLLY_P #TECHSEOSUMMAT No more fake CDNs.
  32. 32. @POLLY_P #TECHSEOSUMMAT 1. Stream multiplexing. 2. Explicit stream dependencies. 3. Server Push. 4. HPACK (the silent killer feature).
  33. 33. © Copyright 2019 Delete @POLLY_P #TECHSEOSUMMAT Multiplexing is a method by which multiple HTTP requests can be sent and responses can be received asynchronously via a single connection. Multiplexing is the heart of HTTP/2 protocol. Stream multiplexing.
  34. 34. © Copyright 2019 Delete @POLLY_P #TECHSEOSUMMAT A browser can assign a priority for a new stream by including prioritisation information in the HEADERS. Explicit stream dependencies.
  35. 35. © Copyright 2019 Delete @POLLY_P #TECHSEOSUMMAT Server Push enables websites speculatively deliver content to the web browser before the browser sends a request for it. Server Push.
  36. 36. © Copyright 2019 Delete @POLLY_P #TECHSEOSUMMAT HTTP/2 supports a new dedicated header compression algorithm, called HPACK. HPACK.
  37. 37. @POLLY_P #TECHSEOSUMMAT No more fake CDNs example: https://www.deleteagency.com
  38. 38. © Copyright 2019 Delete @POLLY_P #TECHSEOSUMMAT
  39. 39. © Copyright 2019 Delete @POLLY_P #TECHSEOSUMMAT
  40. 40. © Copyright 2019 Delete @POLLY_P #TECHSEOSUMMAT
  41. 41. @POLLY_P #TECHSEOSUMMAT You can't do it alone!
  42. 42. © Copyright 2019 Delete @POLLY_P #TECHSEOSUMMAT Thank you.

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