Mastering the CDN Present & Future
summary
Explains how CDNs cut the 300 ms geographic tax by serving local caches from global points of presence, and shows concrete Drupal integrations: cache tags (in D8 core!) for selective invalidation (avoids cache stampedes on sites with tens of thousands of pages), image resizing and HTTP/2 multiplexing at the edge for subsecond loads, TLS and WAF integration, grace mode to serve last-known-good pages during origin failures, and that Pantheon already bundles a CDN per site.
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chapters (26)
- 0:00Introduction
- 1:40The Drupal Community
- 4:40What is a CDN
- 5:33The magic of a CDN
- 7:06How a CDN works
- 8:20Centralized CDNs
- 8:37Pantheon Bundle
- 9:20Where is my origin
- 10:14Performance
- 11:06Cache Invalidation
- 11:33Cache Tag System
- 12:01Cache Tags
- 12:58Invalidation
- 14:20Drupal Cache Tags
- 14:46Optimizing Images
- 16:23Personalization
- 17:18Load Balancing Uptime
- 18:06Security
- 18:34Firewall
- 19:10Grace Mode
- 20:19Domain Masking
- 20:49HTTP II
- 21:20CDN Performance
- 21:42HTTP 2 Performance
- 22:16The Future Should Be Fast
- 22:26Embracing CDNs
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