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Andrew Betts

Web Developer and Principal Developer Advocate
June 10

Prevent application and network instability by serving stale content

Serving stale content not only lets you deliver the content users want more often, but also deliver predictable, professional, and helpful error content when origin servers cannot be reached…

March 17

Purging Fastly using GCP cloud functions

When using Fastly in front of Google Cloud Storage, cloud functions can enable purging of Fastly’s edge cloud platform instantly and selectively to ensure content updates are seen by users…

February 25

Better VCL for more maintainable Fastly configurations

Over the last eight years of providing a platform for coding at the edge, we've learned a lot about common patterns, as well as common mistakes and risky code. Best practices in Fastly VCL…

January 6

17 new solutions to Build on Fastly

Since the August launch of Build on Fastly, our developer library, we have been quietly adding many new solutions: beacon termination, geofencing, numerous flavours of load balancing, and…

December 19, 2019

Testing your Fastly config in CI

Many customers now upload their CDN configuration as part of their continuous deployment process. That means you need to be able to automate testing too. Here’s how.

December 11, 2019

Improve cache performance with optimized API design

Contrary to belief, caching API responses isn't that hard, and can help cache performance. Here, we look at some specific use cases across publishing, e-commerce, and travel and hospitality.

October 24, 2019

Improving your search engine ranking (SEO) with Fastly

SEO is a murky science, with search engines striving to present the best possible result, and everyone else trying to figure out what "best" means in practice. What we do know is that…

October 8, 2019

Introducing scripted testing for Fastly fiddle

Fastly Fiddle allows for instant experimentation with Fastly's edge cloud behaviours without having to set up a Fastly account. Now, we're adding the ability to define assertions to specify…

June 11, 2019

Defend against credential stuffing attacks with proof of work

With attackers using publicly available lists of compromised passwords in an attempt to steal accounts, proof of work is a good way to slow the attackers down.

April 5, 2019

Feature policy: the web's missing guardrails

Over almost 30 years of its life, the web has grown beyond anyone's imagination, and the platform has become immensely powerful and flexible. With that power and flexibility comes complexity…

November 28, 2018

Testing new ideas with Fastly Fiddle

Quickly experiment, debug and try out ideas on Fastly's platform, without signing up, or even logging in.

August 16, 2018

Patterns for authentication at the edge

Identity is a boring, but necessary element of most website builds. Validating a user’s identity and access rights is something that is in the critical performance path, required site-wide…