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July 6, 2020

Cache-Control in the wild

The Cache-Control response header is one of HTTP’s more widely known header fields; it allows a site to control how caches handle their data in CDNs, browsers, and elsewhere. This post digs into how it’s…

June 30, 2020

Leveling up observability with Compute@Edge

Observability is hard. Distributed systems, dev and testing environments, and outside vendors all complicate the problem. With Compute@Edge, Fastly wants to make observability easier. Here’s what we’re doing.

June 29, 2020

TLS 1.3 is faster, more robust, and now available

TLS 1.3 is now available for Fastly customers. The newest version of the TLS protocol, TLS 1.3 is designed to improve the performance and security of traffic served over HTTPS.

June 29, 2020

Performance matters: why Compute@Edge does not yet support JavaScript

Building our own compiler toolchain allows Compute@Edge to be both performant and secure. It also means we have to bring developers’ most-loved language into the fold in the right way.

June 26, 2020

Improving HTTP with structured header fields

The HTTP community has been busy modernizing the web’s protocol over the last decade, with multiple revisions of the core specification, a number of extensions, HTTP/2, and now HTTP/3. Unfortunately, the way we define and…

June 22, 2020

Network error logging: collecting failure conditions from end users

Network error logging reports client-side failures and successes, enabling developers to understand how their sites function in the real world and how they might improve performance. In this post, we’ll explore the NEL framework, how…

June 18, 2020

Reflecting on our inclusion and diversity journey

There’s been an outpouring of corporate statements supporting Black Lives Matter over the past few weeks— but statements of solidarity don’t matter unless they are backed by action designed to create real change. We’re taking…

June 17, 2020

100 Tbps of capacity: how scale allows us to meet today’s digital demands

The growth of our global network allows us to stand at the ready with our customers, supporting and protecting their innovations at the edge.

June 16, 2020

A standard cryptography API for WebAssembly

In this post we will describe the motivations for a standard WebAssembly cryptography API, the challenges of designing such an API for this programming language, and the work Fastly has contributed so far.

June 10, 2020

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.

June 8, 2020

Life at Fastly: a business continuity plan led by people, process, and technology

Our unique approach to business continuity planning focuses not just on ensuring that our systems remain operations, but also that our processes and people have the backup and support they need. Here’s a template to…

June 3, 2020

Google’s Core Web Vitals: ensuring your site is ready for Google’s next major update

Google recently announced three new metrics they’re calling Core Web Vitals that can impact your search rankings. We’ll walk you through what each one means and how one of them can be improved by your…

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