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Performance
Optimizing HTTP/2 server push with Fastly
Since we made HTTP/2 generally available in November 2016, h2 traffic has been steadily growing as more customers migrate to the new version of the protocol; since the beginning of 2017, h…
Leveraging the browser cache with Fastly’s CDN
Since a CDN is essentially a cache, you might be tempted to avoid complexity by not making use of the browser cache. However, each cache has its own advantages that the other does not…
The truth about cache hit ratios
One of the most common metrics for evaluating CDN performance is cache hit ratio (CHR). CDN customers have used it for years as a primary indicator of how well a CDN is serving their users…
Introducing the Fastly savings calculator
Our CDN can cache more content than traditional solutions (static as well as rapidly changing, “event-driven” content), offloading traffic that would otherwise go to origin, allowing our…
Google Chrome’s Alex Russell on service workers, PWAs, and what’s next for mobile
At Altitude 2016, Software Engineer Alex Russell discussed the latest projects the “performance obsessed” Google Chrome team had underway. In this recap, we’ll take a look at how you can…
A step towards better Web API authentication
The Fastly API is an integral part of our CDN — using our APIs, customers are able to instantly reflect configuration changes, purge content, and perform anything that is available on the…
A/B testing at the edge
A/B testing is valuable, aggravating, and everyone has an opinion on the best way to do it. At Fastly, we provide a set of tools to help enable experiments you can integrate into your own…
Automating Fastly with Terraform
HashiCorp’s Director of Technical Advocacy discusses Terraform, their tool for building, changing, and versioning infrastructure safely and efficiently, and how they use it to codify Fastly…
Don’t let your successes bring you(r site) down
Often the main goal for marketing and advertising campaigns is to point visitors to your website, and it’s important you’re prepared for the success you’ll (hopefully) see. Hear how Fastly…
Beacon termination at the edge
Using a CDN for beacon termination at the edge has gotten a lot of attention, in part because edge termination for beacons is cool; but it’s mostly because beaconing applications are…
Why having more POPs isn’t always better
We’re often asked why having more POPs doesn’t necessarily make a CDN faster. To help illustrate, we’ll use an analogy of convenience stores versus supermarkets.