Server-sent events allow web servers to push real-time event notifications to the browser on a long-lived HTTP response. It's a beautiful part of the web platform that’s severely underused…
You can use the Vary response header in creative ways, including A/B testing and internationalization. At the same time, many people still use Vary badly or misunderstand what it does; in…
Subscribe to our newsletter
Get the latest news and industry insights in your inbox.
Get a Fastly demo
Get in touch or create an account.