🙀 A cat explains how HTTPS works...in a comic! 😻

Guide to using HTTP headers for a better web. Learn about HTTPS, HSTS, CSP, Cacheable, immutable resources, serving WebP images, Feature-Policy and more.

Sometimes people want to get a certificate for the hostname “localhost”, either for use in local development, or for distribution with a native application that needs to communicate with a web application. Let’s Encrypt can’t provide certificates for “localhost” because nobody uniquely owns it, and it’s not rooted in a top level domain like “.com” or “.net”. It’s possible to set up your own domain name that happens to resolve to 127.

Some strategies for local testing with SSL

It's finally time: it's time the pendulum swings further towards the "secure by default" end of the scale than what it ever has before. At least insofar as securing web traffic goes because as of this week's Chrome 62's launch, any website with an input box is now doing this when served over an insecure connection: It's not doing it immediately for everyone [https://textslashplain.com/2017/10/18/chrome-field-trials/], but don't worry, it's coming very soon even if it hasn't yet arrived for yo