Getting started with testing is not that hard. Here’s a free video taken from the Testing Laravel course that will show you how you can make sure you homepage works.
PHP
Caching get_certificate lookups in Caddy
Mattias open sourced a small Caddy module that caches get_certificate HTTP lookups, avoiding a backend fetch on every TLS handshake. A nice write-up on the problem, the design, and the trade-offs. Read more