Guides
HTTPS, TLS and certificates: a practical map
Follow an HTTPS connection from browser to server, and see what certificates protect, what they do not prove, and who keeps each part working.
THE READING ROOM
Guides
Guides
Choosing a certificate for your website
Choose certificate management around your hostnames, renewal needs and support requirements, with free options treated fairly.
Guides
Checking HTTPS after a hosting or domain change
Check DNS, certificate coverage, redirects, page resources and renewal ownership when hosting or domains change.