Guides
Practical answers about domain and SSL certificate expiry.
How to check a domain name's expiration date
Three ways to find when a domain expires: RDAP, WHOIS and your registrar, plus why the date you see may not be the whole story.
How to check when an SSL certificate expires
Check an SSL/TLS certificate's expiry date in the browser or with openssl, and how to spot a renewal that has silently failed.
What happens when a domain name expires
The domain expiry timeline: grace period, redemption, pending delete and drop, and what it costs to recover at each stage.
Why Let's Encrypt auto-renewal fails (and how to catch it)
The common reasons a Let's Encrypt certificate stops renewing, how to diagnose each, and how to get warned before visitors see an error.
How agencies track client domain and SSL renewals
A practical system for web agencies and freelancers to keep every client's domain and certificate from expiring.