Common SSL Errors and What They Actually Mean
A reference for the exact error codes browsers throw, translated into plain English.
50 guides decoding specific error codes and messages across browsers, developer tools, and platforms — with the fix, not just the explanation.
A reference for the exact error codes browsers throw, translated into plain English.
Your certificate is fine. Something on the page is still loading over plain http://.
Your dashboard says it renewed. The browser disagrees. Here's the mismatch.
curl's error codes are specific enough to point straight at the cause, once you know how to read them.
The same underlying gap — a missing intermediate — showing up as three differently-worded errors.
A handful of commands that answer almost every "why is this certificate broken" question directly.
Browsers are more forgiving than you think — and that forgiveness is hiding a real configuration gap.
A systematic path through the handful of causes that account for nearly every failed renewal.
One server, several sites, and the specific configuration mistake that serves the wrong one.
An extra hop means an extra place for the handshake to fail — narrowing down which one matters most.