Q: My homepage is up but logins were broken for hours. How do I monitor that?

Q: My homepage is up but logins were broken for hours. How do I monitor that?

A: A 200 on the homepage tells you almost nothing about whether users can actually do things. Set up a transaction check.

— Use a synthetic browser monitor that scripts the real steps: load login page, type test credentials, submit, assert a logged-in element appears.
— Create a dedicated test account that never gets deleted or locked. Document it so nobody touches it.
— Assert on a post-login element (a dashboard greeting), not just the URL changing.
— Run it every 5 minutes, not every 30 seconds, to avoid hammering auth.
— Handle the token/cookie reset between runs so a stale session doesn't fake a pass.

Follow-up: do the same for checkout and search. Those are the flows that quietly break while your homepage looks perfect.

Got a question? Drop it in the comments.