Is Linear SSL down right now?
This page answers whether Linear SSL is down by checking the certificate linear.app serves, live and from outside, rechecked every hour. Most "is it down" pages ping the homepage; a broken or expired certificate is a different failure, and it is the one this page watches.
Last checked 2026-09-20 07:44 UTC. CertPost is not affiliated with Linear.
Common questions
Is Linear SSL down right now?
No. At the last check the certificate linear.app serves was valid, and it expires on 2026-12-14. Linear SSL is up.
How does this page know if Linear SSL is down?
A CertPost probe opens a real TLS connection to linear.app on port 443, the same way a browser does, and reads the certificate. The result is cached and rechecked every hour, so this reflects the healthy state seen at the last check, not a guess.
Is this the same as Linear being down?
Not always. A site can be reachable while its certificate is broken, or down for reasons unrelated to SSL. This page measures only the certificate linear.app serves. For the full certificate detail, see the Linear certificate status page.
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