Is crates.io SSL down right now?
This page answers whether crates.io SSL is down by checking the certificate crates.io 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 07:45 UTC. CertPost is not affiliated with crates.io.
Common questions
Is crates.io SSL down right now?
No. At the last check the certificate crates.io serves was valid, and it expires on 2027-02-16. crates.io SSL is up.
How does this page know if crates.io SSL is down?
A CertPost probe opens a real TLS connection to crates.io 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 crates.io 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 crates.io serves. For the full certificate detail, see the crates.io certificate status page.
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