Check a certificate
One domain, 78 trust stores, under half a minute. No account needed.
Port 443 is assumed. We resolve, handshake and pull the served chain.
Platform scope — all trust stores›
Connecting…
What you get
Pass / fail per platform version78 stores
Failures grouped by root causewhy
Affected versions per failurewho
Concrete fix suggestionshow
Chain & expiry detailfull
Free, then free-er with an account
Anonymous: 5 checks a day. Free account: 10 a day, plus history, sharing and monitor configs. Pro raises it to 500/day with monitoring and API access.
Checking…
· running…
Coverage
share of version-pinned trust stores0
Trust stores checked
0
Trusted
0
Rejected
0
Not verifiable
Why it fails
The certificate
served chain, as observedSubject alternative names
Every store, one by one
Trust stores rebuilt from vendor-published root lists: Apple (iOS 5–26), AOSP (Android 2.3–16), LG webOS, Samsung Tizen, Amazon Fire OS. Verification: OpenSSL chain build against each store, anchored only at that store's roots.