SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
say-what-you-mean.com
SSL/TLS Certificate
SSL/TLS Certificate for say-what-you-mean.com
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- autodiscover.say-what-you-mean.com
- Valid from
- Oct 6, 2026
- Valid until
- Jan 4, 2027 (55 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 06BD9425D077313CC68CBCDC41F52F0D0A7B
- SHA-256 fingerprint
- 88:4C:FF:07:30:83:E7:7F:13:0D:7A:16:56:F6:75:7C:DA:67:99:2A:A0:BF:A8:ED:3A:90:0A:C0:0F:67:A9:34
- Chain
- YR1 → Root YR → ISRG Root X1
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
We've observed 1 previous certificate for this host. This certificate has been served since Oct 14, 2026.
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Uptime
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DNS changes
We watch NS, MX, CAA, CNAME, TXT and A/AAAA records, and identify the host, network, and ASN behind them, so a real migration or hijack stands out from routine noise.
TLS certificate
We warn you 30, 14, 7, and 1 days before it expires, and flag it if the issuing authority changes or the certificate is unexpectedly replaced.
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