SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
top-patents.com
SSL/TLS Certificate
SSL/TLS Certificate for top-patents.com
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- *.top-patents.com
- Valid from
- Oct 18, 2026
- Valid until
- Jan 16, 2027 (61 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 0691973AEBADAA2B54262DA3ED28BDD56C9A
- SHA-256 fingerprint
- A1:64:BA:11:79:4C:EB:4D:5A:46:E6:F2:12:8A:63:AC:BA:42:62:AF:8F:12:31:B2:C6:2B:65:3B:BD:15:9E:94
- 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 20, 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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