SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
reg-check.com
SSL/TLS Certificate
SSL/TLS Certificate for reg-check.com
Expired- Issued by (CA)
- Let's Encrypt
- Subject
- reg-check.com
- Valid from
- May 26, 2024
- Valid until
- Aug 24, 2024 (expired 762 days ago)
- Public key
- EC 256-bit
- Serial
- 03E146B2538643038250DED0C2A349D6515E
- SHA-256 fingerprint
- B4:EC:4D:87:98:17:90:C8:36:97:B8:7B:CC:7B:34:48:C7:19:29:9D:76:B3:17:11:46:A5:50:F9:AE:C0:AD:41
- Chain
- R3 → ISRG Root X1
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
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Uptime
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DNS changes
We watch NS, MX, CAA, DNSSEC, CNAME 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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