SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
judithflacke.com
SSL/TLS Certificate
SSL/TLS Certificate for judithflacke.com
Expiring soon- Issued by (CA)
- Let's Encrypt
- Subject
- judithflacke.com
- Valid from
- May 21, 2026
- Valid until
- Aug 19, 2026 (21 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 05B0E9DBA192D5E416213D1D9FBC917F9CA4
- SHA-256 fingerprint
- A3:87:68:B5:3F:43:36:CB:41:5E:6E:FA:6F:00:0B:B9:A5:DF:FC:A6:13:3C:67:B6:D3:92:FC:9B:CC:57:25:D9
- Chain
- R12 → ISRG Root X1
Certificate Authority Authorization (CAA)
The serving CA (Let's Encrypt) is authorized by this domain's CAA records (letsencrypt.org).
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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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