SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
lex-mar.com
SSL/TLS Certificate
SSL/TLS Certificate for lex-mar.com
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- lex-mar.com
- Valid from
- Aug 3, 2026
- Valid until
- Nov 1, 2026 (56 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 0671F32F83F78A53017EEF57FF160B4578D8
- SHA-256 fingerprint
- 1B:2C:5C:57:01:FE:C6:20:C8:29:FA:E9:96:FC:B5:04:11:B2:A8:C5:6A:05:4B:C5:8A:DB:6F:17:01:3A:6A:B0
- Chain
- YR2 → Root YR → ISRG Root X1
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
This certificate has been served since Aug 22, 2026.
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Uptime
We visit the site from multiple regions worldwide and email you within minutes if it goes down, with a per-region breakdown so a real outage stands out from a regional blip.
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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