SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
altura.fr
SSL/TLS Certificate
SSL/TLS Certificate for altura.fr
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- altura.fr
- Valid from
- Aug 10, 2026
- Valid until
- Nov 8, 2026 (66 days remaining)
- Public key
- EC 256-bit
- Serial
- 06A21279C77EDB152A283EC5DBB31455E86E
- SHA-256 fingerprint
- 1B:28:AD:C9:D7:05:9C:C6:CF:47:2B:76:5B:64:67:CA:71:50:46:58:5D:16:7C:33:8F:89:24:ED:E6:A3:07:B2
- Chain
- YE2 → Root YE → ISRG Root X2 → 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 Sep 2, 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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