SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
sos-data.fr
SSL/TLS Certificate
SSL/TLS Certificate for sos-data.fr
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- sos-data.fr
- Valid from
- Jun 29, 2026
- Valid until
- Sep 27, 2026 (42 days remaining)
- Public key
- EC 256-bit
- Serial
- 05B7EC3CE97E1DFC769F60BB3762051865CB
- SHA-256 fingerprint
- 98:CA:6C:AF:41:D8:5E:5A:2A:10:E8:82:0B:46:FE:AD:E5:87:8E:7E:00:F1:24:DF:13:4D:65:D2:54:CB:1C:42
- Chain
- YE1 → 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 Jul 21, 2026.
Never get surprised by sos-data.fr's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch sos-data.fr continuously, notifying you the moment anything moves across all three signals:
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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