SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
lesemis-strasbourg.fr
SSL/TLS Certificate
SSL/TLS Certificate for lesemis-strasbourg.fr
Valid- Issued by (CA)
- Google Trust Services
- Subject
- lesemis-strasbourg.fr
- Valid from
- Jul 9, 2026
- Valid until
- Oct 7, 2026 (76 days remaining)
- Public key
- RSA 2048-bit
- Serial
- A9F561C1918A0D0A1351A3B73B6A0FCD
- SHA-256 fingerprint
- 22:BB:6A:59:70:61:EE:83:A5:E5:67:62:9E:B4:2F:F5:EE:1C:56:C0:18:06:2B:E0:85:C3:27:D9:6E:E8:3B:46
- Chain
- WR1 → GTS Root R1
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
Never get surprised by lesemis-strasbourg.fr's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch lesemis-strasbourg.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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