SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
a-bloc.fr
SSL/TLS Certificate
SSL/TLS Certificate for a-bloc.fr
Valid- Issued by (CA)
- Sectigo Limited
- Subject
- *.a-bloc.fr
- Valid from
- May 3, 2026
- Valid until
- Nov 13, 2026 (72 days remaining)
- Public key
- RSA 2048-bit
- Serial
- B4A374591E6CAA548FBCE720CF6B71D6
- SHA-256 fingerprint
- CD:EE:2C:92:D4:69:70:F2:07:48:22:FB:A4:64:A7:E1:4E:E8:A2:5D:65:2E:E9:D8:D8:3C:99:C9:E3:6F:77:07
- Chain
- Sectigo Public Server Authentication CA DV R36 → Sectigo Public Server Authentication Root R46 → USERTrust RSA Certification Authority
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 6, 2026.
Never get surprised by a-bloc.fr's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch a-bloc.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.
Free for your first domain: uptime, DNS, and certificate together. No credit card.