SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
a-school.fr
SSL/TLS Certificate
SSL/TLS Certificate for a-school.fr
Valid- Issued by (CA)
- Google Trust Services
- Subject
- a-school.fr
- Valid from
- Jun 14, 2026
- Valid until
- Sep 12, 2026 (46 days remaining)
- Public key
- EC 256-bit
- Serial
- 4DAB8341A3733528133CBA576592BDCA
- SHA-256 fingerprint
- 32:EE:00:C0:0D:21:95:24:3F:42:6C:AE:32:E1:75:E6:DA:CA:A6:E2:7D:99:D5:5F:43:D0:D4:21:EB:5D:63:A7
- Chain
- WE1 → GTS Root R4
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
Never get surprised by a-school.fr's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch a-school.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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