SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
add-value.fr
SSL/TLS Certificate
SSL/TLS Certificate for add-value.fr
Valid- Issued by (CA)
- Google Trust Services
- Subject
- add-value.fr
- Valid from
- Aug 15, 2026
- Valid until
- Nov 13, 2026 (52 days remaining)
- Public key
- EC 256-bit
- Serial
- 57400BBB82EE318813046C6CECD19A99
- SHA-256 fingerprint
- 43:F9:C8:0F:1A:19:72:7E:11:4E:04:75:57:23:2B:B9:15:4C:A3:3D:3B:B6:59:61:95:13:EA:A4:F1:D2:BF:27
- Chain
- WE1 → GTS Root R4
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 5, 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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