SSL/TLS Certificate Lookup

Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted

SSL/TLS Certificate for mi-gso.company

Valid
Issued by (CA)
Gandi
Subject
mi-gso.company
Valid from
Oct 15, 2026
Valid until
May 1, 2027 (171 days remaining)
Public key
EC 256-bit
Serial
8FA56CAC92F896398B81D894C92214D8
SHA-256 fingerprint
A3:FF:C0:78:36:20:63:9A:70:0A:43:83:6E:12:BC:88:47:FF:08:00:62:C4:2B:92:BF:12:B9:1B:74:B0:D3:02
Chain
Gandi RSA Domain Validation Secure Server CA 4 → Sectigo Public Server Authentication Root R46
Subject Alternative Names (1)
mi-gso.company

Certificate Authority Authorization (CAA)

CAA restricts issuance to digicert.com, sectigo.com; we couldn't map the serving CA (Gandi) to one of these identifiers.

This certificate has been served since Aug 17, 2026.

Never get surprised by mi-gso.company's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch mi-gso.company continuously, notifying you the moment anything moves across all three signals:

Certificate monitor showing the issuer, expiry date, chain status, fingerprint, covered names, and a history of a rotation and an expiry warning

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, CNAME, TXT 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.

Monitor this certificate free

Free for your first domain: uptime, DNS, and certificate together. No credit card.