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 st-p.it

Valid
Issued by (CA)
Actalis S.p.A.
Subject
*.st-p.it
Valid from
Jan 13, 2026
Valid until
Feb 13, 2027 (97 days remaining)
Public key
RSA 2048-bit
Serial
102BB98B0144741E5B5C5B51A525E392
SHA-256 fingerprint
75:F8:C5:6A:75:75:E1:52:1A:0E:A0:07:C9:E9:F8:92:72:30:57:FA:3A:60:38:AF:8A:3D:46:06:F2:12:59:C1
Chain
Actalis Domain Validation Server CA G3 → Actalis Authentication Root CA
Subject Alternative Names (2)
*.st-p.it, st-p.it

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 Oct 28, 2026.

Never get surprised by st-p.it's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch st-p.it 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.