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 ad3d.it

Valid
Issued by (CA)
Actalis S.p.A.
Subject
*.ad3d.it
Valid from
Aug 3, 2026
Valid until
Feb 18, 2027 (131 days remaining)
Public key
RSA 2048-bit
Serial
307B66E7C7B1A8A22433649825464331
SHA-256 fingerprint
5C:0A:67:F8:07:03:2B:18:22:2D:4F:16:59:83:40:F1:3A:6E:CC:E7:F9:81:78:4D:47:26:39:39:0E:64:06:BB
Chain
Actalis Domain Validated TLS Server RSA CA 2025 → Actalis TLS Server RSA Root CA 2025 → Actalis Authentication Root CA
Subject Alternative Names (2)
*.ad3d.it, ad3d.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 10, 2026.

Never get surprised by ad3d.it's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch ad3d.it 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.

Monitor this certificate free

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