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 technica-it.com

Expired
Issued by (CA)
Let's Encrypt
Subject
*.technica-it.com
Valid from
Feb 21, 2026
Valid until
May 22, 2026 (expired 105 days ago)
Public key
RSA 2048-bit
Serial
066B59E50963255D46A66A122728599F5011
SHA-256 fingerprint
99:49:A4:13:03:A6:A3:93:19:E0:AD:FC:F9:13:34:CF:A2:93:E8:F7:D8:D7:C5:03:DD:07:89:A1:CB:02:30:88
Chain
R12 → ISRG Root X1
Subject Alternative Names (2)
*.technica-it.com, technica-it.com

Certificate Authority Authorization (CAA)

No CAA policy is published for this domain — any certificate authority may issue for it.

Never get surprised by technica-it.com's certificate expiring

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