SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
oc-tec.com
SSL/TLS Certificate
SSL/TLS Certificate for oc-tec.com
Self-signed- Issued by (CA)
- Unknown
- Subject
- —
- Valid from
- Mar 5, 2026
- Valid until
- Mar 2, 2036 (3467 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 0
- SHA-256 fingerprint
- 6D:2A:90:07:C8:CF:D8:D1:21:9A:6B:7C:85:5C:90:B3:85:64:1D:0A:3B:0B:72:25:2E:E3:1C:32:46:48:3E:47
- Chain
- —
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 Jul 28, 2026.
Never get surprised by oc-tec.com's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch oc-tec.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.
Free for your first domain: uptime, DNS, and certificate together. No credit card.