SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
dk-steel.com
SSL/TLS Certificate
SSL/TLS Certificate for dk-steel.com
Hostname mismatch- Issued by (CA)
- Sectigo Limited
- Subject
- *.gabia.io
- Valid from
- Mar 10, 2026
- Valid until
- Apr 10, 2027 (261 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 886C8F0B1F36355918DD31A9D1457D4B
- SHA-256 fingerprint
- F9:E8:48:21:A8:8C:70:D6:6E:36:69:F3:6D:45:86:55:8C:69:EF:B8:A9:A6:08:38:10:B0:6A:FE:06:92:7D:9A
- Chain
- Sectigo Public Server Authentication CA OV R36 → Sectigo Public Server Authentication Root R46
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
Never get surprised by dk-steel.com's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch dk-steel.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.