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 selengineering.com

Valid
Issued by (CA)
Starfield Technologies, Inc.
Subject
selengineering.com
Valid from
May 29, 2026
Valid until
Dec 13, 2026 (140 days remaining)
Public key
RSA 2048-bit
Serial
3F80C0BE1E52341C
SHA-256 fingerprint
C6:B0:AB:F9:98:D1:45:5E:54:8D:48:90:2B:42:78:BB:A8:89:2F:E7:87:D1:07:5B:9E:CC:DA:64:E4:A7:85:39
Chain
Starfield Secure Certificate Authority - G2 → Starfield Root Certificate Authority - G2
Subject Alternative Names (15)
schweitzer.engineering, sel-cables.com, selengineering.com, selinc.co, selinc.co.nz, selinc.com.br, selinc.com.co, selinc.com.mx, selinc.de, selinc.es, selinc.eu, selinc.kr, selinc.nl, www.selengineering.com, www.selinc.com.br

Certificate Authority Authorization (CAA)

CAA restricts issuance to godaddy.com; we couldn't map the serving CA (Starfield Technologies, Inc.) to one of these identifiers.

Never get surprised by selengineering.com's certificate expiring

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