SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
highlandassoc.com
SSL/TLS Certificate
SSL/TLS Certificate for highlandassoc.com
Valid- Issued by (CA)
- Sectigo Limited
- Subject
- highlandassoc.com
- Valid from
- Apr 2, 2026
- Valid until
- Oct 17, 2026 (25 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 5048AD4216658B3023556B005E6D0DCF
- SHA-256 fingerprint
- 5F:FB:1B:95:81:D2:18:F4:01:10:FE:23:35:D2:A5:96:36:C0:0B:F4:8F:61:C0:75:DC:5C:18:00:1D:DF:5C:86
- Chain
- Sectigo Public Server Authentication CA EV R36 → Sectigo Public Server Authentication Root R46 → USERTrust RSA Certification Authority
Certificate Authority Authorization (CAA)
The serving CA (Sectigo Limited) is authorized by this domain's CAA records (sectigo.com).
This certificate has been served since Aug 12, 2026.
Never get surprised by highlandassoc.com's certificate expiring
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Uptime
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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.
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