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 plasan.com

Valid
Issued by (CA)
Sectigo Limited
Subject
*.plasan.com
Valid from
Nov 17, 2025
Valid until
Nov 18, 2026 (119 days remaining)
Public key
RSA 3072-bit
Serial
5D0B7A4654A02047F18D6B876C0230EF
SHA-256 fingerprint
8B:FD:B9:57:58:77:D0:2D:B4:B7:C7:9D:50:86:5A:34:D6:98:4E:74:05:01:D7:05:9F:F9:DC:C0:FA:1E:A2:53
Chain
Sectigo Public Server Authentication CA OV R36 → Sectigo Public Server Authentication Root R46
Subject Alternative Names (2)
*.plasan.com, plasan.com

Certificate Authority Authorization (CAA)

The serving CA (Sectigo Limited) is not among the authorities this domain's CAA records authorize (comodoca.com, digicert.com, letsencrypt.org, pki.goog, ssl.com). This can indicate a misconfiguration or an unexpected issuance.

This certificate has been served since Jul 20, 2026.

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

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