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 platgm.com

Valid
Issued by (CA)
Google Trust Services
Subject
platgm.com
Valid from
Jun 26, 2026
Valid until
Sep 24, 2026 (60 days remaining)
Public key
EC 256-bit
Serial
7745ABF9F32921AD131A5539F6559A3E
SHA-256 fingerprint
4A:75:FC:45:B0:98:A1:B4:3C:AA:BA:0F:33:EE:F5:67:D8:2B:9F:B4:26:DD:32:85:AD:43:EA:0B:ED:EA:6A:8A
Chain
WE1 → GTS Root R4
Subject Alternative Names (2)
*.platgm.com, platgm.com

Certificate Authority Authorization (CAA)

No CAA policy is published for this domain — any certificate authority may issue for it.

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