SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
host-check.net
SSL/TLS Certificate
SSL/TLS Certificate for host-check.net
Self-signed- Issued by (CA)
- PDXNET
- Subject
- default-landing.pdx.net.uk
- Valid from
- Aug 25, 2025
- Valid until
- Aug 23, 2035 (3208 days remaining)
- Public key
- RSA 4096-bit
- Serial
- 05114FAE600A36D5B11EB94647CCDEB919035761
- SHA-256 fingerprint
- 7E:68:B3:F4:28:E3:E0:F3:05:C3:24:52:2C:18:1C:B4:85:36:83:F1:26:A7:1A:8B:3C:01:8C:18:09:38:89:B6
- Chain
- default-landing.pdx.net.uk
Certificate Authority Authorization (CAA)
CAA restricts issuance to letsencrypt.org; we couldn't map the serving CA (PDXNET) to one of these identifiers.
This certificate has been served since Jul 24, 2026.
Never get surprised by host-check.net's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch host-check.net 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, CNAME, TXT 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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