SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
um-click.site
SSL/TLS Certificate
SSL/TLS Certificate for um-click.site
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- um-click.site
- Valid from
- Sep 16, 2026
- Valid until
- Dec 15, 2026 (84 days remaining)
- Public key
- EC 256-bit
- Serial
- 05E222CAF166C03AEA7E7D83CEB9A3B9C585
- SHA-256 fingerprint
- 87:87:2B:37:D1:1B:2A:1F:8A:5F:46:CE:F3:51:38:4A:F9:A4:E6:5E:D8:88:BB:B2:7E:0F:CA:26:83:70:5F:36
- Chain
- YE2 → Root YE → ISRG Root X2 → ISRG Root X1
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
Never get surprised by um-click.site's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch um-click.site 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.
Free for your first domain: uptime, DNS, and certificate together. No credit card.