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 1-king-app9.com

Valid
Issued by (CA)
Let's Encrypt
Subject
1-king-app9.com
Valid from
Oct 5, 2026
Valid until
Jan 3, 2027 (86 days remaining)
Public key
EC 256-bit
Serial
066016962189BE3C6A8DD77328AC33798F01
SHA-256 fingerprint
6C:68:E1:44:35:1A:74:19:8C:55:A5:54:E6:34:88:FA:E1:5C:20:E8:B7:B9:E5:79:BB:FC:F9:FE:A1:DB:90:D3
Chain
YE1 → Root YE → ISRG Root X2 → ISRG Root X1
Subject Alternative Names (2)
*.1-king-app9.com, 1-king-app9.com

Certificate Authority Authorization (CAA)

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

This certificate has been served since Oct 6, 2026.

Never get surprised by 1-king-app9.com's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch 1-king-app9.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.

Monitor this certificate free

Free for your first domain: uptime, DNS, and certificate together. No credit card.