SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
app-domain.com
SSL/TLS Certificate
SSL/TLS Certificate for app-domain.com
Valid- Issued by (CA)
- GoDaddy.com
- Subject
- app-domain.com
- Valid from
- Jul 25, 2026
- Valid until
- Oct 23, 2026 (31 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 3E5E2573A282FA85
- SHA-256 fingerprint
- 23:2F:97:0E:32:2B:2D:D1:78:01:70:D0:B3:F7:5E:DF:C1:54:E3:31:BB:49:1A:EF:9B:68:6E:4D:CC:E8:97:9B
- Chain
- GoDaddy TLS Intermediate CA DV - R1v1 → GoDaddy TLS Root CA - R1 → Go Daddy Root Certificate Authority - G2
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
Never get surprised by app-domain.com's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch app-domain.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.
Free for your first domain: uptime, DNS, and certificate together. No credit card.