SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
handshake-app.com
SSL/TLS Certificate
SSL/TLS Certificate for handshake-app.com
Valid- Issued by (CA)
- Google Trust Services
- Subject
- handshake-app.com
- Valid from
- Jul 22, 2026
- Valid until
- Oct 20, 2026 (66 days remaining)
- Public key
- EC 256-bit
- Serial
- AA973D7A0AF299E01303BBC35D938484
- SHA-256 fingerprint
- B9:38:D1:F5:15:E8:C7:C1:98:6A:9B:15:16:B5:F3:54:35:75:84:FD:83:47:20:84:8B:ED:58:3A:D0:05:85:D1
- Chain
- WE1 → GTS Root R4
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
Never get surprised by handshake-app.com's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch handshake-app.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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