SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
hbt-ag.ch
SSL/TLS Certificate
SSL/TLS Certificate for hbt-ag.ch
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- hbt-ag.ch
- Valid from
- Aug 30, 2026
- Valid until
- Nov 28, 2026 (53 days remaining)
- Public key
- EC 256-bit
- Serial
- 053C38C5F5C6A9B10EE3CBBCC75275710FA2
- SHA-256 fingerprint
- AF:8C:24:3A:33:F8:DB:0C:F4:03:C6:B7:4A:D7:41:6E:DE:EA:62:5E:F7:01:0B:86:85:5E:25:6C:35:FC:02:0E
- Chain
- YE1 → 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.
This certificate has been served since Sep 10, 2026.
Never get surprised by hbt-ag.ch's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch hbt-ag.ch 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.