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 alpen-bonsai.com

Valid
Issued by (CA)
Let's Encrypt
Subject
*.alpenbonsai.ch
Valid from
Oct 5, 2026
Valid until
Jan 3, 2027 (80 days remaining)
Public key
RSA 2048-bit
Serial
06901E202A8BAB93CCA0BAFEE5E69C99F717
SHA-256 fingerprint
23:7B:76:3D:CF:0D:25:62:80:F1:7F:60:76:E0:66:47:C4:87:99:34:0C:66:73:47:61:AE:EF:83:9E:96:0C:F6
Chain
YR1 → Root YR → ISRG Root X1
Subject Alternative Names (8)
*.alpen-bonsai.ch, *.alpen-bonsai.com, *.alpenbonsai.ch, *.alpenbonsai.com, alpen-bonsai.ch, alpen-bonsai.com, alpenbonsai.ch, alpenbonsai.com

Certificate Authority Authorization (CAA)

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

We've observed 1 previous certificate for this host. This certificate has been served since Oct 11, 2026.

Never get surprised by alpen-bonsai.com's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch alpen-bonsai.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.