SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
jonas-berg.com
SSL/TLS Certificate
SSL/TLS Certificate for jonas-berg.com
Expired- Issued by (CA)
- Let's Encrypt
- Subject
- jonas-berg.com
- Valid from
- Oct 27, 2024
- Valid until
- Jan 25, 2025 (expired 659 days ago)
- Public key
- RSA 2048-bit
- Serial
- 03492AC09394427095AF3FFB8800797A8E31
- SHA-256 fingerprint
- 20:34:7D:6F:0D:EE:D1:C8:90:3D:BC:C1:E2:1B:78:54:EA:1B:7F:AA:1D:CC:75:B9:8B:48:CC:F6:19:E4:1B:DB
- Chain
- R11 → ISRG Root X1
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
Never get surprised by jonas-berg.com's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch jonas-berg.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, CNAME, TXT 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.