SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
heim-k.com
SSL/TLS Certificate
SSL/TLS Certificate for heim-k.com
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- www.heim-k.com
- Valid from
- Jun 2, 2026
- Valid until
- Aug 31, 2026 (33 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 053D56E6676C61B1D3E4A410E5DEE878FC49
- SHA-256 fingerprint
- 09:05:94:93:4D:D8:D5:03:14:43:F6:C8:C8:EE:20:5A:7D:79:7B:FE:57:93:26:1E:97:DA:59:2F:DE:C5:04:39
- Chain
- YR1 → Root YR → 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 heim-k.com's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch heim-k.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.