SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
dr-makowski.biz
SSL/TLS Certificate
SSL/TLS Certificate for dr-makowski.biz
Self-signed- Issued by (CA)
- Plesk
- Subject
- Plesk
- Valid from
- Feb 28, 2018
- Valid until
- Feb 28, 2019 (expired 2702 days ago)
- Public key
- RSA 2048-bit
- Serial
- 5A9674D2
- SHA-256 fingerprint
- 10:39:77:90:EF:DC:B1:E3:1B:3E:E9:9C:9B:A2:BF:17:AD:A5:91:C1:48:A5:88:38:5E:60:A0:5E:C9:53:84:61
- Chain
- Plesk
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
Never get surprised by dr-makowski.biz's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch dr-makowski.biz 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.