SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
steu-dat.com
SSL/TLS Certificate
SSL/TLS Certificate for steu-dat.com
Self-signed- Issued by (CA)
- Plesk
- Subject
- Plesk
- Valid from
- May 17, 2019
- Valid until
- May 16, 2020 (expired 2363 days ago)
- Public key
- RSA 2048-bit
- Serial
- 5CDE89D6
- SHA-256 fingerprint
- E8:D6:28:05:F7:95:4F:2C:B7:DB:7E:5A:62:AB:B0:31:DD:BE:DA:2D:45:EE:4D:14:55:06:6A:E4:C3:FE:84:CB
- Chain
- Plesk
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
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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.
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