SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
magister-plasticum.com
SSL/TLS Certificate
SSL/TLS Certificate for magister-plasticum.com
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- magister-plasticum.com
- Valid from
- Sep 24, 2026
- Valid until
- Dec 23, 2026 (78 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 050036E14EF9DD3F4ECC4DF719A7855C2F26
- SHA-256 fingerprint
- 39:6A:9A:72:CF:E1:27:2D:82:5D:5F:22:8D:FC:5F:11:6A:0D:C1:F2:3D:7B:96:2E:AB:AE:60:49:A2:86:3D:E9
- Chain
- YR2 → Root YR → ISRG Root X1
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
This certificate has been served since Oct 2, 2026.
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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, 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.
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