SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
unique-companion.info
SSL/TLS Certificate
SSL/TLS Certificate for unique-companion.info
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- unique-companion.ch
- Valid from
- Sep 2, 2026
- Valid until
- Dec 1, 2026 (78 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 05901C97F0FB6CA4CD78C40775737D7F2A31
- SHA-256 fingerprint
- C0:8F:5D:F5:0D:2A:31:AA:FC:98:6D:BB:C8:35:DC:3D:46:5C:6C:1F:42:1F:2A:C8:8C:3A:C1:D5:E6:18:0C:90
- 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.
Never get surprised by unique-companion.info's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch unique-companion.info 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.