SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
group1-it.info
SSL/TLS Certificate
SSL/TLS Certificate for group1-it.info
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- group1-it.info
- Valid from
- Sep 11, 2026
- Valid until
- Dec 10, 2026 (53 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 05C0B3D80DB67C8E954F3BC1EEBF00D3635B
- SHA-256 fingerprint
- 2C:DA:C0:E7:29:86:4B:0D:B5:23:15:31:31:5C:91:D6:0A:20:68:CB:40:AF:F5:AF:97:E5:3C:B5:6F:2E:8D:F2
- 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 group1-it.info's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch group1-it.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.