SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
it-union.eu
SSL/TLS Certificate
SSL/TLS Certificate for it-union.eu
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- it-union.eu
- Valid from
- Jun 18, 2026
- Valid until
- Sep 16, 2026 (44 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 05F692911E0D84DE0B4BC302455183798010
- SHA-256 fingerprint
- DB:A7:F9:4C:43:36:8E:47:4E:0B:60:9D:93:39:B0:69:7E:D6:4C:C9:8D:91:F6:74:27:8C:4C:A7:D4:85:EE:B7
- 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 it-union.eu's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch it-union.eu 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.
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