SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
SSL/TLS Certificate for 1-web.it
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- 1-web.it
- Valid from
- Sep 15, 2026
- Valid until
- Dec 14, 2026 (74 days remaining)
- Public key
- EC 384-bit
- Serial
- 06C5EE4661099E28023CF7FE6AD5FCB21382
- SHA-256 fingerprint
- A8:9B:8C:9E:8E:CD:51:C6:D8:5C:39:C8:5C:D3:E5:A9:92:42:E4:07:B5:5C:B0:8F:C1:11:C3:05:5F:E7:14:10
- Chain
- YE2 → Root YE → ISRG Root X2 → 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 Sep 25, 2026.
Never get surprised by 1-web.it's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch 1-web.it 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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