SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
gian-andrea.com
SSL/TLS Certificate
SSL/TLS Certificate for gian-andrea.com
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- gian-andrea.com
- Valid from
- Oct 27, 2026
- Valid until
- Jan 25, 2027 (75 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 06617337D53D0ABF6C1BED96176A96B8CCB3
- SHA-256 fingerprint
- F8:1A:31:1D:6F:4B:38:27:EA:49:57:69:1C:31:4D:A6:62:0B:D8:BD:EA:00:E4:88:12:0E:85:77:A4:B4:C3:72
- 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.
This certificate has been served since Oct 29, 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, CNAME, TXT 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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