SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
aboa-ohjelmistot.com
SSL/TLS Certificate
SSL/TLS Certificate for aboa-ohjelmistot.com
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- www.aboa-ohjelmistot.com
- Valid from
- Sep 1, 2026
- Valid until
- Nov 30, 2026 (63 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 0614A32BF090CC8265B82D2DB9B5CCCA5919
- SHA-256 fingerprint
- 4B:29:F7:61:21:D1:E9:05:56:29:A2:54:ED:FC:69:66:7E:6B:0C:84:0C:B1:F6:5A:D3:42:40:64:01:9B:82:B4
- 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.
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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, 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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