SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
mg-kancelaria.pl
SSL/TLS Certificate
SSL/TLS Certificate for mg-kancelaria.pl
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- www.mg-kancelaria.pl
- Valid from
- Jul 1, 2026
- Valid until
- Sep 29, 2026 (68 days remaining)
- Public key
- EC 256-bit
- Serial
- 056F38033B776F5E3FC70FB9D6C2B20E4872
- SHA-256 fingerprint
- 88:E0:9F:E6:D8:C5:04:6A:7E:46:9B:33:27:5D:C6:78:0A:DA:3D:E8:38:7F:8F:A2:D3:7E:2B:BB:9F:3B:A3:D0
- 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.
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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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