SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
barchinkar.com
SSL/TLS Certificate
SSL/TLS Certificate for barchinkar.com
Valid- Issued by (CA)
- Asseco Data Systems S.A.
- Subject
- barchinkar.com
- Valid from
- Oct 18, 2026
- Valid until
- Apr 21, 2027 (165 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 7B836601EF4AA501A7B9A919E5B47FF0
- SHA-256 fingerprint
- B6:C5:13:4B:FA:97:B1:4C:1E:09:A1:7D:EF:E4:F0:D0:29:13:54:B4:2A:37:A4:34:5B:EB:9F:BE:64:3D:F0:39
- Chain
- Certum DV TLS G2 R39 CA → Certum Trusted Root CA
Certificate Authority Authorization (CAA)
CAA restricts issuance to certum.pl; we couldn't map the serving CA (Asseco Data Systems S.A.) to one of these identifiers.
We've observed 1 previous certificate for this host. This certificate has been served since Nov 3, 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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