SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
bapu-tech.com
SSL/TLS Certificate
SSL/TLS Certificate for bapu-tech.com
Hostname mismatch- Issued by (CA)
- Asseco Data Systems S.A.
- Subject
- www.xinweijianzhu.com
- Valid from
- Jan 15, 2026
- Valid until
- Feb 14, 2027 (207 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 3B3410E904C100EDAADDB7A0151AD5D2
- SHA-256 fingerprint
- 7E:64:77:42:0E:AF:38:2A:EC:58:7E:47:DE:AD:3F:61:A8:61:F3:00:61:97:CC:E2:DE:87:A6:E2:45:C3:8C:1B
- Chain
- Certum DV TLS G2 R39 CA → Certum Trusted Root CA → Certum Trusted Network CA
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
Never get surprised by bapu-tech.com's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch bapu-tech.com 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.
Free for your first domain: uptime, DNS, and certificate together. No credit card.