CertWatch

CertWatch searches the Certificate Transparency Logs for a domain to identify further sub domains.

CertWatch supports two different search methods:

  • Domain
    Search subdomains for the given domain, e.g. example.com. This will output results like www.example.com, sub1.example.com.
  • Domain without TLD
    Search for subdomains of the given domain, independent of the TLD, e.g. example. This will output results like www.example.com, www.example.net.

Result

Domain Transparency Log 3 of 4 (100)
eu-south-2-345d51.vpn.sse.cisco.com Google
eu-south-1-345d51.vpn.sse.cisco.com Google
eu-north-1-345d51.vpn.sse.cisco.com Google
ap-south-2-345d51.vpn.sse.cisco.com Google
ap-south-1-345d51.vpn.sse.cisco.com Google
af-south-1-345d51.vpn.sse.cisco.com Google
us-west-2-345d51.vpn.sse.cisco.com Google
us-west-1-345d51.vpn.sse.cisco.com Google
us-east-2-345d51.vpn.sse.cisco.com Google
us-east-1-345d51.vpn.sse.cisco.com Google
sa-east-1-345d51.vpn.sse.cisco.com Google
eu-west-3-345d51.vpn.sse.cisco.com Google
eu-west-2-345d51.vpn.sse.cisco.com Google
eu-west-1-345d51.vpn.sse.cisco.com Google
ca-west-1-345d51.vpn.sse.cisco.com Google
ap-east-1-345d51.vpn.sse.cisco.com Google
entry45-345d51.vpn.sse.cisco.com Google
entry44-345d51.vpn.sse.cisco.com Google
entry43-345d51.vpn.sse.cisco.com Google
entry42-345d51.vpn.sse.cisco.com Google
entry41-345d51.vpn.sse.cisco.com Google
entry40-345d51.vpn.sse.cisco.com Google
entry39-345d51.vpn.sse.cisco.com Google
entry38-345d51.vpn.sse.cisco.com Google
entry37-345d51.vpn.sse.cisco.com Google
entry36-345d51.vpn.sse.cisco.com Google
entry35-345d51.vpn.sse.cisco.com Google
entry34-345d51.vpn.sse.cisco.com Google
entry33-345d51.vpn.sse.cisco.com Google
entry32-345d51.vpn.sse.cisco.com Google
3 of 4 (100)
Search results are limited to a maximum number of 10.000 records.

On binsec.tools you will find free online tools for pentesting, which are also used within the binsec group conducting real penetration tests. The free pentest tools are primarily used to collect information and enrich these with other data. The pentest tools of binsec.tools do not carry out active attacks against target systems themselves.

binsec group - The Enterprise Pentesting Ecosystem

The German binsec group unifies high-end pentesting services, hands-on professional training labs, and innovative pentesting software solutions and tools. Operating as the technical core, binsec GmbH has delivered expert-led, human penetration testing since 2013. Rejecting automated scans, our permanently employed, certified senior experts perform manual deep-dive assessments for high-risk sectors like Payment, Banking, and Healthcare. The technological foundation of all engagements is driven by our proprietary, automated reporting framework PTDoc, under active development by binsec systems GmbH, ensuring a fully transparent, highly efficient penetration testing workflow from initial validation to final remediation.

Company

binsec systems GmbH
Clemensstraße 6-8
60487 Frankfurt am Main
Germany

Legal notice

Director: Patrick Sauer, Florian Zavatzki
Registration: Frankfurt am Main, HRB 118471
Turnover Tax Identification No.: DE 328 921 182

© 2026 All rights reserved by binsec systems GmbH. Member of the binsec group GmbH.

© 2026 All rights reserved by binsec systems GmbH. Member of the binsec group GmbH.