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Maximus Beato
Maximus Beato

Posted on • Originally published at apimesh.xyz

how to find insecure subdomains fast with an api that leverages dns and cert logs

the problem

detecting security issues across multiple subdomains can be tedious and time-consuming. manual scanning often misses outdated or misconfigured endpoints, leaving your apps vulnerable.

the solution

meet the subdomain-vulnerability-assessment api, which does exhaustive subdomain enumeration using free dns and certificate transparency logs, then analyzes for misconfigurations, exposed files, or outdated endpoints.

example curl:



curl https://subdomain-vulnerability-assessment.apimesh.xyz/check?domain=example.com


expected output:


{
  "subdomains": [
    "admin.example.com",
    "api.example.com"
  ],
  "issues": {
    "admin.example.com": ["exposed admin panel"],
    "api.example.com": ["outdated endpoint detected"]
  }
}


## how it works
this api leverages free dns records and certificate transparency logs to discover subdomains. it then analyzes web configurations, headers, and endpoints for common misconfigurations and security issues, providing a detailed report.

## try it
get a free preview, then pay just $0.005 per check. make your subdomain security easier now at https://subdomain-vulnerability-assessment.apimesh.xyz
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