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Google Tag Manager Subdomain Enumerator

Find much more subdomains by adding this new method!

  • Checks if your target uses Google Tag Manager
  • Makes a request to the GTM API
  • Parses domains and returns results
#

go run main.go -target blackbirdsec.eu
www.blackbirdsec.eu
app.blackbirdsec.eu
support.blackbirdsec.eu
...

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Want to monitor subdomains daily?

Like without the hassle & setup process? First 7 days are on us.
And we also check:

  • Certificate Logs
  • HTTP Responses (Headers & Body)
  • Private Vault
  • Internet Archives
  • GitHub
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