Tool for discover subdomains in Certificate Transparency logs using Google's Transparency Report.
Go environment ready to go.
go get github.com/lord3ver/gctsubdomains
______ __ _____ __ __ _
/ ____/____/ /_/ ___/__ __/ /_ ____/ /___ ____ ___ ____ _(_)___ _____
/ / __/ ___/ __/\__ \/ / / / __ \/ __ / __ \/ __ '__ \/ __ '/ / __ \/ ___/
/ /_/ / /__/ /_ ___/ / /_/ / /_/ / /_/ / /_/ / / / / / / /_/ / / / / (__ )
\____/\___/\__//____/\__,_/_.___/\__,_/\____/_/ /_/ /_/\__,_/_/_/ /_/____/
Google Transparencyreport subdomains finder
Version: 0.9.0
Usage:
-d string
Target domain. E.g. bing.com
-lookout
Do DNS lookups for the domains to see which ones exist (default true)
-out
Print results to stdout (default true)
-outfile string
Specify an output file when completed. Create or append if exists.
-rmd
Remove duplicates (default true)
-rme
Remove external domains, like xyz.com for uber.com domain (default false)
-rmw
Remove wildcard domains, ex. *.uber.com (default true)
At least one option among out
and outfile
must be specified.
gctsubdomains -d uber.com --rmd=true --rme=true --out=true --outfile=output.txt
accessibility.uber.com
assets.uber.com
base.uber.com
assets-share.uber.com
beacon.uber.com
bizblog.uber.com
blog.uber.com
...
- Why not? I needed it and on a summer night I did it.
- Search CT logs for unknown subdomains.
- Other subdomain scanners companion.