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https://github.com/lord3ver/gctsubdomains

Discover subdomains in Certificate Transparency logs using Google's Transparency Report
https://github.com/lord3ver/gctsubdomains

bugbounty go osint penetration-testing pentest recon subdomain subdomain-enumeration

Last synced: 2 months ago
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Discover subdomains in Certificate Transparency logs using Google's Transparency Report

Host: GitHub
URL: https://github.com/lord3ver/gctsubdomains
Owner: lord3ver
License: mit
Created: 2021-08-28T00:59:35.000Z (almost 3 years ago)
Default Branch: master
Last Pushed: 2021-08-28T01:13:18.000Z (almost 3 years ago)
Last Synced: 2024-02-06T00:47:20.197Z (5 months ago)
Topics: bugbounty, go, osint, penetration-testing, pentest, recon, subdomain, subdomain-enumeration
Language: Go
Homepage:
Size: 4.88 KB
Stars: 2
Watchers: 1
Forks: 0
Open Issues: 0
Metadata Files:
- Readme: README.md
- License: LICENSE

Lists

awesome-hacking-lists - lord3ver/gctsubdomains - Discover subdomains in Certificate Transparency logs using Google's Transparency Report (Go)

README

# GctSubdomains

Tool for discover subdomains in Certificate Transparency logs using Google's Transparency Report.

### Requirements
[Go](https://golang.org/) environment ready to go.

### Install

```bash
go get github.com/lord3ver/gctsubdomains
```

### Usage

```txt

______ __ _____ __ __ _
/ ____/____/ /_/ ___/__ __/ /_ ____/ /___ ____ ___ ____ _(_)___ _____
/ / __/ ___/ __/\__ \/ / / / __ \/ __ / __ \/ __ '__ \/ __ '/ / __ \/ ___/
/ /_/ / /__/ /_ ___/ / /_/ / /_/ / /_/ / /_/ / / / / / / /_/ / / / / (__ )
\____/\___/\__//____/\__,_/_.___/\__,_/\____/_/ /_/ /_/\__,_/_/_/ /_/____/

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.

### Example
```
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?
- Why not? I needed it and on a summer night I did it.
- Search CT logs for unknown subdomains.
- Other subdomain scanners companion.