How to: Subdomain Takeover
https://github.com/anshumanbh/tko-subs
# Subdomain Takeover Scanner
```tko-subs -data providers-data.csv -threads 20 -domains subdomains.txt```

https://github.com/haccer/subjack
# Subjack is a Subdomain Takeover tool written in Go designed to scan a list of subdomains concurrently and identify ones that are able to be hijacked.
```subjack -w subdomains.txt -t 100 -timeout 30 -o results.txt -ssl```

https://github.com/Ice3man543/SubOver
# Subover is a Hostile Subdomain Takeover tool originally written in python but rewritten from scratch in Golang. Since it's redesign, it has been aimed with speed and efficiency in mind.
```SubOver -l subdomains.txt```

https://github.com/punk-security/dnsReaper
# DNS Reaper is yet another sub-domain takeover tool, but with an emphasis on accuracy, speed and the number of signatures in our arsenal.
```python3 main.py file --filename subdomains.txt```