haktrails is a Golang client for querying SecurityTrails API data, sponsored by SecurityTrails.

• stdin input for easy tool chaining
• subdomain discovery
• associated root domain discovery
• associated IP discovery
• historical DNS data
• historical whois data
• DSL queries (currently a prototype)
• company discovery (discover the owner of a domain)
• whois (returns json whois data for a given domain)
• ping (check that your current SecurityTrails configuration/key is working)
• usage (check your current SecurityTrails usage)
• "json" or "list" output options for easy tool chaining
• "ZSH & Bash autocompletion"

You will need a SecurityTrails API key to use this tool. If you're using it for bug bounties, I'd recommend checking out the bug bounty hunter's toolkit if you're a bug bounty hunter. It provides access to the majority of data that you will need for a good price. See the details below.

Once you have an API key, install golang, then:

#Go version > 1.17
go install -v github.com/hakluke/haktrails@latest
~/go/bin/haktrails

# Go version < 1.17
# https://golang.org/doc/go-get-install-deprecation

go get github.com/hakluke/haktrails
~/go/bin/haktrails

I'd recommend adding ~/go/bin/ to your $PATH if you haven't already, then you can just run haktrails.

ZSH and Bash autocompletion is available Just add this to your ~/.zshrc or ~/.bashrc

source ~/go/src/github.com/hakluke/haktrails/haktrails-completion.zsh
or
source ~/go/src/github.com/hakluke/haktrails/haktrails-completion.bash

NOTE: If you are using a custom GOPATH location, use it instead of the default one (which is ~/go)

Note: In these examples, domains.txt is a list of root domains that you wish to gather data on. For example:

hakluke.com
bugcrowd.com
tesla.com
yahoo.com

• The output type can be specified with -o json or -o list. List is the default. List is only compatiable with subdomains, associated domains and associated ips. All the other endpoints will return json regardless.
• The number of threads can be set using -t <number>. This will determine how many domains can be processed at the same time. It's worth noting that the API has rate-limiting, so setting a really high thread count here will actually slow you down.
• The config file location can be set with -c <file path>. The default location is ~/.config/haktools/haktrails-config.yml. A sample config file can be seen below.
• The lookup type for historical DNS lookups can be set with -type <type>, available options are a,aaaa,mx,txt,ns,soa.
• The DSL query can be set with -query <query>. See here for more details.

You will need to set up a configuration file with your SecurityTrails key to use this tool. By default, the tool will look for the file in ~/.config/haktools/haktrails-config.yml. If you wish to put the config file somewhere else, the location must be specified with the -c flag.

The format of the file is very simple, just copy paste this, and replace <yourkey> with your SecurityTrails API key:

securitytrails:
  key: <yourkey>

Warning: With this tool, it's very easy to burn through a lot of API credits. For example, if you have 10,000 domains in domains.txt, running cat domains.txt | haktrails subdomains will use all 10,000 credits. It's also worth noting that some functions (such as associated domains) will use multiple API requests, for example, echo "yahoo.com" | haktrails associateddomains would use about 20 API requests, because the data is paginated and yahoo.com has a lot of associated domains.

This will gather all subdomains of all the domains listed within domains.txt.

cat domains.txt | haktrails subdomains

Of course, a single domain can also be specified like this:

echo "yahoo.com" | haktrails subdomains

"Associated domains" is a loose term, but it is generally just domains that are owned by the same company. This will gather all associated domains for every domain in domains.txt

cat domains.txt | haktrails associateddomains

Again, associated IPs is a loose term, but it generally refers to IP addresses that are owned by the same organisation.

cat domains.txt | haktrails associatedips

Returns historical DNS data for a domain.

cat domains.txt | haktrails historicaldns

Returns historical whois data for a domain.

cat domains.txt | haktrails historicalwhois

Runs a custom SecurityTrails DSL query. See here for more details.

haktrails dsl -query <query>

Returns the company that is associated with the provided domain(s).

cat domains.txt | haktrails company

Returns all details of a domain including DNS records, alexa ranking and last seen time.

cat domains.txt | haktrails details

Returns whois data in JSON format.

cat domains.txt | haktrails whois

Returns "tags" of a specific domain.

cat domains.txt | haktrails tags

Returns data about API usage on your SecurityTrails account.

haktrails usage

Pings SecurityTrails to check if your API key is working properly.

haktrails ping

Shows a nice ascii-art banner :)

haktrails banner

Currently, some of the features of the SecurityTrails API are not yet supported. Pull requests are welcome!

• Scroll
• Domains Search
• Domains Statistics
• SSL Certificates (Stream)
• SSL Certificates (Pages)
• IP Neighbours
• IP Statistics
• IP Whois
• IP Useragents
• Domains feed
• Domains DMARC feed
• Domains subdomains feed
• Certificate transparency firehose

The full API reference is here.