Spyse enables you to find subdomains of any domain and reveal analytical information about companies,
their security gaps, and vulnerabilities. Get an insider’s look at the infrastructure of any company in
We collect broad amounts of data using a self-developed subdomain finder and provide access to
the largest subdomains database on the web.
All data gathered by Spyse is stored and updated daily, making our subdomains database practical
to use at all times.
Download, store, and access the information offline right when you need it.
Who Need to Find Subdomains?
Pentesters and Security Engineers
Our tool allows security engineers to monitor vulnerabilities, as well as identify gaps and
weaknesses to prevent attacks. With Spyse, pentesters can check the endpoints for vulnerability,
including subdomains in the development environment, technical domains open to the public, and
Dealing with mass data made simple — system admins can find subdomains to optimize and support
their organization’s infrastructure; collect useful info, monitor DNS records and certificate
encryption changes. Spyse improves sysadmins overall work speed and efficiency.
Our subdomain finder provides analytical information on any organization in the world. Business
analysts can evaluate competitors, foresee changes and developments in their business, and get
an insider look at new features before they’re launched. This tool lists all the subdomains by
subnets (including indexed and development pages), IPs, AS numbers — anything an analyst would
How to Find Subdomains Instantly
Enter any domain name (like your competitor’s website or amazon.com)
Get the Results
We store and update data daily, giving you immediate access. No queue
Keep the Data
After you find all subdomains of a domain, feel free to download a TSV file and access it
Sign up to Spyse and receive 3 free credits. With one credit you can perform 300 search, filter,
and/or download requests. 3 credits allow you to download 6k rows of data for free. Our users also
receive 1 free credit per month.
Spyse allows both signed-up and guest users access to our API.
API (Application Programming Interface), its a toolkit of various procedural operations
used to foster productive interaction between different software systems, platforms,
applications or their components. It allows for a quicker and more efficient way of
operating of all Spyse's services. The API is also flexible and lends itself to a
plethora of uses — you can connect our subdomain finder tool with your software products
and applications to increase the speed and convenience. Spyse employs the same credits
system as on the web page, so using our API you can download up to 2k data rows for only