Tech stack checker. See what any website runs.
Enter a company's website to see the software it uses, from analytics and CRM to hosting and payments. Built on public signals our agents check every day.
Public signals, read every day.
We read DNS records, website code and job posts for millions of companies, then match what we find to more than 1,500 software tools. When a company adds or drops a tool, its stack updates.
About the tech stack checker.
A tool that shows the software a company uses. Enter a website and it lists the tools we can see there, grouped by category, such as analytics, CRM, help desk, hosting and payments.
From public signals: DNS records, website code, job posts and similar sources. We never use private data. Our agents check these signals continuously, so stacks stay current.
Yes. You get 10 free checks a day without an account. A free account gives you 100 company lookups a month, with the full stack and every tool the company added or dropped.
The free checker shows five tools and how many more we found in each category. Sign up free to see the full stack.
Yes. Every company page in the app shows each tool the company added or dropped, and when. Paid plans can also alert you when a company drops a tool you sell against.
See the full stack.
A free account shows every tool a company runs and every change we've seen. 100 lookups a month, no card needed.