A small team building the directory of what the web runs on.
We care about one thing more than coverage counts or price: whether each detection is actually right. That is the reason StackSherlock exists.
How it all started
Try a live lookupStackSherlock started from a specific frustration. The existing tools scan one page, guess from the raw HTML, and miss whatever loads later from a tag manager or a single-page app. For anyone mapping a market, that is not a small gap. It quietly breaks every decision built on the data.
We built StackSherlock around a different premise: follow every request a site makes, confirm it on a live render, and trace each signal back to the company behind it. The result is a directory you can actually trust, down to the version.
Our values
Three things we will not trade away for a bigger coverage number.
Coverage over shortcuts
We'd rather render a page live than guess from its HTML. If a tool is on the page, we find it, even the ones loaded by a tag manager or a single-page app.
Evidence on every detection
Every technology we report links to the exact signal that triggered it (the script, header or cookie) so you can verify what you see before you trust it.
Transparent and current
The index refreshes continuously and changes are documented, so the catalog you query is the live web, not a stale snapshot from last quarter.
Our team
We come from infrastructure, data engineering and security, and we've spent years untangling how the web is actually built. We're hiring engineers who care about getting the data right.