Category
Sales Intelligence
Key features
Website technology lookup
Technographic lead list builder
Competitor watchlist with weekly alerts
01 — Overview
What is
LargerIO
LargerIO detects the technologies that websites use, such as analytics, CMS, frameworks, hosting and payment tools, across about 22 million domains. Sales and marketing teams use it to build lead lists of sites running specific technologies, watch competitors for stack changes, and compare technology adoption and market share. Data is also available through a REST API and an MCP server for AI assistants.
02 — Who it’s for
Ideal Customer Profile
Built for sales prospecting, competitive intelligence and research teams at startups and small businesses that sell into companies using particular technologies.
03 — Capabilities
Key Features
Website technology lookup
Technographic lead list builder
Competitor watchlist with weekly alerts
Technology comparison and market share
REST API
MCP server for AI assistants
05 — Similar tools
Alternatives
06 — FAQ
Frequently Asked Questions
What is LargerIO used for?
LargerIO shows which technologies a website runs and lets you build lists of sites using a given technology, which is useful for technographic prospecting.
Who is LargerIO for?
It is aimed at sales prospecting, competitive intelligence, research and recruiting use cases, according to its use case pages.
Can I track competitors with LargerIO?
Yes. You can add a few competitor sites to a watchlist, and LargerIO rescans them weekly and emails you when a technology appears or disappears.
Does LargerIO have an API?
Yes. It offers a REST API with bearer token access and an MCP server for tools like Claude, Cursor and VS Code, both using the same data.