Ful.io: Pricing, Plans & Features
Website technology lookup with lead lists, technology change alerts, browser extensions and an MCP server.
#2 of 5 in Technology Lookup by Overall Score
What Is Ful.io?
Ful.io scans websites to identify their CMS, frameworks, analytics, hosting and payment tools, drawing on an index of 100M+ sites and 75,000+ technologies. Technology Reports build exportable company lists filtered by technology, country and domain ending, and Technology Signals sends email alerts when a site adds or drops a tool. Free Chrome, Firefox and Edge extensions show a page's stack, and an API and MCP server support CRM enrichment.
Editor Rating
Calculated from facts we verified on Ful.io's own website, using published thresholds. Nobody can pay to change it. Together with Market Signal it makes the Overall Score of 52 that orders our lists.
- Pricing transparency4.8
- Entry cost5.0
- Free access5.0
- Platforms & API3.5
- Support3.0
- IntegrationsNot scored
- Security & compliance1.5
Dimensions without verified data count as a neutral 2.5. Facts checked October 14, 2026. How the rating works
Market Signal
Real dataComputed from Ahrefs + Semrush data about Ful.io's own website. Not an assessment of the product itself. How this works →
Market Strength
32
Where it stands today
Momentum
45 Mixed ↕
Ahrefs and Semrush disagree on direction
Data Confidence
Medium
How much to trust it
- Traffic Strength33
- Search Visibility42
- Authority19
- Brand & Market Presence26
Tick mark = category average.
Compared with 15 tracked Competitive Intelligence tools. Data through September 2026, pulled October 13, 2026.
Ful.io Features
- Technology Lookup for any single site
- Technology Reports: exportable company lists by technology
- Technology Signals alerts on added or dropped tools
- Compare Technologies by market reach
- Browser extensions for Chrome, Firefox and Edge
- API and MCP server access
Ful.io Pricing
| Plan | Monthly | Annual (mo) | Includes |
|---|---|---|---|
| Free | Free | Free |
|
| Individual | $99 | $83 |
|
| Professional | $199 | $166 |
|
| Business | $399 | $333 |
|
| Enterprise | Custom | Custom |
|
Pricing shown reflects list prices as of our last check and may have changed. Confirm current pricing on Ful.io's website before purchasing.
Ful.io Integrations
HubSpot
Customer Support
Email, Phone
Ful.io at a Glance
- Platforms
- Web, Chrome Extension, API
Tools like Ful.io
WappalyzerIdentify the technologies websites are built with.
NerdyDataSource code search engine that finds websites by technology, script, cookie or HTML snippet.
WhatRunsBrowser extension that reveals a site's CMS, frameworks, plugins, fonts and trackers in one click.
BuiltWithWebsite technology intelligence service for stack lookup, technology trends and lead lists.
Frequently Asked Questions
Does Ful.io have a free trial or free plan?⌄
Ful.io offers a free plan, though it doesn't offer a separate free trial of paid tiers.
How much does Ful.io cost?⌄
Ful.io starts at $83/mo (annual billing, $990/yr) on its Individual plan. Pricing was last checked October 14, 2026. Always confirm current pricing on the vendor's site before purchasing.