PublicWWW
PublicWWW is a source code search tool that finds every indexed website containing a given snippet of HTML, JavaScript or CSS, for marketers, researchers and teams building technographic lists.
Updated October 2026
Overview: What is PublicWWW?
The free account opens results from the top 3 million sites, and paid plans start at $109 a month for Pro (checked October 2026).
Search for a script tag, an analytics ID, a pixel or a WordPress theme path and you get the list of sites that carry it, sorted by popularity, with the matching code snippet. The homepage counter showed 974 million pages indexed on October 15, 2026. In a revenue system it's a list-building source: find every site running a competitor's script, then enrich those domains with contacts in another tool.
Fit: Ideal customer profile.
Teams that can describe their market by a piece of code: a SaaS company targeting sites that load a competitor's widget, an agency looking for a theme or tracking ID, or an analyst mapping related sites. It's not built for someone who wants contacts or company data out of the box.
- Technographic list building
- Competitor install research
- OSINT research
Capabilities
Key features.
01
Search any alphanumeric snippet in HTML, JavaScript, CSS and HTTP response headers
02
Query syntax with regular expressions and country-domain filters
03
Up to 1 million results per search on the Enterprise plan
04
CSV download of results, with code snippets on paid plans
05
Results sorted by website popularity
06
Clusters: saved site lists you can combine and extract data from
07
API and a remote MCP server for AI assistants on paid plans
Usage
How to use PublicWWW.
Type a snippet in quotes, such as a script URL or tracking ID, and filter by country domain or regular expression. Export the matching domains as CSV, then enrich them in Clay, Apollo or your CRM. On a paid plan the API and MCP server (api.publicwww.com/mcp) let Claude, ChatGPT, Cursor or a script run the same searches; they share the plan's daily search quota.
Cost
Pricing.
$109/ month
Prices in USD (checked October 2026). Annual plans are $1,090, $1,990 and $4,990. You can buy a single month or a month-to-month subscription and cancel any time.
Free
$0.00
- Results from top 3M sites
- Up to 1,000 rows per search
- No API access
Pro
$109.00
- Whole index
- 100 searches a day
- Up to 100,000 rows
- Also $49 a day or $79 a week
Business
$199.00
- Whole index
- 200 searches a day
- Up to 300,000 rows
Enterprise
$499.00
- Whole index
- 300 searches a day
- Up to 1M rows
At a glance
Quick facts.
- Stack position
- Prospecting Data
- Best for
- Technographic list building, Competitor install research, OSINT research
- Pricing
- From $109/month
Questions
Frequently asked.
How do I get a PublicWWW API key?
API access comes with a paid plan (Pro, Business or Enterprise). Free accounts can connect to the MCP server but their searches are refused, apart from reading the docs and price list.
Is PublicWWW free?
You can search for free, and results from the top 1 million sites show without an account. Registering opens the top 3 million. The rest of the index needs a paid plan.
What can you find with PublicWWW?
Sites sharing an analytics or ad account ID, sites loading a given script or widget, sites on a WordPress theme, or sites running a server version, all from the page source and headers.
What are PublicWWW's limits?
It only indexes pages a crawler can reach, so anything behind a login or CAPTCHA is missing, there's no published crawl schedule, and a search returns domains, not people.
What are the alternatives to PublicWWW?
BuiltWith and Wappalyzer sell lists of sites by detected technology, WhatCMS and WhatRuns check one site at a time, and TheirStack finds companies by technology and hiring signals from job posts.
Compare
PublicWWW alternatives.
Talk to us: Pick the tool. We run the system around it.
PublicWWW is one part of a stack. We build and run the revenue system it plugs into.
Talk to Phi