402registry
not read yet
Use
- Runs as
- API
- Used for
- check whether a site's content loads without JavaScript
- find soft 404 pages that return a 200 status
- compare www and bare-domain versions for duplicate content
- Has an MCP server (1 in the registry)public registry →
- Publishes llms.txt, a file written for AI assistants402registry.com ↗
- Trust centertheir owntrust center ↗
- Privacy policy updated2026-10-23privacy policy ↗
- Security contactsecurity.txt
These are 402registry's own statements, read from its pages. We did not audit them. A line that is missing was not found on the pages we read; it does not mean the practice is absent.
- MCP servercom.402registry/402registryverified in the MCP registry
- Stateanswers, 4 toolschecked 2026-10-24
- Address to connect402registry.com/mcp
- OpenAPI spec39 pathsthe spec ↗
This card as JSON, for your agent →
Each line is something a program found when it went looking: the registry entry, the server's own answer, a spec that parses. A missing line means we did not find it, not that it does not exist.
Figure and bar: visits/mo, estimate · year: online since
- #1
Diffbot
Extracts structured data from web pages and crawls entire sites into datasets without hallucinations.
2kActiveFrom $299/mo2011 - #2
Spider.cloudMCP · sign-in
Crawls and scrapes websites through its own browser engine and proxy network, returning each page as streamed markdown or JSON.
1.4kActiveFrom $1 per use2023 - #3
JsmonMCP · sign-in
Crawls a domain's URLs and analyses their JavaScript for exposed credentials, vulnerable endpoints and third-party risk, alerting via Jira, Slack or email.
529ActiveFrom $15/mo - #4
Salience
Reads server and CDN logs to show which crawler and bot requests hit a site, their responses, and whether identities are genuine.
157From $19/mo2026 - #5
DeepSEOAnalysisMCP · sign-in
Crawls a URL and scores technical SEO, Core Web Vitals, schema, internal links and AI citation readiness in one report.
144ActiveFrom $24/mo - #6
VisibilityKit
Crawls your site on your own machine and re-checks each fix against what the server returns, driven by an MCP-ready AI client.
86MaintainedFrom $79/mo
Not it? Say what you need
betaThree tools from the Atlas for the job you describe, each with what fits and what does not.
No notes yet. What do you use 402registry for?
Sign in to leave a noteWhat is 402registry?
Fetches a site as an AI crawler, without JavaScript, and reports what the page exposes to it. It is listed in the Atlas under Data.
Do people use 402registry?
Little sign of use.
Is 402registry safe?
We do not audit vendors. What 402registry publishes, read 2026-10-24: a trust center.
What are alternatives to 402registry?
In Data, by use: Diffbot, Spider.cloud, Jsmon, Salience, DeepSEOAnalysis, VisibilityKit.
How we read a tool
No votes, no reviews, no vendor claims. Every week a crawler reads each tool's own site and a few public registries, and the words on the card are bands over what it read.
- Use: visits to the site (estimated), installs from npm and PyPI, presence in Chrome's usage report.
- Activity: the newest release on GitHub, npm or PyPI; the newest dated page on the site; open roles on a public jobs board.
- Price: the vendor's own pricing page, read with the date. A figure is printed only when it is on that page.
- The line and the use cases are written by us from the homepage, one tool at a time, and refused when they repeat the vendor's marketing.
How AI assistants read each site — the reading vendors ask us about — is on each tool's own visibility page.
How we read every tool → · By INITE Atlas Desk
Cookies
Before we count this visit
Analytics and ad measurement tell us which pages and which of our ads do their job: Google Analytics and Google Ads, the Meta pixel, Yandex Metrica, and one first-party id of our own. Nothing is stored until you answer, and declining changes nothing about the site.