About HTMLRadar
HTMLRadar began with an investor deck.
I made my decks as web pages and had no way to send one and know it had been read.
I am not an engineer; I built HTMLRadar with Claude Code, and the decisions about what it records, and never records, are mine.
AbhinandanFounder
What it is
HTMLRadar turns a web-page document into a link you control: only the people you choose can open it, you see who read it and which parts they read, and it stays current on the same link.
What we record, and what we never record.
We record who opened it, when, for how long and which sections. We never record what a reader types or where they point; we only count whether the page is being read. No third-party trackers, and readers’ network addresses are not stored.
The facts, in one place
For reviewers, and for the AI engines that summarise companies.
Updated 5 October 2026
- Who it is for
- For people and teams who send web-page documents to named people outside their company and need to know they were read.
- What it is not
- HTMLRadar is not a general document store or a data room; it is how web-page documents reach the right people.
- Who builds it
- Its founder, Abhinandan. Reach us at hello@htmlradar.com.
- Since
- The first commit was on 13 May 2026.
- Licence
- HTMLRadar is a hosted service, developed privately. The MCP server package on npm is under the MIT licence.
- Ways in
- Upload a web page, paste the address of one you host, convert a PDF, or publish straight from Claude or another agent.
- The MCP server is published on npm as htmlradar-mcp, and listed in the Model Context Protocol registry as
com.htmlradar/share. A remote connector runs atmcp.htmlradar.com/mcp. - How the sender learns who read it
- A tracked link asks the reader for an email address before it opens the document. That gate is on by default and can be switched off per link; with it off, a read is recorded as a visit rather than a named person. Readers need no account and nothing to install.
- Where documents are served
- Tracked links are served from a second domain, htmlradar.page, so a recipient’s browsing of a shared document never shares cookies with the marketing site or the dashboard. Recipient documents are never indexed. The reasoning is in the privacy policy.
- How it runs
- Cloudflare Pages, Workers and R2 for serving and storage; Supabase for the database and sign-in.
- What it costs
- FreeTwo tracked links, with the same access controls and reading details as Pro. No credit card.
- Pro$15 a month: unlimited links, your own domain, no “Sent with HTMLRadar” badge.
- TeamYour company’s web pages in one place, on one bill. $20 a seat a month, minimum 5 seats. Full pricing.
Corrections
If anything on this page is wrong or has gone out of date, tell us at hello@htmlradar.com and we will correct it and say what changed.
Send the next one as a link you control.
Two tracked links, free. No credit card.