Silently scans sites for TLS security, harvest defence, and quantum readiness as you browse.
Users
3
−1 in 30 days
Rating
0.0 / 5
unchanged in 30 days
Ratings
0
0 in 30 days
Store rank
#303K
#246K among extensions
Version
1.0.0
updated 23 Jul 2026
Users
monthly, 3 months
Latest, 16 Oct 2026:3 usersMove the mouse over the chart for any month
Ratings count
monthly, 3 months
Latest, 16 Oct 2026:0 ratingsMove the mouse over the chart for any month
The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.
About Who Runs Your Web
Why I built this
A conversation with a quantum computing researcher changed how I think about the websites I visit every day. They explained how today's encrypted traffic could be recorded now and decrypted years from now, once quantum computers are powerful enough — a real strategic concern, not science fiction.
That sent me down a rabbit hole. I wanted to understand what actually happens technically when I visit a website — the layers of trust involved before a page even loads: who issues the certificate, who hosts the content, who's quietly serving the ads and analytics alongside it. What I found surprised me. A small number of infrastructure companies sit behind a huge share of the sites we all use daily, and almost nobody knows it, because there was never any reason to look.
Who Runs Your Web is the tool I built to make that visible — first for myself, then for anyone curious enough to want the same picture.
What it actually does
Trust Score — a TLS security grade for every site you visit, generated automatically as you browse
Harvest Defence — flags sites vulnerable to the "harvest now, decrypt later" risk I learned about in that first conversation
Quantum Readiness — shows which sites are genuinely prepared for a post-quantum world, and which aren't close
Uninvited Guests — the third parties loading silently on the page, grouped by who actually owns them
Who Runs Your Web — your own map of infrastructure concentration, built from the sites you actually visit
AI Pattern Analysis — plain-English insights into your specific browsing exposure, not a generic checklist
A different kind of security tool
No red, no "WARNING," no fear-based scoring. Most people can't act on most security information anyway — so instead of advice you can't use, this just shows you the facts.
Scan history stays local. Anonymous reporting toward a public infrastructure map is opt-in and off by default — nothing leaves your machine unless you turn it on.