Stack census— back to the censusSurvey 016 · 07.10.2026

Document Management - E-books · open source · awesome-selfhosted

Calibre

calibre-ebook.com · HTTP 200 in 902 ms

5 things were found in the response on 07.10.2026. This is the front door only: whatever runs behind a login, and anything a browser would have to execute to reveal, is not here.

What the page is built with

jQueryjavascript libraries
  • script — /resources/js/jquery.tools.min.js

Where it is served from

Nginxweb servers · reverse proxies
  • header — server: nginx

What is watching the visitor

Google AnalyticsvGA4analytics
  • script — https://www.googletagmanager.com/gtag/js?id=G-YMW4X5CSKP
  • script — inline script matches gtag\([^)]+'(G-)
Google Tag Managertag managers
  • script — https://www.googletagmanager.com/gtag/js?id=G-YMW4X5CSKP

How they take money

PayPalpayment processors
  • script — https://www.paypalobjects.com/api/checkout.min.js

Back to the census.