calcudoku.org uses 86 technologies across 13 categories, including Apache, Apache HTTP Server, OpenSSL, PHP, Google Ads. The site is classified as Non-profit & Charity. WhatStack analyzes HTTP headers, HTML source, JavaScript globals, meta tags, cookies, DNS records, and ads.txt entries to detect technologies with high accuracy.
Website category: Non-profit & Charity (25% confidence)
Last analyzed: 1970-01-21T13:16:32.201Z