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2026-08-01 crawl · observed, not inferred

Technology used by sudokuonline.io

Play Sudoku Online: solve unlimited free sudoku puzzles from easy, medium, hard and evil difficulty levels. Play it and challenge yourself.

30
technologies detected

Recent changes

2026-04-01 dropped Cloudflare Bot Managementprovisional
2026-01-01 dropped PHPconfirmed
2026-01-01 dropped Adobe Audience Managerconfirmed

Full detected stack

Everything detected on this domain in the latest monthly crawl, grouped by what it does. ↩ marks when we first observed it — no later than that date, not necessarily when they adopted it. Faded dates were seen in fewer than four crawls.

Advertising
Prebid9.53.5↩ Apr 2022Criteo↩ Apr 2022OpenX↩ Apr 2022ID51.0.97↩ Oct 2023Google Publisher Tag↩ Feb 2021Amazon Advertising↩ Jun 2026
Analytics
VWO↩ Jul 2024Snowplow Analytics↩ Apr 2022Google Analytics↩ Jun 2020FullStory↩ Jun 2024Facebook Pixel2.9.377↩ May 2023
CDN
Cloudflare↩ May 2022jsDelivr↩ Jul 2020cdnjs↩ May 2022
Security
Confiant↩ May 2025reCAPTCHA↩ Apr 2022Cloudflare Bot Management↩ Jan 2025
Miscellaneous
PWA↩ Aug 2023Open Graph↩ Sept 2022Popper↩ Apr 2022
JavaScript libraries
core-js3.32.2↩ May 2023jQuery3.6.0↩ Jun 2020
Font scripts
Google Font API↩ Jun 2020Font Awesome5.11.2↩ Jul 2020
UI frameworks
Bootstrap4.4.1↩ Jun 2020
Web servers
Nginx↩ Jun 2020
Tag managers
Google Tag Manager↩ Jun 2020
Performance
Priority Hints↩ Aug 2026
Hosting
GoDaddy↩ Aug 2022
Segmentation
Adobe Audience Manager↩ Dec 2025
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