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2026-08-01 crawl · observed, not inferred

Technology used by penguinreaders.co.uk

Graded ELT readers – the best contemporary fiction, essential non-fiction and popular classics written for learners of English as a foreign language.

36
technologies detected
penguin readers
company
1-10
employees
united kingdom
location

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.

JavaScript libraries
jQuery UI1.13.3↩ Feb 2020core-js3.32.2↩ Mar 2023Slick↩ Feb 2020jQuery Migrate3.4.1↩ Feb 2020jQuery3.7.1↩ Feb 2020
Font scripts
Twitter Emoji (Twemoji)↩ Feb 2020Google Font API↩ Nov 2022Font Awesome4.7.0↩ Feb 2020Typekit↩ Feb 2021
Miscellaneous
RSS↩ Dec 2022PWA↩ Aug 2022Open Graph↩ Sept 2022HTTP/3↩ Sept 2022
Security
reCAPTCHA↩ Jan 2025HSTS↩ Sept 2022Cloudflare Bot Management↩ Nov 2023
PaaS
Amazon Web Services↩ Aug 2022WP Engine↩ Mar 2020
Performance
LazySizes↩ Feb 2022Priority Hints↩ Oct 2023
Tag managers
Adobe Experience Platform Launch↩ Jul 2021Google Tag Manager↩ May 2025
Analytics
Adobe Analytics↩ Jul 2021Facebook Pixel2.9.377↩ Jul 2021
CDN
cdnjs↩ May 2022Cloudflare↩ Apr 2021
CMS
WordPress↩ Feb 2020
Databases
MySQL↩ Feb 2020
Programming languages
PHP↩ Feb 2020
UI frameworks
Bootstrap4.0.0↩ Feb 2020
SEO
Yoast SEO22.8|22.8↩ Feb 2020
WordPress plugins
Autoptimize3.1.13|3.1.13↩ Feb 2022
Customer data platform
Adobe Experience Platform Identity Service↩ Jul 2021
Advertising
Twitter Ads↩ Apr 2022
Cookie compliance
OneTrust↩ Sept 2021
Email
Amazon SES↩ Aug 2022
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