What powers harrowschool.org.uk?
Last seen Jun 2026 · 52 technologies across 26 categories
Analytics
Cloudflare Browser Insights
since Jun 2021
Microsoft Clarity
since Oct 2025
CDN
Cookie compliance
CookieYes
since Nov 2024
Databases
Editors
CodeMirror
since Jul 2020
Amazon SES
since Aug 2022
Font scripts
Google Font API
since Aug 2018
MyFonts
since Nov 2025
Hosting
GoDaddy
since Aug 2025
Issue trackers
JavaScript frameworks
JavaScript graphics
Chart.js
since Jul 2024
JavaScript libraries
Miscellaneous
Babel
since Jul 2024
HTTP/3
since Sep 2022
Open Graph
since Sep 2022
PWA
since Aug 2022
Webpack
since Jan 2019
Operating systems
Windows Server
since Aug 2018
PaaS
Amazon Web Services
since Aug 2022
Programming languages
RUM
Raygun
since Sep 2022
Security
Tag managers
Google Tag Manager
since Jul 2020
UI frameworks
Video players
VideoJS
since May 2026
Web frameworks
Microsoft ASP.NET
since Aug 2018
Web Mail
Outlook Web App
since Jan 2019
Web servers
Apache HTTP Server
since Mar 2023
IIS
since Aug 2018
Webmail
Apple iCloud Mail
since Jan 2023
Widgets
AddThis
since Aug 2018
Audience
- 57% desktop
- 43% phone
United Kingdom
Hong Kong SAR China
United States
India
Japan
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
4.69 / 10 · ranked #348,883 of all domains
162 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.9 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 800 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Weight: 2.8 MB · 30 requests
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| www.harrowschool.org.uk | 29 |
| my.harrowschool.org.uk | 19 |
| applyonline.harrowschool.org.uk | 12 |
| sport.harrowschool.org.uk | 11 |
| isams.harrowschool.org.uk | 10 |
| firefly.harrowschool.org.uk | 8 |
| parents.harrowschool.org.uk | 6 |
| exmail.harrowschool.org.uk | 4 |
Full technology history →
Report an incorrect detection
Recent changes
- detected VideoJS May 2026
- detected Cloudflare Bot Management Mar 2026
- detected Stimulus Mar 2026
- dropped Cloudflare Bot Management Nov 2025
- detected Htmx Nov 2025
- detected MyFonts Nov 2025
- detected jsDelivr Oct 2025
- detected Microsoft Clarity Oct 2025
- detected GoDaddy Aug 2025