What powers testbook.com?
Last seen Jun 2026 · 96 technologies across 37 categories
A/B Testing
Google Optimize
since Jul 2021
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Amplitude
since Apr 2020
Branch
since Feb 2021
Cloudflare Browser Insights
since May 2021
Google Analytics
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since May 2021
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since Mar 2026
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Amazon CloudFront
since Jan 2023
Amazon S3
since Mar 2026
cdnjs
since Mar 2022
Cloudflare
since Apr 2018
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since Apr 2022
Google Hosted Libraries
since Feb 2022
jQuery CDN
since Mar 2022
jsDelivr
since Feb 2022
Unpkg
since Sep 2021
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Turbopack
since Dec 2025
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Cart Functionality
since Feb 2022
Shopify
since Feb 2022
Font scripts
Google Font API
since Apr 2018
IaaS
Google Cloud
since Jul 2018
Issue trackers
UptimeRobot
since Oct 2024
JavaScript frameworks
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libphonenumber
since Aug 2025
Select2
since Mar 2026
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since Aug 2022
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since Apr 2023
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since Nov 2023
HTTP/3
since Sep 2022
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since Sep 2022
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since Jan 2023
Prism
since Mar 2026
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since Aug 2022
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since Nov 2020
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Priority Hints
since Apr 2023
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GraphQL
since Jan 2023
Node.js
since Nov 2020
PHP
since Jun 2018
Ruby
since Mar 2026
TypeScript
since Jul 2021
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Envoy
since Jan 2023
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Judge.me
since Jun 2024
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Datadog
since Jan 2023
Security
Cloudflare Bot Management
since Dec 2021
HSTS
since Sep 2022
Segmentation
Adobe Audience Manager
since Aug 2022
Static site generator
Astro
since Jun 2026
Tag managers
Google Tag Manager
since Apr 2018
UI frameworks
Animate.css
since Jun 2024
Pure CSS
since Dec 2021
Radix UI
since Jun 2025
shadcn/ui
since Jun 2025
Tailwind CSS
since Apr 2022
UIKit
since Oct 2024
Web frameworks
Express
since Nov 2020
Ruby on Rails
since Mar 2026
Web servers
Webmail
Google Workspace
since Aug 2022
Top search keywords
| Keyword | Position | Est. monthly visits |
|---|---|---|
| lbs i kg | #13 | 5,900 |
| meters to inches | #4 | 4,000 |
| derivative of cotangent | #2 | 3,600 |
| meters to km | #5 | 3,500 |
| enforcement directorate | #9 | 3,400 |
| kg in lbs | #79 | 3,200 |
| inch cm | #49 | 3,200 |
| milk is a poor source of | #1 | 3,000 |
| kg to lbs | #49 | 2,400 |
| kg a lb | #62 | 2,400 |
| pound kilo | #44 | 2,100 |
| lbs to k | #32 | 2,100 |
| meter in feet | #16 | 1,900 |
| m to km | #7 | 1,900 |
| how many seconds in a day | #12 | 1,700 |
| lbs in kilo | #14 | 1,700 |
| meters in a kilometer | #8 | 1,500 |
| lot square footage to acres | #13 | 1,500 |
| 59 f to c | #3 | 1,400 |
| synonyms | #35 | 1,400 |
| inches to cm | #42 | 1,400 |
| communist party of india | #10 | 1,200 |
| m in a km | #9 | 1,100 |
| act exam scores | #8 | 1,100 |
| inch in cm | #47 | 1,100 |
The site's top keywords in Google (US), with the visits each one is estimated to bring per month.
Top backlinks
Top links pointing at the site, one per source domain, strongest first. The anchor text opens the page carrying the link.
Audience
- 48% desktop
- 47% phone
- 5% tablet
India
United Arab Emirates
Japan
United Kingdom
France
Canada
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
6.75 / 10 · ranked #59,370 of all domains
783 referring domains · OpenPageRank
Search traffic
678,000 est. monthly organic visits (US)
517,857 keywords in Google's top 30
Core Web Vitals
| LCP | 3.5 s |
| INP | 200 ms |
| CLS | 0.15 |
| TTFB | 1300 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: English
- CDN: Cloudflare, Google
- Weight: 5.8 MB · 248 requests
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| www.testbook.com | 29 |
| testbook.com | 27 |
| blue.testbook.com | 24 |
| books.testbook.com | 24 |
| canary.testbook.com | 22 |
| lms.testbook.com | 22 |
| ocrm.testbook.com | 22 |
| angular.testbook.com | 20 |
| superpass.testbook.com | 20 |
| labs.testbook.com | 19 |
| helpdesk.testbook.com | 17 |
| myot-beta.testbook.com | 16 |
| dashboard.testbook.com | 14 |
| superpasslive.testbook.com | 12 |
| ugcnetjrf.testbook.com | 12 |
| cut-off-score-predictor.testbook.com | 11 |
| mpscrajyaseva2027.testbook.com | 11 |
| mpscrajyasevagsp.testbook.com | 11 |
| pass.testbook.com | 11 |
| status.testbook.com | 11 |
| ugcnetcutoff.testbook.com | 11 |
| gcc.testbook.com | 10 |
| support.testbook.com | 10 |
| ugcnet.testbook.com | 10 |
Full technology history →
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Recent changes
- dropped Preact Jun 2026
- dropped Quora Pixel Jun 2026
- dropped Shopify Chat Jun 2026
- detected WhatsApp Business Chat Apr 2026
- detected Amazon S3 Mar 2026
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- dropped styled-components Feb 2026
- detected Judge.me Dec 2025
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- dropped Judge.me Aug 2025
- detected libphonenumber Aug 2025
- detected styled-components Aug 2025