What powers castlebiosciences.com?
Last seen Jun 2026 · 45 technologies across 22 categories
Advertising
Microsoft Advertising
since Nov 2025
Analytics
Google Analytics
since Feb 2020
Linkedin Insight Tag
since Oct 2022
Snowplow Analytics
since Oct 2022
CDN
Amazon CloudFront
since Jun 2026
cdnjs
since May 2026
Cloudflare
since Oct 2022
Google Hosted Libraries
since Nov 2025
jsDelivr
since Sep 2020
Cookie compliance
CookieYes
since Nov 2025
CRM
Q4
since Oct 2022
Salesforce
since Nov 2023
Ecommerce
Cart Functionality
since Nov 2021
Mailgun
since May 2026
Font scripts
Google Font API
since Feb 2020
JavaScript frameworks
JavaScript libraries
Marketing automation
HubSpot
since May 2023
Salesforce Marketing Cloud Account Engagement
since Dec 2022
Miscellaneous
PaaS
Amazon Web Services
since Jun 2026
Page builders
Webflow
since Nov 2025
Programming languages
Java
since May 2026
Security
Tag managers
Google Tag Manager
since Feb 2020
UI frameworks
Bootstrap
since Dec 2023
Video players
Web frameworks
Microsoft ASP.NET
since Oct 2022
Web servers
Apache HTTP Server
since Feb 2020
Webmail
Microsoft 365
since Jan 2026
Audience
- 50% desktop
- 50% phone
United States
India
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
4.69 / 10 · ranked #324,415 of all domains
118 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.9 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 1000 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: English
- CDN: Cloudflare
- Weight: 4.6 MB · 180 requests
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| ir.castlebiosciences.com | 30 |
| www.castlebiosciences.com | 27 |
| castlebiosciences.com | 21 |
Full technology history →
Report an incorrect detection
Recent changes
- detected Amazon CloudFront Jun 2026
- detected Amazon Web Services Jun 2026
- detected Apache HTTP Server Jun 2026
- detected Bootstrap Jun 2026
- detected PWA Jun 2026
- detected RSS Jun 2026
- detected VideoJS Jun 2026
- detected Microsoft 365 Jan 2026
- dropped Bootstrap Dec 2025
- dropped Cloudflare Bot Management Dec 2025
- dropped core-js Dec 2025
- dropped HubSpot Analytics Dec 2025
- dropped Linkedin Insight Tag Dec 2025
- dropped Matomo Analytics Dec 2025
- dropped Nginx Dec 2025
- dropped OneTrust Dec 2025
- dropped PHP Dec 2025
- dropped Pimcore Dec 2025
- dropped Priority Hints Dec 2025
- dropped theTradeDesk Dec 2025
- detected CookieYes Nov 2025
- detected Google Hosted Libraries Nov 2025
- detected GSAP Nov 2025
- detected HTTP/3 Nov 2025
- detected Microsoft Advertising Nov 2025
- detected Webflow Nov 2025
- detected Webpack Nov 2025