What powers isotopes.gov?
Last seen Jun 2026 · 18 technologies across 13 categories
Analytics
Siteimprove
since Feb 2023
Caching
Varnish
since May 2023
CDN
CMS
Databases
MariaDB
since May 2023
Ecommerce
Cart Functionality
since Dec 2021
Font scripts
Font Awesome
since Mar 2020
JavaScript libraries
PaaS
Pantheon
since May 2023
Programming languages
PHP
since Jan 2019
Security
HSTS
since Sep 2022
UI frameworks
Web servers
Nginx
since Mar 2020
Audience
- 73% desktop
- 27% phone
United States
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
4.18 / 10 · ranked #465,126 of all domains
61 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.5 s |
| INP | 25 ms |
| CLS | 0 |
| TTFB | 700 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: English
- CDN: Fastly
- Weight: 6.9 MB · 104 requests
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| isotopes.gov | 18 |
| www.isotopes.gov | 18 |