What powers psr.org?
Last seen Jun 2026 · 45 technologies across 24 categories
Accessibility
UserWay
since Nov 2023
Advertising
Twitter Ads
since Oct 2021
Analytics
Google Analytics
since Aug 2018
Caching
CDN
jsDelivr
since Jul 2020
CMS
WordPress
since Aug 2018
Databases
MySQL
since Aug 2018
Font scripts
Font Awesome
since Aug 2018
Google Font API
since Aug 2018
Twitter Emoji (Twemoji)
since Aug 2018
Typekit
since Feb 2021
Fundraising & donations
EveryAction
since Feb 2023
JavaScript frameworks
GSAP
since Apr 2020
JavaScript libraries
Miscellaneous
Mobile frameworks
Performance
Priority Hints
since Feb 2024
Programming languages
Security
SEO
Tag managers
Google Tag Manager
since Feb 2020
UI frameworks
Animate.css
since Feb 2020
Video players
Web servers
Webmail
Google Workspace
since Aug 2022
Widgets
Twitter
since Oct 2021
WordPress plugins
Beaver Builder
since Jul 2024
The Events Calendar
since Sep 2022
Top search keywords
| Keyword | Position | Est. monthly visits |
|---|---|---|
| compendium | #29 | 47 |
| what is the doomsday clock | #17 | 35 |
| trinity bomb | #43 | 21 |
| triclosan | #38 | 14 |
| physician for social responsibility | #1 | 12 |
| oregon physicians for social responsibility | #3 | 11 |
| physicians for | #3 | 11 |
| fracking in ohio | #5 | 10 |
| fracking in ohio | #5 | 10 |
| what is coal ash | #6 | 9 |
| what time is it on the doomsday clock | #11 | 9 |
| psr medicine | #1 | 9 |
| 500 warhead scenario | #4 | 9 |
| fracking in co | #4 | 9 |
| fracking in co | #4 | 9 |
| when is doomsday | #15 | 8 |
| how long is 89 seconds to midnight | #5 | 8 |
| current doomsday clock | #10 | 8 |
| american nuclear policy | #5 | 7 |
| midnight clock | #21 | 7 |
| 80th anniversary of hiroshima | #4 | 7 |
| social responsibility of physicians | #2 | 6 |
| psr healthcare | #3 | 6 |
| say no to blue angels billboard | #4 | 5 |
| psr company | #3 | 5 |
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
- 61% desktop
- 39% phone
United States
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
6.93 / 10 · ranked #49,262 of all domains
905 referring domains · OpenPageRank
Search traffic
530 est. monthly organic visits (US)
655 keywords in Google's top 30
Core Web Vitals
| LCP | 3.1 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 2300 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: English (United States)
- Weight: 2.8 MB · 64 requests
- WordPress theme: bb-theme · all themes
- Structured data: JSON-LD, Microdata, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| www.psr.org | 30 |
| psr.org | 24 |
| secure.psr.org | 20 |
| action.psr.org | 15 |