What powers 21stcr.org?
Last seen Jun 2026 · 37 technologies across 19 categories
Analytics
Google Analytics
since Oct 2020
CDN
Cloudflare
since Jan 2025
CMS
WordPress
since Oct 2020
Databases
MySQL
since Oct 2020
Hosting
GoDaddy
since Aug 2022
JavaScript frameworks
GSAP
since Oct 2020
JavaScript libraries
LazySizes
since Feb 2022
lite-youtube-embed
since Jun 2022
Select2
since Jun 2021
Swiper
since Feb 2024
Miscellaneous
Performance
Priority Hints
since Sep 2023
Programming languages
PHP
since Oct 2020
Retargeting
Google Remarketing Tag
since Jul 2021
Security
Cloudflare Bot Management
since Dec 2025
HSTS
since Sep 2022
Really Simple SSL & Security
since Apr 2024
Sucuri
since Oct 2020
Tag managers
Google Tag Manager
since Mar 2021
UI frameworks
Video players
Web servers
Nginx
since Oct 2020
Webmail
Microsoft 365
since Aug 2022
Widgets
WordPress plugins
MonsterInsights
since Feb 2022
ProfilePress
since Oct 2022
The Events Calendar
since Jun 2022
WP Rocket
since Oct 2021
Yoast SEO
since Jul 2021
Audience
- 64% phone
- 36% desktop
United States
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
2.08 / 10 · ranked #3,378,127 of all domains
13 referring domains · OpenPageRank
Page
- Language: English (United States)
- CDN: Sucuri Firewall
- Weight: 1.8 MB · 52 requests
- WordPress theme: avada · all themes
- Structured data: JSON-LD, Microdata, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| 21stcr.org | 32 |
| www.21stcr.org | 17 |
Full technology history →
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Recent changes
- dropped Stripe Apr 2026
- dropped EmbedPlus Mar 2026
- dropped Google Font API Mar 2026
- detected EmbedPlus Jan 2026
- detected Google Font API Jan 2026
- detected Cloudflare Bot Management Dec 2025
- dropped Yoast SEO Premium Nov 2025
- dropped EmbedPlus Sep 2025
- dropped Google Font API Sep 2025