What powers progroups.org?
Last seen Aug 2026 · 30 technologies across 16 categories
Analytics
Google Analytics
since Apr 2023
CDN
Amazon S3
since Nov 2022
cdnjs
since Nov 2022
Cloudflare
since Nov 2022
jsDelivr
since Nov 2022
Microsoft Ajax Content Delivery Network
since Nov 2022
Cookie compliance
TrustArc
since Apr 2024
Font scripts
JavaScript frameworks
React
since Nov 2022
JavaScript graphics
Chart.js
since Nov 2022
JavaScript libraries
Load balancers
Amazon ALB
since Sep 2023
Miscellaneous
Open Graph
since Nov 2022
Prism
since Nov 2022
PaaS
Amazon Web Services
since Nov 2022
Security
HSTS
since Nov 2022
Tag managers
Google Tag Manager
since Apr 2023
UI frameworks
Video players
Web frameworks
Microsoft ASP.NET
since Nov 2022
Webmail
Google Workspace
since Apr 2023
AI Crawlers
Doesn't name any of the 33 AI crawlers we track in its robots.txt. Catch-all rules (User-agent: *) restrict some paths for every crawler, AI or not. Checked Sep 2026.
- robots.txt found
- llms.txt not checked
- ai.txt not checked
AI Crawlers
No AI crawlers blocked
Audience
- 100% desktop
United States
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
1.86 / 10 · ranked #4,009,234 of all domains
7 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.3 s |
| INP | 25 ms |
| CLS | 0.05 |
| TTFB | 1300 ms |
Real user p75, Chrome UX Report, Aug 2026.
Infrastructure
- Hosted on Amazon Web Services (52.6.165.57)
- Email: Google Workspace
- Email security: no SPF record, no DMARC record
- SSL: Let's Encrypt, RSA 2048, expires Oct 2026
- Common Crawl link graph: rank 10,859,847, 2 hosts
- Verified with: Google
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| progroups.org | 30 |
| www.progroups.org | 30 |
Full technology history →
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Recent changes
- dropped core-js Aug 2026