What powers 
mastcellaction.org?
Last seen Oct 2026 · 11 technologies across 10 categories
Analytics
Google Analytics
since Jan 2019
Font scripts
Google Font API
since Jul 2021
Hosting
GoDaddy
since Aug 2022
JavaScript libraries
Programming languages
PHP
since Sep 2021
Security
reCAPTCHA
since Jan 2019
Tag managers
Google Tag Manager
since Apr 2021
Web frameworks
Nette Framework
since Mar 2025
Web servers
Nginx
since Jan 2019
Webmail
Microsoft 365
since Aug 2022
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 Nov 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 77% phone
- 23% desktop
United States
United Kingdom
Canada
Australia
New Zealand
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.78 / 10 · ranked #725,472 of all domains
76 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.5 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 500 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: English
- Weight: 8.5 MB · 36 requests
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- Hosted on Amazon Web Services (18.169.11.51)
- DNS: GoDaddy DNS
- Email: Microsoft 365
- Email security: SPF (hard fail), DMARC monitor only
- SSL: Let's Encrypt, ECDSA P256, expires Dec 2026
- Common Crawl link graph: rank 561,639, 2 hosts
- Verified with: Brevo, Google
DNS records as swept Nov 2026, certificate as seen Nov 2026. How the web is hosted