What powers 
gref.org?
Last seen Jun 2025 · 38 technologies across 16 categories
Advertising
Microsoft Advertising
since Jun 2025
CDN
CMS
Framer Sites
since Jun 2025
Cookie compliance
CookieYes
since Jun 2025
Databases
MySQL
since Dec 2022
Font scripts
Google Font API
since Dec 2022
JavaScript frameworks
JavaScript libraries
Miscellaneous
Performance
Priority Hints
since Sep 2023
Programming languages
PHP
since Apr 2020
Security
UI frameworks
Web servers
Nginx
since Nov 2023
Widgets
WordPress plugins
MetaSlider
since Dec 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 Sep 2026.
- robots.txt found
- llms.txt not checked
- ai.txt not checked
AI Crawlers
No AI crawlers blocked
Open Page Rank
3.51 / 10 · ranked #879,300 of all domains
32 referring domains · OpenPageRank
Infrastructure
- Hosted on NICALIAINTERNET Nicalia Internet, S.L.U (92.60.32.51)
- DNS: raiolanetworks.es
- Email: gref.org
- Email security: SPF (hard fail), DMARC quarantine
- SSL: Let's Encrypt, RSA 2048, wildcard, expires Oct 2026
- Common Crawl link graph: rank 154,285, 3 hosts
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted