What powers 4sigma.it?
Last seen Aug 2026 · 8 technologies across 7 categories
Authentication
Facebook Login
since Jun 2025
Google Workspace
since Jun 2025
Sendgrid
since Aug 2026
JavaScript libraries
Miscellaneous
Open Graph
since Jun 2025
Programming languages
Python
since Jun 2025
Web frameworks
Django
since Jun 2025
Web servers
Nginx
since Jun 2025
AI Crawlers
No robots.txt, so all AI crawlers are allowed by default. Checked Sep 2026.
- robots.txt not found
- llms.txt not found
- ai.txt not found
AI Crawlers
No robots.txt, all AI crawlers allowed
Open Page Rank
3.02 / 10 · ranked #1,548,636 of all domains
13 referring domains · OpenPageRank
Infrastructure
- DNS: dns4userver.com
- Email: Google Workspace
- Email security: no SPF record, no DMARC record
- Common Crawl link graph: rank 10,642,509, 10 hosts
DNS records as swept Sep 2026. How the web is hosted