What powers foursided.com?
Last seen Sep 2026 · 34 technologies across 12 categories
CDN
Ecommerce
Font scripts
Hosting
JavaScript frameworks
JavaScript libraries
Marketing automation
Miscellaneous
Payment processors
Performance
Security
Webmail
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 found
- llms-full.txt found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Standards: llms.txt, llms-full.txt
Audience
- 71% desktop
- 29% phone
United States
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
2.89 / 10 · ranked #1,789,210 of all domains
39 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.6 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 300 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: English
- CDN: Cloudflare
- Weight: 3.4 MB · 329 requests
- Structured data: Microdata, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- Hosted on Cloudflare (23.227.38.65, IPv6)
- DNS: GoDaddy DNS
- Email: Google Workspace
- Email security: no SPF record, no DMARC record
- SSL: Let's Encrypt, ECDSA P256, expires Oct 2026
- Common Crawl link graph: rank 2,933,320, 2 hosts
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Full technology history →
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