What powers 4us.monster?
Last seen Aug 2026 · 13 technologies across 8 categories
Analytics
CDN
JavaScript libraries
Load balancers
Miscellaneous
PaaS
Security
UI frameworks
AI Crawlers
Blocks 16 of 33 AI crawlers we track by name in its robots.txt. Checked Aug 2026.
Training crawlers
- Applebot-Extended Blocked
- Bytespider Blocked
- CCBot Blocked
- ClaudeBot Blocked
- Diffbot Blocked
- FacebookBot Blocked
- Google-Extended Blocked
- GPTBot Blocked
- ImagesiftBot Blocked
- meta-externalagent Blocked
- Webzio-Extended Blocked
Search and AI assistants
- Amazonbot Blocked
- Applebot Blocked
- PerplexityBot Blocked
- YouBot Blocked
User-request fetchers
- ChatGPT-User Blocked
The other 17 AI crawlers we track are not mentioned and only inherit the catch-all rules that apply to every crawler.
- robots.txt found
- llms.txt not found
- ai.txt not found
Content Signals:
search=yes ai-train=no declared in robots.txt
AI Crawlers
16 of 33 AI crawlers blocked
Standards: Content Signals
Audience
- 86% phone
- 14% desktop
United States
Japan
Brazil
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
0.26 / 10 · ranked #66,215,053 of all domains
0 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.5 s |
| INP | 300 ms |
| CLS | 0.6 |
| TTFB | 1000 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- CDN: Cloudflare
- Weight: 10.9 MB · 364 requests
Homepage as crawled by the HTTP Archive, Sep 2026.
Full technology history →
Report an incorrect detection
Recent changes
- dropped Bunny Aug 2026
- detected Amazon ALB Jul 2026
- detected Amazon Web Services Jul 2026
- detected Cloudflare Bot Management May 2026
- detected Bunny Apr 2026