What powers fsx.org.br?
Last seen Sep 2026 · 20 technologies across 10 categories
Analytics
CDN
Development
JavaScript frameworks
Miscellaneous
PaaS
Performance
Programming languages
Security
UI frameworks
AI Crawlers
Blocks 18 of 33 AI crawlers we track by name in its robots.txt. Checked Sep 2026.
Training crawlers
- Applebot-Extended Blocked
- Bytespider Blocked
- CCBot Blocked
- ClaudeBot Blocked
- cohere-training-data-crawler Blocked
- Diffbot Blocked
- Google-CloudVertexBot Blocked
- Google-Extended Blocked
- GoogleOther Blocked
- GPTBot Blocked
- meta-externalagent Blocked
Search and AI assistants
- Amazonbot Blocked
- PetalBot Blocked
User-request fetchers
- ChatGPT-User Blocked
- Claude-User Blocked
- meta-externalfetcher Blocked
- MistralAI-User Blocked
- Perplexity-User Blocked
The other 15 AI crawlers we track are not mentioned and stay allowed by default.
- robots.txt found
- llms.txt not found
- ai.txt not found
Content Signals:
search=yes ai-train=no declared in robots.txt
- Sep 2026 bytespider added to robots.txt
- Sep 2026 ccbot added to robots.txt
- Sep 2026 chatgpt-user added to robots.txt
- Sep 2026 claudebot added to robots.txt
- Sep 2026 claude-web added to robots.txt
- Sep 2026 claude-user added to robots.txt
AI Crawlers
18 of 33 AI crawlers blocked
Standards: Content Signals
Audience
- 100% phone
Brazil
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
1.11 / 10 · ranked #10,923,751 of all domains
1 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.6 s |
| INP | 300 ms |
| CLS | 0 |
| TTFB | 500 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Portuguese (Brazil)
- CDN: Cloudflare
- Weight: 1.1 MB · 121 requests
- Structured data: OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on Cloudflare (104.21.32.196, IPv6)
- DNS: Cloudflare DNS
- Email: no MX record returned
- SSL: Google Trust Services, ECDSA P256, wildcard, expires Nov 2026
- Common Crawl link graph: rank 1,921,012, 2 hosts
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Full technology history →
Report an incorrect detection
Recent changes
- detected Base UI Sep 2026
- detected Cloudflare Sep 2026
- detected Cloudflare Browser Insights Sep 2026
- detected HTTP/3 Sep 2026
- detected TanStack Start Sep 2026
- dropped WhatsApp Business Chat Jun 2026
- detected Priority Hints Nov 2025