What powers classvel.com?
Last seen Sep 2026 · 13 technologies across 10 categories
CDN
Font scripts
Hosting
JavaScript frameworks
JavaScript graphics
JavaScript libraries
Miscellaneous
Operating systems
UI frameworks
Web servers
AI Crawlers
Blocks 18 of 33 AI crawlers we track by name in its robots.txt. Checked Oct 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 checked
- ai.txt not checked
Content Signals:
search=yes ai-train=no declared in robots.txt
- Oct 2026 meta-externalagent added to robots.txt
- Oct 2026 chatgpt-user added to robots.txt
- Oct 2026 claude-user added to robots.txt
- Oct 2026 claudebot added to robots.txt
- Oct 2026 ccbot added to robots.txt
- Oct 2026 claude-web added to robots.txt
AI Crawlers
18 of 33 AI crawlers blocked
Standards: Content Signals
Audience
- 96% phone
- 4% desktop
Bangladesh
Where the site's Chrome visitors come from, largest estimated audience first.
Core Web Vitals
| LCP | 3 s |
| INP | 200 ms |
| CLS | 0.15 |
| TTFB | 300 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: English
- CDN: Cloudflare
- Weight: 6.3 MB · 41 requests
- Structured data: OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- Hosted on Cloudflare (104.21.29.234, IPv6)
- DNS: Cloudflare DNS
- Email: no MX record returned
- SSL: Let's Encrypt, ECDSA P256, wildcard, expires Jan 2027
- Verified with: Google
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| classvel.com | 13 |
| www.classvel.com | 13 |
Full technology history →
Report an incorrect detection
Recent changes
- detected Ant Design Sep 2026
- dropped AOS Sep 2026
- dropped Cloudflare Sep 2026
- dropped Cloudflare Browser Insights Sep 2026
- detected Cloudinary Sep 2026
- dropped core-js Sep 2026
- dropped DigitalOcean Spaces Sep 2026
- dropped Google Analytics Sep 2026
- dropped Google Tag Manager Sep 2026
- dropped Headless UI Sep 2026
- dropped HSTS Sep 2026
- dropped HTTP/3 Sep 2026
- dropped Node.js Sep 2026
- dropped Nuxt.js Sep 2026
- dropped Plyr Sep 2026
- dropped Priority Hints Sep 2026
- dropped Tailwind CSS Sep 2026
- dropped Vercel Sep 2026
- dropped Vue.js Sep 2026
- dropped WhatsApp Business Chat Sep 2026
- dropped YouTube Sep 2026
- detected Google Font API Aug 2026
- detected Hostinger Aug 2026
- detected jsDelivr Aug 2026
- detected KaTeX Aug 2026
- detected Nginx Aug 2026
- detected React Aug 2026
- detected React Router Aug 2026
- detected Ubuntu Aug 2026
- detected WhatsApp Business Chat Dec 2025