What powers classstart.org?
Last seen Jul 2026 · 23 technologies across 20 categories
Advertising
Analytics
CDN
Cookie compliance
Font scripts
JavaScript frameworks
JavaScript graphics
JavaScript libraries
Miscellaneous
PaaS
Performance
Programming languages
Retargeting
Security
Tag managers
Video players
Web frameworks
Web servers
Webmail
AI Crawlers
Blocks 8 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
- Google-Extended Blocked
- GPTBot Blocked
- meta-externalagent Blocked
Search and AI assistants
- Amazonbot Blocked
The other 25 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 checked
- ai.txt not checked
Content Signals:
search=yes ai-train=no declared in robots.txt
- Aug 2026 *: Restricted (was Allowed)
- Aug 2026 *: Allowed (was Restricted)
AI Crawlers
8 of 33 AI crawlers blocked
Standards: Content Signals
Audience
- 67% phone
- 26% desktop
- 7% tablet
Thailand
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
2.01 / 10 · ranked #3,556,184 of all domains
13 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.9 s |
| INP | 125 ms |
| CLS | 0.05 |
| TTFB | 2000 ms |
Real user p75, Chrome UX Report, Aug 2026.
Subdomains
| Host | Techs |
|---|---|
| www.classstart.org | 15 |
| books.classstart.org | 13 |
| app.classstart.org | 9 |