What powers promptessor.com?
Last seen Sep 2026 · 20 technologies across 10 categories
Analytics
Authentication
CDN
Hosting
JavaScript frameworks
Miscellaneous
Performance
Programming languages
Security
UI frameworks
AI Crawlers
Restricts 22 of 33 AI crawlers we track by name in its robots.txt. Checked Sep 2026.
Training crawlers
- Applebot-Extended Restricted
- Bytespider Restricted
- CCBot Restricted
- ClaudeBot Restricted
- cohere-training-data-crawler Restricted
- FacebookBot Restricted
- Google-Extended Restricted
- GoogleOther Restricted
- GPTBot Restricted
- meta-externalagent Restricted
- Webzio-Extended Restricted
Search and AI assistants
- Amazonbot Restricted
- Applebot Restricted
- Claude-SearchBot Restricted
- DuckAssistBot Restricted
- OAI-SearchBot Restricted
- PerplexityBot Restricted
- YouBot Restricted
User-request fetchers
- ChatGPT-User Restricted
- Claude-User Restricted
- meta-externalfetcher Restricted
- Perplexity-User Restricted
The other 11 AI crawlers we track are not mentioned and only inherit the catch-all rules that apply to every crawler.
- robots.txt found
- llms.txt found
- llms-full.txt found
- ai.txt not found
- Sep 2026 ccbot: Restricted (was Allowed)
- Sep 2026 youbot: Restricted (was Allowed)
- Sep 2026 claude-searchbot added to robots.txt
- Sep 2026 claude-user added to robots.txt
- Sep 2026 chatgpt-user: Restricted (was Allowed)
- Sep 2026 claude-web: Restricted (was Allowed)
AI Crawlers
22 of 33 AI crawlers restricted
Standards: llms.txt, llms-full.txt
Audience
- 57% phone
- 43% desktop
India
United States
Indonesia
Russia
Pakistan
Bangladesh
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
2.95 / 10 · ranked #1,685,401 of all domains
84 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.3 s |
| INP | 100 ms |
| CLS | 0.05 |
| TTFB | 1100 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: English
- CDN: Cloudflare
- Weight: 1.6 MB · 103 requests
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
- PrompTessor
- Industry: Software and apps (declares
SoftwareApplication) - Profiles: X
From the homepage's own structured data (Sep 2026).
Infrastructure
- Hosted on Cloudflare (104.21.81.225)
- DNS: Cloudflare DNS
- Email: Hostinger
- Email security: SPF (soft fail), DMARC monitor only
- SSL: Google Trust Services, ECDSA P256, wildcard, expires Nov 2026
- Common Crawl link graph: rank 1,095,457, 3 hosts
- Verified with: Google
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Full technology history →
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Recent changes
- detected Cloudflare Browser Insights Sep 2026
- detected Unpkg Sep 2026
- dropped YouTube Jul 2026
- detected Cloudflare May 2026
- detected Cloudflare Bot Management May 2026
- dropped Cloudflare Mar 2026
- dropped Cloudflare Bot Management Mar 2026
- detected Cloudflare Nov 2025
- detected Cloudflare Bot Management Nov 2025
- detected Product Hunt Nov 2025