What powers 
doublezero.xyz?
Last seen Oct 2026 · 34 technologies across 18 categories
Advertising
Analytics
Authentication
CDN
Development
Documentation
Font scripts
Issue trackers
JavaScript frameworks
JavaScript graphics
Miscellaneous
PaaS
Performance
Programming languages
Security
Tag managers
UI frameworks
Webmail
AI Crawlers
Blocks 3 of 33 AI crawlers we track by name in its robots.txt. Checked Nov 2026.
Training crawlers
- AI2Bot Blocked
- Bytespider Blocked
- CCBot Blocked
- Applebot-Extended Allowed
- ClaudeBot Allowed
- cohere-training-data-crawler Allowed
- FacebookBot Allowed
- Google-Extended Allowed
- GPTBot Allowed
- meta-externalagent Allowed
Search and AI assistants
- Amazonbot Allowed
- Claude-SearchBot Allowed
- DuckAssistBot Allowed
- OAI-SearchBot Allowed
- PerplexityBot Allowed
- YouBot Allowed
User-request fetchers
- ChatGPT-User Allowed
- Claude-User Allowed
- MistralAI-User Allowed
The other 14 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
Content Signals:
search=yes ai-train=no ai-input=yes declared in robots.txt
- Nov 2026 facebookbot added to robots.txt
- Nov 2026 applebot-extended added to robots.txt
- Nov 2026 bytespider added to robots.txt
- Nov 2026 ccbot added to robots.txt
- Nov 2026 amazonbot added to robots.txt
- Nov 2026 Content Signals changed
AI Crawlers
3 of 33 AI crawlers blocked
Standards: llms.txt, llms-full.txt, Content Signals
Audience
- 76% desktop
- 24% phone
United States
India
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.69 / 10 · ranked #341,807 of all domains
158 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.9 s |
| INP | 100 ms |
| CLS | 0.25 |
| TTFB | 400 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: English
- CDN: Vercel
- Weight: 2.3 MB · 139 requests
- Structured data: OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- Registered May 2024 (2 years) via Cloudflare, Inc., renews May 2027
- Hosted on Amazon Web Services (216.150.1.1)
- DNS: Cloudflare DNS
- Email: Google Workspace
- Email security: SPF (soft fail), DMARC quarantine, DNSSEC signed
- SSL: Let's Encrypt, RSA 2048, expires Jan 2027
- Common Crawl link graph: rank 2,262,758, 7 hosts
- Verified with: Airtable, Google
DNS records as swept Nov 2026, certificate as seen Nov 2026, registration from the registry's RDAP service. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| doublezero.xyz | 22 |
| data.doublezero.xyz | 9 |
| economics.doublezero.xyz | 9 |
| docs.doublezero.xyz | 7 |
Full technology history →
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