What powers building0.com?
Last seen Aug 2026 · 10 technologies across 9 categories
Analytics
CDN
Font scripts
JavaScript libraries
Maps
Miscellaneous
Programming languages
Security
Web servers
AI Crawlers
Restricts 9 of 33 AI crawlers we track by name in its robots.txt. Checked Sep 2026.
Training crawlers
- ClaudeBot Restricted
- Google-Extended Restricted
- GPTBot Restricted
Search and AI assistants
- Claude-SearchBot Restricted
- OAI-SearchBot Restricted
- PerplexityBot Restricted
User-request fetchers
- ChatGPT-User Restricted
- Claude-User Restricted
- Perplexity-User Restricted
The other 24 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
- ai.txt not found
AI Crawlers
9 of 33 AI crawlers restricted
Standards: llms.txt
Audience
- 98% desktop
- 2% phone
South Korea
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
0.11 / 10 · ranked #86,661,873 of all domains
0 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.6 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 100 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Korean
- Weight: 1.3 MB · 55 requests
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Aug 2026.
Subdomains
| Host | Techs |
|---|---|
| building0.com | 8 |
| www.building0.com | 7 |