What powers ydk.vc?
Last seen Sep 2026 · 25 technologies across 14 categories
Analytics
Cloudflare Browser Insights
since Feb 2024
Google Analytics
since Feb 2022
Caching
Litespeed Cache
since Sep 2023
CDN
Cloudflare
since Feb 2024
CMS
WordPress
since Feb 2022
Databases
MySQL
since Feb 2022
JavaScript frameworks
JavaScript libraries
Miscellaneous
HTTP/3
since Sep 2022
Open Graph
since Sep 2022
Prism
since Feb 2022
PWA
since Sep 2026
RSS
since Dec 2022
Performance
Cloudflare Rocket Loader
since Feb 2024
Priority Hints
since Sep 2026
Programming languages
PHP
since Feb 2022
Security
HSTS
since Apr 2024
Tag managers
Google Tag Manager
since Feb 2022
UI frameworks
WordPress plugins
AI Crawlers
Doesn't mention any of the 33 AI crawlers we track in its robots.txt; all are allowed by default. Checked Oct 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
- Sep 2026 bytespider removed from robots.txt
- Sep 2026 amazonbot removed from robots.txt
- Sep 2026 applebot-extended removed from robots.txt
- Sep 2026 meta-externalagent removed from robots.txt
- Sep 2026 ccbot removed from robots.txt
- Sep 2026 claudebot removed from robots.txt
AI Crawlers
No AI crawlers blocked
Audience
- 94% desktop
- 6% phone
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
1.01 / 10 · ranked #12,329,693 of all domains
2 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.8 s |
| INP | 25 ms |
| CLS | 0 |
| TTFB | 300 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Japanese
- CDN: Cloudflare
- Weight: 1.1 MB · 37 requests
- Structured data: OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- Hosted on Cloudflare (104.21.93.161, IPv6)
- DNS: Cloudflare DNS
- Email: bab.dad
- Email security: SPF (soft fail), DMARC monitor only, CAA
- SSL: Google Trust Services, ECDSA P256, wildcard, expires Dec 2026
- Common Crawl link graph: rank 129,973
- Verified with: Google, OpenAI
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Full technology history →
Report an incorrect detection
Recent changes
- detected Astro Sep 2026
- detected Base UI Sep 2026
- dropped LiteSpeed Sep 2026
- detected Priority Hints Sep 2026
- detected PWA Sep 2026
- detected Radix UI Sep 2026
- detected React Sep 2026
- detected Tailwind CSS Sep 2026
- detected Cloudflare Browser Insights Aug 2026
- detected Cloudflare Rocket Loader Aug 2026
- detected HSTS Aug 2026
- detected Litespeed Cache Aug 2026
- dropped Cloudflare Browser Insights May 2026
- dropped Cloudflare Rocket Loader May 2026
- dropped HSTS May 2026
- dropped Litespeed Cache May 2026
- detected LiteSpeed Apr 2026