What powers 
thedeck.jp?
Last seen Sep 2026 · 35 technologies across 19 categories
Advertising
Analytics
CDN
CMS
Databases
Ecommerce
Font scripts
JavaScript frameworks
JavaScript libraries
Miscellaneous
PaaS
Page builders
Performance
Programming languages
Security
Tag managers
Web servers
Webmail
WordPress plugins
AI Crawlers
Doesn't name any of the 33 AI crawlers we track in its robots.txt. Catch-all rules (User-agent: *) restrict some paths for every crawler, AI or not. Checked Oct 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
- Oct 2026 gptbot removed from robots.txt
- Oct 2026 bytespider removed from robots.txt
- Oct 2026 claudebot removed from robots.txt
- Oct 2026 ccbot removed from robots.txt
- Oct 2026 cohere-ai removed from robots.txt
- Oct 2026 ai2bot removed from robots.txt
AI Crawlers
No AI crawlers blocked
Audience
- 58% desktop
- 42% phone
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.64 / 10 · ranked #381,376 of all domains
82 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.8 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 900 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Japanese
- Weight: 8.0 MB · 127 requests
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
From the homepage's own structured data (Oct 2026).
Infrastructure
- Hosted on Sakura Internet (133.167.8.59)
- DNS: Onamae.com
- Email: Google Workspace
- Email security: SPF (soft fail), DMARC monitor only
- SSL: Let's Encrypt, RSA 2048, expires Jan 2027
- Common Crawl link graph: rank 7,170,785, 3 hosts
- Verified with: Google
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| thedeck.jp | 24 |
| en.thedeck.jp | 16 |
Full technology history →
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Recent changes
- dropped Angular Sep 2026
- dropped TypeScript Sep 2026
- dropped Zone.js Sep 2026
- detected Hammer.js Jun 2026
- detected jQuery Migrate Jun 2026
- detected Angular Apr 2026
- detected TypeScript Apr 2026
- detected Zone.js Apr 2026
- dropped Emotion Nov 2025
- dropped reCAPTCHA Nov 2025