What powers 
redish.jp?
Last seen Sep 2026 · 27 technologies across 15 categories
Advertising
Analytics
CDN
Development
Font scripts
JavaScript frameworks
JavaScript libraries
Miscellaneous
PaaS
Performance
Programming languages
Security
Tag managers
UI frameworks
AI Crawlers
Restricts 11 of 33 AI crawlers we track by name in its robots.txt. Checked Oct 2026.
Training crawlers
- Applebot-Extended Restricted
- CCBot Restricted
- 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 22 AI crawlers we track are not mentioned and only inherit the catch-all rules that apply to every crawler.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
11 of 33 AI crawlers restricted
Audience
- 71% desktop
- 29% phone
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.57 / 10 · ranked #829,652 of all domains
18 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.8 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 300 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Japanese
- CDN: Vercel
- Weight: 8.0 MB · 154 requests
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
From the homepage's own structured data (Sep 2026).
Infrastructure
- Hosted on Amazon Web Services (76.76.21.21)
- DNS: Amazon Route 53
- Email: Google Workspace
- Email security: no SPF record, no DMARC record
- SSL: Let's Encrypt, RSA 2048, expires Dec 2026
- Common Crawl link graph: rank 2,361,679, 4 hosts
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Full technology history →
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Recent changes
- dropped Apache HTTP Server Sep 2026
- dropped Contact Form 7 Sep 2026
- dropped jQuery Sep 2026
- dropped jQuery Migrate Sep 2026
- dropped MySQL Sep 2026
- dropped PHP Sep 2026
- dropped reCAPTCHA Sep 2026
- dropped RSS Sep 2026
- dropped Twitter Emoji (Twemoji) Sep 2026
- dropped WordPress Sep 2026
- dropped WP-PageNavi Sep 2026
- dropped Yoast SEO Sep 2026
- detected HSTS Aug 2026
- detected Next.js Aug 2026
- detected Next.js App Router Aug 2026
- detected Node.js Aug 2026
- detected Priority Hints Aug 2026
- detected React Aug 2026
- detected Tailwind CSS Aug 2026
- detected Turbopack Aug 2026
- detected Vercel Aug 2026
- detected Webpack Aug 2026
- detected Twitter Emoji (Twemoji) Jan 2026