What powers sumikaclub.com?
Last seen Oct 2026 · 20 technologies across 15 categories
Advertising
Analytics
Authentication
CDN
CMS
Databases
Font scripts
JavaScript libraries
Miscellaneous
Programming languages
Security
SEO
Tag managers
Web servers
Widgets
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
AI Crawlers
No AI crawlers blocked
Audience
- 54% phone
- 46% desktop
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
1.05 / 10 · ranked #11,704,130 of all domains
4 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.4 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 1000 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Weight: 28.8 MB · 581 requests
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
- すみかくらぶ 上毛新聞
From the homepage's own structured data (Oct 2026).
Infrastructure
- Hosted on Sakura Internet (210.224.185.100)
- DNS: wind.ne.jp
- Email: no MX record returned
- Email security: SPF (soft fail), DMARC monitor only
- SSL: Let's Encrypt, RSA 2048, expires Jan 2027
- Common Crawl link graph: rank 37,452,522
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
- detected Twitter Emoji (Twemoji) Dec 2025