What powers 
sommelier.jp?
Last seen Oct 2026 · 42 technologies across 21 categories
Analytics
Authentication
CDN
Ecommerce
Editors
Font scripts
Hosting
JavaScript frameworks
JavaScript libraries
Miscellaneous
Operating systems
Performance
Programming languages
Retargeting
Security
Tag managers
UI frameworks
Video players
Web server extensions
Web servers
Widgets
AI Crawlers
No robots.txt, so all AI crawlers are allowed by default. Checked Nov 2026.
- robots.txt not found
- llms.txt not found
- ai.txt not found
Top search keywords
| Keyword | Position | Est. monthly visits |
|---|---|---|
| master sommelier exam | #94 | 1 |
| wineadvisor | #53 | 0 |
| wine jp | #78 | 0 |
| certified sommelier examination | #92 | 0 |
| sake sommelier certification | #96 | 0 |
| sake sommelier certification | #36 | 0 |
| sake sommelier association | #85 | 0 |
| sake sommelier association | #37 | 0 |
| sake certification | #32 | 0 |
| sommelire | #97 | 0 |
The site's top keywords in Google (US), with the visits each one is estimated to bring per month.
Top backlinks
Top links pointing at the site, one per source domain, strongest first. The anchor text opens the page carrying the link.
AI Crawlers
No robots.txt, all AI crawlers allowed
Audience
- 70% phone
- 30% desktop
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
5.36 / 10 · ranked #177,730 of all domains
127 referring domains · OpenPageRank
Search traffic
1 est. monthly organic visits (US)
10 keywords in Google's top 30
Core Web Vitals
| LCP | 2.8 s |
| INP | 100 ms |
| CLS | 0 |
| TTFB | 1000 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Japanese
- Weight: 6.9 MB · 171 requests
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- Hosted on Amazon Web Services (13.248.131.53)
- DNS: Xserver
- Email: sommelier.jp
- Email security: SPF (soft fail), DMARC quarantine
- SSL: Let's Encrypt, RSA 2048, expires Dec 2026
- Common Crawl link graph: rank 629,400, 8 hosts
- Verified with: Google, Microsoft 365
DNS records as swept Nov 2026, certificate as seen Nov 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| www.sommelier.jp | 13 |
| ec3.sommelier.jp | 12 |
| payment.sommelier.jp | 12 |
| e-contents.sommelier.jp | 9 |
| ec4.sommelier.jp | 8 |
| sommelier.jp | 8 |
| etext.sommelier.jp | 7 |
| ec2.sommelier.jp | 4 |
| follow-up.sommelier.jp | 4 |
Full technology history →
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Recent changes
- detected Google Font API Apr 2026
- detected NextAuth.js Feb 2026
- detected Next.js Feb 2026
- detected Next.js App Router Feb 2026
- detected Node.js Feb 2026
- detected Priority Hints Feb 2026
- detected Radix UI Feb 2026
- detected React Feb 2026
- detected shadcn/ui Feb 2026
- detected Swiper Feb 2026
- detected Tailwind CSS Feb 2026
- detected Webpack Feb 2026
- detected Xserver Jan 2026