What powers 
rockfield.co.jp?
Last seen Oct 2026 · 42 technologies across 22 categories
Analytics
CDN
CMS
Databases
Ecommerce
Font scripts
JavaScript frameworks
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Miscellaneous
PaaS
Performance
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AI Crawlers
Doesn't mention any of the 33 AI crawlers we track in its robots.txt; all are allowed by default. Checked Nov 2026. A recent check saw a policy file missing; awaiting confirmation.
- robots.txt found
- llms.txt not found
- ai.txt not found
- Sep 2026 robots.txt appeared
- Sep 2026 * added to robots.txt
- Sep 2026 * removed from robots.txt
- Sep 2026 robots.txt removed
- Aug 2026 * added to robots.txt
- Aug 2026 * removed from robots.txt
Top search keywords
| Keyword | Position | Est. monthly visits |
|---|---|---|
| rockfield | #39 | 2 |
| rf1 | #74 | 1 |
| swissport wiki | #39 | 0 |
| rfff | #100 | 0 |
| rfff | #68 | 0 |
| rockfeld group | #57 | 0 |
| rudo company | #86 | 0 |
| sozai restaurant menu | #82 | 0 |
| sozai chicken menu | #71 | 0 |
| motomachi kobe | #88 | 0 |
| jp rock | #86 | 0 |
| huxi | #74 | 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 AI crawlers blocked
Audience
- 81% phone
- 17% desktop
- 2% tablet
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
5.63 / 10 · ranked #143,839 of all domains
175 referring domains · OpenPageRank
Search traffic
3 est. monthly organic visits (US)
12 keywords in Google's top 30
Core Web Vitals
| LCP | 1.1 s |
| INP | 100 ms |
| CLS | 0 |
| TTFB | 200 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Japanese
- Weight: 7.4 MB · 144 requests
- Structured data: JSON-LD, OpenGraph
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
- Rock Field
- Founded: 1972
- Country: Japan
From Wikidata (CC0).
Infrastructure
- DNS: Onamae.com
- Email: Microsoft 365
- Email security: SPF (soft fail), DMARC monitor only
- SSL: GlobalSign, RSA 2048, wildcard, expires Dec 2026
- Common Crawl link graph: rank 1,082,889, 8 hosts
- Verified with: GlobalSign, Google, Meta Business, Microsoft 365
DNS records as swept Nov 2026, certificate as seen Nov 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| catering.rockfield.co.jp | 26 |
| members.rockfield.co.jp | 21 |
| hoikublog.rockfield.co.jp | 15 |
| yugo.rockfield.co.jp | 11 |
| www.rockfield.co.jp | 9 |
Full technology history →
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Recent changes
- detected jQuery Migrate Aug 2026
- detected Amazon S3 Jul 2026