What powers webcrew.co.jp?
Last seen Oct 2026 · 13 technologies across 12 categories
Analytics
CDN
CRM
Font scripts
JavaScript libraries
Load balancers
Miscellaneous
PaaS
Programming languages
Tag managers
Web servers
AI Crawlers
robots.txt could not be read at the last check (Nov 2026), so its policy is unknown.
- robots.txt not checked
- llms.txt not checked
- ai.txt not checked
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
Policy unknown
Audience
- 65% phone
- 35% desktop
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
5.32 / 10 · ranked #186,817 of all domains
68 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.3 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 900 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Japanese
- Weight: 6.7 MB · 60 requests
- Structured data: OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
- WebCrew
- Founded: 1999
- Country: Japan
From Wikidata (CC0).
Infrastructure
- Hosted on Amazon Web Services (52.192.216.88)
- DNS: Amazon Route 53
- Email: Microsoft 365
- Email security: SPF (soft fail), DMARC monitor only
- Common Crawl link graph: rank 9,968,913, 6 hosts
- Verified with: Google, Microsoft 365, Zoho
DNS records as swept Oct 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| www.webcrew.co.jp | 13 |
| markup.webcrew.co.jp | 10 |
Full technology history →
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Recent changes
- dropped Twitter May 2026
- dropped Twitter Ads May 2026