What powers wheel-size.jp?
Last seen Sep 2026 · 20 technologies across 13 categories
Advertising
Google AdSense
since Jan 2019
Analytics
Google Analytics
since Jan 2019
Font scripts
Google Font API
since Jan 2019
JavaScript libraries
Miscellaneous
PaaS
Amazon Web Services
since Aug 2022
Performance
Priority Hints
since Sep 2026
Programming languages
Python
since Jan 2019
Security
Tag managers
Google Tag Manager
since Jan 2019
UI frameworks
Tailwind CSS
since Sep 2026
Web frameworks
Django
since Jan 2019
Web servers
Nginx
since Jan 2019
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
- 51% phone
- 47% desktop
- 2% tablet
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
0.95 / 10 · ranked #13,665,170 of all domains
1 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.8 s |
| INP | 75 ms |
| CLS | 0.2 |
| TTFB | 900 ms |
Real user p75, Chrome UX Report, Oct 2026.
Infrastructure
- Hosted on Amazon Web Services (32.195.93.228)
- DNS: Amazon Route 53
- Email: Amazon SES / WorkMail
- Email security: no SPF record, no DMARC record
- SSL: Amazon Trust Services, RSA 2048, expires Apr 2027
- Common Crawl link graph: rank 3,874,763
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 Django Sep 2026
- detected Priority Hints Sep 2026
- detected Python Sep 2026
- detected Tailwind CSS Sep 2026
- dropped Snowplow Analytics Jun 2026
- detected Snowplow Analytics Apr 2026
- detected Google Tag Manager Feb 2026
- dropped Sentry Feb 2026
- dropped Amazon ALB Jan 2026
- dropped Google PageSpeed Jan 2026
- dropped Google Tag Manager Dec 2025