What powers sigma-jp.co.jp?
Last seen Aug 2026 · 20 technologies across 12 categories
Advertising
Analytics
Font scripts
Ionicons
since Feb 2019
Hosting
Sakura Internet
since Aug 2022
JavaScript frameworks
Riot
since Nov 2021
JavaScript libraries
Marketing automation
BowNow
since Feb 2022
Miscellaneous
Open Graph
since Sep 2022
Programming languages
Security
reCAPTCHA
since Apr 2022
Tag managers
Google Tag Manager
since Jun 2019
Web servers
Nginx
since Feb 2019
AI Crawlers
robots.txt could not be read at the last check (Sep 2026), so its policy is unknown.
- robots.txt not checked
- llms.txt not checked
- ai.txt not checked
AI Crawlers
Policy unknown
Audience
- 77% phone
- 23% desktop
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.18 / 10 · ranked #466,121 of all domains
57 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.5 s |
| INP | 125 ms |
| CLS | 0 |
| TTFB | 500 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Weight: 2.9 MB · 100 requests
- Structured data: OpenGraph
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on Sakura Internet (153.127.121.220)
- Email: sigma-jp.co.jp
- Email security: SPF (soft fail), no DMARC record, CAA
- SSL: Let's Encrypt, RSA 2048, expires Nov 2026
- Common Crawl link graph: rank 10,088,070, 4 hosts
- Verified with: Google
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| www.sigma-jp.co.jp | 18 |
| sigma-jp.co.jp | 14 |
Full technology history →
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Recent changes
- detected Microsoft Clarity Feb 2026