What powers 
stellaseed.jp?
Last seen Sep 2026 · 27 technologies across 15 categories
Advertising
Google Ads
since Apr 2023
Yahoo Advertising
since Apr 2023
Analytics
Google Ads Conversion Tracking
since Apr 2023
Google Analytics
since Jan 2019
CDN
Google Hosted Libraries
since Feb 2022
jsDelivr
since Jul 2020
CMS
Contentful
since Aug 2023
Font scripts
Typekit
since Feb 2021
JavaScript frameworks
JavaScript libraries
Maps
Google Maps
since Dec 2022
Miscellaneous
PaaS
Vercel
since Aug 2023
Programming languages
Node.js
since Aug 2023
Security
Tag managers
Google Tag Manager
since Apr 2023
Web servers
Apache HTTP Server
since Jan 2019
Webmail
Microsoft 365
since Nov 2024
AI Crawlers
Doesn't mention any of the 33 AI crawlers we track in its robots.txt; all are allowed by default. Checked Oct 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 67% phone
- 33% desktop
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.87 / 10 · ranked #678,203 of all domains
32 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.9 s |
| INP | 150 ms |
| CLS | 0 |
| TTFB | 300 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Japanese
- CDN: Vercel
- Weight: 4.6 MB · 131 requests
- Structured data: OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on Amazon Web Services (76.76.21.21)
- DNS: gmoserver.jp
- Email: Microsoft 365
- Email security: no SPF record, no DMARC record
- SSL: Let's Encrypt, RSA 2048, expires Dec 2026
- Common Crawl link graph: rank 10,064,508, 2 hosts
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| stellaseed.jp | 21 |
| www.stellaseed.jp | 15 |