What powers 
greatpretender.jp?
Last seen Oct 2026 · 12 technologies across 10 categories
Analytics
Google Analytics
since Feb 2020
CDN
jsDelivr
since Jul 2020
Databases
Firebase
since Sep 2022
Font scripts
Google Font API
since Feb 2020
Hosting
Sakura Internet
since Aug 2022
JavaScript frameworks
Vue.js
since Feb 2020
JavaScript libraries
Miscellaneous
Security
HSTS
since Sep 2022
Video players
YouTube
since Dec 2023
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
AI Crawlers
Policy unknown
Audience
- 70% phone
- 30% desktop
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.06 / 10 · ranked #531,135 of all domains
68 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.1 s |
| INP | 100 ms |
| CLS | 0.15 |
Real user p75, Chrome UX Report, Sep 2026.
Page
- CDN: Fastly
- Weight: 5.8 MB · 100 requests
- Structured data: OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- Hosted on Fastly (151.101.1.195)
- DNS: Sakura Internet
- Email: greatpretender.jp
- Email security: no SPF record, no DMARC record
- SSL: Google Trust Services, RSA 2048, expires Jan 2027
- Common Crawl link graph: rank 2,060,026, 2 hosts
- Verified with: Google
DNS records as swept Nov 2026, certificate as seen Nov 2026. How the web is hosted