What powers pfirst-grace.co.jp?
Last seen Jun 2026 · 28 technologies across 20 categories
Analytics
Google Analytics
since Apr 2025
CDN
Amazon S3
since Aug 2025
Cloudflare
since Aug 2025
Google Cloud CDN
since Apr 2025
jQuery CDN
since Apr 2025
CRM
Salesforce
since Apr 2025
Mailgun
since Apr 2025
Font scripts
Font Awesome
since Apr 2025
Google Font API
since Aug 2025
IaaS
Google Cloud
since Apr 2025
Issue trackers
Sentry
since Aug 2025
JavaScript frameworks
Stimulus
since Jun 2025
JavaScript libraries
Miscellaneous
HTTP/3
since Apr 2025
Open Graph
since Aug 2025
PaaS
Amazon Web Services
since Aug 2025
Performance
Turbo
since Apr 2025
Programming languages
Rich text editors
Security
HSTS
since Apr 2025
Tag managers
Google Tag Manager
since Apr 2025
UI frameworks
Tailwind CSS
since Apr 2025
Web frameworks
Ruby on Rails
since Apr 2025
Web servers
Apache HTTP Server
since Apr 2025
Nginx
since Apr 2025
Webmail
Microsoft 365
since Apr 2025
Audience
- 100% phone
Japan
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
1.65 / 10 · ranked #5,315,062 of all domains
4 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.2 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 500 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Japanese
- CDN: Cloudflare
- Weight: 1.6 MB · 60 requests
- Structured data: OpenGraph
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| customers.pfirst-grace.co.jp | 16 |
| faq.pfirst-grace.co.jp | 11 |
| www.pfirst-grace.co.jp | 9 |