What powers archi21.co.jp?
Last seen Jun 2026 · 25 technologies across 16 categories
Analytics
Google Analytics
since May 2019
Authentication
Facebook Login
since Jun 2021
CDN
CMS
Databases
MySQL
since May 2019
Font scripts
JavaScript libraries
Lightbox
since May 2019
Marketing automation
Salesforce Marketing Cloud Account Engagement
since Dec 2022
Miscellaneous
Open Graph
since Sep 2022
Programming languages
PHP
since May 2019
SEO
Tag managers
Google Tag Manager
since May 2019
UI frameworks
Video players
YouTube
since Dec 2024
Web servers
Nginx
since May 2019
Webmail
Google Workspace
since Aug 2022
Audience
- 51% desktop
- 49% phone
Japan
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
3.08 / 10 · ranked #1,457,315 of all domains
16 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.7 s |
| INP | 75 ms |
| CLS | 0.15 |
| TTFB | 1200 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Japanese
- Weight: 11.9 MB · 115 requests
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Jul 2026.
Full technology history →
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Recent changes
- detected Twitter Emoji (Twemoji) Dec 2025
- dropped Contact Form 7 Sep 2025