What powers 4voice.jp?
Last seen Jun 2026 · 18 technologies across 12 categories
Analytics
Google Analytics
since Sep 2022
CDN
jsDelivr
since Feb 2026
CMS
Databases
MySQL
since Feb 2026
Font scripts
Google Font API
since Feb 2026
Twitter Emoji (Twemoji)
since Feb 2026
JavaScript libraries
Swiper
since Feb 2026
Miscellaneous
Open Graph
since Sep 2022
Performance
LazySizes
since Feb 2026
Programming languages
Security
reCAPTCHA
since Feb 2026
Web servers
Apache HTTP Server
since Sep 2022
WordPress plugins
EWWW Image Optimizer
since Feb 2026
Audience
Japan
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
1.75 / 10 · ranked #4,671,714 of all domains
6 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.3 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 1300 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Japanese
- Weight: 5.1 MB · 134 requests
- WordPress theme: 4voice · all themes
- 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
- dropped Day.js Mar 2026
- dropped Google Maps Mar 2026
- dropped Lodash Mar 2026
- detected Contact Form 7 Feb 2026
- detected core-js Feb 2026
- detected EWWW Image Optimizer Feb 2026
- detected Google Font API Feb 2026
- detected jQuery Migrate Feb 2026
- detected jsDelivr Feb 2026
- detected LazySizes Feb 2026
- detected MySQL Feb 2026
- detected PHP Feb 2026
- detected reCAPTCHA Feb 2026
- detected Swiper Feb 2026
- detected Twitter Emoji (Twemoji) Feb 2026
- detected WordPress Feb 2026
- detected Yoast SEO Feb 2026