What powers head-spring.co.jp?
Last seen Aug 2026 · 52 technologies across 22 categories
A/B Testing
Google Optimize
since Oct 2022
Analytics
CDN
cdnjs
since Jul 2025
Cloudflare
since Aug 2023
Google Hosted Libraries
since Dec 2022
jQuery CDN
since Oct 2025
jsDelivr
since Jul 2025
CMS
WordPress
since Oct 2020
Databases
MySQL
since Oct 2020
Ecommerce
Cart Functionality
since Jan 2022
EC-CUBE
since Jul 2025
Font scripts
JavaScript libraries
LazySizes
since Dec 2022
LazySizes unveilhooks plugin
since Dec 2022
Lightbox
since Nov 2024
Slick
since Dec 2022
Swiper
since Sep 2022
Maps
Google Maps
since Dec 2022
Marketing automation
HubSpot
since Aug 2022
Miscellaneous
PaaS
Kinsta
since Sep 2025
Page builders
Performance
Priority Hints
since Nov 2023
Programming languages
Security
Cloudflare Bot Management
since Aug 2023
reCAPTCHA
since Aug 2022
Tag managers
Google Tag Manager
since Aug 2022
UI frameworks
Web servers
Apache HTTP Server
since Jul 2025
Nginx
since Oct 2020
Webmail
Google Workspace
since Oct 2022
WordPress plugins
TablePress
since Aug 2023
WordPress themes
Twenty Seventeen
since Mar 2022
AI Crawlers
Doesn't name any of the 33 AI crawlers we track in its robots.txt. Catch-all rules (User-agent: *) restrict some paths for every crawler, AI or not. Checked Aug 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 94% desktop
- 6% phone
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.33 / 10 · ranked #1,091,999 of all domains
21 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.5 s |
| INP | 25 ms |
| CLS | 0.1 |
| TTFB | 700 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Japanese
- CDN: Cloudflare
- Weight: 2.4 MB · 138 requests
- WordPress theme: twentyseventeen (child: twentyseventeen-child) · all themes
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Subdomains
| Host | Techs |
|---|---|
| dx.head-spring.co.jp | 31 |
| head-spring.co.jp | 27 |
| dms.head-spring.co.jp | 21 |
| store.head-spring.co.jp | 21 |
| recruit.head-spring.co.jp | 18 |
Full technology history →
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Recent changes
- dropped Google Ads Nov 2025
- dropped Google Ads Conversion Tracking Nov 2025
- dropped Yahoo Advertising Nov 2025