What powers 
hdc.co.jp?
Last seen Sep 2026 · 25 technologies across 16 categories
Analytics
Google Analytics
since Jan 2019
CDN
Cloudflare
since Jul 2020
Google Hosted Libraries
since Feb 2022
Ecommerce
Cart Functionality
since Aug 2020
Shopify
since Jul 2020
Font scripts
Google Font API
since Jul 2020
Form builders
Klaviyo Forms
since Jun 2026
Hosting
Xserver
since Sep 2023
JavaScript frameworks
JavaScript libraries
Marketing automation
Klaviyo
since Jun 2026
Miscellaneous
HTTP/3
since Sep 2022
Open Graph
since Sep 2022
Payment processors
Performance
Priority Hints
since Feb 2023
Security
HSTS
since Sep 2022
Shopify apps
Hextom Ultimate Sales Boost
since Jul 2022
Tag managers
Google Tag Manager
since Jan 2019
Web servers
Nginx
since Oct 2023
AI Crawlers
No robots.txt, so all AI crawlers are allowed by default. Checked Oct 2026.
- robots.txt not found
- llms.txt not found
- ai.txt not found
- Oct 2026 * removed from robots.txt
- Oct 2026 llms.txt removed
- Oct 2026 llms-full.txt removed
- Oct 2026 robots.txt removed
AI Crawlers
No robots.txt, all AI crawlers allowed
Audience
- 61% desktop
- 39% phone
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.95 / 10 · ranked #611,508 of all domains
44 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.7 s |
| INP | 25 ms |
| CLS | 0 |
| TTFB | 200 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Japanese
- Weight: 1.4 MB · 69 requests
- Structured data: OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on Xserver (162.43.104.88)
- DNS: Xserver
- Email: Google Workspace
- Email security: no SPF record, no DMARC record
- SSL: CloudSecure Corporation, RSA 2048, expires Mar 2027
- Common Crawl link graph: rank 2,967,168, 3 hosts
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| shop.hdc.co.jp | 22 |
| hdc.co.jp | 15 |
Full technology history →
Report an incorrect detection
Recent changes
- dropped Microsoft Clarity Aug 2026
- detected Klaviyo Jun 2026
- detected Klaviyo Forms Jun 2026
- detected Preact Jun 2026
- detected React Jun 2026
- dropped Lodash Mar 2026
- detected Google Tag Manager Jan 2026
- detected Microsoft Clarity Nov 2025