What powers 
tda.ac.jp?
Last seen Sep 2026 · 19 technologies across 12 categories
Advertising
Google Ads
since Dec 2022
Yahoo Advertising
since Apr 2022
Analytics
Google Ads Conversion Tracking
since Jul 2021
Google Analytics
since Jun 2018
Microsoft Clarity
since Jul 2026
TikTok Pixel
since Nov 2024
CDN
Font scripts
Google Font API
since Jul 2026
JavaScript libraries
Maps
Google Maps
since Jun 2023
Miscellaneous
Open Graph
since Jul 2026
PaaS
Amazon Web Services
since May 2022
Performance
Priority Hints
since Jul 2026
Tag managers
Google Tag Manager
since Aug 2016
Video players
YouTube
since Apr 2019
Web servers
Apache HTTP Server
since Aug 2016
AI Crawlers
robots.txt could not be read at the last check (Oct 2026), so its policy is unknown.
- robots.txt not checked
- llms.txt not checked
- ai.txt not checked
AI Crawlers
Policy unknown
Audience
- 54% phone
- 46% desktop
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.69 / 10 · ranked #351,031 of all domains
51 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.4 s |
| INP | 125 ms |
| CLS | 0 |
| TTFB | 500 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Japanese
- Weight: 29.4 MB · 184 requests
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
- 東京デザイン専門学校
- Industry: Education (declares
EducationalOrganization) - Profiles: Instagram, TikTok, YouTube
From the homepage's own structured data (Oct 2026).
Infrastructure
- DNS: tda.ac.jp
- Email: mailsecure.jp
- Email security: SPF (soft fail), DMARC monitor only
- SSL: GlobalSign, RSA 2048, expires Dec 2026
- Common Crawl link graph: rank 99,955
- Verified with: Google
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Full technology history →
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Recent changes
- dropped Google Hosted Libraries Aug 2026
- dropped jQuery Aug 2026
- dropped Slick Aug 2026
- detected Google Font API Jul 2026
- detected jsDelivr Jul 2026
- detected Microsoft Clarity Jul 2026
- detected Open Graph Jul 2026
- detected Priority Hints Jul 2026
- detected Swiper Jul 2026