What powers door.ac?
Last seen Jun 2026 · 45 technologies across 19 categories
A/B Testing
Google Optimize
since Jun 2022
Advertising
AppNexus
since Jul 2023
Criteo
since Mar 2020
Google Ads
since Dec 2022
Microsoft Advertising
since Aug 2022
Yahoo Advertising
since Apr 2022
Analytics
Adjust
since Feb 2026
Google Ads Conversion Tracking
since Aug 2021
Google Analytics
since Jun 2018
Matomo Analytics
since Apr 2023
Microsoft Clarity
since Jul 2022
TikTok Pixel
since Jun 2026
VWO
since Jun 2018
CDN
Amazon CloudFront
since Apr 2022
Amazon S3
since Apr 2018
cdnjs
since Jun 2024
Cloudflare
since Nov 2021
Google Cloud CDN
since Aug 2025
Google Hosted Libraries
since Jun 2024
jsDelivr
since Apr 2022
CMS
microCMS
since Dec 2021
Databases
Firebase
since Apr 2022
Font scripts
Google Font API
since Apr 2022
IaaS
Google Cloud
since Aug 2025
JavaScript frameworks
JavaScript libraries
Marketing automation
Mautic
since Jun 2026
Miscellaneous
PaaS
Amazon Web Services
since Apr 2022
Page builders
STUDIO
since Aug 2025
Programming languages
Node.js
since Aug 2025
Tag managers
Google Tag Manager
since Apr 2018
Web Servers
Apache HTTP Server
since Jun 2018
Webmail
Google Workspace
since Aug 2022
Widgets
Facebook
since Jun 2018
Audience
- 89% phone
- 11% desktop
Japan
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
4.21 / 10 · ranked #449,904 of all domains
65 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2 s |
| INP | 175 ms |
| CLS | 0 |
| TTFB | 900 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Japanese
- Weight: 19.8 MB · 249 requests
- Structured data: OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| door.ac | 25 |
| chintai-app-hikaku.door.ac | 22 |
| reform.door.ac | 18 |
| hikkoshi-hikaku.door.ac | 16 |
| aircon.door.ac | 14 |
| office.door.ac | 14 |
| satei.door.ac | 12 |
| chintai.door.ac | 6 |
| www.door.ac | 6 |
Full technology history →
Report an incorrect detection
Recent changes
- detected Mautic Jun 2026
- detected TikTok Pixel Jun 2026
- dropped Priority Hints May 2026
- detected Adjust Feb 2026
- detected Priority Hints Feb 2026
- dropped Adobe Audience Manager Aug 2025