What powers shitsumon.jp?
Last seen Jun 2026 · 55 technologies across 31 categories
Affiliate programs
Amazon Associates
since Jul 2021
Analytics
CDN
Amazon S3
since May 2022
cdnjs
since Nov 2021
Cloudflare
since Dec 2020
Google Cloud CDN
since Aug 2025
Google Hosted Libraries
since Feb 2022
jQuery CDN
since Feb 2022
CMS
HubSpot CMS Hub
since Nov 2021
Customer data platform
Databases
MySQL
since Aug 2018
Documentation
Zendesk
since Aug 2022
Amazon SES
since Dec 2022
Font scripts
Google Font API
since Aug 2018
IaaS
Google Cloud
since Aug 2025
Issue trackers
JavaScript frameworks
JavaScript libraries
LMS
Teachable
since Jul 2021
Marketing automation
Miscellaneous
PaaS
Amazon Web Services
since May 2022
Page builders
WordPress Block Editor
since Jul 2024
Payment processors
Performance
Turbolinks
since Oct 2021
Programming languages
Reverse proxies
Envoy
since Apr 2025
Rich text editors
RUM
New Relic
since Sep 2024
Security
Tag managers
Google Tag Manager
since Jul 2019
UI frameworks
Bootstrap
since Aug 2018
Video players
Wistia
since Apr 2021
Web frameworks
Ruby on Rails
since Dec 2020
Web servers
Apache HTTP Server
since Aug 2018
WordPress plugins
Smash Balloon Instagram Feed
since Mar 2022
Audience
- 68% phone
- 33% desktop
Japan
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
3.54 / 10 · ranked #854,212 of all domains
30 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.2 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 1400 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Japanese
- Weight: 6.0 MB · 104 requests
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| school.shitsumon.jp | 35 |
| shitsumon.jp | 29 |
| hs.shitsumon.jp | 16 |
| support.shitsumon.jp | 13 |
Full technology history →
Report an incorrect detection
Recent changes
- detected Sentry Mar 2026
- dropped Sentry Feb 2026
- dropped Cloudflare Browser Insights Jan 2026
- dropped HubSpot Analytics Dec 2025
- dropped HubSpot Chat Sep 2025
- dropped Mailgun Sep 2025
- detected Google Cloud Aug 2025
- detected Google Cloud CDN Aug 2025