What powers intheblueshirt.com?
Last seen Jun 2026 · 39 technologies across 25 categories
Advertising
Twitter Ads
since Aug 2022
Analytics
Cloudflare Browser Insights
since Jun 2025
Datadog
since Jun 2025
Google Analytics
since Sep 2020
Matomo Analytics
since May 2026
Authentication
Facebook Login
since Aug 2024
Blogs
Substack
since Jun 2025
Caching
Varnish
since Aug 2024
CDN
CMS
Hatena Blog
since Aug 2024
Ecommerce
Cart Functionality
since Sep 2020
Font scripts
Google Font API
since Sep 2020
Hosting
Sakura Internet
since Aug 2022
Issue trackers
JavaScript frameworks
React
since Feb 2026
JavaScript libraries
Miscellaneous
PaaS
Amazon Web Services
since Aug 2022
Programming languages
Node.js
since Jun 2025
RUM
New Relic
since Aug 2022
Security
Cloudflare Bot Management
since May 2025
HSTS
since Jun 2025
Static site generator
Tag managers
Google Tag Manager
since Sep 2020
Matomo Tag Manager
since May 2026
UI frameworks
Radix UI
since Feb 2026
Video players
YouTube
since Nov 2024
Web frameworks
Express
since Jun 2025
Web servers
Nginx
since Sep 2020
Widgets
Twitter
since Sep 2020
Audience
Japan
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
1.53 / 10 · ranked #6,233,036 of all domains
12 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.8 s |
| INP | 25 ms |
| CLS | 0 |
| TTFB | 100 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Japanese
- Weight: 0.2 MB · 9 requests
- Structured data: OpenGraph
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| blueenvelope.intheblueshirt.com | 18 |
| blog.intheblueshirt.com | 16 |
| shop.intheblueshirt.com | 13 |
| intheblueshirt.com | 6 |
| c4p.intheblueshirt.com | 4 |
Full technology history →
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Recent changes
- dropped Contact Form 7 May 2026
- dropped jQuery Migrate May 2026
- dropped MySQL May 2026
- dropped PHP May 2026
- dropped Priority Hints May 2026
- dropped reCAPTCHA May 2026
- dropped Twitter Emoji (Twemoji) May 2026
- dropped WordPress May 2026
- detected Astro Apr 2026
- detected Radix UI Feb 2026
- detected React Feb 2026
- detected React Router Feb 2026
- dropped Headless UI Jan 2026
- dropped Adobe Audience Manager Aug 2025
- dropped Amazon ALB Aug 2025
- dropped Amazon SES Aug 2025
- dropped Criteo Aug 2025
- dropped Facebook Pixel Aug 2025
- dropped Google Ads Aug 2025
- dropped Google Ads Conversion Tracking Aug 2025
- dropped Google Workspace Aug 2025
- dropped Java Aug 2025
- dropped TikTok Pixel Aug 2025
- dropped Yahoo Advertising Aug 2025
- dropped Zendesk Aug 2025