What powers tsutsujiso.com?
Last seen Sep 2026 · 14 technologies across 11 categories
CDN
Google Cloud CDN
since Aug 2026
Databases
Firebase
since Aug 2026
Sendgrid
since Aug 2022
Font scripts
Google Font API
since Jan 2019
Hosting
Sakura Internet
since Aug 2026
IaaS
Google Cloud
since Aug 2026
JavaScript frameworks
Miscellaneous
HTTP/3
since Nov 2025
Open Graph
since Sep 2022
Page builders
STUDIO
since Aug 2026
Programming languages
Node.js
since Aug 2026
Tag managers
Google Tag Manager
since Aug 2026
AI Crawlers
Doesn't mention any of the 33 AI crawlers we track in its robots.txt; all are allowed by default. Checked Oct 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 70% phone
- 30% desktop
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.69 / 10 · ranked #318,126 of all domains
30 referring domains · OpenPageRank
Core Web Vitals
| LCP | 3 s |
| INP | 100 ms |
| CLS | 0 |
| TTFB | 700 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Japanese
- CDN: Google
- Weight: 0.8 MB · 36 requests
- Structured data: OpenGraph
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on Google Cloud (34.111.141.225)
- DNS: Sakura Internet
- Email: Sakura Internet
- Email security: SPF (soft fail), DMARC monitor only
- SSL: Google Trust Services, RSA 2048, expires Dec 2026
- Common Crawl link graph: rank 11,689,796
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Full technology history →
Report an incorrect detection
Recent changes
- dropped Cloudflare Sep 2026
- dropped Cloudflare Bot Management Sep 2026
- dropped Google Analytics Sep 2026
- dropped HSTS Sep 2026
- dropped Jimdo Sep 2026
- dropped Lodash Sep 2026
- dropped Modernizr Sep 2026
- dropped Mustache Sep 2026
- dropped RSS Sep 2026
- dropped Tripadviser.Widget Sep 2026
- detected Firebase Aug 2026
- detected Font Awesome Aug 2026
- detected Google Cloud Aug 2026
- detected Google Cloud CDN Aug 2026
- detected Google Tag Manager Aug 2026
- detected Node.js Aug 2026
- detected Nuxt.js Aug 2026
- detected Sakura Internet Aug 2026
- detected STUDIO Aug 2026
- detected Vue.js Aug 2026
- dropped Ahoy May 2026
- dropped POWR May 2026
- dropped Ruby May 2026
- dropped Ruby on Rails May 2026
- dropped core-js Apr 2026
- dropped Nginx Dec 2025
- detected Tripadviser.Widget Dec 2025
- detected Cloudflare Nov 2025
- detected Cloudflare Bot Management Nov 2025
- detected HTTP/3 Nov 2025
- detected Sendgrid Nov 2025