What powers spreadoffice.com?
Last seen Oct 2026 · 33 technologies across 20 categories
Advertising
Affiliate programs
Analytics
CDN
CMS
Databases
Ecommerce
Font scripts
JavaScript frameworks
JavaScript libraries
Miscellaneous
Page builders
Programming languages
Security
Tag managers
UI frameworks
Video players
Web servers
Widgets
WordPress plugins
AI Crawlers
Doesn't name any of the 33 AI crawlers we track in its robots.txt. Catch-all rules (User-agent: *) restrict some paths for every crawler, AI or not. Checked Oct 2026.
- robots.txt found
- llms.txt not checked
- ai.txt not checked
AI Crawlers
No AI crawlers blocked
Audience
- 100% desktop
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
2.83 / 10 · ranked #1,907,906 of all domains
27 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.7 s |
| INP | 25 ms |
| CLS | 0 |
| TTFB | 300 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Japanese
- Weight: 8.8 MB · 261 requests
- Structured data: JSON-LD, Microdata, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- Hosted on Sakura Internet (133.242.181.183)
- DNS: Onamae.com
- Email: Google Workspace
- Email security: SPF (soft fail), DMARC quarantine
- SSL: DigiCert, RSA 2048, wildcard, expires Dec 2026
- Common Crawl link graph: rank 10,457,671, 5 hosts
- Verified with: Google, Microsoft 365
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
- detected theTradeDesk Sep 2026
- dropped EWWW Image Optimizer Jun 2026
- dropped LazySizes Jun 2026