What powers seventeen5.co?
Last seen Sep 2026 · 28 technologies across 15 categories
Analytics
CDN
CMS
Databases
Font scripts
JavaScript frameworks
JavaScript libraries
Miscellaneous
Page builders
Performance
Programming languages
Security
Tag managers
WordPress plugins
WordPress themes
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 Sep 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 69% desktop
- 32% phone
Taiwan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
0.66 / 10 · ranked #20,534,631 of all domains
2 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.9 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 1800 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Chinese (Taiwan)
- CDN: Cloudflare
- Weight: 3.9 MB · 190 requests
- WordPress theme: blocksy (child: blocksy-child) · all themes
- Structured data: JSON-LD, Microdata, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
- 17.5 英文寫作教室 _seventeen.5
From the homepage's own structured data (Sep 2026).
Infrastructure
- Hosted on Cloudflare (104.21.90.156, IPv6)
- Email: no MX record returned
- Common Crawl link graph: rank 26,345,613
DNS records as swept Aug 2026. How the web is hosted
Full technology history →
Report an incorrect detection
Recent changes
- detected Fluent Forms Jul 2026
- detected jQuery Migrate Jul 2026
- dropped Nginx Jun 2026
- detected React Jun 2026
- detected HTTP/3 May 2026
- detected Google Analytics Apr 2026
- dropped jQuery Migrate Jan 2026
- dropped WP Rocket Jan 2026