What powers iwhy.dev?
Last seen Sep 2026 · 23 technologies across 13 categories
Advertising
Google AdSense
since Apr 2024
Analytics
Baidu Analytics (百度统计)
since Apr 2024
Cloudflare Browser Insights
since Nov 2025
Google Analytics
since Apr 2024
Microsoft Clarity
since Apr 2024
CDN
Cloudflare
since Apr 2024
Cookie compliance
Funding Choices
since Apr 2024
Font scripts
Google Font API
since Sep 2024
JavaScript frameworks
Miscellaneous
PaaS
Vercel
since Apr 2024
Performance
Priority Hints
since Apr 2024
Programming languages
Node.js
since Apr 2024
Security
Tag managers
Google Tag Manager
since Apr 2024
UI frameworks
SvelteKit
since Aug 2025
Tailwind CSS
since Apr 2024
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
- 81% phone
- 19% desktop
United States
Taiwan
Hong Kong SAR China
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
2.76 / 10 · ranked #2,073,404 of all domains
26 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.2 s |
| INP | 150 ms |
| CLS | 0 |
| TTFB | 500 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: English
- CDN: Cloudflare
- Weight: 0.9 MB · 48 requests
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- Hosted on Cloudflare (104.21.52.217, IPv6)
- DNS: Cloudflare DNS
- Email: Cloudflare Email Routing
- Email security: SPF (soft fail), no DMARC record
- SSL: Google Trust Services, ECDSA P256, wildcard, expires Dec 2026
- Common Crawl link graph: rank 7,517,872, 14 hosts
- Verified with: Google
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| answersbook.iwhy.dev | 20 |
| introcard.iwhy.dev | 12 |
| retro.iwhy.dev | 11 |
| gag-calculator.iwhy.dev | 8 |
Full technology history →
Report an incorrect detection
Recent changes
- detected Cloudflare Browser Insights Nov 2025