What powers 
djchuang.com?
Last seen Oct 2026 · 15 technologies across 12 categories
Analytics
Caching
CDN
CMS
Databases
Hosting
Miscellaneous
Page builders
Performance
Programming languages
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 Nov 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
- Oct 2026 llms.txt removed
AI Crawlers
No AI crawlers blocked
Audience
United States
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.75 / 10 · ranked #737,004 of all domains
54 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.6 s |
| CLS | 0 |
| TTFB | 700 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: English (United States)
- CDN: Cloudflare
- Weight: 0.3 MB · 17 requests
- WordPress theme: twentytwentyfour · all themes
- Structured data: JSON-LD, OpenGraph
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- Hosted on Cloudflare (104.21.19.182, IPv6)
- DNS: Cloudflare DNS
- Email: no MX record returned, SPF names Cloudflare Email Routing
- Email security: SPF (soft fail), DMARC monitor only
- SSL: Google Trust Services, ECDSA P256, wildcard, expires Dec 2026
- Common Crawl link graph: rank 662,119, 6 hosts
- Verified with: Google
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 All in One SEO Jul 2026
- detected Cloudflare Jul 2026
- detected Cloudflare Browser Insights Jul 2026
- detected Hostinger Jul 2026
- detected HTTP/3 Jul 2026
- detected Litespeed Cache Jul 2026
- detected Mailjet Jul 2026
- detected MySQL Jul 2026
- detected Open Graph Jul 2026
- detected PHP Jul 2026
- detected Priority Hints Jul 2026
- detected RSS Jul 2026
- detected Site Kit Jul 2026
- detected WordPress Jul 2026
- detected WordPress Site Editor Jul 2026