What powers systemdesignschool.io?
Last seen Sep 2026 · 17 technologies across 11 categories
Analytics
Google Analytics
since Jan 2024
Hotjar
since Jan 2024
Microsoft Clarity
since Jun 2025
Vercel Analytics
since Jan 2024
Authentication
Google Sign-in
since Jan 2024
CDN
Cloudflare
since Jan 2024
Databases
Firebase
since Jan 2024
JavaScript frameworks
Miscellaneous
Webpack
since Jan 2024
PaaS
Vercel
since Jan 2024
Programming languages
Node.js
since Jan 2024
Security
HSTS
since Jan 2024
UI frameworks
Video players
YouTube
since Nov 2024
AI Crawlers
Doesn't mention any of the 33 AI crawlers we track in its robots.txt; all are allowed by default. Checked Sep 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 84% desktop
- 16% phone
United States
India
United Kingdom
Canada
Brazil
Vietnam
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.31 / 10 · ranked #1,111,693 of all domains
27 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.3 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 300 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: English
- CDN: Vercel
- Weight: 5.3 MB · 96 requests
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on Amazon Web Services (216.150.1.1)
- DNS: Cloudflare DNS
- Email: Namecheap Private Email
- Email security: SPF (soft fail), no DMARC record
- Common Crawl link graph: rank 1,887,687
- Verified with: Firebase, Google
DNS records as swept Sep 2026. How the web is hosted