What powers complexityexplorer.org?
Last seen Jun 2026 · 19 technologies across 15 categories
Analytics
Google Analytics
since Jun 2018
Caching
RackCache
since Apr 2018
CDN
Amazon CloudFront
since Sep 2024
Amazon SES
since Aug 2022
JavaScript frameworks
Stimulus
since Mar 2023
JavaScript libraries
Miscellaneous
HTTP/3
since Sep 2024
Open Graph
since Sep 2022
Operating systems
Ubuntu
since Apr 2026
PaaS
Amazon Web Services
since Aug 2022
Performance
Turbo
since Apr 2023
Programming languages
Ruby
since Jun 2018
RUM
New Relic
since Jun 2018
Security
HSTS
since Sep 2022
Web frameworks
Ruby on Rails
since Apr 2018
Web servers
Audience
- 80% desktop
- 20% phone
United States
India
United Kingdom
Brazil
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
4.75 / 10 · ranked #276,852 of all domains
127 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.2 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 700 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- CDN: Amazon CloudFront
- Weight: 3.4 MB · 110 requests
- Structured data: OpenGraph
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| intro.complexityexplorer.org | 16 |
| www.complexityexplorer.org | 14 |
Full technology history →
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