What powers emeraldbook.org?
Last seen Jun 2026 · 24 technologies across 14 categories
Analytics
Google Analytics
since Sep 2025
Caching
W3 Total Cache
since May 2026
WordPress Super Cache
since Jun 2026
CDN
cdnjs
since Jun 2025
Cloudflare
since Jun 2025
CMS
Databases
MySQL
since Jun 2025
Amazon SES
since May 2026
Font scripts
Google Font API
since Jun 2025
Twitter Emoji (Twemoji)
since May 2026
JavaScript libraries
Miscellaneous
Open Graph
since Jun 2025
RSS
since Jun 2025
PaaS
Amazon Web Services
since May 2026
Programming languages
PHP
since Jun 2025
Web servers
Nginx
since May 2026
WordPress plugins
WordPress themes
Audience
- 74% desktop
- 26% phone
United States
United Kingdom
India
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
2.11 / 10 · ranked #3,298,321 of all domains
6 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.3 s |
| INP | 50 ms |
| CLS | 0.05 |
| TTFB | 1000 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: English (United States)
- Weight: 2.4 MB · 59 requests
- WordPress theme: astra · all themes
- Structured data: JSON-LD, Microdata, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Jul 2026.
Full technology history →
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Recent changes
- dropped LiteSpeed Jun 2026
- dropped Litespeed Cache Jun 2026
- detected Underscore.js Jun 2026
- detected WordPress Super Cache Jun 2026
- dropped Bootstrap May 2026
- dropped jsDelivr May 2026
- dropped Popper May 2026
- dropped Priority Hints May 2026