What powers jeffcolibrary.org?
Last seen Jun 2026 · 34 technologies across 20 categories
Analytics
Crazy Egg
since Jun 2018
Google Analytics
since Jun 2018
New Relic
since Jul 2018
VWO
since Jun 2018
Caching
Varnish
since Apr 2018
CDN
Cloudflare
since Apr 2018
CMS
WordPress
since Apr 2018
Databases
MySQL
since Jun 2018
Font Scripts
Google Font API
since Jun 2018
Hosting
WordPress Multisite
since Jul 2023
JavaScript Frameworks
React
since May 2019
JavaScript Libraries
Miscellaneous
Operating systems
Debian
since May 2025
PaaS
Amazon Web Services
since Aug 2022
Page builders
Beaver Builder
since Jul 2024
Programming languages
PHP
since Jun 2018
Security
HSTS
since Jun 2023
Tag managers
Google Tag Manager
since Apr 2018
Web Frameworks
Web servers
Webmail
Apple iCloud Mail
since Nov 2023
Widgets
Audience
- 54% phone
- 44% desktop
- 2% tablet
United States
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
4.17 / 10 · ranked #469,685 of all domains
96 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.2 s |
| INP | 100 ms |
| CLS | 0.05 |
| TTFB | 1200 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: English (United States)
- Weight: 3.0 MB · 68 requests
- WordPress theme: bibliocommons (child: biblioweb) · all themes
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| jeffcolibrary.org | 22 |
| summerreading.jeffcolibrary.org | 22 |
| www.jeffcolibrary.org | 22 |