What powers shelfit.com?
Last seen Aug 2026 · 35 technologies across 19 categories
Analytics
Google Analytics
since Jun 2018
Authentication
Google Sign-in
since Aug 2026
SimpleSAMLphp
since Aug 2026
Caching
Varnish
since Jun 2024
Databases
MySQL
since Oct 2020
Documentation
Zendesk
since Sep 2021
Ecommerce
Cart Functionality
since Oct 2020
Google Workspace
since Aug 2022
Mailgun
since Aug 2022
Font scripts
Font Awesome
since Apr 2018
Google Font API
since Apr 2018
JavaScript frameworks
JavaScript libraries
FancyBox
since Jun 2018
Moment.js
since Sep 2021
OWL Carousel
since Sep 2021
script.aculo.us
since Apr 2018
Slick
since Jun 2022
Load balancers
Amazon ALB
since Sep 2021
PaaS
Amazon Web Services
since Sep 2021
Programming languages
PHP
since Jun 2018
RUM
New Relic
since Sep 2025
Security
HSTS
since Sep 2024
UI frameworks
Bootstrap
since Apr 2018
CivicTheme
since Jan 2023
Web server extensions
Web servers
Widgets
Google Plus
since Aug 2018
AI Crawlers
robots.txt could not be read at the last check (Aug 2026), so its policy is unknown.
- robots.txt not checked
- llms.txt not checked
- ai.txt not checked
AI Crawlers
Policy unknown
Audience
- 94% desktop
- 6% phone
United States
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
2.22 / 10 · ranked #3,045,936 of all domains
17 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.3 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 2100 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: English
- CDN: Fastly
- Weight: 1.7 MB · 289 requests
Homepage as crawled by the HTTP Archive, Aug 2026.
Subdomains
| Host | Techs |
|---|---|
| novarescienceandmath.shelfit.com | 25 |
| shelfit.com | 25 |
| sso.shelfit.com | 13 |
| www.shelfit.com | 13 |
| reader.shelfit.com | 7 |
| store.shelfit.com | 7 |