What powers rs4k.com?
Last seen Aug 2026 · 33 technologies across 18 categories
Analytics
Google Analytics
since May 2024
CDN
CMS
Wix
since Dec 2023
Ecommerce
Cart Functionality
since May 2024
Shopify
since May 2024
Hosting
GoDaddy
since May 2024
IaaS
Google Cloud
since Dec 2023
Issue trackers
JavaScript frameworks
JavaScript libraries
Marketing automation
PushOwl
since Apr 2025
Miscellaneous
HTTP/3
since Dec 2023
Open Graph
since Dec 2023
Payment processors
Amazon Pay
since May 2024
American Express
since May 2024
Apple Pay
since May 2024
Google Pay
since May 2024
Mastercard
since May 2024
PayPal
since May 2024
Shop Pay
since May 2024
Visa
since May 2024
Performance
Priority Hints
since Dec 2023
Programming languages
PHP
since May 2024
Security
HSTS
since Dec 2023
Shopify apps
Locksmith
since Jan 2025
UI frameworks
Webmail
Google Workspace
since Dec 2023
AI Crawlers
Doesn't name any of the 33 AI crawlers we track in its robots.txt. Catch-all rules (User-agent: *) restrict some paths for every crawler, AI or not. Checked Aug 2026.
- robots.txt found
- llms.txt found
- llms-full.txt found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Standards: llms.txt, llms-full.txt
Audience
- 50% phone
- 43% desktop
- 7% tablet
United States
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
1.83 / 10 · ranked #4,164,844 of all domains
8 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.4 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 600 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: English
- CDN: Cloudflare
- Weight: 1.8 MB · 268 requests
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Subdomains
| Host | Techs |
|---|---|
| rs4k.com | 23 |
| www.rs4k.com | 14 |
Full technology history →
Report an incorrect detection
Recent changes
- dropped Facebook Pixel Aug 2026
- dropped YouTube May 2026
- dropped cdnjs Apr 2026
- dropped jsDelivr Apr 2026
- dropped Mustache Apr 2026