What powers penguinrandomhouse.biz?
Last seen Jun 2026 · 18 technologies across 12 categories
Analytics
Adobe Analytics
since Feb 2019
Google Analytics
since Jul 2021
Quantcast Measure
since Feb 2019
Snowplow Analytics
since Oct 2025
CDN
Cloudflare
since Jun 2026
Ecommerce
Cart Functionality
since Oct 2021
Font scripts
Font Awesome
since Jul 2021
Issue trackers
Sentry
since Jul 2021
JavaScript frameworks
React
since Jul 2021
JavaScript libraries
Miscellaneous
PWA
since Aug 2022
PaaS
Amazon Web Services
since Feb 2022
Security
Cloudflare Bot Management
since Jun 2026
HSTS
since Sep 2022
Segmentation
Tealium AudienceStream
since Feb 2023
Tag managers
Tealium
since Feb 2023
Audience
- 96% desktop
- 4% phone
United States
Canada
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
3.49 / 10 · ranked #899,754 of all domains
53 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.8 s |
| INP | 75 ms |
| CLS | 0.2 |
| TTFB | 300 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Weight: 0.3 MB · 162 requests
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| selfservice.penguinrandomhouse.biz | 13 |
| www.penguinrandomhouse.biz | 8 |
Full technology history →
Report an incorrect detection
Recent changes
- detected Cloudflare Jun 2026
- detected Cloudflare Bot Management Jun 2026
- dropped WalkMe May 2026
- detected Snowplow Analytics Oct 2025
- detected Tealium Aug 2025
- detected Tealium AudienceStream Aug 2025