What powers underdog.io?
Last seen Jun 2026 · 30 technologies across 16 categories
Advertising
AdRoll
since Jun 2018
Analytics
CDN
Amazon S3
since May 2022
cdnjs
since May 2023
Cloudflare
since Apr 2018
Google Hosted Libraries
since Feb 2022
Unpkg
since May 2023
Google Workspace
since Aug 2022
Font scripts
Google Font API
since Apr 2018
Issue trackers
JavaScript libraries
Marketing automation
MailChimp
since Aug 2022
Miscellaneous
PaaS
Amazon Web Services
since May 2022
Page builders
Webflow
since Jul 2020
Programming languages
Python
since Aug 2018
Security
Tag managers
Google Tag Manager
since Apr 2018
Web servers
Widgets
Facebook
since Jun 2018
Audience
- 70% desktop
- 30% phone
Nigeria
United States
India
Pakistan
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
4.79 / 10 · ranked #267,505 of all domains
143 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.9 s |
| INP | 50 ms |
| CLS | 0.55 |
| TTFB | 500 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- CDN: Cloudflare
- Weight: 1.4 MB · 98 requests
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| underdog.io | 22 |
| landing.underdog.io | 21 |
| www.underdog.io | 10 |
| account.underdog.io | 7 |
| candidate.underdog.io | 7 |
| company.underdog.io | 3 |
Full technology history →
Report an incorrect detection
Recent changes
- detected PerimeterX Jun 2026
- dropped AdRoll CMP System Sep 2025
- dropped Cloudinary Sep 2025
- dropped core-js Sep 2025
- dropped Facebook Login Sep 2025
- dropped Facebook Pixel Sep 2025
- dropped Pingdom RUM Sep 2025
- dropped Quill Sep 2025
- dropped Quora Pixel Sep 2025
- dropped Reddit Ads Sep 2025
- dropped Twitter Ads Sep 2025