Testing Website Performance on a Contabo VPS

Overview

This tutorial demonstrates performance benchmarking of a website hosted on a Contabo VPS configured with the Webmin control panel. The presenter showcases the server setup and navigates through the live site to demonstrate real-world loading speed and responsiveness. To provide quantitative data, the host evaluates the website using three industry-standard speed testing tools: Google PageSpeed Insights, GTmetrix, and Pingdom Website Speed Test. Across all platforms, the site maintains high performance grades, low loading times, and solid structural metrics without post-deployment tuning.

Webmin Setup and Website Responsiveness

00:00

The presenter displays a Contabo VPS managed via Webmin File Manager, showing the deployed website files under /var/www/html. He then opens the live site (arosoft.io) to demonstrate fluid navigation, login transitions, and sign-up page responsiveness before running formal tests.

• Webmin acts as the server control panel on the Contabo VPS.
• Website source files reside in the standard public directory /var/www/html.
• Direct browsing shows fast page loads and smooth interactions.

Google PageSpeed Insights Analysis

00:34

Running a live audit on Google PageSpeed Insights evaluates both mobile and desktop configurations. On mobile, the site scores a 98 Performance rating with a 2.0-second First Contentful Paint. On desktop, performance reaches 98 with high scores across accessibility, best practices, and SEO.

• PageSpeed Insights assesses both mobile and desktop profiles.
• Mobile performance achieved a 98 score with minimal blocking time.
• Desktop performance retained equivalent 98/100 tier metrics.

Benchmarking with GTmetrix and Pingdom Tools

01:11

To validate findings across multiple global testing nodes, the site is analyzed with GTmetrix and Pingdom Tools. GTmetrix reports an 'A' grade with 91% Performance, 94% Structure, and a 1.4s Largest Contentful Paint. Pingdom Tools yields a 96 Performance grade with a 171.8 KB page size and detailed request breakdowns.

• GTmetrix scored an A grade with 91% performance and 1.4s LCP.
• Pingdom returned a performance grade of 96 with 5 asset requests.
• Waterfall diagrams help pinpoint specific assets impacting network load.