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GTmetrix vs iftop

Professional comparison and analysis to help you choose the right software solution for your needs.

GTmetrix icon
GTmetrix
iftop icon
iftop

GTmetrix vs iftop: The Verdict

⚡ Summary:

GTmetrix: GTmetrix is a free online tool that analyzes web pages for performance, providing a performance score and recommendations to improve speed.

iftop: iftop is an open source command-line tool used to monitor network usage and bandwidth in real-time. It displays a table of current TCP/IP connections using bandwidth over a specified interface.

Both tools serve their respective audiences. Compare the features, pricing, and user ratings above to determine which best fits your needs.

Last updated: May 2026 · Comparison by Sugggest Editorial Team

Feature GTmetrix iftop
Sugggest Score
Category Web Browsers Network & Admin
Pricing Open Source

Product Overview

GTmetrix
GTmetrix

Description: GTmetrix is a free online tool that analyzes web pages for performance, providing a performance score and recommendations to improve speed.

Type: software

iftop
iftop

Description: iftop is an open source command-line tool used to monitor network usage and bandwidth in real-time. It displays a table of current TCP/IP connections using bandwidth over a specified interface.

Type: software

Pricing: Open Source

Key Features Comparison

GTmetrix
GTmetrix Features
  • PageSpeed and YSlow analysis
  • Waterfall charts
  • Page resources breakdown
  • Performance recommendations
  • Customizable performance thresholds
  • PageSpeed API integration
  • HAR file downloads
  • Page screenshots
  • Email reports
iftop
iftop Features
  • Displays bandwidth usage on selected network interface
  • Shows both inbound and outbound traffic
  • Can filter by IP address or network port
  • Real-time monitoring and stats
  • Text-based interface for terminal/CLI use

Pros & Cons Analysis

GTmetrix
GTmetrix

Pros

  • Free and easy to use
  • Detailed performance insights
  • Actionable optimization recommendations
  • Customizable performance thresholds
  • Integrates with other tools via API
  • Can monitor website changes over time

Cons

  • Limited number of free tests per month
  • No browser testing
  • No visual web optimization
  • No A/B testing capabilities
  • Only provides recommendations, not fixes
iftop
iftop

Pros

  • Free and open source
  • Lightweight and low resource usage
  • Easy to use with no configuration needed
  • Good for identifying bandwidth hogs and monitoring network usage
  • Works on Linux, Unix, and BSD systems

Cons

  • Terminal-only, no GUI
  • Can only monitor one interface at a time
  • Not as feature-rich as commercial bandwidth monitors
  • Requires some Linux/Unix command line knowledge to use
  • Does not work on Windows

Pricing Comparison

GTmetrix
GTmetrix
  • Not listed
iftop
iftop
  • Open Source

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