---
title: Understanding Performance Ratings
description: "Network Diagnostics provides clear performance ratings to help you quickly assess the quality of your connection. These ratings are based on **response time**, **packet loss**, and an overall **connection grade**. ## Response Time Ratings - **Excellent (< 20ms):** Perfect for…"
url: "https://ssh-assistant.com/docs/understanding-performance-ratings/"
updated: "2025-12-17"
category: Site Load Tester / Network Diagostics
---

# Understanding Performance Ratings

Network Diagnostics provides clear performance ratings to help you quickly assess the quality of your connection. These ratings are based on **response time**, **packet loss**, and an overall **connection grade**.

## Response Time Ratings

- **Excellent (< 20ms):** Perfect for local or nearby servers.
- **Good (20–50ms):** Normal for most websites.
- **Fair (50–100ms):** Acceptable for distant servers.
- **Poor (100–200ms):** May feel sluggish during browsing or streaming.
- **Bad (> 200ms):** Noticeable delays, often problematic for real-time applications.

## Packet Loss Ratings

- **Perfect (0%):** Ideal connection with no dropped packets.
- **Excellent (< 1%):** Very reliable, minimal issues.
- **Good (1–3%):** Occasional dropped packets, usually not disruptive.
- **Fair (3–5%):** Minor issues that may cause noticeable problems.
- **Poor (5–10%):** Connection problems likely, especially for streaming or gaming.
- **Bad (> 10%):** Significant issues, unstable connection.

## Connection Quality Grades

- **A:** Excellent connection (< 30ms average, 0% loss).
- **B:** Good connection (< 50ms average, < 1% loss).
- **C:** Fair connection (< 100ms average, < 3% loss).
- **D:** Poor connection (< 200ms average, < 5% loss).
- **F:** Bad connection (> 200ms average or > 5% loss).

These ratings give you a **quick snapshot of connection health**, making it easier to identify whether issues are local, ISP-related, or tied to the destination server.