Network Diagnostics Dashboard

Tracking since Apr 7, 2026.

Changelog

• Apr 21, 2026
  description

  Network Diagnostics Dashboard is a lightweight, privacy-friendly Chrome extension that helps developers, QA engineers, and power users troubleshoot web performance and connectivity problems fast.
  
  Key capabilities:
  
  One-click collection of actionable performance metrics from the active tab: First Paint / FCP, TTFB, DNS/TCP/TLS timing, DOMContentLoaded and full load duration.
  Resource overview: total resource count, total bytes transferred and the largest resources; drill down to a full resource timing table when needed.
  Connection diagnostics: navigator.connection details (effectiveType, RTT, downlink, Save-Data) and public/server IP lookups.
  Quick diagnostics tool: measure fetch latency and status for any URL with simple remediation tips.
  Compact, readable UI focused on fast triage — shows key metrics and clear suggestions before you dig into full traces.
  Built with Manifest V3 using the Performance API and Chrome scripting APIs — no background logging of page content.
  
  ** New version 2.3.0 -> API call analysis and performance score also added as part of upgrade

  Network Diagnostics Dashboard is a lightweight, privacy-friendly Chrome extension that helps developers, QA engineers, performance teams, and power users troubleshoot web performance and connectivity issues fast.
  
  It gives you a focused diagnostics dashboard for the active tab so you can quickly identify what is slowing down a page, what is unstable, and what needs attention first.
  
  Key features:
  One-click collection of actionable page performance metrics from the active tab
  First Paint, First Contentful Paint, TTFB, DNS, TCP, TLS, DOMContentLoaded, and full load timing
  Core Web Vitals analysis with visual badges and progress indicators
  Performance score card for fast overall assessment
  Resource overview with total requests, total bytes transferred, and largest assets
  Full resource drill-down with filtering and sorting by type, size, and duration
  Waterfall chart for resource loading timeline analysis
  Connection diagnostics including effective connection type, RTT, downlink, and Save-Data when available
  Public IP and server IP lookup for quick troubleshooting context
  Built-in diagnostics tool to test fetch latency and status for any URL
  API call analysis to detect slow endpoints, large payloads, and request bottlenecks
  Third-party resource analysis to identify external performance impact
  Image optimization analysis for heavy or inefficient assets
  Historical performance tracking for comparing runs over time
  Export options for JSON, CSV, HTML snapshots, and AI reports
  AI-powered features:
  
  Built-in local AI-style analysis for performance triage
  Smart recommendations based on collected metrics and resource patterns
  Quick wins for common improvements
  Predicted impact estimates for time saved, bandwidth saved, and score improvement
  AI Incident Radar for likely root-cause signals such as backend latency spikes, upstream API bottlenecks, payload-heavy render paths, and main-thread interaction delays
  Optional advanced AI support:
  
  Users can optionally connect their own AI provider for enhanced analysis. Supported options include:
  OpenAI
  Gemini
  Anthropic
  Ollama
  
  Remote AI is optional and disabled by default. If not configured, the extension continues to work with local built-in analysis only.
  
  Why users install it:
  Faster troubleshooting of slow or unstable websites
  Clear, readable UI focused on fast triage
  Useful for debugging frontend, backend, API, and network bottlenecks in one place
  Built with Manifest V3 using Chrome scripting APIs and the Performance API
  No background logging of page content by default
  
  ## Privacy note:
  
  The extension is privacy-friendly by design. Collected diagnostics are used locally in the dashboard. Historical summaries are stored locally in the browser for trend tracking. Optional third-party AI analysis is only used if the user explicitly enables and configures their own provider.

• Apr 21, 2026
  host_permissions

  https://api.ipify.org/*, https://dns.google/*

  https://api.ipify.org/*, https://dns.google/*, https://api.openai.com/*, https://generativelanguage.googleapis.com/*, https://api.anthropic.com/*, http://localhost:11434/*, http://127.0.0.1:11434/*

Permissions & access

Permissions

tabsscriptingactiveTab

Host access

https://api.ipify.org/*, https://dns.google/*, https://api.openai.com/*, https://generativelanguage.googleapis.com/*, https://api.anthropic.com/*, http://localhost:11434/*, http://127.0.0.1:11434/*

Screenshots

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