Build a virtual WordPress plugin stack and watch composite performance metrics update in real time — before installing anything on a live site.
Before you touch a staging server.
Add plugins one by one. Watch performance metrics — load time, JS payload, DB queries, PHP execution — update instantly with every change.
Every data point is source-cited. Lab measurements, published research, or AI estimates — you always know which is which and where it came from.
Known plugin conflicts surface immediately when you combine conflicting plugins. Two caching plugins, two SEO plugins — we catch it before you deploy.
CVE history, update frequency, code audit status — composite security scores for every plugin in your stack, not just the individual ones.
Plugin interactions aren't additive. Our AI model estimates combination effects with explicit confidence levels — and always tells you when it's estimating.
Query StackSpeed from Claude, ChatGPT, or Cursor via MCP. Ask what the lightest SEO stack for WooCommerce is and get data-backed answers.
Every methodology is versioned and public. Every data source is cited. Every AI estimate is labeled. If our data is wrong, you can challenge it.
Read the Methodology →