Analyze URL

Analyze a URL with Google PageSpeed Insights: Lighthouse performance, SEO audit, accessibility and best practices scores, plus Core Web Vitals lab metrics and real user field data

Analyze a URL with Google PageSpeed Insights: Lighthouse performance, SEO audit, accessibility and best practices scores, plus Core Web Vitals lab metrics and real user field data.

App	PageSpeed Insights
Operation ID	pagespeed_insights_analyze_url
Type	Action
Connection	None
Credits per run	5
Agent / MCP tool	Yes

Inputs

Field	Type	Required	Default	Description
url	string	Yes	-	The URL to fetch and analyze (e.g. https://example.com/page).
strategy	enum (MOBILE, DESKTOP)	No	MOBILE	Device to emulate for the Lighthouse run. Defaults to MOBILE.
categories	array of string or SelectableOption	No	-	Lighthouse categories to run: PERFORMANCE, SEO, ACCESSIBILITY, BEST_PRACTICES. Defaults to all four. Lab metrics are only returned when PERFORMANCE is included.
detail_level	enum (metrics, insights, full)	No	metrics	How much of the PageSpeed Insights response to return. All levels keep the raw API field names and structure. ‘metrics’ (default, ~5 KB): category scores, Core Web Vitals lab audits, and CrUX field data. ‘insights’ (~50 KB): metrics plus every audit (without detail tables), for finding what to fix. ‘full’ (100 KB+): the raw API response with screenshot data removed. Prefer ‘metrics’ or ‘insights’; only use ‘full’ when explicitly needed.

SelectableOption

Field	Type	Required	Default	Description
value	string	Yes	-
label	string	Yes	-

Output

Type: Dict

Mirrors the PageSpeed Insights API v5 response, pruned per detail_level. Top-level keys: id, analysisUTCTimestamp, lighthouseResult (categories with 0-1 scores, audits, finalUrl), loadingExperience and originLoadingExperience (CrUX field data; note CrUX reports CLS multiplied by 100). Lab metrics live at lighthouseResult.audits.<id>.numericValue for largest-contentful-paint, first-contentful-paint, total-blocking-time, cumulative-layout-shift, speed-index.

Fields: dynamic (depend on the inputs)

Example:

{
  "id": "https://example.com/",
  "lighthouseResult": {
    "finalUrl": "https://example.com/",
    "categories": {
      "performance": {
        "score": 0.72
      }
    },
    "audits": {
      "largest-contentful-paint": {
        "displayValue": "3.1 s"
      }
    }
  },
  "loadingExperience": {
    "overall_category": "AVERAGE"
  }
}