SEO GSC Wizard MCP

Score an SEO experiment

get_experiment_results

Read-only

Scores one SEO experiment: assigns the property's landing pages to the experiment's control and variant URL groups, then compares each variant against the control (group 0) on click growth period-over-period. Returns per-group clicks/impressions/CTR (with a confidence interval) and an impression-weighted average position, plus for each variant the uplift in growth (percentage points) with its CI, a significance test of that growth difference (significant exactly when the CI excludes 0), the winner, and a low-power warning. ctrPValue is a separate test of the CTR difference, for reference only. The comparison window is the prior same-length period. Reads the ClickHouse warehouse when available, else the live Search Console API.

Input Schema

TableJSON Schema

Name	Required	Description
`endDate`	No	Optional. Window end as YYYY-MM-DD (e.g. 2026-05-31). You do NOT need to know today's date or the latest available date: omit this and the server uses the latest settled Search Console date (data lags ~2-3 days behind today). Never pass null or the string "null".
`siteUrl`	Yes
`startDate`	No	Optional. Window start as YYYY-MM-DD (e.g. 2026-05-03). You do NOT need to know today's date. Omit BOTH startDate and endDate to analyze the last 28 settled days automatically (Search Console data lags ~2-3 days). Never pass null or the string "null".
`experimentId`	Yes	The experiment id from list_experiments.
`confidenceLevel`	No	Confidence level for the significance test and CIs (default 0.95).

Output Schema

TableJSON Schema

Name	Required	Description	Default
`note`	No
`range`	No
`groups`	No
`siteUrl`	No
`truncated`	No
`comparison`	No
`dataSource`	No
`experiment`	No
`comparisons`	No
`truncationNote`	No
`windowNormalization`	No

Schema Changelog

Changes observed during successful MCP inspections.

Changed3 schema fields changedOct 10, 2026

addedOutput schema / properties / truncated

Added value: +{
+  "type": [
+    "boolean",
+    "null"
+  ]
+}

addedOutput schema / properties / truncationNote

Added value: +{
+  "$ref": "#/properties/siteUrl"
+}

addedOutput schema / properties / windowNormalization

Added value: +{
+  "anyOf": [
+    {
+      "additionalProperties": false,
+      "properties": {
+        "comparisonDays": {
+          "$ref": "#/properties/range/anyOf/0/properties/days"
+        },
+        "currentDays": {
+          "$ref": "#/properties/range/anyOf/0/properties/days"
+        },
+        "note": {
+          "$ref": "#/properties/siteUrl"
+        },
+        "scale": {
+          "$ref": "#/properties/range/anyOf/0/properties/days"
+        }
+      },
+      "type": "object"
+    },
+    {
+      "type": "null"
+    }
+  ]
+}

First observedOct 7, 2026

TDQS

Score is being calculated.

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