diff --git a/packages/docusaurus-plugin-client-redirects/src/__tests__/__snapshots__/collectRedirects.test.ts.snap b/packages/docusaurus-plugin-client-redirects/src/__tests__/__snapshots__/collectRedirects.test.ts.snap
index 25887592b6a4..8759e5fdfb5e 100644
--- a/packages/docusaurus-plugin-client-redirects/src/__tests__/__snapshots__/collectRedirects.test.ts.snap
+++ b/packages/docusaurus-plugin-client-redirects/src/__tests__/__snapshots__/collectRedirects.test.ts.snap
@@ -37,8 +37,8 @@ exports[`collectRedirects throws if redirect creator creates array of array redi
 
 exports[`collectRedirects throws if redirect creator creates invalid redirects 1`] = `
 "Some created redirects are invalid:
-- {"from":"https://google.com/","to":"/"} => Validation error: "from" is not a valid pathname. Pathname should start with slash and not contain any domain or query string.
-- {"from":"//abc","to":"/"} => Validation error: "from" is not a valid pathname. Pathname should start with slash and not contain any domain or query string.
-- {"from":"/def?queryString=toto","to":"/"} => Validation error: "from" is not a valid pathname. Pathname should start with slash and not contain any domain or query string.
+- {"from":"https://google.com/","to":"/"} => Validation error: "from" (https://google.com/) is not a valid pathname. Pathname should start with slash and not contain any domain or query string.
+- {"from":"//abc","to":"/"} => Validation error: "from" (//abc) is not a valid pathname. Pathname should start with slash and not contain any domain or query string.
+- {"from":"/def?queryString=toto","to":"/"} => Validation error: "from" (/def?queryString=toto) is not a valid pathname. Pathname should start with slash and not contain any domain or query string.
 "
 `;
diff --git a/packages/docusaurus-plugin-client-redirects/src/__tests__/__snapshots__/redirectValidation.test.ts.snap b/packages/docusaurus-plugin-client-redirects/src/__tests__/__snapshots__/redirectValidation.test.ts.snap
index d76b4d18d1f3..bfe208374790 100644
--- a/packages/docusaurus-plugin-client-redirects/src/__tests__/__snapshots__/redirectValidation.test.ts.snap
+++ b/packages/docusaurus-plugin-client-redirects/src/__tests__/__snapshots__/redirectValidation.test.ts.snap
@@ -1,10 +1,10 @@
 // Jest Snapshot v1, https://goo.gl/fbAQLP
 
-exports[`validateRedirect throw for bad redirects 1`] = `"{"from":"https://fb.com/fromSomePath","to":"/toSomePath"} => Validation error: "from" is not a valid pathname. Pathname should start with slash and not contain any domain or query string."`;
+exports[`validateRedirect throw for bad redirects 1`] = `"{"from":"https://fb.com/fromSomePath","to":"/toSomePath"} => Validation error: "from" (https://fb.com/fromSomePath) is not a valid pathname. Pathname should start with slash and not contain any domain or query string."`;
 
-exports[`validateRedirect throw for bad redirects 2`] = `"{"from":"/fromSomePath","to":"https://fb.com/toSomePath"} => Validation error: "to" is not a valid pathname. Pathname should start with slash and not contain any domain or query string."`;
+exports[`validateRedirect throw for bad redirects 2`] = `"{"from":"/fromSomePath","to":"https://fb.com/toSomePath"} => Validation error: "to" (https://fb.com/toSomePath) is not a valid pathname. Pathname should start with slash and not contain any domain or query string."`;
 
-exports[`validateRedirect throw for bad redirects 3`] = `"{"from":"/fromSomePath","to":"/toSomePath?queryString=xyz"} => Validation error: "to" is not a valid pathname. Pathname should start with slash and not contain any domain or query string."`;
+exports[`validateRedirect throw for bad redirects 3`] = `"{"from":"/fromSomePath","to":"/toSomePath?queryString=xyz"} => Validation error: "to" (/toSomePath?queryString=xyz) is not a valid pathname. Pathname should start with slash and not contain any domain or query string."`;
 
 exports[`validateRedirect throw for bad redirects 4`] = `"{"from":null,"to":"/toSomePath?queryString=xyz"} => Validation error: "from" must be a string"`;
 
diff --git a/packages/docusaurus-utils-validation/src/__tests__/__snapshots__/validationSchemas.test.ts.snap b/packages/docusaurus-utils-validation/src/__tests__/__snapshots__/validationSchemas.test.ts.snap
index b1f8cc75ee7e..4e75d01e01f5 100644
--- a/packages/docusaurus-utils-validation/src/__tests__/__snapshots__/validationSchemas.test.ts.snap
+++ b/packages/docusaurus-utils-validation/src/__tests__/__snapshots__/validationSchemas.test.ts.snap
@@ -30,9 +30,9 @@ exports[`validation schemas contentVisibilitySchema: for value={"unlisted":"bad
 
 exports[`validation schemas contentVisibilitySchema: for value={"unlisted":42} 1`] = `""unlisted" must be a boolean"`;
 
-exports[`validation schemas pathnameSchema: for value="foo" 1`] = `""value" is not a valid pathname. Pathname should start with slash and not contain any domain or query string."`;
+exports[`validation schemas pathnameSchema: for value="foo" 1`] = `""value" (foo) is not a valid pathname. Pathname should start with slash and not contain any domain or query string."`;
 
-exports[`validation schemas pathnameSchema: for value="https://github.com/foo" 1`] = `""value" is not a valid pathname. Pathname should start with slash and not contain any domain or query string."`;
+exports[`validation schemas pathnameSchema: for value="https://github.com/foo" 1`] = `""value" (https://github.com/foo) is not a valid pathname. Pathname should start with slash and not contain any domain or query string."`;
 
 exports[`validation schemas pluginIdSchema: for value="/docs" 1`] = `"Illegal plugin ID value "/docs": it should only contain alphanumerics, underscores, and dashes."`;
 
diff --git a/packages/docusaurus-utils-validation/src/validationSchemas.ts b/packages/docusaurus-utils-validation/src/validationSchemas.ts
index 5d2959359c81..a0a8c72f16b7 100644
--- a/packages/docusaurus-utils-validation/src/validationSchemas.ts
+++ b/packages/docusaurus-utils-validation/src/validationSchemas.ts
@@ -91,7 +91,7 @@ export const PathnameSchema = Joi.string()
     return val;
   })
   .message(
-    '{{#label}} is not a valid pathname. Pathname should start with slash and not contain any domain or query string.',
+    '{{#label}} ({{#value}}) is not a valid pathname. Pathname should start with slash and not contain any domain or query string.',
   );
 
 // Normalized schema for url path segments: baseUrl + routeBasePath...