diff --git a/LocalPackages/AIChat/Sources/AIChat/URL+Extension.swift b/LocalPackages/AIChat/Sources/AIChat/URL+Extension.swift
index 1e0978f346..b09269d7bb 100644
--- a/LocalPackages/AIChat/Sources/AIChat/URL+Extension.swift
+++ b/LocalPackages/AIChat/Sources/AIChat/URL+Extension.swift
@@ -20,6 +20,12 @@
 import Foundation
 
 extension URL {
+    enum Constants {
+        static let duckDuckGoHost = "duckduckgo.com"
+        static let chatQueryName = "ia"
+        static let chatQueryValue = "chat"
+    }
+
     func addingOrReplacingQueryItem(_ queryItem: URLQueryItem) -> URL {
         guard var urlComponents = URLComponents(url: self, resolvingAgainstBaseURL: false) else {
             return self
@@ -34,7 +40,7 @@ extension URL {
     }
 
     var isDuckAIURL: Bool {
-        guard let host = self.host, host == "duckduckgo.com" else {
+        guard let host = self.host, host == Constants.duckDuckGoHost else {
             return false
         }
 
@@ -43,6 +49,6 @@ extension URL {
             return false
         }
 
-        return queryItems.contains { $0.name == "ia" && $0.value == "chat" }
+        return queryItems.contains { $0.name == Constants.chatQueryName && $0.value == Constants.chatQueryValue }
     }
 }
diff --git a/LocalPackages/AIChat/Tests/URLExtensionTests.swift b/LocalPackages/AIChat/Tests/URLExtensionTests.swift
index fc72d2a759..caa5b50236 100644
--- a/LocalPackages/AIChat/Tests/URLExtensionTests.swift
+++ b/LocalPackages/AIChat/Tests/URLExtensionTests.swift
@@ -20,10 +20,23 @@
 import XCTest
 @testable import AIChat
 
-class URLExtensionTests: XCTestCase {
+final class URLExtensionTests: XCTestCase {
+    private enum TestURLs {
+        static let exampleDomain = "https://example.com"
+        static let duckDuckGoDomain = "https://duckduckgo.com"
+
+        static let example = "\(exampleDomain)"
+        static let exampleWithKeyOldValue = "\(exampleDomain)?key=oldValue"
+        static let exampleWithExistingQuery = "\(exampleDomain)?existingKey=existingValue"
+        static let exampleWithMultipleQueryItems = "\(exampleDomain)?key1=value1&key2=value2"
+        static let duckDuckGoChat = "\(duckDuckGoDomain)/?ia=chat"
+        static let duckDuckGoWithMissingQuery = "\(duckDuckGoDomain)/"
+        static let duckDuckGoDifferentQuery = "\(duckDuckGoDomain)/?ia=search"
+        static let duckDuckGoAdditionalQueryItems = "\(duckDuckGoDomain)/?ia=chat&other=param"
+    }
 
     func testAddingQueryItemToEmptyURL() {
-        let url = URL(string: "https://example.com")!
+        let url = URL(string: TestURLs.example)!
         let queryItem = URLQueryItem(name: "key", value: "value")
         let result = url.addingOrReplacingQueryItem(queryItem)
 
@@ -33,7 +46,7 @@ class URLExtensionTests: XCTestCase {
     }
 
     func testReplacingExistingQueryItem() {
-        let url = URL(string: "https://example.com?key=oldValue")!
+        let url = URL(string: TestURLs.exampleWithKeyOldValue)!
         let queryItem = URLQueryItem(name: "key", value: "newValue")
         let result = url.addingOrReplacingQueryItem(queryItem)
 
@@ -43,7 +56,7 @@ class URLExtensionTests: XCTestCase {
     }
 
     func testAddingQueryItemToExistingQuery() {
-        let url = URL(string: "https://example.com?existingKey=existingValue")!
+        let url = URL(string: TestURLs.exampleWithExistingQuery)!
         let queryItem = URLQueryItem(name: "newKey", value: "newValue")
         let result = url.addingOrReplacingQueryItem(queryItem)
 
@@ -53,7 +66,7 @@ class URLExtensionTests: XCTestCase {
     }
 
     func testReplacingOneOfMultipleQueryItems() {
-        let url = URL(string: "https://example.com?key1=value1&key2=value2")!
+        let url = URL(string: TestURLs.exampleWithMultipleQueryItems)!
         let queryItem = URLQueryItem(name: "key1", value: "newValue1")
         let result = url.addingOrReplacingQueryItem(queryItem)
 
@@ -63,7 +76,7 @@ class URLExtensionTests: XCTestCase {
     }
 
     func testAddingQueryItemWithNilValue() {
-        let url = URL(string: "https://example.com")!
+        let url = URL(string: TestURLs.example)!
         let queryItem = URLQueryItem(name: "key", value: nil)
         let result = url.addingOrReplacingQueryItem(queryItem)
 
@@ -73,7 +86,7 @@ class URLExtensionTests: XCTestCase {
     }
 
     func testReplacingQueryItemWithNilValue() {
-        let url = URL(string: "https://example.com?key=value")!
+        let url = URL(string: "\(TestURLs.example)?key=value")!
         let queryItem = URLQueryItem(name: "key", value: nil)
         let result = url.addingOrReplacingQueryItem(queryItem)
 
@@ -83,7 +96,7 @@ class URLExtensionTests: XCTestCase {
     }
 
     func testIsDuckAIURLWithValidURL() {
-        if let url = URL(string: "https://duckduckgo.com/?ia=chat") {
+        if let url = URL(string: TestURLs.duckDuckGoChat) {
             XCTAssertTrue(url.isDuckAIURL, "The URL should be identified as a DuckDuckGo AI URL.")
         } else {
             XCTFail("Failed to create URL from string.")
@@ -91,7 +104,7 @@ class URLExtensionTests: XCTestCase {
     }
 
     func testIsDuckAIURLWithInvalidDomain() {
-        if let url = URL(string: "https://example.com/?ia=chat") {
+        if let url = URL(string: TestURLs.exampleWithExistingQuery) {
             XCTAssertFalse(url.isDuckAIURL, "The URL should not be identified as a DuckDuckGo AI URL due to the domain.")
         } else {
             XCTFail("Failed to create URL from string.")
@@ -99,7 +112,7 @@ class URLExtensionTests: XCTestCase {
     }
 
     func testIsDuckAIURLWithMissingQueryItem() {
-        if let url = URL(string: "https://duckduckgo.com/") {
+        if let url = URL(string: TestURLs.duckDuckGoWithMissingQuery) {
             XCTAssertFalse(url.isDuckAIURL, "The URL should not be identified as a DuckDuckGo AI URL due to missing query item.")
         } else {
             XCTFail("Failed to create URL from string.")
@@ -107,7 +120,7 @@ class URLExtensionTests: XCTestCase {
     }
 
     func testIsDuckAIURLWithDifferentQueryItem() {
-        if let url = URL(string: "https://duckduckgo.com/?ia=search") {
+        if let url = URL(string: TestURLs.duckDuckGoDifferentQuery) {
             XCTAssertFalse(url.isDuckAIURL, "The URL should not be identified as a DuckDuckGo AI URL due to different query item value.")
         } else {
             XCTFail("Failed to create URL from string.")
@@ -115,7 +128,7 @@ class URLExtensionTests: XCTestCase {
     }
 
     func testIsDuckAIURLWithAdditionalQueryItems() {
-        if let url = URL(string: "https://duckduckgo.com/?ia=chat&other=param") {
+        if let url = URL(string: TestURLs.duckDuckGoAdditionalQueryItems) {
             XCTAssertTrue(url.isDuckAIURL, "The URL should be identified as a DuckDuckGo AI URL even with additional query items.")
         } else {
             XCTFail("Failed to create URL from string.")