diff --git a/ShareExtension/Sources/ShareViewController.swift b/ShareExtension/Sources/ShareViewController.swift
index a0678cd..f7493a6 100644
--- a/ShareExtension/Sources/ShareViewController.swift
+++ b/ShareExtension/Sources/ShareViewController.swift
@@ -133,7 +133,7 @@ extension CustomShareViewController: ShareExtensionBackGroundViewDelegate {
             return
         }
         
-        let urlString = "iBox://url?data=\(sharedURL)"
+        let urlString = "iBox://url?data=\(sharedURL)".addingPercentEncoding(withAllowedCharacters: .urlQueryAllowed) ?? ""
         
         if let openUrl = URL(string: urlString) {
             if self.openURL(openUrl) {
@@ -143,6 +143,7 @@ extension CustomShareViewController: ShareExtensionBackGroundViewDelegate {
             }
         } else {
             print("url error")
+            // 해당 url은 사용할 수 없음을 보여주는 뷰를 만들어야함.
         }
     }
 }
diff --git a/iBox/Sources/Shared/AddBookmarkManager.swift b/iBox/Sources/Shared/AddBookmarkManager.swift
index 68ce206..1b0962d 100644
--- a/iBox/Sources/Shared/AddBookmarkManager.swift
+++ b/iBox/Sources/Shared/AddBookmarkManager.swift
@@ -20,9 +20,9 @@ class AddBookmarkManager {
     
     private func update(with data: (title: String?, data: String?, faviconUrl: String?)) {
         DispatchQueue.main.async {
-            self.incomingTitle = data.title
-            self.incomingData = data.data
-            self.incomingFaviconUrl = data.faviconUrl
+            self.incomingTitle = data.title?.removingPercentEncoding
+            self.incomingData = data.data?.removingPercentEncoding
+            self.incomingFaviconUrl = data.faviconUrl?.removingPercentEncoding
         }
     }
     
@@ -40,21 +40,31 @@ class AddBookmarkManager {
     }
     
     private func extractDataParameter(from url: URL) -> String? {
-        guard let components = URLComponents(url: url, resolvingAgainstBaseURL: false),
-              let queryItems = components.queryItems else {
+        let urlString = url.absoluteString
+        
+        guard let range = urlString.range(of: "url?data=") else {
             return nil
         }
-        return queryItems.first { $0.name == "data" }?.value
+
+        let dataParameter = urlString[range.upperBound...]
+        return String(dataParameter).removingPercentEncoding
     }
     
     private func fetchWebsiteDetails(from url: URL) {
         let task = URLSession.shared.dataTask(with: url) { [weak self] data, response, error in
-            guard let data = data, error == nil,
-                  let html = String(data: data, encoding: .utf8) else {
+            guard let data = data, error == nil else {
                 print("Error downloading HTML: \(String(describing: error))")
                 return
             }
             
+            let encodingName = (response as? HTTPURLResponse)?.textEncodingName ?? "utf-8"
+            let encoding = String.Encoding(rawValue: CFStringConvertEncodingToNSStringEncoding(CFStringConvertIANACharSetNameToEncoding(encodingName as CFString)))
+
+            guard let html = String(data: data, encoding: encoding) else {
+                print("Failed to decode data with encoding: \(encodingName)")
+                return
+            }
+            
             self?.parseHTML(html, url)
         }
         task.resume()
@@ -63,7 +73,7 @@ class AddBookmarkManager {
     func navigateToAddBookmarkView(from url: URL, in tabBarController: UITabBarController) {
         guard url.scheme == "iBox", let urlString = extractDataParameter(from: url) else { return }
         guard let url = URL(string: urlString) else {
-            print("Invalid URL")
+            print("Invalid URL \(urlString)")
             return
         }
         
diff --git a/iBox/Sources/Web/WebViewController.swift b/iBox/Sources/Web/WebViewController.swift
index 5f017ea..4c09737 100644
--- a/iBox/Sources/Web/WebViewController.swift
+++ b/iBox/Sources/Web/WebViewController.swift
@@ -46,9 +46,9 @@ class WebViewController: BaseViewController<WebView>, BaseViewControllerProtocol
 extension WebViewController: WebViewDelegate {
     
     func pushAddBookMarkViewController(url: URL) {
-        AddBookmarkManager.shared.incomingData = url.absoluteString
+        let encodingURL = url.absoluteString.addingPercentEncoding(withAllowedCharacters: .urlQueryAllowed) ?? ""
         
-        if let iBoxUrl = URL(string: "iBox://url?data=" + url.absoluteString) {
+        if let iBoxUrl = URL(string: "iBox://url?data=" + encodingURL) {
             if let tabBarController = findMainTabBarController() {
                 AddBookmarkManager.shared.navigateToAddBookmarkView(from: iBoxUrl, in: tabBarController)
             }