diff --git a/v2rayN/ServiceLib/Handler/ConnectionHandler.cs b/v2rayN/ServiceLib/Handler/ConnectionHandler.cs
index 05825d93..7cef4641 100644
--- a/v2rayN/ServiceLib/Handler/ConnectionHandler.cs
+++ b/v2rayN/ServiceLib/Handler/ConnectionHandler.cs
@@ -3,6 +3,11 @@ namespace ServiceLib.Handler;
 public static class ConnectionHandler
 {
     private static readonly string _tag = "ConnectionHandler";
+    private static readonly string[] _speedtestIpApiUrls =
+    [
+        "https://api.ipapi.is",
+        "https://api.ip.sb/geoip"
+    ];
 
     public static async Task<string> RunAvailabilityCheck()
     {
@@ -20,23 +25,83 @@ public static class ConnectionHandler
             return null;
         }
 
-        var downloadHandle = new DownloadService();
-        var result = await downloadHandle.TryDownloadString(url, true, "");
-        if (result == null)
+        var port = AppManager.Instance.GetLocalPort(EInboundProtocol.socks);
+        var webProxy = new WebProxy($"socks5://{Global.Loopback}:{port}");
+        var ipInfo = await GetIpApiInfo(url, webProxy, 10);
+        return FormatCountryAndIp(ipInfo, false);
+    }
+
+    public static async Task<string?> GetCountryCodeAndIP(IWebProxy? webProxy, int downloadTimeout = 10)
+    {
+        foreach (var url in _speedtestIpApiUrls)
+        {
+            var ipInfo = await GetIpApiInfo(url, webProxy, downloadTimeout);
+            var compact = FormatCountryAndIp(ipInfo, true);
+            if (compact.IsNotEmpty())
+            {
+                return compact;
+            }
+        }
+
+        return null;
+    }
+
+    private static async Task<IPAPIInfo?> GetIpApiInfo(string url, IWebProxy? webProxy, int downloadTimeout)
+    {
+        if (url.IsNullOrEmpty())
         {
             return null;
         }
 
-        var ipInfo = JsonUtils.Deserialize<IPAPIInfo>(result);
+        try
+        {
+            using var cts = new CancellationTokenSource(TimeSpan.FromSeconds(downloadTimeout));
+            using var client = new HttpClient(new SocketsHttpHandler()
+            {
+                Proxy = webProxy,
+                UseProxy = webProxy != null
+            });
+            client.DefaultRequestHeaders.UserAgent.TryParseAdd(Utils.GetVersion(false));
+
+            using var response = await client.GetAsync(url, cts.Token).ConfigureAwait(false);
+            if (!response.IsSuccessStatusCode)
+            {
+                return null;
+            }
+
+            var result = await response.Content.ReadAsStringAsync(cts.Token).ConfigureAwait(false);
+            return JsonUtils.Deserialize<IPAPIInfo>(result);
+        }
+        catch
+        {
+            return null;
+        }
+    }
+
+    private static string? FormatCountryAndIp(IPAPIInfo? ipInfo, bool compact)
+    {
         if (ipInfo == null)
         {
             return null;
         }
 
-        var ip = ipInfo.ip ?? ipInfo.clientIp ?? ipInfo.ip_addr ?? ipInfo.query;
-        var country = ipInfo.country_code ?? ipInfo.country ?? ipInfo.countryCode ?? ipInfo.location?.country_code;
+        var ip = (ipInfo.ip ?? ipInfo.clientIp ?? ipInfo.ip_addr ?? ipInfo.query)?.Trim();
+        if (ip.IsNullOrEmpty())
+        {
+            return null;
+        }
 
-        return $"({country ?? "unknown"}) {ip}";
+        var country = (ipInfo.country_code ?? ipInfo.countryCode ?? ipInfo.location?.country_code ?? ipInfo.country)?.Trim();
+        if (country.IsNullOrEmpty())
+        {
+            country = "unknown";
+        }
+        else
+        {
+            country = country.ToUpperInvariant();
+        }
+
+        return compact ? $"{country}{ip}" : $"({country}) {ip}";
     }
 
     private static async Task<int> GetRealPingTimeInfo()
diff --git a/v2rayN/ServiceLib/Models/ServerTestItem.cs b/v2rayN/ServiceLib/Models/ServerTestItem.cs
index c16a598f..a935e7a0 100644
--- a/v2rayN/ServiceLib/Models/ServerTestItem.cs
+++ b/v2rayN/ServiceLib/Models/ServerTestItem.cs
@@ -8,5 +8,6 @@ public class ServerTestItem
     public int Port { get; set; }
     public EConfigType ConfigType { get; set; }
     public bool AllowTest { get; set; }
+    public bool NeedAutoFillRemarks { get; set; }
     public int QueueNum { get; set; }
 }
diff --git a/v2rayN/ServiceLib/Services/SpeedtestService.cs b/v2rayN/ServiceLib/Services/SpeedtestService.cs
index 207f7dfc..db8cc1b0 100644
--- a/v2rayN/ServiceLib/Services/SpeedtestService.cs
+++ b/v2rayN/ServiceLib/Services/SpeedtestService.cs
@@ -6,13 +6,19 @@ public class SpeedtestService(Config config, Func<SpeedTestResult, Task> updateF
     private readonly Config? _config = config;
     private readonly Func<SpeedTestResult, Task>? _updateFunc = updateFunc;
     private static readonly ConcurrentBag<string> _lstExitLoop = new();
+    private int _remarksUpdated;
 
     public void RunLoop(ESpeedActionType actionType, List<ProfileItem> selecteds)
     {
         Task.Run(async () =>
         {
+            Interlocked.Exchange(ref _remarksUpdated, 0);
             await RunAsync(actionType, selecteds);
             await ProfileExManager.Instance.SaveTo();
+            if (Interlocked.CompareExchange(ref _remarksUpdated, 0, 0) > 0)
+            {
+                AppEvents.ProfilesRefreshRequested.Publish();
+            }
             await UpdateFunc("", ResUI.SpeedtestingCompleted);
         });
     }
@@ -80,6 +86,7 @@ public class SpeedtestService(Config config, Func<SpeedTestResult, Task> updateF
                 Address = it.Address,
                 Port = it.Port,
                 ConfigType = it.ConfigType,
+                NeedAutoFillRemarks = it.Remarks.IsNullOrEmpty(),
                 QueueNum = selecteds.IndexOf(it)
             });
         }
@@ -297,11 +304,48 @@ public class SpeedtestService(Config config, Func<SpeedTestResult, Task> updateF
         var webProxy = new WebProxy($"socks5://{Global.Loopback}:{it.Port}");
         var responseTime = await ConnectionHandler.GetRealPingTime(_config.SpeedTestItem.SpeedPingTestUrl, webProxy, 10);
 
+        if (responseTime > 0 && it.NeedAutoFillRemarks)
+        {
+            await TryAutoFillRemarks(it, webProxy);
+        }
+
         ProfileExManager.Instance.SetTestDelay(it.IndexId, responseTime);
         await UpdateFunc(it.IndexId, responseTime.ToString());
         return responseTime;
     }
 
+    private async Task TryAutoFillRemarks(ServerTestItem it, IWebProxy webProxy)
+    {
+        if (!it.NeedAutoFillRemarks || it.IndexId.IsNullOrEmpty())
+        {
+            return;
+        }
+
+        var remarks = await ConnectionHandler.GetCountryCodeAndIP(webProxy, 8);
+        if (remarks.IsNullOrEmpty())
+        {
+            return;
+        }
+
+        var profileItem = await AppManager.Instance.GetProfileItem(it.IndexId);
+        if (profileItem == null)
+        {
+            return;
+        }
+        if (profileItem.Remarks.IsNotEmpty())
+        {
+            it.NeedAutoFillRemarks = false;
+            return;
+        }
+
+        profileItem.Remarks = remarks;
+        if (await SQLiteHelper.Instance.UpdateAsync(profileItem) > 0)
+        {
+            it.NeedAutoFillRemarks = false;
+            Interlocked.Increment(ref _remarksUpdated);
+        }
+    }
+
     private async Task DoSpeedTest(DownloadService downloadHandle, ServerTestItem it)
     {
         await UpdateFunc(it.IndexId, "", ResUI.Speedtesting);