diff --git a/DrSousan.Api/Pages/Blog/Post.cshtml b/DrSousan.Api/Pages/Blog/Post.cshtml
index d25d814..e0eb02d 100644
--- a/DrSousan.Api/Pages/Blog/Post.cshtml
+++ b/DrSousan.Api/Pages/Blog/Post.cshtml
@@ -8,6 +8,8 @@
     var articleType = ViewData["ArticleType"]?.ToString() ?? "MedicalWebPage";
     var pubDate     = post.PublishedAt?.ToString("yyyy-MM-ddTHH:mm:ssZ") ?? "";
     var updDate     = post.UpdatedAt.ToString("yyyy-MM-ddTHH:mm:ssZ");
+    // Escape a string for safe embedding inside a JSON string literal.
+    static string J(string? s) => System.Text.Json.JsonSerializer.Serialize(s ?? "")[1..^1];
 }
 
 @section Head {
@@ -32,13 +34,13 @@
     <script type="application/ld+json">
     {
       "@@context": "https://schema.org",
-      "@@type": "@articleType",
-      "headline": "@post.Title.Replace("\"","\\\"")  ",
-      "description": "@(ViewData["MetaDesc"]?.ToString()?.Replace("\"","\\\""))",
-      "author": { "@@type": "Person", "name": "@post.Author" },
+      "@@type": "@J(articleType)",
+      "headline": "@J(post.Title)",
+      "description": "@J(ViewData["MetaDesc"]?.ToString())",
+      "author": { "@@type": "Person", "name": "@J(post.Author)" },
       "publisher": {
         "@@type": "Organization",
-        "name": "@ViewData["SiteName"]",
+        "name": "@J(ViewData["SiteName"]?.ToString())",
         "url": "@baseUrl"
       },
       "datePublished": "@pubDate",
diff --git a/DrSousan.Api/Program.cs b/DrSousan.Api/Program.cs
index 61d79c7..df84b2a 100644
--- a/DrSousan.Api/Program.cs
+++ b/DrSousan.Api/Program.cs
@@ -57,6 +57,10 @@ builder.Services.ConfigureHttpJsonOptions(opts =>
 // ── Build ─────────────────────────────────────────────────────────────────────
 var app = builder.Build();
 
+// In production return a clean 500 page rather than an unhandled exception dump
+// (Googlebot seeing raw 5xx responses causes GSC "Server error" indexing failures).
+if (!app.Environment.IsDevelopment())
+    app.UseExceptionHandler("/error");
 
 app.UseCors();
 app.UseDefaultFiles();   // serves /admin/index.html for /admin/ (wwwroot/index.html deleted → no conflict with Razor Pages)
@@ -839,6 +843,20 @@ app.MapGet("/api/seo/stats", async (AppDbContext db) =>
     return Results.Ok(new { total, views, topPosts, noMeta });
 }).RequireAuthorization();
 
+// Generic error page — returns 500 with a minimal HTML body so Googlebot
+// gets a proper HTTP 500 (not a connection-reset) and retries cleanly.
+app.Map("/error", (HttpContext ctx) =>
+{
+    ctx.Response.StatusCode = 500;
+    ctx.Response.ContentType = "text/html; charset=utf-8";
+    return ctx.Response.WriteAsync(
+        "<!DOCTYPE html><html lang='fa'><head><meta charset='utf-8'>" +
+        "<title>خطای سرور</title></head><body dir='rtl'>" +
+        "<h1>خطای موقت سرور</h1>" +
+        "<p>مشکلی پیش آمده. لطفاً دقایقی دیگر مجدداً تلاش کنید.</p>" +
+        "</body></html>");
+});
+
 app.MapRazorPages();
 app.Run();
 return 0;
