diff --git a/DysonNetwork.Zone/Pages/Error.cshtml b/DysonNetwork.Zone/Pages/Error.cshtml
index b5105b6..0aa49e0 100644
--- a/DysonNetwork.Zone/Pages/Error.cshtml
+++ b/DysonNetwork.Zone/Pages/Error.cshtml
@@ -1,26 +1,23 @@
-@page
+@page "/Error/{statusCode?}"
 @model ErrorModel
 @{
     ViewData["Title"] = "Error";
+    ViewData["SiteName"] = Model.SiteName ?? "main";
 }
 
-<h1 class="text-danger">Error.</h1>
-<h2 class="text-danger">An error occurred while processing your request.</h2>
-
-@if (Model.ShowRequestId)
-{
-    <p>
-        <strong>Request ID:</strong> <code>@Model.RequestId</code>
-    </p>
-}
-
-<h3>Development Mode</h3>
-<p>
-    Swapping to the <strong>Development</strong> environment displays detailed information about the error that occurred.
-</p>
-<p>
-    <strong>The Development environment shouldn't be enabled for deployed applications.</strong>
-    It can result in displaying sensitive information from exceptions to end users.
-    For local debugging, enable the <strong>Development</strong> environment by setting the <strong>ASPNETCORE_ENVIRONMENT</strong> environment variable to <strong>Development</strong>
-    and restarting the app.
-</p>
\ No newline at end of file
+<div class="h-screen flex justify-center items-center">
+    <div class="text-center max-w-120">
+        <img src="~/favicon.png" width="80" height="80" alt="Logo" class="mb-1 mx-auto"/>
+        <h1 class="text-2xl">@(Model.StatusCode?.ToString() ?? "Error")</h1>
+        <p>Something went wrong...</p>
+        <p class="text-sm opacity-80 mt-1">Powered by the Solar Network Pages</p>
+        <div class="text-xs opacity-70 mt-1">
+            <p>Path: <b>@Model.CurrentPath</b></p>
+            <p>Site ID: <b>@(Model.Site?.Id.ToString() ?? "none")</b></p>
+            @if (Model.ShowRequestId)
+            {
+                <p>Request ID: <b>@Model.RequestId</b></p>
+            }
+        </div>
+    </div>
+</div>
\ No newline at end of file
diff --git a/DysonNetwork.Zone/Pages/Error.cshtml.cs b/DysonNetwork.Zone/Pages/Error.cshtml.cs
index b52a6d8..5bab05b 100644
--- a/DysonNetwork.Zone/Pages/Error.cshtml.cs
+++ b/DysonNetwork.Zone/Pages/Error.cshtml.cs
@@ -1,4 +1,6 @@
 using System.Diagnostics;
+using DysonNetwork.Shared.Models;
+using DysonNetwork.Zone.Publication;
 using Microsoft.AspNetCore.Mvc;
 using Microsoft.AspNetCore.Mvc.RazorPages;
 
@@ -12,8 +14,20 @@ public class ErrorModel : PageModel
 
     public bool ShowRequestId => !string.IsNullOrEmpty(RequestId);
 
+    [FromRoute] public new int? StatusCode { get; set; }
+    
+    public SnPublicationSite? Site { get; set; }
+    public string? SiteName { get; set; }
+    public string? CurrentPath { get; set; }
+
     public void OnGet()
     {
         RequestId = Activity.Current?.Id ?? HttpContext.TraceIdentifier;
+
+        if (HttpContext.Items.TryGetValue(PublicationSiteMiddleware.SiteContextKey, out var site))
+            Site = site as SnPublicationSite;
+
+        SiteName = Request.Headers["X-SiteName"].ToString();
+        CurrentPath = Request.Path;
     }
 }
\ No newline at end of file
diff --git a/DysonNetwork.Zone/Pages/Index.cshtml b/DysonNetwork.Zone/Pages/Index.cshtml
index 9235908..8c2a406 100644
--- a/DysonNetwork.Zone/Pages/Index.cshtml
+++ b/DysonNetwork.Zone/Pages/Index.cshtml
@@ -2,22 +2,12 @@
 @model IndexModel
 @{
     ViewData["Title"] = "Solar Network Pages";
-    ViewData["SiteName"] = Model.SiteName ?? "main";
 }
 
 <div class="h-screen flex justify-center items-center">
     <div class="text-center max-w-96">
         <img src="~/favicon.png" width="80" height="80" alt="Logo" class="mb-1 mx-auto"/>
-        <h1 class="text-2xl">404 Not Found</h1>
+        <h1 class="text-2xl">Hello World 👋</h1>
         <p>Here are the Solar Network Pages</p>
-        <p>And you're accessing the site <b>@(Model.SiteName ?? "main")</b></p>
-        <p class="text-sm opacity-80 mt-1">
-            The reason you're seeing this is the author of the site
-            haven't configure anything that match this route.
-        </p>
-        <div class="text-xs opacity-70 mt-1">
-            <p>Path: <b>@Model.CurrentPath</b></p>
-            <p>Site ID: <b>@(Model.Site?.Id.ToString() ?? "none")</b></p>
-        </div>
     </div>
 </div>
diff --git a/DysonNetwork.Zone/Pages/Index.cshtml.cs b/DysonNetwork.Zone/Pages/Index.cshtml.cs
index 4720b28..7e9b36c 100644
--- a/DysonNetwork.Zone/Pages/Index.cshtml.cs
+++ b/DysonNetwork.Zone/Pages/Index.cshtml.cs
@@ -1,70 +1,10 @@
-using DysonNetwork.Shared.Models;
-using DysonNetwork.Zone.Publication;
-using Microsoft.AspNetCore.Mvc;
 using Microsoft.AspNetCore.Mvc.RazorPages;
-using Microsoft.AspNetCore.StaticFiles;
-using Microsoft.EntityFrameworkCore;
-using System.Text.Json;
 
 namespace DysonNetwork.Zone.Pages;
 
-public class IndexModel(AppDatabase db, PublicationSiteManager psm) : PageModel
+public class IndexModel : PageModel
 {
-    public SnPublicationSite? Site { get; set; }
-    public string? SiteName { get; set; }
-    public string? CurrentPath { get; set; }
-
-    public async Task<IActionResult> OnGet(string? path = null)
+    public void OnGet()
     {
-        var siteNameValue = Request.Headers["X-SiteName"].ToString();
-        SiteName = siteNameValue;
-        CurrentPath = Path.Combine("/", path ?? "");
-        if (string.IsNullOrEmpty(siteNameValue))
-        {
-            SiteName = null;
-            return Page();
-        }
-
-        var capturedName = siteNameValue;
-        Site = await db.PublicationSites.FirstOrDefaultAsync(s => s.Slug == capturedName);
-        if (Site == null) return Page();
-        var pagePath = CurrentPath;
-
-        var page = await db.PublicationPages.FirstOrDefaultAsync(p => p.SiteId == Site.Id && p.Path == pagePath);
-        if (page != null)
-        {
-            switch (page.Type)
-            {
-                case PublicationPageType.HtmlPage
-                    when page.Config.TryGetValue("html", out var html) && html is JsonElement content:
-                    return Content(content.ToString(), "text/html");
-                case PublicationPageType.Redirect
-                    when page.Config.TryGetValue("url", out var url) && url is JsonElement redirectUrl:
-                    return Redirect(redirectUrl.ToString());
-            }
-        }
-
-        // If the site is enabled the self-managed mode, try lookup the files then
-        if (Site.Mode == PublicationSiteMode.SelfManaged)
-        {
-            var provider = new FileExtensionContentTypeProvider();
-            var hostedFilePath = psm.GetValidatedFullPath(Site.Id, CurrentPath);
-            if (System.IO.File.Exists(hostedFilePath))
-            {
-                if (!provider.TryGetContentType(hostedFilePath, out var mimeType))
-                    mimeType = "text/html";
-                var fileStream = new FileStream(hostedFilePath, FileMode.Open, FileAccess.Read);
-                return new FileStreamResult(fileStream, mimeType);
-            }
-
-            var hostedNotFoundPath = psm.GetValidatedFullPath(Site.Id, "404.html");
-            if (System.IO.File.Exists(hostedNotFoundPath))
-            {
-                var fileStream = new FileStream(hostedNotFoundPath, FileMode.Open, FileAccess.Read);
-                return new FileStreamResult(fileStream, "text/html");
-            }
-        }
-
-        return Page();
     }
 }
\ No newline at end of file
diff --git a/DysonNetwork.Zone/Program.cs b/DysonNetwork.Zone/Program.cs
index b227cd1..8d987eb 100644
--- a/DysonNetwork.Zone/Program.cs
+++ b/DysonNetwork.Zone/Program.cs
@@ -3,6 +3,7 @@ using DysonNetwork.Zone.Startup;
 using DysonNetwork.Shared.Auth;
 using DysonNetwork.Shared.Http;
 using DysonNetwork.Shared.Registry;
+using DysonNetwork.Zone.Publication;
 using Microsoft.EntityFrameworkCore;
 
 var builder = WebApplication.CreateBuilder(args);
@@ -11,7 +12,7 @@ builder.AddServiceDefaults();
 
 builder.ConfigureAppKestrel(builder.Configuration);
 
-builder.Services.AddRazorPages(options => options.Conventions.AddPageRoute("/Index", "{**path}"));
+builder.Services.AddRazorPages();
 builder.Services.AddControllers();
 
 builder.Services.AddAppServices();
@@ -46,8 +47,11 @@ using (var scope = app.Services.CreateScope())
 if (!app.Environment.IsDevelopment())
     app.UseExceptionHandler("/Error");
 
+app.UseMiddleware<PublicationSiteMiddleware>();
+
 app.UseStaticFiles();
 app.UseRouting();
+app.UseStatusCodePagesWithReExecute("/Error/{0}");
 app.ConfigureAppMiddleware(builder.Configuration);
 app.MapRazorPages();
 
diff --git a/DysonNetwork.Zone/Publication/PublicationSiteMiddleware.cs b/DysonNetwork.Zone/Publication/PublicationSiteMiddleware.cs
new file mode 100644
index 0000000..3892e3b
--- /dev/null
+++ b/DysonNetwork.Zone/Publication/PublicationSiteMiddleware.cs
@@ -0,0 +1,77 @@
+using System.Text.Json;
+using DysonNetwork.Shared.Models;
+using Microsoft.AspNetCore.StaticFiles;
+using Microsoft.EntityFrameworkCore;
+
+namespace DysonNetwork.Zone.Publication;
+
+public class PublicationSiteMiddleware(RequestDelegate next)
+{
+    public const string SiteContextKey = "PubSite";
+    
+    public async Task InvokeAsync(HttpContext context, AppDatabase db, PublicationSiteManager psm)
+    {
+        var siteNameValue = context.Request.Headers["X-SiteName"].ToString();
+        var currentPath = context.Request.Path.Value ?? "";
+
+        if (string.IsNullOrEmpty(siteNameValue))
+        {
+            await next(context);
+            return;
+        }
+
+        var site = await db.PublicationSites
+            .FirstOrDefaultAsync(s => EF.Functions.ILike(s.Name, siteNameValue));
+        if (site == null)
+        {
+            await next(context);
+            return;
+        }
+
+        context.Items[SiteContextKey] = site;
+        
+        var page = await db.PublicationPages
+            .FirstOrDefaultAsync(p => p.SiteId == site.Id && p.Path == currentPath);
+        if (page != null)
+        {
+            switch (page.Type)
+            {
+                case PublicationPageType.HtmlPage
+                    when page.Config.TryGetValue("html", out var html) && html is JsonElement content:
+                    context.Response.ContentType = "text/html";
+                    await context.Response.WriteAsync(content.ToString());
+                    return;
+                case PublicationPageType.Redirect
+                    when page.Config.TryGetValue("url", out var url) && url is JsonElement redirectUrl:
+                    context.Response.Redirect(redirectUrl.ToString());
+                    return;
+            }
+        }
+
+        // If the site is enabled the self-managed mode, try lookup the files then
+        if (site.Mode == PublicationSiteMode.SelfManaged)
+        {
+            var provider = new FileExtensionContentTypeProvider();
+            var hostedFilePath = psm.GetValidatedFullPath(site.Id, currentPath);
+            if (File.Exists(hostedFilePath))
+            {
+                if (!provider.TryGetContentType(hostedFilePath, out var mimeType))
+                    mimeType = "text/html";
+
+                context.Response.ContentType = mimeType;
+                await context.Response.SendFileAsync(hostedFilePath);
+                return;
+            }
+
+            var hostedNotFoundPath = psm.GetValidatedFullPath(site.Id, "404.html");
+            if (File.Exists(hostedNotFoundPath))
+            {
+                context.Response.ContentType = "text/html";
+                await context.Response.SendFileAsync(hostedNotFoundPath);
+                return;
+            }
+        }
+
+        await next(context);
+    }
+}
diff --git a/DysonNetwork.Zone/Publication/PublicationSiteService.cs b/DysonNetwork.Zone/Publication/PublicationSiteService.cs
index b172e0d..1ace442 100644
--- a/DysonNetwork.Zone/Publication/PublicationSiteService.cs
+++ b/DysonNetwork.Zone/Publication/PublicationSiteService.cs
@@ -30,7 +30,7 @@ public class PublicationSiteService(
             if (pub == null) throw new InvalidOperationException("Publisher not found.");
             pubId = pub.Id;
         }
-        
+
         return await db.PublicationSites
             .If(pubId.HasValue, q => q.Where(s => s.PublisherId == pubId.Value))
             .Include(s => s.Pages)
@@ -47,21 +47,31 @@ public class PublicationSiteService(
 
     public async Task<SnPublicationSite> CreateSite(SnPublicationSite site, Guid accountId)
     {
-        var perk = (await remoteAccounts.GetAccount(accountId)).PerkSubscription;
-        var perkLevel = perk is not null ? PerkSubscriptionPrivilege.GetPrivilegeFromIdentifier(perk.Identifier) : 0;
+        var existingSlugSite = await db.PublicationSites
+            .AnyAsync(s => EF.Functions.ILike(s.Slug, site.Slug));
+        if (existingSlugSite) throw new InvalidOperationException("Site with the slug already exists.");
 
-        var maxSite = perkLevel switch
+        var account = await remoteAccounts.GetAccount(accountId);
+        if (!account.IsSuperuser)
         {
-            1 => 2,
-            2 => 3,
-            3 => 5,
-            _ => 1
-        };
+            var perk = account.PerkSubscription;
+            var perkLevel = perk is not null
+                ? PerkSubscriptionPrivilege.GetPrivilegeFromIdentifier(perk.Identifier)
+                : 0;
 
-        // Check if account has reached the maximum number of sites
-        var existingSitesCount = await db.PublicationSites.CountAsync(s => s.AccountId == accountId);
-        if (existingSitesCount >= maxSite)
-            throw new InvalidOperationException("Account has reached the maximum number of sites allowed.");
+            var maxSite = perkLevel switch
+            {
+                1 => 2,
+                2 => 3,
+                3 => 5,
+                _ => 1
+            };
+
+            // Check if account has reached the maximum number of sites
+            var existingSitesCount = await db.PublicationSites.CountAsync(s => s.AccountId == accountId);
+            if (existingSitesCount >= maxSite)
+                throw new InvalidOperationException("Account has reached the maximum number of sites allowed.");
+        }
 
         // Check if account is member of the publisher
         var isMember = await publisherService.IsMemberWithRole(site.PublisherId, accountId, PublisherMemberRole.Editor);
@@ -205,4 +215,4 @@ public class PublicationSiteService(
         var defaultPage = site.Pages.FirstOrDefault(p => p.Path == "/");
         return defaultPage;
     }
-}
+}
\ No newline at end of file