diff --git a/src/TerribleDev.Blog.Web/Extensions/ArrayExtensions.cs b/src/TerribleDev.Blog.Web/Extensions/ArrayExtensions.cs
new file mode 100644
index 0000000..2eae3f4
--- /dev/null
+++ b/src/TerribleDev.Blog.Web/Extensions/ArrayExtensions.cs
@@ -0,0 +1,12 @@
+using System;
+
+namespace TerribleDev.Blog.Web
+{
+    public static class ArrayExtensions
+    {
+        public static string ToHexString(this byte[] bytes)
+        {
+            return Convert.ToHexString(bytes);
+        }
+    }
+}
\ No newline at end of file
diff --git a/src/TerribleDev.Blog.Web/Factories/BlogFactory.cs b/src/TerribleDev.Blog.Web/Factories/BlogFactory.cs
index b7b7c33..935e322 100644
--- a/src/TerribleDev.Blog.Web/Factories/BlogFactory.cs
+++ b/src/TerribleDev.Blog.Web/Factories/BlogFactory.cs
@@ -15,6 +15,8 @@ using System.Collections.Concurrent;
 using Schema.NET;
 using System.Text.RegularExpressions;
 using TerribleDev.Blog.Web.Factories;
+using System.Text;
+using System.Security.Cryptography;
 
 namespace TerribleDev.Blog.Web
 {
@@ -123,7 +125,8 @@ namespace TerribleDev.Blog.Web
                 JsonLDString = ld.ToHtmlEscapedString().Replace("https://schema.org", "https://schema.org/true"),
                 JsonLDBreadcrumb = breadcrumb,
                 JsonLDBreadcrumbString = breadcrumb.ToHtmlEscapedString().Replace("https://schema.org", "https://schema.org/true"),
-                HasCode = hasCode
+                HasCode = hasCode,
+                MarkdownMD5 = MD5.Create().ComputeHash(Encoding.UTF8.GetBytes(markdownText)).ToHexString()
             };
             var thumbNailUrl = string.IsNullOrWhiteSpace(postSettings.thumbnailImage) ?
              postImages?.FirstOrDefault() ?? "https://www.gravatar.com/avatar/333e3cea32cd17ff2007d131df336061?s=640"  : 
@@ -176,7 +179,8 @@ namespace TerribleDev.Blog.Web
                         SummaryPlainShort = (postContentPlain.Length <= 147 ? postContentPlain : postContentPlain.Substring(0, 146)) + "...",
                         JsonLDBreadcrumb = breadcrumb,
                         JsonLDBreadcrumbString = breadcrumb.ToHtmlEscapedString().Replace("https://schema.org", "https://schema.org/true"),
-                        HasCode = hasCode
+                        HasCode = hasCode,
+                        MarkdownMD5 = MD5.Create().ComputeHash(Encoding.UTF8.GetBytes(markdownText)).ToHexString()
                     };
             return new LandingPage()
             {
diff --git a/src/TerribleDev.Blog.Web/Filters/ETagFilter.cs b/src/TerribleDev.Blog.Web/Filters/ETagFilter.cs
new file mode 100644
index 0000000..e9ecd84
--- /dev/null
+++ b/src/TerribleDev.Blog.Web/Filters/ETagFilter.cs
@@ -0,0 +1,34 @@
+using System;
+using System.Collections.Concurrent;
+using System.Security.Cryptography;
+using System.Text;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.AspNetCore.Mvc.Filters;
+
+namespace TerribleDev.Blog.Web.Filters
+{
+    public class StaticETag: ActionFilterAttribute
+    {
+        public static string staticEtag = MD5.Create().ComputeHash(Encoding.UTF8.GetBytes(DateTimeOffset.Now.ToUnixTimeMilliseconds().ToString())).ToHexString().Substring(0,8);
+        public static ConcurrentDictionary<string, string> cache = new ConcurrentDictionary<string, string>();
+        public override void OnActionExecuting(ActionExecutingContext context)
+        {
+            var etag = context.HttpContext.Request.Headers["If-None-Match"];
+            if(etag == staticEtag)
+            {
+                context.Result = new StatusCodeResult(304);
+            }
+            else
+            {
+                base.OnActionExecuting(context);
+            }
+        }
+        public override void OnActionExecuted(ActionExecutedContext context)
+        {
+            if(context.HttpContext.Response.StatusCode >= 200 && context.HttpContext.Response.StatusCode < 300 && context.HttpContext.Response.Headers.ETag.Count == 0)
+            {
+                context.HttpContext.Response.Headers.Add("ETag", staticEtag);
+            }
+        }
+    }
+}
\ No newline at end of file
diff --git a/src/TerribleDev.Blog.Web/Models/IPostContent.cs b/src/TerribleDev.Blog.Web/Models/IPostContent.cs
index 6d6ee73..bfb76cc 100644
--- a/src/TerribleDev.Blog.Web/Models/IPostContent.cs
+++ b/src/TerribleDev.Blog.Web/Models/IPostContent.cs
@@ -22,5 +22,6 @@ namespace TerribleDev.Blog.Web.Models
         public string JsonLDString { get; set; }
         BreadcrumbList JsonLDBreadcrumb { get; set; }
         string JsonLDBreadcrumbString { get; set; }
+        string MarkdownMD5 { get; set; }
     }
 }
diff --git a/src/TerribleDev.Blog.Web/Models/PostContent.cs b/src/TerribleDev.Blog.Web/Models/PostContent.cs
index 59b8eb9..ccbeb52 100644
--- a/src/TerribleDev.Blog.Web/Models/PostContent.cs
+++ b/src/TerribleDev.Blog.Web/Models/PostContent.cs
@@ -20,5 +20,6 @@ namespace TerribleDev.Blog.Web.Models
         public BreadcrumbList JsonLDBreadcrumb { get; set; }
         public string JsonLDBreadcrumbString { get; set; }
         public bool HasCode { get; set; }
+        public string MarkdownMD5 { get; set; }
     }
 }
\ No newline at end of file
diff --git a/src/TerribleDev.Blog.Web/Startup.cs b/src/TerribleDev.Blog.Web/Startup.cs
index 8189756..e70f464 100644
--- a/src/TerribleDev.Blog.Web/Startup.cs
+++ b/src/TerribleDev.Blog.Web/Startup.cs
@@ -14,6 +14,7 @@ using TerribleDev.Blog.Web.Factories;
 using Microsoft.Extensions.Hosting;
 using WebMarkupMin.AspNetCore6;
 using Microsoft.Extensions.Logging;
+using TerribleDev.Blog.Web.Filters;
 
 namespace TerribleDev.Blog.Web
 {
@@ -58,7 +59,9 @@ namespace TerribleDev.Blog.Web
                 }
                 return postCache;
             });
-            var controllerBuilder = services.AddControllersWithViews();
+            var controllerBuilder = services.AddControllersWithViews(a => {
+                a.Filters.Add(new StaticETag());
+            });
 #if DEBUG
             if (Env.IsDevelopment())
             {
diff --git a/src/TerribleDev.Blog.Web/appsettings.Development.json b/src/TerribleDev.Blog.Web/appsettings.Development.json
index e203e94..6cf0b42 100644
--- a/src/TerribleDev.Blog.Web/appsettings.Development.json
+++ b/src/TerribleDev.Blog.Web/appsettings.Development.json
@@ -1,9 +1,7 @@
 {
   "Logging": {
     "LogLevel": {
-      "Default": "Debug",
-      "System": "Information",
-      "Microsoft": "Information"
+      "Default": "Warning"
     }
   }
 }