diff --git a/adapters/secondary/gateways/web/templates/componentNavbar.html b/adapters/secondary/gateways/web/templates/componentNavbar.html
index 41bcde2..5437d97 100644
--- a/adapters/secondary/gateways/web/templates/componentNavbar.html
+++ b/adapters/secondary/gateways/web/templates/componentNavbar.html
@@ -18,6 +18,9 @@
 				<li class="nav-item">
 					<a class="nav-link" href="/post">Posts</a>
 				</li>
+				<li class="nav-item">
+					<a class="nav-link" href="/integration">Integration</a>
+				</li>
 			</ul>
 			<ul class="navbar-nav">
 				<li class="nav-item">
diff --git a/adapters/secondary/gateways/web/templates/integration.html b/adapters/secondary/gateways/web/templates/integration.html
new file mode 100644
index 0000000..078f424
--- /dev/null
+++ b/adapters/secondary/gateways/web/templates/integration.html
@@ -0,0 +1,64 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <title>GoCMS | Home</title>
+    {{.Head}}
+</head>
+<body class="text-dark">
+{{.Navbar}}
+<div class="container mt-3 text-black-50">
+    <h1>Implementation</h1>
+    <p>How to use headless API</p>
+    <div class="mt-5">
+        <section>
+            <h2>Introduction</h2>
+            <p>This documentation explains how to integrate our headless CMS API to retrieve post data via the <code>/post</code>
+                route.</p>
+        </section>
+        <section>
+            <h2>/v1/post</h2>
+            <p>The <code>{{ .Host }}/v1/post</code> route returns a list of posts in JSON format. Each post has the
+                following
+                structure:</p>
+            <pre>
+<code>[
+  {
+    "id": 12,
+    "title": "This is a post!",
+    "body": "&lt;p&gt;?&lt;/p&gt;\r\n&lt;p&gt;&lt;img src=\"../../static/uploadedImages/649691a8-4f2e-48ca-9abe-27a60621d2e4.png\"
+                             alt=\"\" width=\"391\" height=\"465\"&gt;&lt;/p&gt;",
+    "created_at": "2024-06-13T15:30:55.3563238+02:00",
+    "updated_at": "2024-06-13T15:31:17.5508931+02:00"
+  }
+]</code>
+            </pre>
+        </section>
+        <section>
+            <h2>/v1/post/{id}</h2>
+            <p>The <code>{{ .Host }}/v1/post/{id}</code> route returns a single post in JSON format. The post has the
+                following
+                structure:</p>
+            <pre>
+<code>{
+  "id": 12,
+  "title": "ravioli sans le ra et le i",
+  "body": "<\p>?<\/p>\r\n<\p><\img src=\"../../static/uploadedImages/649691a8-4f2e-48ca-9abe-27a60621d2e4.png\" alt=\"\"
+                               width=\"391\" height=\"465\"><\/p>",
+  "images": [
+    {
+      "id": 17,
+      "path": "/static/uploadedImages/649691a8-4f2e-48ca-9abe-27a60621d2e4.png",
+      "post_id": 0,
+      "created_at": "2024-06-13T15:31:09.728359+02:00",
+      "updated_at": "2024-06-13T15:31:09.728359+02:00"
+    }
+  ],
+  "created_at": "2024-06-13T15:30:55.3563238+02:00",
+  "updated_at": "2024-06-13T15:31:17.5508931+02:00"
+}</code>
+            </pre>
+        </section>
+    </div>
+</div>
+</body>
+</html>
diff --git a/adapters/secondary/gateways/web/templates/login.html b/adapters/secondary/gateways/web/templates/login.html
index edab160..0e94560 100644
--- a/adapters/secondary/gateways/web/templates/login.html
+++ b/adapters/secondary/gateways/web/templates/login.html
@@ -58,6 +58,10 @@
         <div class="alert alert-success my-4" role="alert">
             {{ .Success }}
         </div>
+        {{ else if .Failure }}
+        <div class="alert alert-danger my-4" role="alert">
+            {{ .Failure }}
+        </div>
         {{ end }}
     </div>
 </div>
diff --git a/api/page.go b/api/page.go
index 4370f47..b6d0f96 100644
--- a/api/page.go
+++ b/api/page.go
@@ -147,6 +147,8 @@ func NewPageRouter() http.Handler {
 		r.Post("/post/create", PostPostCreatePage)
 
 		r.Post("/post/{id}/image/create", postImage)
+
+		r.Get("/integration", GetPageIntegration)
 	})
 
 	return r
diff --git a/api/pageIntegration.go b/api/pageIntegration.go
new file mode 100644
index 0000000..30216ec
--- /dev/null
+++ b/api/pageIntegration.go
@@ -0,0 +1,17 @@
+package api
+
+import (
+	"html/template"
+	"net/http"
+	"os"
+)
+
+func GetPageIntegration(w http.ResponseWriter, r *http.Request) {
+	navbarTmpl, _ := Container.GetPageUseCase.GetPage("componentNavbar", nil)
+	templ, _ := Container.GetPageUseCase.GetPage("integration", map[string]interface{}{
+		"Navbar": template.HTML(navbarTmpl),
+		"Head":   headTmpl,
+		"Host":   os.Getenv("HOST"),
+	})
+	_, _ = w.Write(templ)
+}
diff --git a/api/pageLogin.go b/api/pageLogin.go
index 0d4e862..045201a 100644
--- a/api/pageLogin.go
+++ b/api/pageLogin.go
@@ -32,11 +32,13 @@ func GetLoginPageHandler(loginPage *LoginPage) http.HandlerFunc {
 			return
 		}
 		success, _ := url.QueryUnescape(r.URL.Query().Get("success"))
+		failure, _ := url.QueryUnescape(r.URL.Query().Get("failure"))
 		bs, _ := Container.GetPageUseCase.GetPage("login", map[string]interface{}{
 			"PageError": loginPage.PageError,
 			"Username":  loginPage.Username,
 			"Head":      headTmpl,
 			"Success":   success,
+			"Failure":   failure,
 		})
 		_, _ = w.Write(bs)
 	}
diff --git a/api/pageRegister.go b/api/pageRegister.go
index c063c2c..d1d4522 100644
--- a/api/pageRegister.go
+++ b/api/pageRegister.go
@@ -30,6 +30,9 @@ var EmptyRegisterPage = &RegisterPage{
 
 func GetRegisterPageHandler(registerPage *RegisterPage) http.HandlerFunc {
 	return func(w http.ResponseWriter, r *http.Request) {
+		if !IsLoggedIn(r) && SomeUsersVerified() {
+			http.Redirect(w, r, "/login?failure=There is already a verified account, please login.", http.StatusSeeOther)
+		}
 		if (IsLoggedIn(r) && IsVerified(r)) || SomeUsersVerified() {
 			http.Redirect(w, r, "/home", http.StatusSeeOther)
 			return
