diff --git a/server/Models/Avatar.js b/server/Models/Avatar.js
index 93f8332..5c64856 100644
--- a/server/Models/Avatar.js
+++ b/server/Models/Avatar.js
@@ -1,12 +1,16 @@
-const mongoose = require('mongoose')
+const mongoose = require('mongoose');
 
 const AvatarSchema = new mongoose.Schema({
-    // user is a foreign key 
     user: {
         type: mongoose.Schema.Types.ObjectId,
         ref: 'user',
+        required: true, // Ensure this is required if each avatar must be linked to a user
     },
-    image: String
-})
+    imageUrl: {
+        type: String,
+        required: true,
+        match: [/^(https?:\/\/.*\.(?:png|jpg|jpeg|gif|svg))$/, 'Please enter a valid image URL']
+    }
+}, { timestamps: true });
 
-module.exports = mongoose.model("avatar", AvatarSchema)
\ No newline at end of file
+module.exports = mongoose.model("avatar", AvatarSchema);
\ No newline at end of file
diff --git a/server/Models/Contact.js b/server/Models/Contact.js
index bb9aef9..5ab3d5a 100644
--- a/server/Models/Contact.js
+++ b/server/Models/Contact.js
@@ -5,7 +5,9 @@ const contactFormSchema = new mongoose.Schema({
     name: {
         type: String,
         required: true,
-        trim: true
+        trim: true,
+        minlength: 2,
+        maxlength: 50
     },
     email: {
         type: String,
@@ -17,15 +19,21 @@ const contactFormSchema = new mongoose.Schema({
     msg: {
         type: String,
         required: true,
-        trim: true
+        trim: true,
+        minlength: 10,
+        maxlength: 500
     },
     createdAt: {
         type: Date,
         default: Date.now
+    },
+    ipAddress: {
+        type: String,
+        required: false
     }
 });
 
 // Create the model from the schema
 const ContactForm = mongoose.model('ContactForm', contactFormSchema);
 
-module.exports = ContactForm;
+module.exports = ContactForm;
\ No newline at end of file
diff --git a/server/Models/Newsletter.js b/server/Models/Newsletter.js
index 93556f6..d4ff500 100644
--- a/server/Models/Newsletter.js
+++ b/server/Models/Newsletter.js
@@ -1,7 +1,21 @@
 const mongoose = require("mongoose");
 
 const NewsletterSchema = new mongoose.Schema({
-  email: { type: String, required: true, unique: true },
+  email: { 
+      type: String, 
+      required: true, 
+      unique: true, 
+      match: [/\S+@\S+\.\S+/, 'Please enter a valid email address'] 
+  },
+  subscribedAt: { 
+      type: Date, 
+      default: Date.now 
+  },
+  status: { 
+      type: String, 
+      enum: ['Subscribed', 'Unsubscribed'], 
+      default: 'Subscribed' 
+  }
 });
 
 module.exports = mongoose.model("Newsletter", NewsletterSchema);
\ No newline at end of file
diff --git a/server/Models/Profile.js b/server/Models/Profile.js
index 26f61b9..6e273a2 100644
--- a/server/Models/Profile.js
+++ b/server/Models/Profile.js
@@ -3,44 +3,54 @@ const { Schema } = mongoose;
 
 const ProfileSchema = new Schema(
   {
-    // user is a foreign key
     user: {
       type: mongoose.Schema.Types.ObjectId,
       ref: "user",
       required: true,
     },
-    image: {
-      image: String,
+    imageUrl: {
+      type: String,
+      trim: true,
     },
     name: {
       type: String,
       required: true,
+      trim: true,
     },
     email: {
       type: String,
-
       unique: true,
+      required: true,
+      match: [/\S+@\S+\.\S+/, "Please enter a valid email address"],
     },
     address: {
       type: String,
+      trim: true,
     },
     college: {
       type: String,
+      trim: true,
     },
     phone: {
-      type: Number,
+      type: String,
+      trim: true,
+      match: [/^\+?[0-9]{10,15}$/, "Enter a valid phone number"],
     },
     github: {
       type: String,
+      match: [/^https:\/\/github.com\/.+/, "Enter a valid GitHub URL"],
     },
     linkedin: {
       type: String,
+      match: [/^https:\/\/linkedin.com\/in\/.+/, "Enter a valid LinkedIn URL"],
     },
     password: {
       type: String,
+      required: true,
+      minlength: 8,
     },
   },
   { timestamps: true }
 );
 
-module.exports = mongoose.model("profile", ProfileSchema);
+module.exports = mongoose.model("profile", ProfileSchema);
\ No newline at end of file
diff --git a/server/Models/Project.js b/server/Models/Project.js
index 3081353..517d55f 100644
--- a/server/Models/Project.js
+++ b/server/Models/Project.js
@@ -2,13 +2,12 @@ const mongoose = require("mongoose");
 const { Schema } = mongoose;
 
 const ProjectSchema = new Schema({
-    // user is a foreign key 
     user: {
         type: mongoose.Schema.Types.ObjectId,
         ref: 'user',
     },
-    image: {
-        image: String,
+    imageUrl: {
+        type: String,
     },
     title: {
         type: String,
@@ -17,17 +16,26 @@ const ProjectSchema = new Schema({
     },
     description: {
         type: String,
+        maxlength: 500, // Optional limit
     },
     gitHubLink: {
         type: String,
+        match: [/^https:\/\/github.com\/.+/, 'Enter a valid GitHub URL'],
     },
     youTubeLink: {
         type: String,
+        match: [/^https:\/\/(www\.)?youtube.com\/watch\?v=.+/, 'Enter a valid YouTube video URL'],
     },
     date: {
         type: Date,
-        default: Date.now
+        default: Date.now,
+        required: true,
+    },
+    status: {
+        type: String,
+        enum: ['In Progress', 'Completed', 'On Hold'],
+        default: 'In Progress',
     }
 });
 
-module.exports = mongoose.model('projects', ProjectSchema);
\ No newline at end of file
+module.exports = mongoose.model('projects', ProjectSchema);
diff --git a/server/Models/User.js b/server/Models/User.js
index fc5d478..32f7886 100644
--- a/server/Models/User.js
+++ b/server/Models/User.js
@@ -1,36 +1,46 @@
 const mongoose = require("mongoose");
 const { Schema } = mongoose;
 
-const UserSchema = new Schema({
-  image: {
-    type: String,
-    required: true
+const UserSchema = new Schema(
+  {
+    imageUrl: {
+      type: String,
+      required: true
+    },
+    name: {
+      type: String,
+      required: true
+    },
+    email: {
+      type: String,
+      required: true,
+      unique: true,
+      match: [/\S+@\S+\.\S+/, 'Please enter a valid email address'],
+    },
+    password: {
+      type: String,
+      required: true,
+      minlength: 8 // Minimum length for password
+    },
+    date: {
+      type: Date,
+      default: Date.now
+    },
+    verificationToken: {
+      type: String,
+    },
+    verified: {
+      type: Boolean,
+      default: false
+    },
+    role: {
+      type: String,
+      enum: ['user', 'admin'],
+      default: 'user',
+    }
   },
-  name: {
-    type: String,
-    required: true
-  },
-  email: {
-    type: String,
-    required: true,
-    unique: true
-  },
-  password: {
-    type: String,
-    required: true
-  },
-  date: {
-    type: Date,
-    default: Date.now
-  },
-  verificationToken: {
-    type: String,
-  },
-  verified: {
-    type: Boolean,
-    default: false
-  }
-});
+  { timestamps: true }
+);
 
 const User = mongoose.model('user', UserSchema);
 module.exports = User;
diff --git a/server/Models/blog.js b/server/Models/blog.js
index 4b57571..6256405 100644
--- a/server/Models/blog.js
+++ b/server/Models/blog.js
@@ -4,7 +4,8 @@ const blogSchema = new mongoose.Schema({
     title: {
         type: String,
         required: true,
-        trim: true
+        trim: true,
+        minlength: 5
     },
     author: {
         type: String,
@@ -17,17 +18,26 @@ const blogSchema = new mongoose.Schema({
     },
     content: {
         type: String,
-        required: true
-    },
-    id: {
-        type: String,
-        unique: true // Optional: Ensure this is unique
+        required: true,
+        minlength: 50
     },
     category: {
         type: String,
         required: true,
-        trim: true
-    }
+        trim: true,
+        enum: ["Tech", "Health", "Finance"] // Example categories
+    },
+    tags: {
+        type: [String],
+        default: []
+    },
+    comments: [
+        {
+            user: { type: String, required: true },
+            comment: { type: String, required: true },
+            date: { type: Date, default: Date.now }
+        }
+    ]
 });
 
 const Blog = mongoose.model('Blog', blogSchema);
diff --git a/server/Models/feedback.js b/server/Models/feedback.js
index 5d66a41..77f9843 100644
--- a/server/Models/feedback.js
+++ b/server/Models/feedback.js
@@ -11,7 +11,7 @@ const feedbackSchema = new mongoose.Schema({
         type: String,
         required: true,
         trim: true,
-        match: [/\S+@\S+\.\S+/, 'Email is invalid'], // Basic email validation
+        match: [/\S+@\S+\.\S+/, 'Email is invalid'],
     },
     subject: {
         type: String,
@@ -19,26 +19,30 @@ const feedbackSchema = new mongoose.Schema({
         trim: true,
     },
     dateOfVisit: {
-        type: String,
+        type: Date,
         required: true,
     },
     deviceUsed: {
         type: String,
         required: true,
+        enum: ['Desktop', 'Mobile', 'Tablet'],
     },
     priorityLevel: {
         type: String,
         required: true,
+        enum: ['Low', 'Medium', 'High'],
     },
     suggestions: {
         type: String,
         trim: true,
         required: true,
+        maxlength: 500,
     },
     feedback: {
         type: String,
         trim: true,
         required: true,
+        maxlength: 1000,
     },
     rating: {
         type: Number,
@@ -48,11 +52,11 @@ const feedbackSchema = new mongoose.Schema({
     },
     createdAt: {
         type: Date,
-        default: Date.now, // Automatically set the created date
+        default: Date.now,
     }
 });
 
 // Create the model from the schema
 const Feedback = mongoose.model('Feedback', feedbackSchema);
 
-module.exports = Feedback;
+module.exports = Feedback;
\ No newline at end of file