diff --git a/src/App.css b/src/App.css
index 289fb65..d7cde99 100644
--- a/src/App.css
+++ b/src/App.css
@@ -384,7 +384,7 @@ h3 {
   }
 
   .plugin-sidebar {
-    order: -1;
+    order: 1;
     width: 100%;
     margin: 0;
   }
diff --git a/src/App.tsx b/src/App.tsx
index cb628ab..7a2ea6c 100644
--- a/src/App.tsx
+++ b/src/App.tsx
@@ -126,7 +126,7 @@ const App = () => (
         {/* All routes share MainLayout (navbar + footer) */}
         <Route path="/" element={<MainLayout />}>
           <Route index element={<Home />} />
-          <Route path="plugin/:id" element={<PluginDetail />} />
+          <Route path="plugin/:id-:slug" element={<PluginDetail />} />
           <Route path="profile/:username" element={<AuthorProfilePage />} />
           <Route path="search" element={<SearchResultsPage />} />
           <Route path="terms" element={<TermsOfServicePage />} />
diff --git a/src/components/PluginCard.tsx b/src/components/PluginCard.tsx
index 90537de..bf0c668 100644
--- a/src/components/PluginCard.tsx
+++ b/src/components/PluginCard.tsx
@@ -1,6 +1,7 @@
 import { useState, useRef, useMemo } from 'react';
 import { Link } from 'react-router-dom';
 import { useTranslation } from 'react-i18next';
+import { getPluginUrl } from '../utils/url';
 
 const getAccentColor = (name: string) => {
     const colors = [
@@ -81,7 +82,7 @@ const PluginCard = ({ plugin }: { plugin: any }) => {
     };
 
     return (
-        <Link to={`/plugin/${plugin.id}`} className="plugin-card-link" onMouseEnter={startHover} onMouseLeave={stopHover}>
+        <Link to={getPluginUrl(plugin)} className="plugin-card-link" onMouseEnter={startHover} onMouseLeave={stopHover}>
             <div className="plugin-card-v2">
                 <div className="pcv2-preview">
                     {slideshowImages.length > 0 ? (
diff --git a/src/pages/AuthorProfilePage.tsx b/src/pages/AuthorProfilePage.tsx
index 5bd0781..0220d29 100644
--- a/src/pages/AuthorProfilePage.tsx
+++ b/src/pages/AuthorProfilePage.tsx
@@ -3,6 +3,7 @@ import { useParams, Link } from 'react-router-dom';
 import api from '../api';
 import { useTranslation } from 'react-i18next';
 import SEO from '../components/SEO';
+import { getPluginUrl } from '../utils/url';
 
 const AuthorProfilePage = () => {
   const { username } = useParams();
@@ -138,7 +139,7 @@ const AuthorProfilePage = () => {
           const imageUrl = plugin.preview_path;
 
           return (
-            <Link to={`/plugin/${plugin.id}`} key={plugin.id} className="plugin-card-link">
+            <Link to={getPluginUrl(plugin)} key={plugin.id} className="plugin-card-link">
               <div className="plugin-card-v2">
                 <div className="pcv2-preview">
                   {imageUrl ? (
diff --git a/src/pages/Home.tsx b/src/pages/Home.tsx
index bf575dd..3694a9e 100644
--- a/src/pages/Home.tsx
+++ b/src/pages/Home.tsx
@@ -5,6 +5,8 @@ import api from '../api';
 import SEO from '../components/SEO';
 import PluginCard from '../components/PluginCard';
 
+import { getPluginUrl } from '../utils/url';
+
 // Global cache to persist data across component unmounts (navigation)
 let homeCache: {
     popular: any[];
@@ -120,7 +122,7 @@ const Home = () => {
             {activeFeatured && (
                 <section className="featured-showcase-container">
                     <div className="featured-showcase-main">
-                        <Link to={`/plugin/${activeFeatured.id}`} className="featured-showcase-link">
+                        <Link to={getPluginUrl(activeFeatured)} className="featured-showcase-link">
                             {/* Main visual display */}
                             <div className="featured-main-visual">
                                 {activeImage ? (
diff --git a/src/pages/PluginDetail.tsx b/src/pages/PluginDetail.tsx
index 3d2ebd4..71a8247 100644
--- a/src/pages/PluginDetail.tsx
+++ b/src/pages/PluginDetail.tsx
@@ -135,7 +135,8 @@ const formatDate = (dateStr: string) => {
 };
 
 const PluginDetail = () => {
-  const { id } = useParams();
+  const { id: rawId, slug } = useParams();
+  const id = rawId ? rawId.split('-')[0] : rawId;
   const { user } = useAuth();
   const navigate = useNavigate();
   const location = useLocation();
@@ -233,6 +234,15 @@ const PluginDetail = () => {
       } else if (res.data.screenshots?.length > 0) {
         setMainScreenshot(res.data.screenshots[0].path);
       }
+
+      // Canonical URL check & replace
+      if (res.data.name) {
+        const expectedSlug = res.data.name.toLowerCase().trim().replace(/[\s_\.\-]+/g, '-').replace(/[^\w\-]+/g, '').replace(/\-\-+/g, '-').replace(/^-+/, '').replace(/-+$/, '');
+        const targetPath = expectedSlug ? `/plugin/${res.data.id}-${expectedSlug}` : `/plugin/${res.data.id}`;
+        if (location.pathname !== targetPath || slug !== expectedSlug) {
+          window.history.replaceState({}, '', targetPath + location.search);
+        }
+      }
     });
   };
 
@@ -485,33 +495,71 @@ const PluginDetail = () => {
   return `Download ${sizeStr}`;
   })();
 
+  const cleanDesc = currentDescription.replace(/[#*`_\[\]]/g, '').slice(0, 160).trim();
+
   const productSchema = {
-    "@context": "https://schema.org/",
-    "@type": "SoftwareApplication",
-    "name": plugin.name,
-    "operatingSystem": "Minecraft",
-    "applicationCategory": "GameApplication",
-    "offers": {
-      "@type": "Offer",
-      "price": plugin.type === 'paid' ? (plugin.price_cents / 100).toFixed(2) : "0.00",
-      "priceCurrency": "EUR"
-    },
-    "aggregateRating": stats ? {
-      "@type": "AggregateRating",
-      "ratingValue": stats.avg,
-      "reviewCount": stats.total
-    } : undefined,
-    "author": {
-      "@type": "Person",
-      "name": plugin.dev_name
-    }
+    "@context": "https://schema.org",
+    "@graph": [
+      {
+        "@type": "SoftwareApplication",
+        "name": plugin.name,
+        "description": cleanDesc,
+        "operatingSystem": "Minecraft",
+        "applicationCategory": "GameApplication",
+        "softwareVersion": plugin.version || "1.0.0",
+        "fileSize": plugin.file_size ? `${plugin.file_size} B` : undefined,
+        "image": plugin.preview_path || "https://market.pumpkinmc.org/icon.png",
+        "offers": {
+          "@type": "Offer",
+          "price": plugin.type === 'paid' ? (plugin.price_cents / 100).toFixed(2) : "0.00",
+          "priceCurrency": "EUR",
+          "availability": "https://schema.org/InStock"
+        },
+        "aggregateRating": stats ? {
+          "@type": "AggregateRating",
+          "ratingValue": stats.avg,
+          "ratingCount": stats.total,
+          "bestRating": "5",
+          "worstRating": "1"
+        } : undefined,
+        "author": {
+          "@type": "Person",
+          "name": plugin.dev_name,
+          "url": `https://market.pumpkinmc.org/profile/${plugin.dev_name}`
+        }
+      },
+      {
+        "@type": "BreadcrumbList",
+        "itemListElement": [
+          {
+            "@type": "ListItem",
+            "position": 1,
+            "name": "Home",
+            "item": "https://market.pumpkinmc.org"
+          },
+          {
+            "@type": "ListItem",
+            "position": 2,
+            "name": plugin.category || "Plugins",
+            "item": `https://market.pumpkinmc.org/search?category=${encodeURIComponent(plugin.category || '')}`
+          },
+          {
+            "@type": "ListItem",
+            "position": 3,
+            "name": plugin.name,
+            "item": `https://market.pumpkinmc.org/plugin/${plugin.id}`
+          }
+        ]
+      }
+    ]
   };
 
   return (
     <div className="container">
     <SEO
     title={plugin.name}
-    description={currentDescription.substring(0, 160)}
+    description={cleanDesc || `Download ${plugin.name} by ${plugin.dev_name} on Pumpkin Market.`}
+    keywords={`${plugin.name}, minecraft plugin, ${plugin.category || ''}, ${plugin.keywords || ''}`}
     ogType="product"
     ogImage={plugin.preview_path || "/icon.png"}
     />
diff --git a/src/pages/ProfilePage.tsx b/src/pages/ProfilePage.tsx
index fec844a..4b5ae4b 100644
--- a/src/pages/ProfilePage.tsx
+++ b/src/pages/ProfilePage.tsx
@@ -5,6 +5,7 @@ import api from '../api';
 import { useAuth } from '../App';
 import { getCodeList } from 'country-list';
 import DeveloperOnboardingModal from '../components/DeveloperOnboardingModal';
+import { getPluginUrl } from '../utils/url';
 import {
   User, Mail, Globe, Lock, Shield, CreditCard,
   BookOpen, AlertTriangle, LogOut, CheckCircle,
@@ -854,7 +855,7 @@ const ProfilePage = () => {
                   {library.map((entry, idx) => (
                     <Link
                       key={entry.plugin_id}
-                      to={`/plugin/${entry.plugin_id}`}
+                      to={getPluginUrl({ id: entry.plugin_id, name: entry.name })}
                       className="library-card"
                       style={{ animationDelay: `${idx * 0.05}s` }}
                     >
diff --git a/src/pages/dashboard/DashboardPlugins.tsx b/src/pages/dashboard/DashboardPlugins.tsx
index a51080b..193c714 100644
--- a/src/pages/dashboard/DashboardPlugins.tsx
+++ b/src/pages/dashboard/DashboardPlugins.tsx
@@ -4,6 +4,7 @@ import { useNavigate } from 'react-router-dom';
 import { Settings, Plus, ExternalLink, Sparkles } from 'lucide-react';
 import { useAuth } from '../../App';
 import DeveloperOnboardingModal from '../../components/DeveloperOnboardingModal';
+import { getPluginUrl } from '../../utils/url';
 
 // --- Main Component ---
 const DashboardPlugins = () => {
@@ -121,7 +122,7 @@ const DashboardPlugins = () => {
                                         {/* View on Marketplace */}
                                         <button 
                                             className="btn btn-icon-only" 
-                                            onClick={() => navigate(`/plugin/${p.id}`)}
+                                            onClick={() => navigate(getPluginUrl(p))}
                                             title="View in Store"
                                         >
                                             <ExternalLink size={16} />
diff --git a/src/utils/url.ts b/src/utils/url.ts
new file mode 100644
index 0000000..e95ae4f
--- /dev/null
+++ b/src/utils/url.ts
@@ -0,0 +1,17 @@
+export const slugify = (text: string): string => {
+  if (!text) return '';
+  return text
+    .toString()
+    .toLowerCase()
+    .trim()
+    .replace(/[\s_\.\-]+/g, '-')     // Replace spaces, underscores, dots, and hyphens with a single -
+    .replace(/[^\w\-]+/g, '')        // Remove all non-word chars except hyphens
+    .replace(/\-\-+/g, '-')          // Replace multiple hyphens with single hyphen
+    .replace(/^-+/, '')              // Trim hyphens from start
+    .replace(/-+$/, '');             // Trim hyphens from end
+};
+
+export const getPluginUrl = (plugin: { id: number | string; name?: string }): string => {
+  const slug = plugin.name ? slugify(plugin.name) : '';
+  return slug ? `/plugin/${plugin.id}-${slug}` : `/plugin/${plugin.id}`;
+};