diff --git a/web/app/components/integrations/page.tsx b/web/app/components/integrations/page.tsx
index ce07fb0586e..25ca6923004 100644
--- a/web/app/components/integrations/page.tsx
+++ b/web/app/components/integrations/page.tsx
@@ -162,7 +162,7 @@ export default function IntegrationsPage({
       return
     }
 
-    window.open(getMarketplaceUrl(marketplaceUrlPath), '_blank', 'noopener,noreferrer')
+    window.open(getMarketplaceUrl(marketplaceUrlPath, undefined, { source: window.location.origin }), '_blank', 'noopener,noreferrer')
   }
   const handleSelectSection = (nextSection: IntegrationSection) => {
     if (onSectionChange) {
diff --git a/web/app/components/tools/integrations-setting-modal.tsx b/web/app/components/tools/integrations-setting-modal.tsx
index 7bd2cee75e3..d5cd7984153 100644
--- a/web/app/components/tools/integrations-setting-modal.tsx
+++ b/web/app/components/tools/integrations-setting-modal.tsx
@@ -25,7 +25,7 @@ export default function IntegrationsSettingModal({
   const { t } = useTranslation()
   const isAgentSource = source === 'agent'
   const handleSwitchToMarketplace = useCallback((path: string) => {
-    window.open(getMarketplaceUrl(path), '_blank', 'noopener,noreferrer')
+    window.open(getMarketplaceUrl(path, undefined, { source: window.location.origin }), '_blank', 'noopener,noreferrer')
   }, [])
 
   return (
diff --git a/web/utils/var.spec.ts b/web/utils/var.spec.ts
index 9120b7a7841..d5ff8b0687e 100644
--- a/web/utils/var.spec.ts
+++ b/web/utils/var.spec.ts
@@ -1,3 +1,4 @@
+import { describe, expect, it, vi } from 'vitest'
 import { InputVarType } from '@/app/components/workflow/types'
 import {
   checkKey,
@@ -207,6 +208,30 @@ describe('Variable Utilities', () => {
       expect(url).toContain('category=ai')
       expect(url).not.toContain('version=')
     })
+
+    it('should include provided source without double encoding', () => {
+      const url = getMarketplaceUrl('/plugins', { category: 'ai' }, { source: 'https://example.com/app' })
+      expect(url).toContain('source=https%3A%2F%2Fexample.com')
+      expect(url).not.toContain('source=https%253A%252F%252Fexample.com')
+    })
+
+    it('should not access window during server render', () => {
+      const originalWindow = window
+      vi.stubGlobal('window', undefined)
+
+      try {
+        const url = getMarketplaceUrl('/plugins', { category: 'ai' })
+        expect(url).toContain('category=ai')
+        expect(url).not.toContain('source=')
+      }
+      finally {
+        vi.stubGlobal('window', originalWindow)
+      }
+    })
+
+    it('should not append empty query string when no params are available', () => {
+      expect(getMarketplaceUrl('/plugins')).toBe('/plugins')
+    })
   })
 
   describe('replaceSpaceWithUnderscoreInVarNameInput', () => {
diff --git a/web/utils/var.ts b/web/utils/var.ts
index 8c06c7e8c90..b1fdd775790 100644
--- a/web/utils/var.ts
+++ b/web/utils/var.ts
@@ -132,8 +132,30 @@ export const getVars = (value: string) => {
 // example: /dify
 export const basePath = env.NEXT_PUBLIC_BASE_PATH
 
-export function getMarketplaceUrl(path: string, params?: Record<string, string | undefined>) {
-  const searchParams = new URLSearchParams({ source: encodeURIComponent(window.location.origin) })
+type MarketplaceUrlOptions = {
+  source?: string
+}
+
+const getUrlOrigin = (url?: string) => {
+  if (!url)
+    return undefined
+
+  try {
+    return new URL(url).origin
+  }
+  catch {
+    return undefined
+  }
+}
+
+const marketplaceSource = getUrlOrigin(env.NEXT_PUBLIC_WEB_PREFIX)
+
+export function getMarketplaceUrl(path: string, params?: Record<string, string | undefined>, options?: MarketplaceUrlOptions) {
+  const searchParams = new URLSearchParams()
+  const source = getUrlOrigin(options?.source) ?? marketplaceSource
+  if (source)
+    searchParams.set('source', source)
+
   if (params) {
     Object.keys(params).forEach((key) => {
       const value = params[key]
@@ -141,7 +163,9 @@ export function getMarketplaceUrl(path: string, params?: Record<string, string |
         searchParams.append(key, value)
     })
   }
-  return `${MARKETPLACE_URL_PREFIX}${path}?${searchParams.toString()}`
+
+  const queryString = searchParams.toString()
+  return queryString ? `${MARKETPLACE_URL_PREFIX}${path}?${queryString}` : `${MARKETPLACE_URL_PREFIX}${path}`
 }
 
 export const replaceSpaceWithUnderscoreInVarNameInput = (input: HTMLInputElement) => {