diff --git a/apps/dashboard/public/images/google-search-console/step1_confirm_property.png b/apps/dashboard/public/images/google-search-console/step1_confirm_property.png
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diff --git a/apps/dashboard/public/images/google-search-console/step2_scope_selected.png b/apps/dashboard/public/images/google-search-console/step2_scope_selected.png
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diff --git a/apps/dashboard/public/images/google-search-console/step3_copy_access_token.png b/apps/dashboard/public/images/google-search-console/step3_copy_access_token.png
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diff --git a/packages/db/src/connection-guide.ts b/packages/db/src/connection-guide.ts
index 533f2a0f..2f6f2d2f 100644
--- a/packages/db/src/connection-guide.ts
+++ b/packages/db/src/connection-guide.ts
@@ -370,17 +370,17 @@ export const SOURCE_CONNECT_PROVIDER_GUIDES: SourceConnectProviderGuide[] = [
   {
     provider: "google_search_console",
     summary:
-      "Connect Google Search Console with an OAuth access token and optional default site URL.",
+      "Connect Google Search Console with Google OAuth or an OAuth access token and optional default site URL.",
     steps: [
-      "Create or obtain an OAuth 2.0 access token with the `https://www.googleapis.com/auth/webmasters.readonly` scope.",
-      "Copy the token into `credentials.accessToken`.",
-      "Optionally include `siteUrl` so source API selectors like `/searchAnalytics/query` expand to `/sites/<siteUrl>/searchAnalytics/query`.",
+      "Confirm the Search Console property is visible to the Google account that will authorize OneQuery.",
+      "Use the dashboard `Connect with Google` flow, or create an OAuth 2.0 access token with the `https://www.googleapis.com/auth/webmasters.readonly` scope for CLI/JSON connections.",
+      "For CLI/JSON connections, copy the token into `credentials.accessToken`; optionally include the exact Search Console property string in `credentials.siteUrl` so source API selectors like `/searchAnalytics/query` expand to `/sites/<siteUrl>/searchAnalytics/query`.",
     ],
     exampleInput: {
       sourceKey: "gsc_site",
       credentials: {
         accessToken: "ya29...",
-        siteUrl: "https://www.example.com/",
+        siteUrl: "sc-domain:example.com",
       },
     },
   },
diff --git a/packages/db/src/source-providers.ts b/packages/db/src/source-providers.ts
index 24e8d764..079c6f11 100644
--- a/packages/db/src/source-providers.ts
+++ b/packages/db/src/source-providers.ts
@@ -765,17 +765,17 @@ export const SOURCE_PROVIDER_REGISTRY = {
     publicCategory: "Marketing",
     guide: {
       summary:
-        "Connect Google Search Console with an OAuth access token and optional default site URL.",
+        "Connect Google Search Console with Google OAuth or an OAuth access token and optional default site URL.",
       steps: [
-        "Create or obtain an OAuth 2.0 access token with the `https://www.googleapis.com/auth/webmasters.readonly` scope.",
-        "Copy the token into `credentials.accessToken`.",
-        "Optionally include `siteUrl` so selector `/searchAnalytics/query` expands to `/sites/<siteUrl>/searchAnalytics/query`.",
+        "Confirm the Search Console property is visible to the Google account that will authorize OneQuery.",
+        "Use the dashboard `Connect with Google` flow, or create an OAuth 2.0 access token with the `https://www.googleapis.com/auth/webmasters.readonly` scope for CLI/JSON connections.",
+        "For CLI/JSON connections, copy the token into `credentials.accessToken`; optionally include the exact Search Console property string in `credentials.siteUrl` so selector `/searchAnalytics/query` expands to `/sites/<siteUrl>/searchAnalytics/query`.",
       ],
       exampleInput: {
         sourceKey: "gsc_site",
         credentials: {
           accessToken: "ya29...",
-          siteUrl: "https://www.example.com/",
+          siteUrl: "sc-domain:example.com",
         },
       },
     },
diff --git a/packages/ui/src/data-sources/connection-guides/google-search-console.ts b/packages/ui/src/data-sources/connection-guides/google-search-console.ts
new file mode 100644
index 00000000..5199e125
--- /dev/null
+++ b/packages/ui/src/data-sources/connection-guides/google-search-console.ts
@@ -0,0 +1,123 @@
+import type { GuideContent } from "./types";
+
+export const googleSearchConsoleGuideContent = {
+  providerLabel: "Google Search Console",
+  ko: {
+    title: "Google Search Console OAuth 연결 가이드",
+    description:
+      "OneQuery의 Google Search Console 연결은 Search Console property 접근 권한이 있는 Google 계정으로 OAuth 승인을 진행합니다. CLI나 JSON 연결에서는 access token과 optional 기본 site URL을 직접 입력할 수도 있습니다.",
+    steps: [
+      {
+        title: "Search Console property 접근 권한 확인",
+        paragraphs: [
+          "https://search.google.com/search-console 을 열고 OneQuery이 조회할 property가 보이는지 확인하세요.",
+          "Domain property는 `sc-domain:example.com` 형식이고, URL-prefix property는 `https://www.example.com/`처럼 전체 URL 형식입니다.",
+          "이 값은 OneQuery의 `credentials.siteUrl`에 넣을 수 있으며, `/searchAnalytics/query` 요청의 기본 site selector로 사용됩니다.",
+        ],
+        note: "스크린샷은 실제 계정, property, 성능 수치를 숨긴 상태입니다. 연결할 때는 Search Console에 표시되는 property string을 그대로 사용하세요.",
+        imageSrc: "/images/google-search-console/step1_confirm_property.png",
+        imageAlt:
+          "Google Search Console overview with account, property, and metrics hidden",
+      },
+      {
+        title: "Google OAuth 승인 진행",
+        paragraphs: [
+          "OneQuery dashboard에서는 Google Search Console 연결 화면의 `Connect with Google` 버튼을 눌러 OAuth 승인을 진행하세요.",
+          "수동 토큰 발급이나 CLI 연결을 검증할 때는 OAuth 2.0 Playground 또는 자체 Google OAuth client에서 `https://www.googleapis.com/auth/webmasters.readonly` scope를 선택하세요.",
+          "Playground를 사용할 때는 custom scope 입력칸에 scope URL을 붙여 넣고 `Authorize APIs`를 누릅니다.",
+          "Google 계정 선택, MFA, consent 화면은 브라우저에서 직접 확인하고 승인해야 합니다.",
+        ],
+        note: "OAuth Playground는 빠른 수동 연결 확인용입니다. 장기 운영 연결은 조직의 Google OAuth client와 토큰 갱신 정책을 사용하는 편이 안전합니다.",
+        imageSrc: "/images/google-search-console/step2_scope_selected.png",
+        imageAlt:
+          "OAuth 2.0 Playground with the Search Console readonly scope selected",
+        reverse: true,
+      },
+      {
+        title: "CLI 또는 JSON 연결용 access token 복사",
+        paragraphs: [
+          "Dashboard OAuth 연결은 승인 후 OneQuery이 토큰을 저장하므로 이 단계를 직접 수행하지 않아도 됩니다.",
+          "CLI 또는 JSON 연결을 사용할 때는 승인 후 authorization code를 token으로 교환하고 `Access token` 값을 복사하세요.",
+          "연결 JSON의 `credentials.accessToken`에 붙여 넣고, 기본 property를 고정하려면 `credentials.siteUrl`도 함께 넣으세요.",
+          "Search Console API의 `/sites` 조회만 테스트하려면 `siteUrl`을 비워 둘 수 있지만, `/searchAnalytics/query`를 짧은 selector로 쓰려면 `siteUrl`이 필요합니다.",
+        ],
+        code: `{
+  "name": "gsc_main",
+  "credentials": {
+    "type": "google_search_console",
+    "accessToken": "ya29...",
+    "siteUrl": "sc-domain:example.com"
+  }
+}`,
+        note: "Access token은 민감 정보입니다. 스크린샷, 채팅, 로그에 노출되었다면 해당 토큰을 폐기하고 새로 발급하세요.",
+        imageSrc: "/images/google-search-console/step3_copy_access_token.png",
+        imageAlt:
+          "OAuth 2.0 Playground token exchange panel with masked example token values",
+      },
+    ],
+    closingTitle: "연결 준비 완료!",
+    closingDescription:
+      "이제 dashboard OAuth 승인을 완료하거나, CLI 입력 JSON에 Search Console access token과 optional site URL을 넣으면 됩니다.",
+    closingNote:
+      "현재 OneQuery Source API는 `siteUrl`이 설정된 경우 `/searchAnalytics/query`를 `/sites/<siteUrl>/searchAnalytics/query`로 확장합니다. 다른 property를 조회할 때는 명시적인 `/sites/...` selector를 사용하세요.",
+  },
+  en: {
+    title: "Google Search Console OAuth Guide",
+    description:
+      "The OneQuery Google Search Console connection authorizes a Google account that can read the Search Console property. CLI and JSON connections can also provide an access token plus an optional default site URL directly.",
+    steps: [
+      {
+        title: "Confirm access to the Search Console property",
+        paragraphs: [
+          "Open https://search.google.com/search-console and confirm that the property OneQuery should query is visible.",
+          "Domain properties use the `sc-domain:example.com` format. URL-prefix properties use a full URL such as `https://www.example.com/`.",
+          "You can save that value as `credentials.siteUrl`; OneQuery uses it as the default site selector for `/searchAnalytics/query`.",
+        ],
+        note: "The screenshot hides the real account, property, and performance metrics. When connecting, copy the exact property string shown by Search Console.",
+        imageSrc: "/images/google-search-console/step1_confirm_property.png",
+        imageAlt:
+          "Google Search Console overview with account, property, and metrics hidden",
+      },
+      {
+        title: "Authorize with Google OAuth",
+        paragraphs: [
+          "In the OneQuery dashboard, click `Connect with Google` from the Google Search Console connection form to start OAuth.",
+          "For manual token generation or CLI connection checks, select the `https://www.googleapis.com/auth/webmasters.readonly` scope in OAuth 2.0 Playground or in your own Google OAuth client.",
+          "For Playground, paste the scope URL into the custom scope input and click `Authorize APIs`.",
+          "Handle Google account selection, MFA, and the consent screen directly in the browser.",
+        ],
+        note: "OAuth Playground is useful for a quick manual connection check. For a long-running production connection, prefer your organization's Google OAuth client and token refresh policy.",
+        imageSrc: "/images/google-search-console/step2_scope_selected.png",
+        imageAlt:
+          "OAuth 2.0 Playground with the Search Console readonly scope selected",
+        reverse: true,
+      },
+      {
+        title: "Copy the access token for CLI or JSON connections",
+        paragraphs: [
+          "Dashboard OAuth stores the token for you after consent, so you do not need to copy it manually.",
+          "For CLI or JSON connections, exchange the authorization code for tokens after consent and copy the `Access token` value.",
+          "Paste it into `credentials.accessToken` in the connection JSON. Include `credentials.siteUrl` when you want OneQuery to default queries to one property.",
+          "You can omit `siteUrl` for `/sites` discovery, but short `/searchAnalytics/query` selectors need a configured `siteUrl`.",
+        ],
+        code: `{
+  "name": "gsc_main",
+  "credentials": {
+    "type": "google_search_console",
+    "accessToken": "ya29...",
+    "siteUrl": "sc-domain:example.com"
+  }
+}`,
+        note: "Treat the access token as sensitive. If it appears in a screenshot, chat, or log, revoke it and issue a new token.",
+        imageSrc: "/images/google-search-console/step3_copy_access_token.png",
+        imageAlt:
+          "OAuth 2.0 Playground token exchange panel with masked example token values",
+      },
+    ],
+    closingTitle: "Ready to Connect",
+    closingDescription:
+      "Finish the dashboard OAuth flow, or paste the Search Console access token and optional site URL into a CLI JSON payload.",
+    closingNote:
+      "When `siteUrl` is configured, OneQuery Source API expands `/searchAnalytics/query` to `/sites/<siteUrl>/searchAnalytics/query`. Use explicit `/sites/...` selectors when querying a different property.",
+  },
+} satisfies GuideContent;
diff --git a/packages/ui/src/data-sources/connection-guides/index.ts b/packages/ui/src/data-sources/connection-guides/index.ts
index 7d4064e5..7187dded 100644
--- a/packages/ui/src/data-sources/connection-guides/index.ts
+++ b/packages/ui/src/data-sources/connection-guides/index.ts
@@ -5,6 +5,7 @@ import { cloudflareD1GuideContent } from "./cloudflare-d1";
 import { cloudflareWorkersObservabilityGuideContent } from "./cloudflare-workers-observability";
 import { gaGuideContent } from "./ga";
 import { githubGuideContent } from "./github";
+import { googleSearchConsoleGuideContent } from "./google-search-console";
 import { laminarGuideContent } from "./laminar";
 import { linkedInAdsGuideContent } from "./linkedin-ads";
 import { mixpanelGuideContent } from "./mixpanel";
@@ -40,6 +41,7 @@ export const GUIDE_CONTENT: Record<
   cloudflare_d1: cloudflareD1GuideContent,
   cloudflare_workers_observability: cloudflareWorkersObservabilityGuideContent,
   ga: gaGuideContent,
+  google_search_console: googleSearchConsoleGuideContent,
   github: githubGuideContent,
   laminar: laminarGuideContent,
   linkedin_ads: linkedInAdsGuideContent,
diff --git a/packages/ui/src/data-sources/connection-guides/types.ts b/packages/ui/src/data-sources/connection-guides/types.ts
index 6790d1a2..07d3d5b4 100644
--- a/packages/ui/src/data-sources/connection-guides/types.ts
+++ b/packages/ui/src/data-sources/connection-guides/types.ts
@@ -7,6 +7,7 @@ export type DataSourceConnectionGuideProvider =
   | "cloudflare_d1"
   | "cloudflare_workers_observability"
   | "ga"
+  | "google_search_console"
   | "github"
   | "laminar"
   | "linkedin_ads"