diff --git a/webui/src/web-components/demo/mock-git-data-service.ts b/webui/src/web-components/demo/mock-git-data-service.ts
index 92fae9e..b643e50 100644
--- a/webui/src/web-components/demo/mock-git-data-service.ts
+++ b/webui/src/web-components/demo/mock-git-data-service.ts
@@ -600,10 +600,16 @@
               is_github: true,
             },
             {
-              name: "upstream",
-              url: "https://github.com/anotheruser/bold.git",
-              display_name: "anotheruser/bold",
-              is_github: true,
+              name: "gitlab",
+              url: "https://gitlab.com/testuser/bold.git",
+              display_name: "gitlab.com/testuser/bold",
+              is_github: false,
+            },
+            {
+              name: "selfhosted",
+              url: "https://git.company.com/team/bold.git",
+              display_name: "git.company.com/team/bold",
+              is_github: false,
             },
           ],
         }),
diff --git a/webui/src/web-components/sketch-push-button.test.ts b/webui/src/web-components/sketch-push-button.test.ts
new file mode 100644
index 0000000..eeb475e
--- /dev/null
+++ b/webui/src/web-components/sketch-push-button.test.ts
@@ -0,0 +1,79 @@
+/* eslint-disable @typescript-eslint/no-explicit-any */
+import { test, expect } from "@sand4rt/experimental-ct-web";
+import { SketchPushButton } from "./sketch-push-button";
+
+test("does not show GitHub link for non-GitHub remotes", async ({ mount }) => {
+  const component = await mount(SketchPushButton, {});
+
+  // Test GitHub remote (should return URL)
+  const githubURL = await component.evaluate((el: SketchPushButton) => {
+    const githubRemote = {
+      name: "origin",
+      url: "https://github.com/user/repo.git",
+      display_name: "user/repo",
+      is_github: true,
+    };
+    (el as any)._remotes = [githubRemote];
+    (el as any)._selectedRemote = "origin";
+    (el as any)._branch = "test-branch";
+    return (el as any)._computeBranchURL();
+  });
+  expect(githubURL).toBe("https://github.com/user/repo/tree/test-branch");
+
+  // Test GitLab remote (should return empty string)
+  const gitlabURL = await component.evaluate((el: SketchPushButton) => {
+    const gitlabRemote = {
+      name: "gitlab",
+      url: "https://gitlab.com/user/repo.git",
+      display_name: "gitlab.com/user/repo",
+      is_github: false,
+    };
+    (el as any)._remotes = [gitlabRemote];
+    (el as any)._selectedRemote = "gitlab";
+    (el as any)._branch = "test-branch";
+    return (el as any)._computeBranchURL();
+  });
+  expect(gitlabURL).toBe("");
+
+  // Test self-hosted remote (should return empty string)
+  const selfHostedURL = await component.evaluate((el: SketchPushButton) => {
+    const selfHostedRemote = {
+      name: "self",
+      url: "https://git.company.com/user/repo.git",
+      display_name: "git.company.com/user/repo",
+      is_github: false,
+    };
+    (el as any)._remotes = [selfHostedRemote];
+    (el as any)._selectedRemote = "self";
+    (el as any)._branch = "test-branch";
+    return (el as any)._computeBranchURL();
+  });
+  expect(selfHostedURL).toBe("");
+});
+
+test("handles missing remote gracefully", async ({ mount }) => {
+  const component = await mount(SketchPushButton, {});
+
+  // Test with no remotes
+  const noRemotesURL = await component.evaluate((el: SketchPushButton) => {
+    (el as any)._remotes = [];
+    (el as any)._selectedRemote = "";
+    (el as any)._branch = "test-branch";
+    return (el as any)._computeBranchURL();
+  });
+  expect(noRemotesURL).toBe("");
+
+  // Test with selected remote that doesn't exist
+  const invalidRemoteURL = await component.evaluate((el: SketchPushButton) => {
+    (el as any)._remotes = [{
+      name: "origin",
+      url: "https://github.com/user/repo.git",
+      display_name: "user/repo",
+      is_github: true,
+    }];
+    (el as any)._selectedRemote = "nonexistent";
+    (el as any)._branch = "test-branch";
+    return (el as any)._computeBranchURL();
+  });
+  expect(invalidRemoteURL).toBe("");
+});
diff --git a/webui/src/web-components/sketch-push-button.ts b/webui/src/web-components/sketch-push-button.ts
index 3d0a4b0..c6e2ad7 100644
--- a/webui/src/web-components/sketch-push-button.ts
+++ b/webui/src/web-components/sketch-push-button.ts
@@ -187,7 +187,7 @@
 
   private _computeBranchURL(): string {
     const selectedRemote = this._getSelectedRemote();
-    if (!selectedRemote) {
+    if (!selectedRemote || !selectedRemote.is_github) {
       return "";
     }
     return `https://github.com/${selectedRemote?.display_name}/tree/${this._branch}`;