diff --git a/site/e2e/text.spec.ts b/site/e2e/text.spec.ts
new file mode 100644
index 0000000..a088544
--- /dev/null
+++ b/site/e2e/text.spec.ts
@@ -0,0 +1,123 @@
+import { expect, test, type Page } from "@playwright/test";
+import { TEXT, type Key, type Lang } from "../src/text.ts";
+
+const REPO = "https://github.com/ZacharyZhang-NY/ElyOffice";
+const APPS = ["ElyDoc", "ElyTable", "ElyShow", "ElyPDF", "ElyTree", "ElyMark"];
+const dmg = (app: string) => `${REPO}/releases/download/v0.1.0/${app}-0.1.0-arm64.dmg`;
+
+test.use({ reducedMotion: "reduce" });
+
+let errors: string[] = [];
+
+test.beforeEach(async ({ page }) => {
+  errors = [];
+  page.on("pageerror", (e) => errors.push(String(e)));
+});
+
+test.afterEach(() => expect(errors).toEqual([]));
+
+/** Each keyed element's key and text. */
+const keyed = (page: Page) =>
+  page.locator("[data-t]").evaluateAll((els) => els.map((e) => [(e as HTMLElement).dataset.t!, e.textContent!] as const));
+
+/** Asserts every keyed element reads in `lang`. */
+async function reads(page: Page, lang: Lang) {
+  await expect(page.locator("html")).toHaveAttribute("lang", lang === "zh" ? "zh-CN" : "en");
+  const found = await keyed(page);
+  expect(found.length).toBeGreaterThan(0);
+  for (const [key, text] of found) {
+    expect(text, key).not.toBe("");
+    expect(text, key).toBe(TEXT[lang][key as Key]);
+  }
+}
+
+test.describe("Chinese locale", () => {
+  test.use({ locale: "zh-CN" });
+
+  test("opens in Chinese", async ({ page }) => {
+    await page.goto("/");
+    await expect(page.locator("html")).toHaveAttribute("lang", "zh-CN");
+    await expect(page.locator("[data-t=tagline]")).toHaveText(TEXT.zh.tagline);
+    await reads(page, "zh");
+  });
+});
+
+test.describe("English locale", () => {
+  test.use({ locale: "en-US" });
+
+  test("opens in English", async ({ page }) => {
+    await page.goto("/");
+    await expect(page.locator("[data-t=tagline]")).toHaveText(TEXT.en.tagline);
+    await reads(page, "en");
+  });
+
+  test("the language button hides until intent", async ({ page }) => {
+    await page.goto("/");
+    const lang = page.locator(".lang");
+    await expect(lang).toHaveCSS("opacity", "0");
+    await lang.hover();
+    await expect(lang).toHaveCSS("opacity", "1");
+    await page.evaluate(() => scrollTo(0, document.body.scrollHeight));
+    await page.mouse.move(5, 500);
+    await expect(lang).toHaveCSS("opacity", "0");
+    await page.keyboard.press("Tab");
+    await expect(lang).toBeFocused();
+    await expect(lang).toHaveCSS("opacity", "1");
+  });
+
+  test("the language button switches every text and back", async ({ page }) => {
+    await page.goto("/");
+    const lang = page.locator(".lang");
+    await expect(lang).toHaveText("中文");
+    await lang.click();
+    await reads(page, "zh");
+    await expect(lang).toHaveText("English");
+    await lang.click();
+    await reads(page, "en");
+    await expect(lang).toHaveText("中文");
+  });
+
+  test("links point at the release and the repository", async ({ page }) => {
+    await page.goto("/");
+    await expect(page.locator(".region .get")).toHaveCount(APPS.length);
+    for (const app of APPS) {
+      await expect(page.locator(`#${app.toLowerCase()} .get`)).toHaveAttribute("href", dmg(app));
+    }
+    await expect(page.locator("#download ul a")).toHaveText([...APPS, TEXT.en.source]);
+    for (const [i, app] of APPS.entries()) {
+      await expect(page.locator("#download ul a").nth(i)).toHaveAttribute("href", dmg(app));
+    }
+    await expect(page.locator("[data-t=source]")).toHaveAttribute("href", REPO);
+    await expect(page.locator(".hero > a")).toHaveText("GitHub");
+    await expect(page.locator(".hero > a")).toHaveAttribute("href", REPO);
+  });
+
+  test("every external link answers @net", async ({ page, request }) => {
+    await page.goto("/");
+    const hrefs = await page.locator("a[href^='http']").evaluateAll((as) => as.map((a) => (a as HTMLAnchorElement).href));
+    const unique = [...new Set(hrefs)];
+    expect(unique.sort()).toEqual([REPO, ...APPS.map(dmg)].sort());
+    for (const url of unique) {
+      const res = await request.head(url);
+      expect(res.status(), url).toBeLessThan(400);
+    }
+  });
+
+  test("region downloads show on hover or focus", async ({ page }) => {
+    await page.goto("/");
+    for (const app of APPS) {
+      const region = page.locator(`#${app.toLowerCase()}`);
+      const get = region.locator(".get");
+      await region.scrollIntoViewIfNeeded();
+      await page.mouse.move(0, 0);
+      await expect(get).toHaveCSS("opacity", "0");
+      await region.locator("h2").hover();
+      await expect(get).toHaveCSS("opacity", "1");
+      await page.locator(".lang").hover();
+      await expect(get).toHaveCSS("opacity", "0");
+      await get.focus();
+      await expect(get).toHaveCSS("opacity", "1");
+      await get.blur();
+    }
+  });
+});
diff --git a/site/e2e/touch.spec.ts b/site/e2e/touch.spec.ts
index 8004b30..114284f 100644
--- a/site/e2e/touch.spec.ts
+++ b/site/e2e/touch.spec.ts
@@ -13,7 +13,7 @@ const top = (page: Page, name: string) =>
     return (document.querySelector(`.block[data-part="${n}"]`)!.getBoundingClientRect().top + scrollY) / scale;
   }, name);
 
-/** A point where the building is hit; `low` takes the lowest. */
+/** A point that hits the building; `low` picks the lowest. */
 const spot = (page: Page, name: string, low = false) =>
   page.evaluate(
     ([n, low]) => {
diff --git a/tests/scripts/comments.py b/tests/scripts/comments.py
index aec6ada..885da47 100755
--- a/tests/scripts/comments.py
+++ b/tests/scripts/comments.py
@@ -24,6 +24,7 @@ PATTERNS = [
     "site/src/**/*.ts",
     "site/src/**/*.css",
     "site/test/**/*.ts",
+    "site/e2e/**/*.ts",
     "site/video/**/*.py",
     "site/video/**/*.sh",
 ]