In this video· click a step to jump to it
M
Passed ✓
Test recording
Mellingo — app walkthrough
62,952 ms · 21,149 pixels changed
We built this regression test for mellingo.vercel.app — it's yours to keep, free.
Take this test with you
This is a real Playwright test, recorded against mellingo.vercel.app. Claim it into your own workspace and re-run it on every deploy — free.
export async function test(page, baseUrl, screenshotPath, stepLogger) {
const shot = (n, slug) => screenshotPath.replace('.png', `-${n}-${slug}.png`);
await page.context().setExtraHTTPHeaders({ 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/132.0.0.0 Safari/537.36' });
for (const pattern of ['**/cdn-cgi/scripts/**/email-decode.min.js', '**/sentry-cdn.com/**', '**/browser.sentry-cdn.com/**', '**/cdn.segment.com/**', '**/connect.facebook.net/**']) {
await page.route(pattern, function (r) { r.abort().catch(function () {}); }).catch(function () {});
}
let n = 1;
// ─── Authed app dashboard (Clerk session replayed) ──────────────────────
stepLogger.log('Scenario 1: App dashboard (authed)');Checks run
21,149
Diff px
1m 03s
Duration
B
Accessible
WCAG 2.2 · 88
A
Fast
Web Vitals · 100
Notes from the demo run
AI-generatedMellingo turns language practice into a game that is instantly legible: the /app dashboard shows a streak, an XP bar, level tabs (Beginner, Intermediate, Advanced) and a colorful grid of lesson types, and each lesson drops straight into a clean multiple-choice question.
Highlights
- Zero-friction first lessonFrom sign-in the Vocabulary lesson opens a real question (Pen/Book/Chair/Table) with hearts and a 0/5 progress bar, so a new learner is practicing within one click.
- Format varietyVocabulary, Word Order, Translate, Listening, Roleplay and Reading are all one tap apart, which keeps practice from feeling repetitive.
Friction points
- Pro lessons mixed into the free gridAI Battle and Roleplay show a 'Try Free' badge inline with free lessons; labelling the paid tiers more distinctly could set expectations earlier.
4 visual changes
Before
After
Diff
Before
After
Diff
Before
After
Diff
Before
After
Diff
Share this run
Earned · Lastest awards
Proof your app is not AI slop
Badges stay live, ratchet upward, only downgrade on confirmed regression.
57,399 test runs recorded · 1,174 products tested with Lastest
This test was built for mellingo.vercel.app — claim it free
One click copies the test and baseline screenshots into your own Lastest workspace. Re-run on every deploy and catch regressions before your users do — free, no card required.