Recording of the visual regression run on themailx.com · mailX — full tools walk + 4 real deliverability checks on lastest.cloud (SPF, DKIM, DMARC, Blacklist).

In this video· click a step to jump to it

T
Passed ✓

Test recording

mailX — full tools walk + 4 real deliverability checks on lastest.cloud (SPF, DKIM, DMARC, Blacklist)

60,187 ms · 0 pixels changed · matches baseline

We built this regression test for themailx.com — it's yours to keep, free.

Take this test with you

This is a real Playwright test, recorded against themailx.com. Claim it into your own workspace and re-run it on every deploy — free.

export async function test(page, baseUrl, screenshotPath, stepLogger) {
  const SITE = 'https://themailx.com';
  const TARGET_DOMAIN = 'lastest.cloud';

  let __step = 0;
  const shot = async (label) => {
    __step++;
    const tag = String(__step).padStart(2, '0') + '-' + label;
    const p = screenshotPath.replace(/(\.png)?$/, '-' + tag + '.png');
    await page.screenshot({ path: p, fullPage: true });
    stepLogger.log('shot ' + __step + ': ' + label);
  };
+32 more lines — claim the test to get the full code.

Checks run

Run
✓
Visual
✓
Text
—
DOM
✓
Network
+91 −130
Console
✓
A11y
—
Perf
78 drift
URL
✓
Variables
—
Full report
Log in →
0
Diff px
1m 00s
Duration
—
Accessible
A
Fast
Web Vitals · 100

Notes from the demo run

AI-generated

mailX by mailwarm (YC S20) is a free, no-signup deliverability toolkit for humans and AI agents. The home page funnels straight into 7 free DNS checkers (SPF, DKIM, DMARC, BIMI, Blacklist, SMTP test, IMAP). The Lastest audit ran each against lastest.cloud — instant results, all rendered from real DNS. The intentional zero-auth design is the demo: every screen is a real interaction.

Highlights
  • No-signup design is the value
    Free SPF lookup / Instant results / No signup required directly under each tool input. You can run a real check before you decide if mailX is worth signing up for the paid layer.
  • MCP integration is a moat
    The /docs/mcp link telegraphs that AI agents are first-class users of the deliverability toolkit. Few competitors expose this.
Friction points
  • Tool-to-tool nav is footer-only
    Once you finish an SPF check there is no visible Try DKIM next CTA — you have to scroll back and grab the link. A short next-tool button (or a small grid in the result panel) would chain users through all four checks in 30 seconds.

Share this run

Earned · Lastest awards

Proof your app is not AI slop

LASTEST
starter
tests
all passing
regressions
0
Badges stay live, ratchet upward, only downgrade on confirmed regression.
57,604 test runs recorded · 1,174 products tested with Lastest

This test was built for themailx.com — 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.