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Cross-browser testing

Cross-browser testing so Safari-only bugs never reach customers

Every critical journey runs across Chromium, Firefox and WebKit at desktop, tablet and phone sizes, on every change. Find the browser-specific bug before your customers do.

Most teams develop in Chrome. Many of their customers use Safari on iPhone. Date pickers, flexbox gaps, autofill, payment sheets and third-party scripts all behave differently across engines, and those differences are where browser-specific bugs hide.

QAShift runs the same journeys in every engine you support, so a fix that works in Chrome but breaks on Safari is caught in the pull request.

What our cross-browser testing covers

  • Engine coverage

    Chromium, Firefox and WebKit, which powers Safari on Mac and every browser on iOS.

  • Responsive breakpoints

    Desktop, tablet and phone widths for each journey.

  • Input differences

    Date pickers, autofill, file uploads and keyboard behaviour per browser.

  • Payment and auth sheets

    Browser-specific payment and sign-in flows behave correctly.

  • Visual parity

    Screenshots per engine catch layout differences.

  • Device grids when needed

    Tests are standard Playwright, so they can also run on any device cloud you already use.

What it catches before your customers do

  • The date picker does nothing on Safari
  • A flexbox layout collapses on Firefox
  • Autofill breaks validation on iOS
  • A third-party script blocks checkout in one browser only

Two ways to get it done

Run it yourself

Verity runs your generated tests across browser engines in CI with no extra configuration.

We run it for you

Your engineer agrees the browser and device matrix with you based on real traffic and keeps it current.

What you get

  • Multi-engine runs in CI
  • Per-browser failure evidence
  • Breakpoint coverage
  • A matrix based on your analytics on managed plans

Frequently asked questions

Do you test on real Safari?

Tests run on WebKit, the engine behind Safari, which catches the vast majority of Safari issues. Real-device runs are available on managed plans and through any device cloud you use.

Do I need BrowserStack or Sauce Labs?

Not to start. Multi-engine runs work in your CI. If you need a large real-device grid, QAShift tests run there unchanged.

Which browsers should we support?

On managed plans your engineer recommends a matrix from your analytics, so effort goes where your users are.

Does cross-browser testing cost extra?

No. Browser coverage is part of every plan.

Ship without fear.

Start testing free in minutes, or let a QAShift engineer deliver your first morning report within 5 days.