Web Applications Testing Services
Your app needs to work on Chrome, Firefox, Safari, and Edge, across phones, tablets, and 4K monitors, while loading in under 2 seconds, staying accessible to screen reader users, and holding up against OWASP security threats. Miss any one of those and you're shipping a broken product.
- 01Cross-browser (Chrome, FF, Safari, Edge)
- 02Responsive layouts across breakpoints
- 03PWA and offline functionality
- 04Form validation and user journeys
- 05Core Web Vitals performance
Web testing in 2026 is harder than you think: here's why
Safari renders some layouts differently from Chrome, so a page that looks right in one can break in the other. A form that fails on mobile keyboards kills your mobile conversions. An accessibility gap puts you on the wrong side of regulations. We catch all of it before it ships, not after.
We run Playwright and Cypress automation for solid regression coverage on every merge, then layer in manual exploratory testing for the UX edge cases that scripts never catch. You get both breadth and depth.
What We Test on Web Applications
Cross-Browser Testing
- βChrome, Firefox, Safari, Edge: latest 2 versions
- βLegacy browser coverage where needed
- βBrowser-specific CSS and JS quirks
- βExtension compatibility testing
Responsive & Mobile Web
- βAll major breakpoints: mobile, tablet, desktop
- βTouch interactions on mobile browsers
- βViewport meta and zoom behaviour
- βFont scaling and readability at all sizes
Performance Testing
- βCore Web Vitals: LCP, CLS, FID/INP
- βPage load speed across network conditions
- βAsset optimisation and CDN delivery
- βLazy loading and code splitting validation
Accessibility (a11y)
- βWCAG 2.1 AA compliance testing
- βScreen reader testing: NVDA, JAWS, VoiceOver
- βKeyboard navigation and focus management
- βColour contrast and text size validation
Security Testing
- βOWASP Top 10 for web applications
- βXSS, CSRF, and injection attack testing
- βAuthentication and session management
- βSensitive data exposure in frontend code
Functional & Regression
- βAll user journeys end-to-end
- βForm validation and error handling
- βState management across navigation
- βThird-party integration validation
How We Test This Platform
We map your risks first
Before writing a single test, we review your app, your user journeys, and figure out where the real risk is. That shapes the test matrix: browsers, devices, features.
We wire up automation in your pipeline
We set up Playwright or Cypress and plug it into your CI/CD. Every merge triggers a full regression run across all your target browsers, automatically.
We run manual exploratory sessions
Experienced testers dig into UX flows, edge cases, and accessibility areas that scripts can't replicate. This is where the subtle, expensive bugs hide.
We audit your performance numbers
Lighthouse and WebPageTest give us your Core Web Vitals and load waterfall. We find the specific bottlenecks hurting your users and your Google ranking.
We verify accessibility end-to-end
axe-core automated scans catch the easy stuff. We then do manual keyboard-only and screen reader walkthroughs to confirm WCAG 2.1 AA compliance.
We hand over a clear report
Defects classified by severity, with reproduction steps and screenshots. Release sign-off documentation so your team can ship with confidence.
Technology Stack for This Platform
Common Bugs We Catch on Web Applications
Common Questions
Have a specific question?
We're happy to discuss your platform, tech stack, and testing needs in a free 30-min discovery call, no commitment required.
Book a Free QA Strategy CallChrome, Firefox, Safari, and Edge, the latest 2 versions of each. If you need IE11 or older Safari coverage, we handle that through BrowserStack. We always start by asking which browsers your analytics show matter most for your users.