What is web application testing?

Web application testing checks that a web app works correctly, looks right, loads fast and stays secure in every browser, device and network its users have. It covers functional, cross-browser, responsive, visual, performance, security, accessibility, API and integration testing, plus automated regression for future releases.

Which types of web applications do you test?

SaaS and B2B platforms, e-commerce stores, progressive web apps (PWAs), single-page apps built with React, Angular or Vue, portals and dashboards, CMS sites such as WordPress and Drupal, Web3 and decentralised apps, and enterprise web apps such as ERP and CRM systems.

Which testing types are included?

Twelve: functional, cross-browser, responsive and cross-device, UI and visual regression, performance and load, security against the OWASP Top 10, accessibility against WCAG 2.2, API and integration, test automation for regression, usability, localization, and payment and third-party integration testing. We pick the ones your app needs, so you don’t pay for testing it doesn’t.

Which browsers and devices do you test on?

Chrome, Safari, Edge and Firefox on Windows and macOS, Safari and Chrome on iPhone and iPad, and Chrome, Firefox and Samsung Internet on Android phones and tablets. We test the current version and the older versions you support, and add other browsers if your users need them.

Do you test WordPress, Webflow and Shopify websites?

Yes. We test themes, templates, content blocks, forms and checkout on WordPress, Webflow, Shopify, Drupal and other CMS platforms, and retest after plugin, app and core updates, which are a common cause of broken pages.

What should we check before launching a website?

Content and links, forms and confirmation emails, analytics and tracking, SEO tags, redirects and sitemaps, page speed, accessibility, mobile layouts, security headers and cookie consent. Our pre-launch checklist on this page covers each one.

Can you automate our web regression tests?

Yes. We build regression suites in Playwright, Selenium or Cypress, run them in your CI pipeline on every build, and keep them maintained. The scripts live in your repository and belong to you.

Do you test web application security?

Yes. We combine automated scanning with tools such as OWASP ZAP and Burp Suite with manual testing against the OWASP Top 10. Every finding is verified by hand, reported with steps and severity, and retested after you fix it.

Do you test accessibility against WCAG 2.2?

Yes. We test against WCAG 2.2 AA with tools such as axe DevTools, WAVE and Lighthouse, plus manual keyboard and screen reader checks. You get an accessibility audit listing each issue, the WCAG criterion it fails and how to fix it.

Can you test payments and third-party integrations?

Yes. We test payment gateways, sign-in providers, maps, chat, analytics and other services in their test or sandbox modes, including failed payments, refunds, timeouts and other error cases.

What do we receive from web application testing?

A test strategy and plan, an agreed coverage matrix, test cases, bug reports in your tracker such as Jira, daily or weekly status reports and a release sign-off. Depending on scope you also get automation scripts, a performance report, a security or VAPT report and an accessibility audit.

How long does web application testing take?

It depends on the size of the app and the coverage matrix. We confirm the timeline in your test plan before testing starts. If you need a fast cycle before a release, on-demand testing starts in 48 to 72 hours.

How much does web application testing cost?

Cost depends on scope and how you want to work: a fixed-price project, a dedicated QA team, on-demand cycles billed hourly or another engagement model. Every engagement can start with a free one-week proof of concept, and fixed packages start from $499.

Is our web app, code and data safe with you?

Yes. We sign your NDA before we get any access, and use test or masked data by default. Bug reports, test cases, scripts and reports belong to you.

Web Application Testing

We deliver flawless Web Application Testing, ensuring seamless user experiences across browsers, devices, and every user journey.

Web application testing checks that your web app works, looks right, loads fast and stays secure in every browser and device your users have. We test what users see, what they do, what your app connects to and what keeps it running, then report every bug with steps and evidence.

Get in touch Build your test plan

8 web app types
12 testing types
Real browsers and devices
Free one-week POC

What we test, layer by layer

01InterfaceWhat users see4 checks 02BehaviourWhat users do3 checks 03ConnectionsWhat the app talks to2 checks 04FoundationsWhat keeps it standing2 checks Across all layers: regression automation

[ Web application testing as a service ]

Our Web App Testing covers all your need

We provide Web Application Testing as a Service to ensure your applications perform smoothly across browsers, devices, and user environments. Unlike surface-level checks, our approach uses proven methodologies and real-world testing scenarios to validate every feature, business rule, and workflow ensuring your web app behaves exactly how your users expect.

Guarantee seamless user experiences across all browsers and devices.
Detecting and fixing bugs early, preventing costly issues at launch.
Align development efforts with user expectations for better adoption.
Deliver high-quality, scalable applications that maximize ROI.

Early Bug Detection

Identify defects at the earliest stages to reduce risks and costly fixes.

Better User Engagement

Validate every interaction for intuitive and satisfying user journeys.

Business Logic Validation

Guarantee workflows match real business needs.

Reliable Software Performance

Ensure smooth and consistent functionality under all user conditions.

Future-Proof Functionality

Confirm scalability and stability for long-term application success.

Compliance Assessment

Ensure alignment with technical specs, regulations, and industry standards.

[ Web app types ]

Every kind of web app breaks in its own way

A shop loses sales at checkout. A SaaS product leaks data between accounts. We start with the risks that belong to your type of web app, and test those first.

SaaS / B2B platforms

Subscription products that teams use every day.

We test first

Roles and permissions for each account
Billing, plans and upgrades
Each customer’s data kept separate

E-commerce stores

Online shops, where every broken step costs a sale.

We test first

Cart, checkout and payment
Search, filters and product pages
Speed during sales and peak traffic

Progressive Web Apps (PWA)

Web apps that install and work like native apps.

We test first

Offline mode and data sync
Install and home-screen behaviour
Push notifications and app updates

Single-page apps (React, Angular, Vue)

Apps that update screens without reloading the page.

We test first

Routing, back button and deep links
Data staying correct across screens
Loading states and API errors

Portals & dashboards

Customer, partner and admin portals full of data.

We test first

Charts and tables showing the right numbers
Filters, exports and reports
What each role can see and do

CMS sites (WordPress, Drupal)

Websites built and edited in a content management system.

We test first

Every template and content block
Plugin and core updates breaking pages
Forms, SEO tags and page speed

Web3 / dApps

Decentralised apps that connect to wallets and blockchains.

We test first

Wallet connection and signing
Transaction status, fees and failures
On-chain data shown correctly in the UI

Enterprise web apps (ERP, CRM)

Large business systems with long, multi-step workflows.

We test first

Workflows and approvals end to end
Integrations and data sync
Permissions and audit trails

[ Platforms we cover ]

Our testing supports different platforms

Web apps rarely live alone. We test the portals, mobile web and PWAs your users open, and the desktop, database and cloud layers they depend on.

Website Portals

Validate performance, accessibility, and cross-browser compatibility.

See how we test it →02

Mobile Web Apps

Ensure responsiveness and reliability across iOS, Android, and tablets.

See how we test it →03

Progressive Web Apps

Test offline capabilities, service workers, and app-like interactions.

See how we test it →04

Enterprise Web Apps

Perform end-to-end validations across roles, data layers, and environments.

See how we test it →05

Custom Web Apps

Assess unique workflows, database interactions, and APIs for accuracy and stability.

See how we test it →06

End-to-End Web Testing

Validate every layer of the stack, from UI to backend integrations.

See how we test it →07

Desktop Applications

ensuring smooth operations across systems like Windows, linux, etc. by testing core functionalities.

See platform testing →08

Databases

Integration testing to ensure your software interacts well with the underlying database.

See platform testing →09

Cloud

Cloud testing to provide automatic updates, enhanced security features, and seamless integration.

See platform testing →

[ Website testing ]

Website testing for marketing sites, CMS and online stores

Your website is often the first thing a customer sees. We test every template, form and page before launch and after every update, so nothing breaks quietly.

Platforms and CMS we test

WordPress

Themes, blocks and page builders, plus plugin and core updates.

Webflow

Interactions, CMS collections, forms and responsive breakpoints.

Shopify

Themes, apps, cart, checkout and payment flows.

Drupal

Content types, roles, workflows and module updates.

HubSpot CMS

Landing pages, forms, smart content and CRM sync.

Adobe Commerce (Magento)

Catalogue, promotions, checkout and extensions.

Also Wix, Squarespace, headless CMS such as Contentful and Sanity, and custom-built sites.

Pre-launch website checklist

Ten checks we run before every go-live

Content & linksNo broken links, missing images or placeholder text on any page
FormsEvery form submits, validates and sends the right confirmation email
TrackingAnalytics, tag manager and conversion events fire once and correctly
SEOTitles, meta descriptions, canonical tags, sitemap and robots.txt in place
RedirectsOld URLs redirect (301) to the right new pages
SpeedCore Web Vitals within target on mobile and desktop
MobileLayouts, menus and tap targets work on real phones
AccessibilityKeyboard use, alt text, contrast and headings checked against WCAG 2.2 AA
SecurityHTTPS everywhere, security headers set, admin areas protected
LegalCookie consent, privacy policy and terms linked and working

[ What we test ]

Twelve testing types, sorted by the layer they protect

A web app is more than its screens. We group our testing into four layers, so you can see exactly which part of your app each test covers.

Layer 01

Interface

What users see

Cross-browser testing

The same behaviour and layout in Chrome, Safari, Edge and Firefox, including the older versions you support.

Responsive / cross-device testing

Layouts checked at phone, tablet, laptop and wide-screen sizes, in portrait and landscape.

UI / visual regression testing

Screens compared build to build to catch broken layouts, fonts, images and styles.

Accessibility testing (WCAG 2.2)

Keyboard use, screen readers, colour contrast and forms checked against WCAG 2.2 AA.

More on this service →

Layer 02

Behaviour

What users do

Functional testing

Every feature, form, business rule and user journey checked against your requirements.

More on this service →

Usability testing

Real tasks tried on your app to find where people get stuck or confused.

More on this service →

Localization testing

Translations, dates, currencies and right-to-left layouts checked for each language and region.

Layer 03

Connections

What the app talks to

API & integration testing

The APIs behind your screens checked for correct data, error handling and contracts.

Payment & third-party integration testing

Payment gateways, sign-in providers, maps, chat and analytics checked in their test or sandbox modes.

Layer 04

Foundations

What keeps it standing

Performance & load testing

Page speed, Core Web Vitals and how the app behaves under normal and peak traffic.

More on this service →

Security testing (OWASP Top 10)

Scans plus manual testing for the OWASP Top 10, with every finding verified and retested after fixes.

More on this service →

Across all layersTest automation (regression)Stable regression suites in Playwright, Selenium or Cypress that run in your CI pipeline. Every layer above can be covered by automated checks, so each release is retested in minutes, not days.More on test automation →

Smart Testing Solutions to Perfect Your Web Application

We apply a comprehensive suite of functional testing techniques to uncover defects, validate user flows, and ensure stable performance.

Unit Testing

Verify individual components for reliable code and quick bug detection.

UI/UX Testing

Ensure intuitive navigation, responsive layouts, and smooth user journeys.

Integration Testing

Validate interactions between modules for error-free workflows.

Regression Testing

Reconfirm stability after updates or code changes.

System Testing

Check the full application against business and technical requirements.

User Acceptance Testing (UAT)

Confirm app readiness from a real user’s perspective.

Compatibility Testing

Validate across browsers, devices, and operating systems.

Responsive Testing

Ensure seamless display across screen sizes and orientations.

Usability Testing

Test ease of use and user satisfaction.

End-to-End Testing

Simulate real-world flows for smooth, error-free execution.

[ Browsers & devices ]

Coverage based on your users, not guesswork

Testing every browser on every device wastes time. We read your analytics, then split combinations into three tiers, so effort goes where your users are.

Tier 1
Full testing
The browser and device combinations most of your users have. Every test case runs here.
Tier 2
Key journeys
The next group of combinations. Sign-up, checkout and your other critical flows run here.
Tier 3
Smoke check
Older or less common combinations. A quick check that pages load and core actions work.

Browsers we cover by default

Chrome, Edge, Firefox and Safari on Windows and macOS
Safari and Chrome on iPhone and iPad
Chrome, Firefox and Samsung Internet on Android
The current version plus the older versions you support

Screen sizes we check

Phone320–480 px

Tablet768–1024 px

Laptop1280–1440 px

Wide screen1920 px and up

In portrait and landscape, on real devices and in cloud device labs such as BrowserStack and Sauce Labs.

[ Result Driven Process ]

Five steps, and what you get at each one

You always know what we’re doing and what you’ll get. Every deliverable belongs to you.

A process built on solid foundation

We manage the entire lifecycle of web app testing — from planning to post-deployment. Our structured approach delivers reliable functionality, user-focused design, traceable requirements, and actionable reporting.

Requirements Mapping
Test Planning & Design
Coverage & Traceability
Bug Logging & Tracking
Root Cause Analysis
Final Test Reporting

Step 1 of 5
Discover

We learn your app, users and goals: access, analytics, key journeys and what changed recently.

You getTest strategy & plan
Step 2 of 5
Plan

We agree the coverage matrix and write test cases for each journey and layer.

You getCoverage matrixTest cases
Step 3 of 5
Test

Manual and automated testing across the matrix, with bugs logged as they’re found.

You getBug reports in Jira or your trackerDaily or weekly status reports
Step 4 of 5
Specialist checks

Performance, security and accessibility testing where your scope includes them.

You getPerformance reportSecurity / VAPT reportAccessibility audit (WCAG)
Step 5 of 5
Automate & sign off

Regression suites handed over in your repo, fixes retested and the release signed off.

You getAutomation scriptsRelease sign-off

Free one-week POCSee how we test your web app before you commit.
Your tools, your workflowWe work in your Jira, TestRail, Slack and CI.
NDA before accessWe sign your NDA first and use test or masked data by default.

[ Tools ]

The tools behind our web testing

We pick tools to fit your stack, and we’re happy to work with the ones you already use.

Browser automation

04 TOOLS

Playwright
Selenium
Cypress
WebdriverIO

Real browsers & devices

04 TOOLS

BrowserStack
Sauce Labs
LambdaTest
Chrome DevTools

API

03 TOOLS

Postman
Newman
REST Assured

Performance

04 TOOLS

JMeter
k6
Gatling
Lighthouse

Security

03 TOOLS

OWASP ZAP
Burp Suite
SonarQube

Accessibility

03 TOOLS

axe DevTools
WAVE
Lighthouse

Visual regression

01 TOOL

Applitools

Test & bug management

03 TOOLS

Jira
TestRail
Confluence

See the full list on our technology stack page →

[ Case Studies ]

Web apps we’ve tested

A few of the web platforms we’ve tested, written up by the engineers who ran them.

“Professional QA team with a detail-oriented approach to web and mobile testing. I’m impressed with their skills, transparent communication, and quality outcomes.”

Daalvin ServiceFounders and Tech Consultant, Software Service Provider

All case studies →

[ Ways to work ]

Six ways to get your web app tested

Choose the engagement model that matches how you build and release. You can switch models as your product grows.

01Fixed-price projectChoose it when a launch, redesign or migration with a clear scope and end date. 02Dedicated QA teamChoose it when your web app ships every sprint and needs the same testers every time. 03On-demand testingChoose it when releases come now and then, and you want a cycle only when a build is ready. 04Managed testingChoose it when you want web QA run end to end for you, measured against quality targets. 05Staff augmentationChoose it when your QA lead needs extra web or automation testers inside the team. 06QA consultingChoose it when you want an outside view of how your web app is tested today.

Hire our QAHire a web QA engineerA web tester who joins your sprints, works across your browsers and devices, and learns your product inside out.See the role → Start risk-freeFree one-week proof of conceptWe test a key user journey across your top browsers and devices, so you can judge our work first.How it works →

Not sure which fits? Find your model in four questions or compare all six.

[ FAQ ]