QA and Software Testing
Find the bugs before your customers and your reviews do.
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About the service
We provide manual and automated quality assurance for web and mobile products: functional testing, cross-browser and device coverage, load testing, accessibility checks and security basics. Every finding is documented with steps to reproduce, severity, environment and evidence, so your developers can fix rather than investigate.
340
average defects documented in a first full audit
85%
of critical user journeys covered by automated tests
12min
runtime of the full regression suite in the pipeline
Challenges we solve
- #1
Every release breaks something that used to work.
We automate the critical paths first: registration, checkout, payment, search. The suite runs on every merge and blocks the deploy if a core journey fails.
- #2
Bug reports arrive as one-line messages and developers cannot reproduce them.
We introduce a report template with environment, steps, expected and actual result, screen recording and console log. Reproduction time drops sharply within the first sprint.
- #3
The shop collapses during the first campaign peak.
We run load tests with k6 against a production-like environment, find the real bottleneck, whether database, cache or third-party API, and verify the fix under the same load profile.
- #4
The product fails accessibility requirements shortly before a legal deadline.
We audit against WCAG 2.2 AA with screen readers and keyboard-only passes, prioritise findings by legal risk and hand your team a remediation backlog with concrete code-level fixes.
Testing of sites and applications
A defect found in testing costs a fraction of the same defect found by a paying customer at checkout. We build a regression suite in Playwright that runs on every pull request, plus a manual exploratory pass before each release where human judgement still beats scripts. You receive a test plan, a living suite in your repository and a release report that says clearly whether it is safe to ship.
Recommended services
- 01 - 5Website developmentFast, secure websites your team can update without a developer.
- 02 - 5CRM systemsOne system where every deal, call and invoice actually lives.
- 03 - 5Mobile applicationsiOS and Android apps that survive the first thousand real users.
- 04 - 5Telegram bots and parsersAutomate ordering, support and data collection inside a chat.
- 05 - 5Software developmentCustom systems for processes no standard product covers.
Frequently asked questions
A one-off manual audit of a mid-sized site starts at 1,400 EUR. Building an automated regression suite starts at 3,500 EUR. Ongoing QA as part of your sprints is from 1,200 EUR per month.
Playwright and Cypress for end-to-end tests, k6 for load, axe and NVDA for accessibility, BrowserStack for device coverage and Jira or Linear for tracking. Everything lives in your own repository and tooling.
Five to ten working days for a typical site including report. Complex applications with many roles and permissions take three to four weeks because each role has to be tested separately.
Yes. We keep a core set of physical Android and iOS devices for touch, performance and camera behaviour and use a cloud device farm for the long tail of screen sizes.
No, and we prefer not to have them. We work with anonymised or generated test data. If production access is unavoidable, we sign a processing agreement and work under documented, time-limited access.
ourclients
- Markus LehmannReview from Google2 months ago
websitebestellen exceeded our expectations! The new website is modern, fast and precisely tailored to our target group. Working together was straightforward and highly professional. A clear recommendation!
- Sabrina HoffmannReview from Google2 months ago
Great experience from start to finish! The team at websitebestellen advised us excellently, implemented our wishes and created a wonderful website. Absolutely recommendable!
- Lea SchneiderReview from Google2 months ago
websitebestellen took our online presence to a new level! The site not only looks great, it also brings us noticeably more enquiries and customers. Thank you for the excellent work!
Related reading
- Mobile app or PWA? A decision guideWhat a progressive web app can do in 2026, where a native app is still unavoidable, and how the costs compare over three years.
- Improving Core Web Vitals: the measures that actually workLCP, INP and CLS explained without jargon, with the fixes that move field data rather than lab scores.
- Next.js or WordPress for a company website?A practical comparison for German SMBs: editorial comfort, running costs, security and the point at which a rebuild is worth it.
Your contact person
Miriam Kraus
I read every request personally and get back to you within one business day.