WordPress website development
Present your offer clearly and help visitors find the next step. We work on structure, design and implementation for company websites, service businesses and portfolios, with content your team can maintain in WordPress.
WordPress · WooCommerce · Integrations · Support
We design, build and develop WordPress websites and WooCommerce stores. From a clearer company website to an integration or ongoing improvements, Testin helps turn your priorities into a workable scope and a website your team can use.
Based in Poland. Working with businesses and open to agency collaboration.

Our technical focus
Present your offer clearly and help visitors find the next step. We work on structure, design and implementation for company websites, service businesses and portfolios, with content your team can maintain in WordPress.
Build a new store or improve an existing one. We can help with product presentation, store functionality, checkout changes and integrations. The starting point is your current setup and the buying process you want to improve.
Your website may need to exchange information with the other systems you use. We help define the connection, required data and functionality, then scope the development around those requirements.
Keep moving after launch. Updates, fixes and planned improvements can form part of ongoing support. We start by understanding the website, its condition and the responsibilities that need to be covered.
A new project does not always mean a new website. You may need to clarify your offer, improve a form, extend your store or resolve a recurring technical issue.
Share the website address and describe the problem. We can discuss the next step and whether it calls for a focused improvement, a broader review or a new implementation.
Selected projects
From enquiry to delivery
Tell us what your business needs, what already exists and what is getting in the way. You do not need a finished technical brief to begin.
We clarify the scope, required materials and the decisions needed before implementation. The proposal sets out the agreed work and how to move forward.
Design and development progress through the agreed stages. The relevant pages, forms and functionality are checked before release.
After launch, we can discuss maintenance and further development around the needs of your website and team.
For agencies
If you lead branding, design or marketing projects, explore how Testin could support the WordPress and WooCommerce work your clients need.
Send your website address and a few sentences about the project. We will reply by email to clarify the need and discuss the next step.
With your consent, Testin will use Google Analytics 4 and analytics cookies to measure visits, brief downloads and contact activity. We do not start Google Analytics without your consent. Declining does not restrict access to the website or contact form.
Google receives information about pages visited, your device and interactions, and an identifier stored in cookies. Connecting to Google also reveals your IP address; according to the GA4 documentation, IP addresses of EU users are not stored. We do not send names, email addresses, phone numbers, form content or URL parameters to GA4. We do not enable ad personalisation or Google Signals.
The tool is provided by Google. Data may also be processed outside the European Economic Area. How Google processes data.
Your choice stored in browser storage and the necessary consent cookie, as well as analytics cookies, is set to expire after up to 180 days. You can change or withdraw consent at any time using the “Analytics and cookie settings” button at the bottom of the page. Withdrawal stops further measurement and removes accessible GA cookies for this website; it does not delete data already sent. For questions about your data: biuro@testin.pl.
Current setting: analytics disabled.