Ideally Google Analytics, Google Search Console and read access to the website admin. Failing that, the audit is still possible with external tools, but the findings are less precise.
Both, depending on the need. WordPress is perfect for an editorial website; custom development becomes relevant as soon as the business logic is specific.
The payment provider handles the transaction itself. Our responsibility covers the integration, which we test with real orders before going live.
Yes, after an audit of the code and architecture. We will tell you honestly whether taking it over is viable or whether a partial rewrite would be more economical.
Yes, and it is strongly recommended: the app then remains your property, regardless of your provider.
We can write it or provide detailed guidelines for your team. Your in-house experts often produce the best content once they are guided on structure and keywords.