Essen, Germany
With SEOWALL Essen, the biggest problem is that there just is not much visible proof of performance on their own domain. For an SEO agency, limited public metrics usually means either they are not prioritizing their own visibility or they have not yet built up strong organic traction, and neither is a great look if you are trusting them with your rankings. Do they practice what they preach? From what you can see publicly, it is hard to say yes with confidence. If an SEO agency is really good, you can usually see at least some clear footprint of that on their own site. In your shoes, I would treat this as a yellow flag and either dig much deeper into case studies and live ranking examples from their clients or keep looking for an agency whose own domain already demonstrates the kind of results you want.
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