Amsterdam, Netherlands
If an SEO agency can’t get its own house in order, you shouldn’t let them touch yours. Simple Glo has a solid domain authority and you can see their presence is actually growing, backed by backlinks coming in from a variety of sources, which usually means they know how to build authority the right way, not just spam links. Do they practice what they preach? Their own domain performance says they mostly do. For you, that’s a good sign: they understand how to build and compound visibility over time, not just chase quick wins. I’d lean toward hiring them if you like their strategy and communication style, but I’d still ask them to walk you through exactly how they grew their own site and how they’ll translate that into results for your niche.
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