[aga98mtl]

Getting quality links is usually a long and expensive process. Paying $6k could make sense if they are delivering good results.

[qax]

That’s what I heard, too, but I couldn’t tell whether they’re delivering good results on the backlink side. The only metric I see is the domain authority score, but I also heard it’s quite easy to game that. How do you usually tell the backlink building is on track?