SEO: Red flags
Each of these signals has a mechanism behind it. They are not "beware of cheap offers", they are specific things you can see in the document in front of you.
What to look for in the document in front of you
A ranking guarantee
Nobody has access to Google’s ranking. A position guarantee means either ignorance, or terms written so they never trigger.
A report of impressions and rankings only
Impressions rise even when you appear for searches that will never buy. The number goes up, the business does not move.
A tool-generated audit
A hundred pages of red dots anyone can export in ten minutes. The value is in which three of them matter for you, and that is exactly what such a document lacks.
Results promised in 30 days
Technical fixes show quickly. Content and authority do not. A one-month promise means they will show you the fast part and call it the result.