What tool do I use for prospecting for SEO?

There are many “grading” sites out there, but what they grade on is different from provider to provider, like this one https://sitechecker.pro/.

Keep in mind that you can always check these few tips to see if your client may need SEO support:

Type into Google search keywords related to the business – is it on the first page of results? Ex: “engagement rings”
If you type in keywords related to the business and add the towns it does business, does it appear in the Snack Pack listings under the map? Ex: “engagement rings Springfield”
When you type in the name of the business does the Knowledge Graph appear and is it correct and complete? Ex: “Berger’s Jewelers”
Run a Test My Site with Google and check the mobile site speed.
Ask the prospect “Have you looked at your Google Analytics Benchmark reports to see how your website traffic compares to other businesses like yours?

Lastly, once a client commits to an SEO campaign, our SEO team will do a complete audit of their site, make recommendations, suggestions, etc.