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Hi, we would highly recommend using Moz Pro, to carry out the SEO audit.

Hi, when did you add the internal links? If its only a day or say ago, it could be a delay between when say Googlebot or an SEO tool spots you've added internal links, to improve your on-page SEO- hope this helps, check back say 2- weeks later, and they are likely to have been indexed by the SEO tool.

Hi, at our SEO agency we always use Google Search Console, its a free tool offered from Google, if you click the "performance tab", it should show you a list of keywords, and where your business ranks for these keywords, i hope this helps?

Hi, yes, most defintely the best way to improve e-commerce SEO, is most definitely to write "Evergreen Content Marketing", and to also obtain "do-follow backlinks", yet the links must be quality backlinks. Hope this helps?

Hi, how many followers and also posts does the Facebook account have? It could be that the Facebook account is brand new, and therefore hasn't been crawled and indexed by Googlebot before?

If you only have say less than 10 product pages in total for air freshers, it makes it much easier to build backlinks to these pages. you need to build quality backlinks.

We use Screaming Frog for this, it also shows us if there are any 404 errors

Hi, when it comes to local SEO, its much better to not use a virtual office, if possible. the reason being there will be most likely possibly, be hundreds of other businesses using the same address. So, we sometimes, recommend using a virtual address for a short period, until the business gets its own business premises, does this help you?

Hello, Moz Local is a really good SEO tool for this, or, you could use a backlinks tool, such as Majestic SEO, look at your competitor's backlinks, and build the same backlinks/ business citations.

There are many tools to do this, for outbound links we use Screaming Frog at our SEO agency. For inbound links we use Moz.