When Google trusts you it’s because you’ve earned its trust to help it satisfy its users in the quickest and most profitable way possible. You’ve helped Google achieve its goals. It trusts you and it will reward you with higher rankings. Google will list “friends” it trusts the most (who it knows to be reputable in a particular topic) at the top of SERPs.
I had the same issue. I invested time to go to the website of each of these tools, had to read through the specs of what they offer in their free account etc etc. Some of them did not even allow you to use one single feature until you gave them details for a credit card (even thouhg they wouldn’t charge it for 10-15 days or so). I did not enjoy this approch at all. Free is free. “Free version” should only talk about what you can do in the free version. Same goes for trial version.

A satisfying UX is can help your rankings, with second-order factors taken into consideration. A poor UX can seriously impact your human-reviewed rating, at least. Google’s punishing algorithms probably class pages as something akin to a poor UX if they meet certain detectable criteria e.g. lack of reputation or old-school SEO stuff like keyword stuffing a site.

Google knows who links to you, the “quality” of those links, and whom you link to. These – and other factors – help ultimately determine where a page on your site ranks. To make it more confusing – the page that ranks on your site might not be the page you want to rank, or even the page that determines your rankings for this term. Once Google has worked out your domain authority – sometimes it seems that the most relevant page on your site Google HAS NO ISSUE with will rank.
When using the Keyword Explorer, Ahrefs will also produce the "parent topic" of the keyword you looked up, as you can see in the screenshot above, underneath the Keyword Difficulty meter. A keyword's parent topic is a broader keyword with higher search volume than your intended keyword, but likely has the same audience and ranking potential -- giving you more a valuable SEO opportunity when optimizing a particular blog post or webpage.
When it comes to finally choosing the SEO tools that suit your organization's needs, the decision comes back to that concept of gaining tangible ground. It's about discerning which tools provide the most effective combination of keyword-driven SEO investigation capabilities, and then on top of that, the added keyword organization, analysis, recommendations, and other useful functionality to take action on the SEO insights you uncover. If a product is telling you what optimizations need to be made to your website, does it then provide technology to help you make those improvements?
QUOTE: “For the mostpart it should be fine I think the the tricky part that you need to be careful about is more around doorway pages in the sense that if all of these pages end up with the same business then that can look a lot like a doorway page but like just focusing on the content duplication part that’s something that for the most part is fine what will happen there is will index all of these pages separately because from  from a kind of holistic point of view these pages are unique they have unique content on them they might have like chunks of text on them which are duplicated but on their own these pages are unique so we’ll index them separately and in the search results when someone is searching for something generic and we don’t know which of these pages are the best ones we’ll pick one of these pages and show that to the user and filter out the other variations of that that page so for example if someone in Ireland is just looking for dental bridges and you have a bunch of different pages for different kind of clinics that offer the service and probably will pick one of those pages and show those in the search results and filter out the other ones.
What does it mean for a site to be SEO friendly? It goes beyond just posting quality content (though that’s a very important part!). There are all kinds of ways big and small that can prevent your site from being seen by search engines and thus by users. Our free audit tool begins by looking at some of the most important facets of your website you might not even be aware of.