SEO Tools and Recomendations

Hi Everyone,
Am looking for some expert advise on the below:
1) I need some suggestions for SEO tools to track the work being done on a website- Tool to show what changes have been implemented with timestamps, has the SEO scores improved after implementing these changes.

2)Can sub domain contribute to main domain SEO? For example, I have the main business website on a CMS and now I want to add a blog on a subdomain which will be built on a different CMS. Will this have a positive or...

SEO Tools and Recomendations

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