Hey there SEO people. I have a legitimate question for all the SEO experts out there. I have one major website of a DA in a technology niche of 55+. Apart from that I have 20-30 other websites with DA ranging from 15 to 45.

Now, after the Google helpful content Update in Sept 2023. Our sites started going down. Even after the April 2024 update, we are still going down. We noticed that somehow our main site was still on rank after putting in some effort. But, we lost our rankings on all the microsites. Even after following all SEO guidelines and the day & night hard work of all the team members, the micro websites were not getting retrieved. Please Help me understand what we are missing. I am unable to get the answer as we have tried almost everything.