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Here there is more information answering the question.

https://moz.com/community/q/is-everybody-seeing-da-pa-drops-after-last-moz-api-update

Moz is only fallowing the update from google. there are not responsible.

I agree to penalized low quality links. but it should be fair. When it comes to high DA links, because, for a small business they are hard to get. so when a multi-national competitor come with thousands of links out of nowhere on few high DA website, it should be penalized as well.

thanks for your answer. We came to the same conclusion as you.

Still pisses me off how these multinationals come and change the policies and throw years of work in the dustbin. IF it would be fair it would be ok.

we will continue to works Purely on quality links and not cheap stuff to improve our position.

I don't agree how the update have been made. Bridge brasil might have better backlink profile, but when you look at the detail, how the links are counted, you will see they don't have so much quality links, instead thousand of link coming from only 4 high DA domains. (see screenshot)

view?usp=sharing

Any idea why bridgebrazil.com, went down less than the other website ?

Hi, I notice today strange update on the DA of our website and competitors website as well.

• caminhoslanguages.com (our website) : drop from 26 to 19
• bridgebrazil.com : drop from 29 to 26
• rioandlearn.com : drop from 19 to 14
• carioca-languages.com : drop from 22 to 15

DA drop affect all website, but bridgebrazil.com less than the other.

bridgebrazil is close now. the website is rank first, but it is a business that no longer exist. thay rank first, only because it belong to an international company that have other languages schools in different countries, providing them a huge based of links high DA.

Sorry to tell you, with this new update you totally miss the point. In which sense does the DA represent the quality of the websites ?? Is it not fair for small school, trying hard to get excelent website to get penalized like this, because it is really hard for them to get link from very high PA pages you know ?

Could somebody give explication? If you would like to improve your algorithms, I would suggest to reduce the values of the links from companies internal linking. Because it provide unfair advantage for small business.