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The links actually are just in some forms

Hi there! While our index is rather large, it is by no means inclusive of every link on the web. We're continuously working to increase the scope of our index, which means that you could start to see more links included than before. Also, rather than a sheer volume change in our index, it could be related to the types of sites that we're looking at for a newer index update. Unfortunately, we don't have the ability to report when a link was discovered by the index (other than in 'Just-Discovered Links' as Dmitrii mentioned above). It's certainly something we'd like to be able to accommodate for the future, but those changes would be a ways down the road. With respect to a percentage increase, I don't believe it's displayed anywhere within the app, but you could find the value for that increase by dividing the new number of links (1130) by the original number of links (1130-875) and then multiplying by 100. I hope this helps!

I think VERB answered it pretty much  but as an alternative you could click / bookmark - https://moz.com/community/q/my-questions

The lack of this feature is really disappointing.