Case study re-directing one site into another?

[nicole.healthline]

Hi there,

We have access to a third party site that has high domain authority and we want to know if anyone has a case study demonstrating what happens when you 301-redirect a high DA site to another high DA site. In particular, we are wondering what kind of lift the site saw from the additional link equity?

[donsilvernail]

This is not something I have dealt with directly but try these posts https://moz.com/blog/301-redirection-rules-for-seo

https://moz.com/blog/arent-301s-302s-canonicals-all-basically-the-same-whiteboard-friday

https://www.bing.com/videos/search?q=moz+whiteboard+friday+301+redirect+of+urls&view=detail&mid=F3F5BF169B2C438D27B6F3F5BF169B2C438D27B6&FORM=VIRE

[willcritchlow]

Unfortunately most of the largest examples are not shared publicly. You could go looking for external data (e.g. SEMrush / searchmetrics / similarweb) around the time of big / well-known mergers. There have been a few over the years - but I don't know off-hand what historical data there is available. The biggest I remember being interested in was when Adobe bought Macromedia back in the day (but there won't be historical data going back that far, and anyway everything has changed since then).

Aside from "outside looking in" approaches, the biggest public case study I could find is this one.

Hope something there helps.