Large Redirects, How do I cross check two websites

[petmkt]

My company currently owns five different websites and every day we download a list of for Google crawl errors.I then crawl the downloaded list with screaming frog to double check the redirects to make sure the pages are not 404s. We have two websites that have similar identical content and used to cross-check each and used to redirect to the parent page by our bread crumbs.

(404 error) www.website1.com/productxx.html

(working Site) www.website2.com/productxx.html

we then redirect (404 error) www.website1.com/productxx.html to the last parent page or similar page.

Is there a faster way to compare two websites beside opening 200 windows all at once?  Is there a program that would allow us to compare two websites?

[Paddy_Moogan]

Hi there,

Thanks for the question. Can I just check something regarding this bit from your question:

"My company currently owns five different websites and every day we download a list of for Google crawl errors.I then crawl the downloaded list with screaming frog to double check the redirects to make sure the pages are not 404s."

I'm a bit confused because you say you download a list of crawl errors, which would be 404s, but you then crawl them to make sure they're not 404s?

Could you clarify this bit?

Thanks!

Paddy