NEW PAGE IN NEW CONFLUENCE FOR GROWTH MARKETING - Best Practices for 301 Redirects
Some of the old URL link value IS passed to the new URL with 301 redirects IF done properly and other considerations are TAKEN PROPERLY
...
ALSO be aware that when moving a page from one URL to another, the search engines WILL TAKE TIME to discover the 301, recognize it, and credit the new page with the rankings and trust of its predecessor. This process can be LENGHIER LENGTHIER if search engine spiders rarely visit the given webpage or if the new URL doesn't properly resolve (redirect chains)
...