Dear +John Mueller
I`ve been digging around a little into the effects of internal links pointing to 404s. I found your rather useful post from 2013 about 404s (https://plus.google.com/+JohnMueller/posts/RMjFPCSs5fm
) but suspect the reference for that was crawl errors derived from malformed URIs etc. I also found an old product forum post from +Gary Illyes
where he mentioned "PageRank can only exist for live URLs that have a representation in Google`s index and thus URLs that were dropped because they became an error, can`t pass signals." (https://productforums.google.com/d/msg/webmasters/q-LqEpOfT1w/eLIeZXnmqooJ
But I cannot find anything regarding the links that point to 404s.
So my question for you today, should you decide to answer: what happens to PageRank when a link points to a non-existent URL on the same domain? Does the PR that link passes sink, or does Google ignore that link and remove it from the PageRank equation?
Thanks in advance if you can help with my research John :)