The SPS3 protocol is used for crawling people profiles, so should add it again.
For the content search, I suggest you to follow the best practices and use the default zone url in the content source:
Crawl the default zone of SharePoint web applications
When you crawl the default zone of a SharePoint web application, the
query processor automatically maps and returns search-result URLs so
that they are relative to the alternate access mapping (AAM) zone from
which queries are performed. This makes it possible for users to
readily view and open search results. However, if you crawl a zone of
a web application other than the default zone, the query processor
does not map search-result URLs so that they are relative to the AAM
zone from which queries are performed. Instead, search-result URLS
will be relative to the non-default zone that was crawled. Because of
this, users might not readily be able to view or open search results.