MKA

2 days ago google decided to "kick" the main page from a domain out of the search results.
Before this, for many months, it was already "downgraded" and domain.com/page2.html was favored over for some reason and listed on page 1 for many keywords.
Not a big deal because traffic is traffic and the main page was also getting a ton.

However now the main page is really gone.
It don't want to call it de-indexed otherwise the whole domain would be punished. It is free from any other manual action, has no errors, no robots stuff or whatsoever. In fact i did not touched anything at all for a long time.

so when you search site:domain.com i still get xxxxx domain results but no main page. Anyone has any clue what/where to look for?