as Im aware, major changes to a website will result in a temporary drop in Google rankings, as the site will need to be re-indexed for the changes.
However, does anyone have any guidelines or official documentation to say what Google sees as "minor" and "major" changes? It seems so vague that it's unbelievable.
I don't want my site to drop in rankings at all and want to avoid this at all costs so I need to make sure I'm not creating major changes to drop my rankings.
For me personally, I will only be adding a few paragraphs of text to the homepage and changing the stylistic layout of the page. The existing text that is there now will also remain and is only being added to.
All other pages on the site (about another 200 pages) will be the same (but placed in a different site template), and URL structure will not change.
Will this be enough for Google to see it as a "major" change, since the index page is being changed and the site graphical template is different, or will I be okay here?
thanks in advance