Forum Moderators: Robert Charlton & goodroi
BEFORE PENALTIES
#1 = will get penalty
#2
#3 = will get penalty
#4
#5
Every result with no penalty just moves up, filling in the gaps that were opened.
They all stay in the same relationship with each other.
AFTER PENALTIES
new #1 = was #2
new #2 = was #4
new #3 = was #5
new #4 = was #6
new #5 = was #7
BEFORE RE-RANKING
#1
#2
#3
#4
#5
All the results now get shuffled, some go up different amounts and some go down:
AFTER RE-RANKING
new #1 = was #3 [up 2]
new #2 = was #21 [up 19]
new #3 = was #2 [down 1]
new #4 = was #1 [down 3]
new #5 = was #11 [up 6]
[edited by: tedster at 7:47 pm (utc) on Mar 1, 2011]
The first time I heard of re-ranking was in the context of a LocalRank paper from Google - in 2002. The idea presented there was this:
1. Take an initial set of the top 1,000 URLs, scored by the relevance algorithm.
2. Now analyze those 1,000 results by how they inter-link within the set - disregarding any links from outside the set.
You've now got a new number, which you can apply by re-ranking the original set of 1,000 pages. No new pages will come into the mix, and no results can be thrown out either.
One reason I think people should not change too much until things 'settle' is...
The Farm Update did not find sites that were violating a guideline and give them a penalty. Instead, it tried to measure the quality of page content. It now generates rankings based on folding that additional ingredient into the full recipe.
“Therefore any time a good site gets a lower ranking or falsely gets caught by our algorithm — and that does happen once in a while even though all of our testing shows this change was very accurate...”
This doesn't sound to me that Google's targeting pages, but sites.
If it's a re-ranking due to algo change, changes to the site/page can bring the rankings back soon after crawl.
but what I guess they probably miss out on thinking it's a penalty is taking a look around and wondering why another page came from nowhere to rank...
Links, links, links.
and correlations can be very helpful in analyzing anything.
When I remove quality related outbound links from pages, the pages immediately shoot up in ranking. Tested over and over and over and yet to see a case where there was not an improvement thus far.
though pages with many relevant nofollows (notification of a text advert as required by Google) are the ones that have taken the biggest hit