We studied results from over 6.5 million domains to find out how many external links it is “normal” for a URL to receive from a given URL on mainstream sites.
The conclusion is that, in most cases, there is roughly one external link associated with one URL. In other words, most pages seem to have only one backlink on average.
Let’s look at how we arrived at this number in a little more detail!
In this study, we looked at two numbers for our sample set – external referring URL count and external inbound link count."" width="1310" height="319"
We calculated the ratio of these two counts greece mobile database for each domain name in our research dataset. Let’s see what the numbers tell us.
analyze
We started with approximately six and a half million records for the top-level domains in the dataset. We compared the two backlink counts shown in the backlink breakdown. These are: the sum of all backlinks pointing to each domain and the sum of all URLs with at least one backlink.
Before we look at the data, let’s quickly take a step back and consider how we present this research.
A common approach is to produce a box plot that looks at the median and the upper and lower quartiles:
"" width="378" height="251"Unfortunately, these data are affected by outliers, i.e. the boxes within the boxes and the scatter plot looks flat. After removing the outliers, here is what it looks like:"" width="388" height="250"
Zooming in, we see that the ratios are more tightly distributed and the box plot should be a flat line. There still seems to be a lot of noise. We can look at the ratios in different ways to get an idea of where most of the data lies.