This feature gives a quick view of how many inbound and outbound links you have to unique domains.
In an ideal world you'd like a far larger proportion of inbound links from quality sites than outbound links.
They say a man (or woman) is often judged by the company he (or she) keeps - nowhere is this more true than in the field of search engine marketing.
Do not link to dodgy neighbourhoods and don't seek or encourage links from dodgy websites (no matter what they promise - if it sounds too good to be true then it almost certainly is not true!).
Please note - this data refers to unique Domains not unique links.
We tend to use number of unique links as a key measure across our SEO reports.
If there are slight differences in the reported volume of links in different tables or graphs it is probably because there are slight differences in the timing of each report...