What information can you check by looking at a Link Profile Graph?
A link profile graph will show you the amount (and the quality of) links to your site. What it will show you first is the quality of the majority of links. If the majority of the links to your site are low quality, you’ll want to remove some of those and try to gain some higher quality links. Other information could include looking for disproportionate spikes in low to mid-strength links, as well as plotting the DA (Domain Authority) and PA (Page Authority) across your link profile.