Type URL of your website to get quantity of backlinks from homepage - homepage to your website. It will show you total outbound links, inbound links on that page and follow domain for each of your inbound links, outbound links available.
developer.r-project.org
Out-link is a link that points from your website to another website. These are out-links list of developer.r-project.org ( 7 ) View all
In-Links : Another name for backlinks, or links into a domain from external sources.These are in-links list of developer.r-project.org ( 1 ) View all
| contributor.r-project.org | Check link |