If you have previously disavowed links through Google’s disavow tool, you always have the option to change your disavowed filed. Reavowing a link is as simple as removing the link from your disavow file and then resubmitting the file.
Here’s an example:
#unnatural links to disavow
domain: really-spammy-directory.com
domain: spammy-directory.com
domain: another-spammy-directory.com
Perhaps one of these is a good directory link that we have accidentally disavowed. All we need to do is create a new file:
#unnatural links to disavow
domain: really-spammy-directory.com
domain: spammy-directory.com
Sample Links to Reavow
You may want to reavow a link if you have solely relied on an automated link auditing tool to make your disavow file. There is a good choice that you may have disavowed a link that was actually not unnatural.
Another example is if a website disavows a link itself. However, Google can determine if you’ve disavowed a link yourself and will ignore the disavow directive.