Pingbacks are indication that another blog article has linked back to an article on your website, and it creates this notification in the form of a comment on your article. In most cases the website owner would be notified of such action. Brixwork subscribers who have an active Wordpress blog will occasionally receive such emails that say with something like "A new pingback on the post ...".
If it's a legitimate website/journal/blog (congratulations!)
If the link is from a legitimate source (another relevant blog, magazine/newspaper article) you may approve the pingback comment, and let the link show in the comments of your blog post that lead back to the original posting.
SEO-Purposed Websites or Link Aggregators (most common)
If the pingback is from an SEO-attempted blog/site that wants to link back to as many relevant (most likely real estate or home interior oriented, if you are a Realtor®) links to boost their own rankings, they are merely hoping for the comment to be approved, creating a backlink to their site from yours. In this case, we recommend trashing this rather than approving.
Scam/LinkFarm/Paid Link Exchange Sites (Google will most likely catch those)
If, however, the links are placed on a spam/phishing site, it may demote/degrade your URL's reputation with Google. Not only do you need to trash/reject this pingback, but you may want to take actions to disavow the link from your website. You may also opt to report a phishing/scam site directly to Google so they can exclude the contents of that URL for any ranking purposes.
Our clients nor the team at Brixwork have any control over 3rd party websites that link to any of our webpages.
For clients on an active SEO program, we can handle this matter for you. If not, the above links provide easy instructions for you to accomplish what you need.