Why does Google Alerts call my website a blog?

[TMI.com]

Our company started a WordPress blog about 14 years ago. It has since added a third-party forum, a user-submitted photo gallery, and a huge database of searchable products. We also have almost 4000 posts.

With all that said, Google Alerts often lists our content under blogs rather than websites. Sometimes it shows up in both? Does anyone know what criteria Google uses for determining the type of content, and how we can signal to them that we are a website?

[BrianCrouch]

But, is that doing you any harm?

When the site was first set up, did you submit the site to blog directories? Is there a blog feed in Feedburner or anything?

[TMI.com]

That's just it. I don't know if it's something we need to be worried about. Since the site was setup so long ago, I don't know if it was ever submitted to blog directories. I also don't know whether we have an old Feedburner feed or not, but I don't think so.

[BrianCrouch]

"Sometimes it shows up in both," to me, makes me think you've (probably) nothing to worry about. You're getting crawled as a Blog, which helps you in blog specific searches like Icerocket or Google Blog Search, etc., and you're also appearing as a website.  It certainly doesn't seem like it will hurt your rankings.