Do High DA Backlinks From Blog Comments Help Rankings?

If you have ever left a comment on NeilPatel.com, you’ll notice that there is no URL field.

Why?

Well, a few years ago, blog commenting exploded. I was literally getting thousands of spam comments a day from people just leaving a comment for the purpose of link building instead of providing value to the community.

Sure, there are spam plugins like Akismet, but it doesn’t catch everything.

Now, most blog comments contain the nofollow attribute in which they tell Google not to follow the link or drive any “SEO value” to that URL.

But still, people still leave blog comments for the purpose of link building.

So, over the past 7 months, I’ve been running an interesting experiment to answer the age-old question…

Do backlinks from blog comments actually help rankings?

Experiment rules

First off, for this experiment, we used “domain score,” which is similar to domain authority.

If you want to know your domain score, the backlinks report in Ubersuggest will tell you what it is.

With this experiment, I sent out an email to a part of my list looking for participants and had 794 websites apply.

From there, I set the following criteria:

  1. English-only sites – It’s easier to rank on many of Google’s international search engines even without building links. I removed non-English speaking sites as I didn’t want to skew the results.
  2. Low-authority sites – I removed any website with a domain score greater than 20 and any site with more than 20 backlinks. The…

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