What is blog commenting in SEO
If you've ever posted a comment on NeilPatel.com, you may have noticed that there is no URL field. Why?A few years ago, commenting on blogs suddenly became commonplace. My blog got thousands of spam comments every day from people who only shared a link in the comment without adding anything useful to the discussion, and anti-spam plug-ins like Akismet don't catch every spammer. Now most blogs include a NoFollow attribute that tells Google not to follow the link and not to assign an “SEO value” to the URL. Even so, there are still people who post comments on blogs for link building purposes. Over the course of the past seven months, I've conducted an interesting experiment to answer the following age-old question once and for all ... Do backlinks in blog comments really affect ranking?
The rules of the experimentFor this experiment, the “Domain Score” was used as a measured value. This value can be compared with the domain authority. If you want to know your domain score, you can visit the backlinks report in Ubersuggest. You can find it here: Step # 1:Enter your URL and click "Search". Step # 2:Click on “Backlinks” in the left sidebar. Step # 3:Search for your domain score. The domain score describes the general strength of your website on a scale from 1 (weak) to 100 (strong). My website scored 91 and was therefore rated “excellent”. To find participants for my experiment, I sent an email and 794 websites applied. Participants had to meet the following criteria:
- English language websites only - For English-language sites, it is easier to be placed in Google's international search results even without a link being established. In order not to distort the results, I have excluded foreign-language sites.
- Low Domain Authority websites only - For this experiment I only allowed websites with a domain authority of under 20 that have fewer than 20 backlinks, because websites with a high domain authority are placed faster for new keywords, even if they are not actively building links.
- No subdomains - I didn't allow WordPress.com websites, blogspot pages, or Tumblr pages because that would also skew the results.
Carrying out the experimentAs in my earlier experiments on link building and on-page SEO, the participating websites had to write a blog post that was 1,800 to 2,000 words long and fits the topic of their site. Participants had 2 weeks to publish the article on their website. After 30 days I checked your URL with Ubersuggest to find out for which keyword the respective page was placed on position 100, 50, and ten of the search results. Ubersuggest has a large database that currently includes 1,459,103,429 keywords. Most of these keywords are almost never used as a search term, but some of them are entered hundreds or thousands of times in search engines every month. Some search terms are even used millions of times a month. The vast majority of search terms used are long-tail keywords. We then spent a month building links and then waited three months to find out what was happening to the page rankings. But here's the twist. Of course, we didn't set up the same links for all websites, but instead assigned the participants to four groups (about 46 pages per group). Here is an overview of the groups:
- Control group - The websites of this group did not build any links because we wanted to see what would happen to their ranking without link building.
- No Follow Links in Comments on High Domain Score Blogs - These websites have left ten links in blog comments. The link led to the new article. The comments were only left on blogs with a Domain Score above 50 and NoFollow attribute.
- DoFollow links in comments on high domain score blogs - These websites have left five links in blog comments. The link also led to the new article. The comments were left on blogs with a domain score of over 40 and a DoFollow attribute. (I reduced this group's domain score and number of links because we couldn't find enough blogs that match these criteria, as very few allow DoFollow links in the comments section).
- DoFollow links in comments on low domain score blogs - These websites have left ten links in blog comments. The link led to the new article. The comments were only left on blogs with a domain score of at least 20 but not higher than 39. 50 and leave NoFollow attribute. (It was very easy to find suitable blogs for this group because most blogs have a rather low domain score.)
The control groupDo you really need links to appear in search results on Google? The graphic below provides an answer to this question: As you can see, the rankings increase automatically over time, even without link building. If the article is great and the On-PageSEO is optimized, the article will be placed in the search results, but if you do not do link building, you will not necessarily achieve the desired rankings. However, the page may appear for long-tail, low-competition keywords.
No Follow Links in Comments on High Domain Score BlogsThe results of this group are very interesting. As you can see, these websites achieved better results than the control group, even though they were no-follow links. However, it must be remembered that this result can depend on many variables, including: on the quality of the content. In general, however, it can be said that this group achieved better results, if not outstanding.
DoFollow links in comments on high domain score blogsGoogle is smart and can tell if the link is from user-generated content (like a blog comment), so I figured that the links from this group would still not have a major impact on the ranking, even though they were DoFollow links acted. But to my surprise, this group achieved the best results. As you can easily see, links on websites with a high domain authority have an impact on the ranking, even if it is just a comment written by the user, but the links must have the DoFollow attribute.
DoFollow links in comments on low domain score blogsThis group was able to build more DoFollow links because there are more low domain authority blogs that allow DoFollow links. As can be seen, this group achieved better results than the group of no follow links, but not nearly as good results as the group of do follow links from websites with high domain authority. The group placed ten links, not five, but the quantity doesn't seem to have as much of an impact as the quality, so a high domain score. This group increased their rankings by 337%, but despite the lower number of links, Group 3 was able to increase their rankings by a whole 828%. Group 4 also got good results, but not as good as Group 3.
ConclusionWho would have thought that link building with blog comments would work? If you want to implement this strategy yourself, you should find blogs that allow DoFollow comments. If you don't know how to find blogs that match these criteria, you can use the following search operators:
- “Title =” CommentLuv Enabled ”” KEYPHRASE - With this operator you will only find blogs that have CommentLuv activated and thus transfer Link Juice to your website.
- "Dofollow blogs" - With this search query you will find articles that contain lists of blogs that allow DoFollow links. Some of these articles look like this, but you should check every blog because many of the blogs that are listed as DoFollow still only allow NoFollow links.
- Followlist - This directory lists blogs that allow DoFollow links.
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