Spam control is very difficult but Blogger has found many tips that can reduce spam. Too much spam is bad for SEO. But if your blog is genuine but it can be treat as spammy due to uncontrolled of spam from comment. There are many comment I receive but many of them are not related to my content and spammer are just leaving their blog address for making backlink.
These comments will form a link , as in the your blog template xml code that serves as a generator to Permalink Comment . This is not known by many blogger that every blog comment generate a unique permalink and if anybody clock on that it will redirect to the specific content or post. Permalink use Anchor text is usually the date or day by which a published comment on a post. Generally we can find it at the top right side or at the bottom of the comment box it depends on template coding. By default, this permalink does not contain any attribute relationship, meaning the search engines "allowed" to follow and index those links. As a result your blog link juice may share by commentators. But for this your commentators comment must be well describe.
However maximum time we get comment within one line or some visitors leave blog link and Search Engine follow them with your blog content. And it is really very bad for your blog. Because if search engine find any bad and short spam comment with link then your SEO score will be downgraded. As a result your site link will down top to bottom in Search Engine result Page (SERP). Ultimately you will lose traffic as well as your page rank will be decrease. So SEO plays a biggest rule to make your blog up in every aspect.
You would see SEO expert suggest to make your blog permalink no-follow. Because without this attribute your blog will affect a lot. So in this tutorial we will learn that how to add no-follow attribute in comment permalink.
Step 1 Log in to your Blogger Account and Go to your Blogger Dashboard
Step 2 Now click on -> Template -> Edit HTML
Step 3 Now Find this code like below by pressing Ctrl+F
<a expr:href='data:comment.url' title='comment permalink'><data.comment.timestamp/></a>
Step 4 Now replace the above code by below code
<a expr:href='data:comment.url' rel='nofollow' title='comment permalink'><data:comment.timestamp/></a>
Step 5 Now simply hit the save button.
If you have done then now you are secured from spam. And your blog SEO score will improve as well as higher position on SERP. If you have anything to share or ad something with this then feel free to leave a comment below.