I was reading through one of my favorite blogs, Search Engine Journal, and stumbled upon an excellent article regarding the use of blog commentes for link building and the on-going argument of whether or not it is 'considered' spamming.
The author Ann Smarty raises an important question! “If I build links via blog commenting - do I look like a spammer?”
To see how comment spam can be identified algorithmically, let’s try analyzing Spam Karma reports (it was only fooled once or twice with my own blog). The plugin uses combination of the following ‘red flags’:
- It looks at the period of time the comment was posted after the page loaded;
- It analyzes if the comment contains an URL(s) in content;
- (If there is an URL in content) it compares non-URL comment length and the length of the URL itself;
- It looks if the URLs are linked or not;
- It filters some ’spammy’ IPs;
- It looks how old the post is and how long ago the latest comment there appeared;
A search engine can do pretty much the same plus it might be looking into:
- comment relevancy;
- overall comment content length;
- similar/same comments around several blogs;
- your linked comments acquisition rate (e.g. 100 per day might look unnatural);
- some blacklist words like "porn" both in the author link and the
This is certainly a hot topic! Feel free to leave your thoughts or suggestions in the comments below..