If you own a WordPress website there’s a high possibility that you have already encountered this numerous times. These are those comments which are not content related advertisements and most of the times incoherent phrases or paragraphs. They are attempts to generate or boost web traffic to their own website. According to Wikipedia, comment spam refer to a broad category of spambot or spammer postings which abuse web-based forms to post unsolicited advertisements as comments on forums, blogs, wikis and online guestbooks.
Identifying and Combating Spam
It is easy to identify a WordPress comment spam if it has already been posted or waiting for moderation. But what if it could be prevented, that only legitimate comments are the ones to be posted or to be moderated. It would definitely cut down the burden of a WordPress admin in moderating comments.
WordPress comment spam is a common occurrence that Pandora WebRanger is able to detect every day. Below is a sample of a comment spam that WebRaner has encountered.
Generally speaking, Radio wave in general, is a process where vitamins, drugs, compounds and herbs are combined together in a formula that is fixed and injected into the middle region of the skin (called mesoderm) to ruin cellulite and fat. My website :: get more info
These comment spam are accompanied with a spam link that tricks the admin or a visitor to visit the website of the spammer to generate web traffic of their own. On the sample comment above, “get more info” links to a spam website but in this case it has been removed for the safety of the reader.
There are a lot of ready-made solutions available in the internet for fighting comment spam. CAPTCHA is a notable solution. It verifies human input before allowing to comment but at the expense of convenience. WordPress also has built-in plugins that were designed to identify bots from humans that comment. Plugins are commonly used in securing WordPress not only from spam but all kinds of attacks. If you are already using a plugin, it is important to keep them up-to-date.
If you have a proactive firewall there are several ways to preemptively block comment spam. One way is blocking via known bots. Databases for malicious bots exists which could be then cross-referenced and used to preemptively block traffic from these bots that before they could even generate comment spam. The downside of this approach is that new spam bots not in the database could possibly get through. Another way is to block content via checking the URL attached to the comment or a blacklist of certain keywords. There is also a disadvantage when using this approach because there is still a possibility that legitimate comments might be blocked.
WebRanger is a web application security plugin for WordPress, Joomla, Drupal, Prestashop, and Magento that combines three (3) security solutions helps to defend your website. To know more about how WebRanger can protect you from comment spam and other attacks you may visit this link.
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