DesignSmoke

Anti-Spam Zapper will automatically remove spam comments and block spambots without annoying CAPTCHAs.
Protect your website from spam comments and automated spam using this free WordPress anti-spam plugin.
Features
<ul>
<li>Protect Comments</li>
<li>Block Spambots</li>
<li>Marks comments as spam, without deleting them, just-in-case there’s a false positive</li>
<li>Nothing to fill out, completely silent action</li>
</ul>
FAQ
<ul>
<li>Does this require javascript?</li>
<li>
Yes, however the vast majority of users have javascript enabled (over 99%). Users with javascript disabled will be shown a message, just to make sure nothing is lost.
</li>
<li>
Can I modify this plugin?
</li>
<li>Yes! The plugin is <a href="http://www.gnu.org/licenses/gpl-2.0.html" rel="nofollow ugc">licensed under the GPLv2 License</a>.</li>
</ul>
Upgrade to Pro
Want to protect your contact forms too? <a href="https://www.designsmoke.com/anti-spam-zapper-wordpress-plugin/" rel="nofollow ugc">Upgrade to Anti-Spam Zapper PRO by DesignSmoke</a> to stop all spam comments and form submissions on your WordPress website or WooCommerce store.

Anti-Spam Zapper for WordPress

Anti-Spam Zapper will automatically remove spam comments and block spambots without annoying CAPTCHAs. Protect your…

fraudgrade

By default, WordPress is an extremely secure system. However, it is also open to an enormous amount of vulnerabilities which are disclosed publicly on numerous different websites as they are found. That’s where FraudGrade comes in, to save you from potential WordPress exploits and spam.
Since threats are usually sent from behind an anonymizer such as a proxy server or Datacenter IP, the FraudGrade Fraud Detection and Prevention plugin can easily mitigate these risks. In addition to securing a WordPress website against 0-Day Exploits the plugin can also easily mitigate most types of hacking attempts via brute force, CSRF, LFI, SQLi, XSS and etc.
The plugin can also be used to deter most types of spam such as comment spam, xml-rpc spam, admin area spam, login attempt spam and etc. By clicking just a few checkboxes you can have your site secured in less than 5 minutes.
If you are having a high rate of spam and other fraudulent activities from certain countries the plugin will prove useful in your scenario. Configure any and all countries to be blocked from reaching your WordPress installation and even redirect them to an entirely different URL if required.
Detect and block blacklisted IPs which have been associated with online fraudsters. Checking over 50 DNSBL’s for issues such as malware distribution, hacking, credit card fraud, ransomware, spamming, botnets, and many other types of cybercrime activities and abuse.
FraudGrade deploys Artificial Intelligence and Machine Learning with Big Data to accurately assess the risk of any user worldwide on desktop and mobile browsers.
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<a href="https://www.fraudgrade.com/" rel="nofollow ugc">Fraud Detection and Prevention Services by FraudGrade</a>

FraudGrade

Protect Wordpress from hackers, bots and general bad users. Block connections from Proxies, VPN, Tor, Datacenters and blacklisted IPs and even block v …

Anti-Spam Zapper for WordPress vs FraudGrade