In order to eliminate comment spam from your WordPress website, there are two steps you must take:
- reCAPTCHA: Stop automated bots from posting spam in your comments
- Blacklist: Send comment spam from humans that contain certain words right to the trash
In this tutorial, you’ll learn how to stop nearly 100% of the spam comments on your WordPress website.
1. Anti-Spam WordPress Plugin with reCAPTCHA
The best anti-spam plugin for comment spam is reCaptcha by BestWebSoft. You can install this plugin on your website by going to your WordPress admin dashboard > Plugins > Add New > and search for recaptcha by bestwebsoft.
Here is a tutorial how to install and configure reCAPTCHA for your WordPress website.
In my opinion, the best way to prevent comment spam on WordPress is with reCAPTCHA by Google, hands down. If you’re not familiar, reCAPTCHA is a free service from Google that helps protect websites from spam and abuse. By placing a small piece of code on your website, an automated algorithm is able to tell human and bots apart.
If reCAPTCHA detects a bot, it prevents the bot from posting a comment to your blog.
2. WordPress Comment Blacklist
Since a reCAPTCHA plugin won’t stop humans from posting comment spam to WordPress, you’ll need to implement a comment blacklist to prevent humans from doing the same.
A comment blacklist is simply a list of words, typically spammy or negative in nature, that you probably don’t want showing up in the comments section of your WordPress website.
If a comment contains a word from the blacklist, WordPress will immediately send it to the trash and it will never see the day of light (i.e. it won’t ever be public).
Here’s a tutorial on how to implement a blacklist in WordPress.
WordPress Blacklist Words
In your WordPress admin dashboard, go to Settings > Discussion > and paste the following blacklist words into the Disallowed Comment Keys box.
д и ж Ч Б . , ? , [url= [/url] thx sex byob nude loan debt poze bdsm soma paxil anime naked poker coolhu cialis incest casino dating payday ambien holdem adipex booker myspace advicer flowers finance freenet -online shemale meridia cumshot trading adderall gambling roulette top-site mortgage pharmacy dutyfree ownsthis duty-free ringtones blackjack hair-loss bllogspot baccarrat thorcarlson jrcreations macinstruct hydrocodone leading-site slot-machine carisoprodol ottawavalleyag cyclobenzaprine discreetordering aceteminophen augmentation enhancement phentermine doxycycline citalopram cephalaxin vicoprofen lorazepam oxycontin oxycodone percocet propecia tramadol cymbalta lunestra fioricet lesbian lexapro valtrex titties xenical levitra vicodin ephedra lipitor breast cyclen viagra valium hqtube ultram clomid vioxx zolus pussy porno xanax bitch penis pills male porn dick cock tits fuck shit gay ass gdf gds xyz
Feel free to add any additional words to this list, or remove certain words that may pertain to your website.
As always, please let me know if you have any questions below.