Jake

SpotBot was created for the purpose of controlling spam before it clutters up your server. Gone are the days of constant comments about Gucci bags in broken English. SpotBot not only stops spam from comments, but also stops bots from creating fake accounts or even logging in, but the fun doesn’t stop there! A custom action has been built in so you can add it into any template to stop access to that page!
<h4>So how does it work?</h4>
Every task that starts or ends in WordPress starts with an action! SpotBot utilizes these actions, to gain control over who has access to your site! But how can it tell who’s bad and who’s good? SpotBot uses a service from BotScout to determine who the baddies are. They have allowed public access to their database through an API that SpotBot utilizes. This API access is limited though, and only allows around 300 queries to it in any 24-hour period. You could pay BotScout for more access as they’re fairly cheap, but to help them keep their costs down and help you have control over your visitors, all IP’s are logged to your database. Each time a returning IP is found, it checks the cache first and if nothing is found checks BotScout for more information. It’s as simple as that, SpotBot can be a set-it-and-forget-it plugin, but it can be more than that. Have a problem with a particular user that keeps making user accounts? Flag them as a bot! The harder they try, the more flags they generate and the higher they go on the bot score! SpotBot comes with a built in search function to make finding those troublesome bots easier than ever. Don’t want to save the IP in a list of trouble makers? Make a note of them in each IPs note section for easy searching. Can only remember the first 3 digits of the IP address? Search for it!

SpotBot

SpotBot aids in controlling spam before it clutters up your server. It stops bots in their tracks before they have a chance to post or force post.

mickmel

ashlealanier

This blocks semalt.com, buttons-for-website.com and others with a 403 Forbidden message so that they no longer show up in your Google Analytics stats. This won’t block ghost referrals (no plugin can do that), but <a href="http://www.greenmellenmedia.com/blocking-ghost-referrals-in-google-analytics/" rel="nofollow ugc">this short video</a> will walk you through that process in Google Analytics.
Once installed, this plugin will run automatically in the background; there is no options panel or anything to see in your dashboard.
Other sites will be added to the block list over time via updates to this plugin.
For more information, visit us at <a href="http://www.greenmellenmedia.com" rel="nofollow ugc">GreenMellenMedia.com</a> or find us on Twitter <a href="http://twitter.com/greenmellen" rel="nofollow ugc">@GreenMellen</a>.
Current list of blocked bots: All sites ending in .xyz, 100dollars-seo.com, 4webmasters.org, 7makemoneyonline.com, adviceforum.info, aliexpress.com, amazonaws.com, anticrawler.org, avtlg.ru, bashtel.ru, best-seo-offer.com, best-seo-solution.com, bestsub.com, bestwebsitesawards.com, blackhatworth.com, burger-imperia.com, buttons-for-website.com, buttons-for-your-website.com, buy-cheap-online.info, chinese-amezon.com, clicksor.com, copyrightclaims.org, corbina.ru, cpty.com, darodar.com, depositfiles-porn.ga, domination.ml, e-buyeasy.com, ebin.cc, econom.co, erot.co, ertelecom.ru, event-tracking.com, fix-website-errors.com, free-floating-buttons.com, floating-share-buttons.com, free-share-buttons.com, free-share-buttons.top, free-social-buttons.com, free-video-tool.com, get-free-social-traffic.com, get-free-traffic-now.com, ɢoogle.com, googlsucks.com, guardlink.com, guardlink.org, hol.es, hongfanji.com, how-to-earn-quick-money.com, howtostopreferralspam.eu, hulfingtonpost.com, hvd-store.com, ilovevitaly.*, is74.ru, kabbalah-red-bracelets.com, kambasoft.com, kes.ru, keywords-monitoring-your-success.com, lifehacĸer.com, magicdiet.gq, makemoneyonline.com, monetizationking.net, mts.ru, mts-nn.ru, nationalcablenetworks.ru, netbynet.ru, o-o-6-o-o.com, pizza-tycoon.com, pogodnyyeavarii.gq, pornhub-forum.ga, priceg.com, qualitymarketzone.com, rank-checker.online, ranking2017.ga, rankings-analytics.com, rankscanner.com, ranksonic.org/info, sanjosestartups.com, sashagreyblog.ga, savetubevideo.com, search.myway.com, search.tb.ask.com, semalt.com, seo-platform.com, sexyali.com, simple-share-buttons.com, site-16528012-1.snip.tw, site-auditor.online, sitequest.ru, snip.to, social-buttons-*, social-s-*, success-seo.com, theguardlan.com, top1-seo-service.com, torture.ml, traffic2money.com, trafficmonetizer.net, uni.me, uptime.com, video–production.com, videos-for-your-business.com, webmonetizer.net, website-analyzer.info, works.if.ua, wow.com, youporn-forum.ga, yourserverisdown.com

GM Block Bots

This blocks semalt.com, buttons-for-website.com and others with a 403 Forbidden message so that they no longer show up in your Google Analytics stats.

SpotBot vs GM Block Bots