Comment blacklisting works well, but what if you actually want to stop someone from even reading your blog? This plugin will take care of that for you.
It uses .htaccess file modifications to deny access to your blog from particular IP addresses (Deny from) and then follows up with an ErrorDocument 403 redirect to a URL of your choice. It doesn’t hook into WordPress, which makes it a lot faster due to no database or PHP calls.

WP-BlockYou

A plugin that can be used to block or "ban" users via their IP address from viewing your blog, and then redirecting them to a URL of your ch …

Trusted Accounts

Stop bots and scrapers without affecting real visitors.
Atmosvere protects your WordPress pages in the background. Each request is checked (allow / challenge / block, typically under 50 ms) — we stop bots before they even reach your site, so you get effective bot, scraper & spam protection without CAPTCHAs. On the page, our SDK sends behaviour data for additional real-time security. Works for anonymous traffic and for logged-in users.
Try the Admin Panel without installing: <a href="https://admin.atmosvere.eu/home?demo=true" rel="nofollow ugc">Admin Panel Demo</a>
Use the code EARLY-WORDPRESS-BIRD at checkout — Get 3 months free on the Starter suite. Limited to the first 50 early birds. <a href="https://admin.atmosvere.eu/register" rel="nofollow ugc">Get started at Atmosvere →</a>
<h4>What Makes Atmosvere Special?</h4>
<ul>
<li>Invisible to Real Users – Protection runs in the background; no annoying CAPTCHAs or steps for legitimate users</li>
<li>Request + Behaviour – Request check before the page loads (under 50 ms); real-time behaviour data on the page</li>
<li>Bot, Scraper & Spam Protection – Block or challenge bots, scrapers and abusive traffic before they reach your site</li>
<li>Account Protection – Detect fake accounts and suspicious user behaviour to support safer communities and logins</li>
<li>Marketing Protection – Reduce fake clicks, invalid leads and low-quality traffic so growth decisions are based on real users</li>
<li>Admin Panel – Deep insights into bots and scrapers on your site; Advanced Crawler Management</li>
<li>Works for Everyone – Guests and logged-in users; for communities, distinguish real vs. fake users</li>
<li>Easy Integration – Works with any WordPress theme; simple setup with API keys</li>
</ul>
<h4>Product Coverage</h4>
Atmosvere for WordPress supports use cases across all three Atmosvere product areas:
<ul>
<li>Bot Shield – Block bots, scrapers and automated abuse on pages and endpoints</li>
<li>Account Shield – Strengthen user trust with fake-account detection and user risk signals</li>
<li>Marketing Shield – Improve traffic quality by filtering suspicious clicks, visits and lead activity</li>
</ul>

Atmosvere (Formerly Trusted Accounts) for WordPress

Protect your pages from bots, scrapers and spam — fully in the background and invisible to visitors. We stop bad visitors before they reach your site.

WP-BlockYou vs Atmosvere (Formerly Trusted Accounts) for WordPress