CheckBot — simple one-click captcha-plugin created for people. It is very easy to use, and look nice, but at the same time, fully customizable, and quite seriously protect your blog from spam.
<h4>Features</h4>
<ul>
<li>Antispam: The plugin uses javascript and randomly generates identifiers and field names, which allows the plugin to automatically filter out fine sent spam.</li>
<li>Support languages: The plugin supports Russian and English languages.</li>
<li>Fully customizable appearance.</li>
<li>The plugin can be used immediately after installation, without additional configuration.</li>
<li>You can configure the output plugin yourself anywhere on the page comments.</li>
<li>If the user is not the correct picture, or even forgot to select it, the plugin will tell him about it, and, just in case it will write a comment.</li>
</ul>
<h3>Help</h3>
You may ask questions at the plugin page – <a href="http://deadblog.ru/checkbot" rel="nofollow ugc">http://deadblog.ru/checkbot/</a>, or write me e-mail – lifeiscoming@gmail.com.

CheckBot

This antispam plugin provides very simple(one-click) and powerful captcha for your blog.

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.

CheckBot vs Atmosvere (Formerly Trusted Accounts) for WordPress