SwiftNinjaPro

<p>This plugin blocks non-admin users from using inspect element, while still allowing access those with manage_options permission.<br />
The plugin also blocks some of the common keys(f12, ect.) and optionally can block right-clicks for non-admin users.<br />
Admins are unaffected by the plugin entirely. This plugin is also able to block users who open developer tools on another site, before visiting your site.</p>
<p>Version 3.0 update</p>
<p>This plugin is now fast and accurate, and should work on most browsers.<br />
This plugin can detect the browser console based on lag increased by opening the console. This detection is tough for a browser to prevent or get around.<br />
The detection runs fast, and has some resistance to lag spikes.</p>
<p>Lag detection does mean your site needs to have ok performance, but when testing it, I could play 10 of 10 youtube videos all at once without a false positive.<br />
During my tests, detection was still within the second I open dev tools, and successful if I go to the page with it already open.<br />
I tested this in chrome, firefox, and chromium.<br />
I also tested this on my somewhat slow website with tons of wordpress plugins installed (and the 10 videos at once test) without false positives.</p>


Developer Tools Blocker

This plugin blocks non-admin users from using inspect element, while still allowing access those with manage_options permission.

ValidBot

<p>ValidBot is a website validation tool that combines many different tests into one comprehensive audit.  Make sure that your website is following best practices and is safe, secure, fast and effective. There are over 100 individual tests with plans to add more in the near future. Test your domain registration, DNS records, SSL, lighthouse tests, server response headers, meta tags, email authentication (SPF, DKIM, DMARC), Favicons, robots.txt file and more.</p>
<p>ValidBot can proactively monitor your website and notify you if any of our tests start failing. If your domain name or SSL are about to expire, we’ll let you know before it’s too late. If your site starts loading slowly or if a DNS record gets misconfigured, you can get notified.</p>
<h4>Features</h4>
<ul>
<li>If your server settings are misconfigured, your website may be broken for a segment of your users. It may be subtle, but it makes a difference. Learn how to fix this.</li>
<li>If your website isn’t optimized, it may load slowly. Slow pages annoy users and cause them to abandon your site. Learn how to speed up your site.</li>
<li>If your email settings are incorrect, your newsletters may suffer from deliverability issues. Learn how to improve this and reach your entire audience.</li>
<li>If your icons, server files or meta tags are set incorrectly, your website may not appear correctly in search engines and social media. Learn how to improve your SEO and get a wider reach.</li>
</ul>
<h4>Usage</h4>
<p>Once you install this plugin, a new menu item will appear in the left toolbar of your WordPress admin console. From here you can setup your account and run your first report.  View the results of your report directly in your WordPress admin console and learn about improvements that you can make.</p>
<h4>Privacy</h4>
<p>This plugin does not:<br />
– collect any of your user’s information<br />
– set any cookies</p>


ValidBot – Validate Your Website

Validate a website to ensure it follows best practices for security, performance and effectiveness.

Developer Tools Blocker vs ValidBot – Validate Your Website