sdesalas

This plugin allows WordPress to block over 95% of spam comments using a time-based hash.
This allows for a minimum sanity check and yet should remove almost all spam comments 
without the need to sign up to any third party APIs.
The plugin has been tested in real world conditions for around 12 months. It will not block 
real comments and it is pretty effective against spam, however it only uses a very simple 
algorithm and for that reason some spam comments may still make it through.

WP Simple SpamCheck

This plugin allows WordPress to block over 95% of spam comments using a time-based hash.

ArtistScope

Copy protect images, PDF and video – anything displayed on a web page. No other WordPress plugin can protect from all methods of copy and save because they cannot interact at system level which is where copy needs to be actioned. JavaScript and HTML are useless for all round protection. The difference is that CopySafe plugins do not try to prevent copy – but instead they provide the interface for using a more robust solution that can action at systerm level via the <a href="https://artisbrowser.com/download/" rel="nofollow ugc">ArtisBrowser</a>.
Insert a <a href="https://artistscope.com/copysafe_web_protection.asp" rel="nofollow ugc">CopySafe Web</a> encrypted images to copy protect all media including image, PDF and video from ALL methods of copy including <a href="https://artistscope.com/protection.asp" rel="nofollow ugc">PrintScreen and screen capture</a>. This plugin can add copy protection to any web page by simply adding a small CopySafe encrypted image.
<ul>
<li>Easy install.</li>
<li>Copy protect for all media from PrintScreen and screen capture.</li>
<li>Domain Locked images cannot be used on other websites.</li>
<li>Upload and embed CopySafe Web encrypted images using WordPress editors.</li>
<li>Ability to set varying levels of protection per page or post.</li>
<li>Control which OS/devices can access your protected pages.</li>
<li>Checks browsers for minimum version and redirects for download.</li>
<li>Add copy protection just by adding a 20 x 20 pixel image.</li>
<li>Fully supported in ArtisBrowser on all OS/plaforms.</li>
<li>This plugin is FREE to use.</li>
<li>The CopySafe Web Converter software is also FREE to use.</li>
<li>Images stored online are safe from employees and hosting staff.</li>
<li>Requires the Classic Editor.</li>
</ul>
The use of CopySafe Web <a href="https://artistscope.com/copysafe_web_protection.asp" rel="nofollow ugc">encrypted images</a> is the most secure image protection solution because those images acan be <a href="https://artistscope.com/copysafe_web_protection.asp" rel="nofollow ugc">domain locked</a> to prevent them from be used on other websites. Domain Locked images are safe from employess and even web hosting staff.
<iframe loading="lazy" class="youtube-player" width="750" height="422" src="https://www.youtube.com/embed/zG6EJGGsw8k?version=3&rel=1&showsearch=0&showinfo=1&iv_load_policy=1&fs=1&hl=en-US&autohide=2&wmode=transparent" allowfullscreen="true" style="border:0;" sandbox="allow-scripts allow-same-origin allow-popups allow-presentation allow-popups-to-escape-sandbox"></iframe>
How it works
CopySafe Web uses a secure web browser known as <a href="https://artisbrowser.com/download/" rel="nofollow ugc">ArtisBrowser</a> which has been especially designed to copy protect web pages where all other web browsers fail.
When a visitor loads a CopySafe Web <a href="https://artistscope.com/copysafe_web_protection.asp" rel="nofollow ugc">copy protected page</a> their browser is checked for the ArtisBrowser, and if not found, they are redirected to a download page. After installing the ArtisBrowser, the visitor can return to explore your protected web pages.
More information and online demos protecting a variety of different media can be seen at the <a href="https://artistscope.com/copysafe_web_protection.asp" rel="nofollow ugc">CopySafe Web Protection</a> website.
You can see this plugin and our other WP copy protection plugins in action on our <a href="https://wordpress.artistscope.com" rel="nofollow ugc">WordPress demo site</a>.
Implementation
Note: that the WP Classic Editor is required.
Click on the [C] button in the Editor’s toolbar to upload/select and the encrypted image to use. When inserting a CopySafe Web image, the necessary shortcode is automatically inserted at the last cursor postion.
You can upload new image .class files or select from a list of already uploaded .class files. After selecting an image (.class) file you can then set the security options to apply to the page such as:
<ul>
<li>Enable or disable protection from PrintScreen and screen capture</li>
<li>Enable or disable the option viewing by computers using remote or virtual connections</li>
<li>Enable or disable use of browser menus</li>
<li>Enable or disable use of the keyboard</li>
</ul>
For more information visit the <a href="https://artistscope.com/copysafe_web_protection_wordpress_plugin.asp" rel="nofollow ugc">CopySafe Web Protection</a> plugin page at ArtistScope.
<h4>More Info</h4>
<ul>
<li>About <a href="https://artistscope.com/copy-protection.asp" rel="nofollow ugc">Copy Protection</a></li>
</ul>
<h3>About</h3>
About CopySafe Web
<ul>
<li>CopySafe Web is the most secure copy protection for web pages.</li>
<li>The CopySafe Web plugin is a free download to the public.</li>
<li>When Domain Locked, images cannot be used on other websites.</li>
<li>When a CopySafe Web image loads, copy protection is activated.</li>
<li>All media can be protected by using only a tiny encrypted image.</li>
</ul>
Limitations
<ul>
<li>CopySafe Web is supported on all Windows computers by using the ArtisBrowser. Support for Artisbrowser on other OS/devices will be avilable very soon. In the meantime CopySase Web will be ideal for corporate networks that use WordPress.</li>
</ul>
Licensing benefits
<ul>
<li>Unlimited use.</li>
<li>Domain Lock for up to 5 websites.</li>
<li>Domain Locked images cannot be used away from the owner’s website.</li>
<li>Domain Locked images are safe from employees and web hosting staff.</li>
</ul>
Alternatives
CopySafe Web is the most secure copy protection solutions for “images” and while it can prevent copy for all other media displayed on a web page, other solutions are available that may be better suited for other media, such as <a href="https://artistscope.com/copysafe_pdf_protection.asp" rel="nofollow ugc">CopySafe PDF Protection</a> is specially designed for PDF documents, and <a href="https://artistscope.com/copysafe_video_protection.asp" rel="nofollow ugc">CopySafe Video Protection</a> is for videos in MP4 format.

CopySafe Web Protection – Copy Protect Images

Ideal

Copy protect images and web pages. Add encrypted images to copy protect pages from PrintScreen and screen capture.

WP Simple SpamCheck vs CopySafe Web Protection – Copy Protect Images