WalletStation

This plugin allows you to create code generators for Xbox Live codes, Amazon codes, Minecraft codes, etc. In order for a 
user to obtain a code, they must go to a url, that your provide, to obtain a password. Once they obtain a password, they enter 
it in the generator to get a code.
Features 
-Create unlimited generators.
-Create unlimited codes.
-Create unlimited URLs.
-URLs are randomized.
-Each generator has its own style.
-Generators can be added on posts or pages.
-Codes can only be accessed by one person at a time. A code becomes active once one of its URLs are accessed. If a password isn’t entered, the code becomes non-active in an hour.
-Once a password is entered, the code and its URLs are deleted.

Code Generator Pro

Eric-Oliver Mächler

XML Sitemap creates an XML for use with Google and Yahoo (and Yes! Bing too) 
Just install it to your wordpress installation and let the plugin do his job.
For start: create or update any Post or Pages and your WordPress will create your sitemap.xml right away
<h4>Features</h4>
You can exclude certain posts or pages or woocommerce produts from the xml sitemap. 
You can set your own sitemap Value to each Post, Page or Product Page.
<h4>Languages</h4>
<ul>
<li>Englisch</li>
<li>German</li>
</ul>

Simple XML Sitemap Generator

Der beste XML-Site-Generator, den ich bisher gefunden habe. Installieren, und die Seite: sitemap.xml aufrufen - ab zur Search Console und eintragen.

The best XML site generator I've ever found.

Code Generator Pro vs Simple XML Sitemap Generator