Dmitry Mayorov

With this plugin you can safely change your theme without worrying to loose the code you’ve added.

Insert Code Lite

Insert Code Lite lets you add scripts, styles, and other custom code to your website.

oktopost

Oktopost’s WordPress plugin allows Oktopost customers to install the Oktopost tracking code on their WordPress websites and blogs.
About the code
<ul>
<li>The code is loaded asynchronously, so it won’t slow down your site</li>
<li>We automatically use https when appropriate</li>
<li>The code can be used across multiple websites and subdomains</li>
</ul>

Oktopost Tracking Code

This plugin allows you to install the Oktopost tracking code on your WordPress website.

Insert Code Lite vs Oktopost Tracking Code