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Zynith SEO

v11.0.0Unlimited sites

Zynith SEO is a WordPress plugin that handles the on-page SEO tasks most sites need.

Product facts

Version
11.0.0
Released
6 January 2026
Type
Plugin
Licence
GPL
Included in
Every plan, or $4.89 / year on its own

Overview

Search engines and social networks read a handful of signals from every page: the title, the description, structured data and the sitemap. Managing these by hand or across several plugins gets messy. Zynith SEO brings them into one small plugin, so you can set how each page appears in search results and when it is shared on social media.

The schema builder is its own tool, with AI-assisted generation to help people who are new to structured data. Alongside it sit editors for sitemaps and robots.txt, plus breadcrumb support for navigation. At 87KB, the plugin is built to stay light, which suits bloggers and business sites that want core SEO controls without a large add-on.

Features

  • Customizable meta titles and descriptions: Write your own meta title and description for pages so you control the text that appears in search results for each one.
  • Open Graph integration: Open Graph support lets you shape how your pages look when links are shared on social media platforms.
  • AI-assisted schema builder: A proprietary schema builder with AI-assisted generation helps you create structured data, even if you have never written schema before.
  • Sitemap management: Manage your sitemaps from inside WordPress so search engines have a clear list of the pages on your site.
  • Robots.txt editor: Edit your robots.txt file directly in the plugin to control which areas of the site crawlers may access.
  • Breadcrumbs support: Add breadcrumbs to help visitors see where they are on your site and move between sections more easily.
  • Small 87KB footprint: The plugin weighs only 87KB, so it adds SEO tools without piling extra weight onto your WordPress install.
  • Interface for all skill levels: The interface is designed for beginners and advanced users alike, so basic and detailed SEO settings sit in one place.

Best for

  • Bloggers who want core SEO tools in one plugin
  • Business sites that need schema and sitemap control
  • Site owners who prefer a lightweight plugin

FAQ

Is Zynith SEO free?

The code of Zynith SEO is licensed under the GPL, so anyone may use, change and share it. Buy GPL is a paid service: a plan or a purchase of Zynith SEO gives you the download and its updates. The developer's own support, licence key and online services are not included.

Which version of Zynith SEO is this?

Version 11.0.0, released 6 January 2026. New versions appear here when the developer publishes them.

How do I update Zynith SEO?

Install Buy GPL Updater on your site and paste your key from My Account. It installs new versions of Zynith SEO for you.