You can now use this plugin to increase your SEO! The GHTime service now provides a link back to your blog whenever a new code is created. Since all the GHTime codes are indexed with Google, this will provide crucial backlinks to your site which will increase your rankings on Google and other search engines. 
This plugin is essential for anyone wishing to protect their intellectual property. 
The Wp to GHTime plugin allows you to protect your intellectual property by using a <a href="http://www.ghti.me" rel="nofollow ugc">GHTime</a> Data Protector Code to timestamp each post for you. The GHTime code is displayed at the bottom of each post and can be verified by clicking on the code. 
Each code is unique and provides proof that the information contained in each of your blog posts belongs to you.

WP to GHTime

Increases your SEO and Google rankings by providing links back to your blog. Protects your intellectual property by using a GHTime Data Protector Code …

Arya Dhiratara

A lightweight plugin to make your site more SEO Friendly. This plugin provides SEO features that are really matters to optimize your site’s SEO in a non-intrusive way.
<h3>Features</h3>
<ul>
<li>Meta Description (This plugin use the built-in WordPress excerpt function to get all description metas. So you can simply use the excerpt box if you want to customize the output)</li>
<li>Social Media Meta Tags (Open Graph protocol)
<ul>
<li>Set default Facebook Image</li>
<li>Set default Twitter Image 
(by default, all social media images will get the featured image first. If the entry does not have a featured image, it will use these images as a fallback. if you leave this blank, the plugin will try to get the first image from each entry)</li>
</ul>
</li>
<li>Structured Data (Schema) Markup (JSON-LD)
<ul>
<li>Organization Schema</li>
<li>Local Business Schema</li>
<li>Sitelinks Search Box Schema</li>
<li>Breadcrumbs Schema</li>
<li>Article Schema</li>
<li>Product Schema for Shop & Product Category Page – Add Product Schema with offer and ratings to Shop & Product Category Page (this option only appear if you use WooCommerce, useful if you enable ratings for your products)</li>
<li>Custom JSON Schema – Utilize WordPress native post meta fields to add custom JSON Schema. Simply add new “jsonScript” to the name field and add the JSON schema markup to the value field. You can add custom JSON schema markup as many as you like in each page/post since this using <code>foreach</code>.</li>
<li>Custom Title for Search Engine and Social Media – Utilize WordPress native post meta fields to use different titles for search engines & social media. Simply add new post meta field named “seoTitle” for search engine title, “twitterTitle” for twitter title, and/or “ogTitle” for other social media titles, then add the custom title to the value field.</li>
</ul>
</li>
<li>Sitemap – Utilize the built-in WordPress sitemap features. Use this plugin to control / configure:
<ul>
<li>The sitemap index url</li>
<li>Remove posts / pages / products / taxonomies / any registered custom post types globally from the sitemap</li>
<li>Remove Users (globally) from the sitemap</li>
<li>Remove each entries individually from each entries edit screen</li>
<li>Add attachments (image / video) to the sitemap</li>
</ul>
</li>
<li>Change your Robots.txt Content – Easily customize you robots.txt content using the provided textarea.</li>
<li>Image Alt Tags – Add empty image alt tags with title.</li>
<li>Disable Feeds – Disable WordPress Feeds to prevent scrappers from duplicating your content.</li>
<li>Works well with WooCommerce.</li>
</ul>
<h3>Disclaimer</h3>
<ul>
<li>As the plugin name says, you will not find any non-matter features for SEO in this plugin.</li>
<li>This plugin was built by prioritizing the use of built-in WordPress features.</li>
<li>Still not tested thoroughly in FSE themes.</li>
<li>Still not tested in multisites websites.</li>
</ul>
<h3>Found any issues?</h3>
Please use this <a href="https://wordpress.org/support/plugin/seo-that-matters/" rel="ugc">support forum</a> to report it.
<h3>Check out my other plugins:</h3>
<ul>
<li><a href="https://wordpress.org/plugins/optimize-more/" rel="ugc">Optimize More!</a> – A DIY WordPress Page Speed Optimization Pack.</li>
<li><a href="https://wordpress.org/plugins/optimize-more-images/" rel="ugc">Optimize More! Images</a> – A simple yet powerfull image, iframe, and video optimization plugin.</li>
<li><a href="https://wordpress.org/plugins/lazyload-preload-and-more/" rel="ugc">Lazyload, Preload, and more!</a> – This tiny little plugin (around 14kb zipped) is a simplified version of Optimize More! Images. Able to do what Optimize More! Images can do but without UI for settings (you can customize the default settings using filters).</li>
<li><a href="https://wordpress.org/plugins/shop-extra/" rel="ugc">Shop Extra</a> – A lightweight plugin to enhance your WooCommerce & Business site.</li>
<li><a href="https://wordpress.org/plugins/image-video-lightbox/" rel="ugc">Image & Video Lightbox</a> – A lightweight plugin that will automatically adds Lightbox functionality to images.</li>
<li><a href="https://wordpress.org/plugins/animate-on-scroll/" rel="ugc">Animate on Scroll</a> – Animate any Elements on scroll using the popular AOS JS library simply by adding class names.</li>
</ul>

SEO that Matters

A lightweight plugin to make your site more SEO (and Social Media) Friendly in a non-intrusive way.

WP to GHTime vs SEO that Matters