stoxello

Stoxello SEO Toolkit gives site owners a focused set of search optimization controls for posts, pages, public custom post types, and site-wide SEO defaults.
Plugin page: https://stoxello.com/platforms/stoxello-seo-toolkit/
Features include:
<ul>
<li>Per-post SEO title and meta description fields.</li>
<li>Search preview and lightweight SEO checks in the editor.</li>
<li>Focus keyphrase checks for title and description coverage.</li>
<li>Canonical URL controls.</li>
<li>Per-post noindex and nofollow controls.</li>
<li>Open Graph and Twitter card output.</li>
<li>Organization, WebSite, WebPage, Article, BlogPosting, Product, SoftwareApplication, FAQPage, and breadcrumb JSON-LD output.</li>
<li>Site-wide defaults for organization name, logo, and social image.</li>
<li>XML sitemap at <code>/stoxello-seo-sitemap.xml</code>.</li>
<li>Automatic sitemap discovery in <code>robots.txt</code>.</li>
<li>Google and Bing webmaster verification tags.</li>
<li>Breadcrumb shortcode: <code>[stoxello_breadcrumbs]</code>.</li>
<li>WordPress media selector for the organization logo.</li>
<li>Title separator control.</li>
<li>Author and date archive noindex controls.</li>
<li>Attachment page redirects.</li>
<li>Optional taxonomy URLs in the XML sitemap.</li>
</ul>
All included features are available immediately in this WordPress.org plugin.

Stoxello SEO Toolkit

Focused SEO controls for WordPress content, social previews, schema, robots rules, canonicals, breadcrumbs, and sitemaps.

Harsh Agrawal

Content syndication is a process of amplifying your content to other blogs without hurting the SEO of your original content. You can let other blogs to republish your content in exact format with rel=canonical tag.
You can read about Rel=canonical tag here at pt.4: https://support.google.com/webmasters/answer/139066?hl=en
In this guide you can learn everything about using content syndication for content marketing: http://www.shoutmeloud.com/relcanonical-wordpresss-content-syndication-seo.html
Canonical SEO Content syndication plugin adds a meta box at post editor section. You can add permalink of post where the content was originally published. Popular blogs like bufferblog, readwriteweb are taking advantage of content syndication and rel=canonical tags.

Canonical SEO Content Syndication WordPress Plugin

Canonical SEO Content syndication plugin adds rel=canonical tag for content syndication. The meta box is added at edit post section.

Stoxello SEO Toolkit vs Canonical SEO Content Syndication WordPress Plugin