rodhomor

Omit certain pages from being crawled by SEO robots to preserve your SEO juju by adding the robots “noindex, follow” meta tag.
Pages where the robots meta tags will be inserted have URL structures like:
<ul>
<li>“www.domain.com/news/page/2”</li>
<li>“www.domain.com/events/page/4”</li>
<li>“www.domain.com/tag/movies/”</li>
<li>“www.domain.com/category/comedy/”</li>
<li>etc…</li>
</ul>

Robots “noindex,follow” meta tag

Add robots "noindex,follow" meta tags to archives, tag pages and category pages in order to preserve your SEO juju.

CongBom

Generate most common meta tags to your WordPress site.
Open Graph (og) tag via post content and featured image:
<pre><code><meta property="og:url" content="..." />
<meta property="og:type" content="..." />
<meta property="og:title"content="..." />
<meta property="og:description" content="..." />
<meta property="og:image" content="..." />
</code></pre>
Meta description tag via post content or excerpt:
<pre><code><meta name="description" content="..." />
</code></pre>

Meta Tags Generator

It assumes that the theme's screenshot is in .png format. For smaller file size reason, I prefer using .jpg images for my theme's screenshots.

To set the record straight, .png is the preferred format, although other image formats are allowed. This is a direct quote from the Codex pages:

"Note that optionally, .jpg, .jpeg, and .gif are also valid extensions and file formats for the screenshot (though not recommended)." 

Other than that, this plugin is refreshingly small in size, and that's a good thing.

Almost there!

Automatic generate meta tags. Let your WordPress site optimize with Search engine & Social sharing.

Robots “noindex,follow” meta tag vs Meta Tags Generator