WordPress.org

Add-Meta-Tags adds metadata to your content, including the basic description and keywords meta tags, Opengraph and Dublin Core metadata. It is actively maintained since 2006 (historical Add-Meta-Tags home).

Metadata refers to information that describes the content in a machine-friendly way. Search engines and other online services use this metadata to better understand your content. Keep in mind that metadata itself does not automatically make your blog rank better. For this to happen the content is still required to meet various quality standards. However, the presence of accurate and adequate metadata gives search engines and other services the chance to make less guesses about your content, index and categorize it better and, eventually, deliver it to an audience that finds it useful. Good metadata facilitates this process and thus plays a significant role in achieving better rankings. This is what the Add-Meta-Tags plugin does.

The following list outlines how and where metadata is added to a WordPress blog.

Basic meta tags

The description and keywords meta tags are added:

• Front Page
  • Automatically.
  • Customization is possible through the plugin's configuration panel.
• Single Posts
  • Automatically.
  • Customization of the description META tag:
  • either by setting an excerpt in the post's edit panel
  • or by setting a custom description in the Metadata meta box in the post editing panel. (overrides the custom excerpt).
  • Customization of the keywords META tag is possible by setting a custom list of keywords in the Metadata meta box in the post editing panel.
• Pages
  • Automatically (description only - no automatic keywords).
  • Customization of the description meta tag is possible by setting a custom description in the Metadata meta box in the page editing panel.
  • Setting a keywords meta tag is possible by setting a custom list of keywords in the Metadata meta box in the post editing panel.
• Attachment Pages
  • A 'description' metatag is automatically generated from the caption or, if a caption has not been set, from the description of the attachment.
• Custom Post Types
  • Automatically (description only - no automatic keywords) from the first paragraph of the content.
  • Custom description and keywords by setting a description and a keywords list in the Metadata meta box in the post editing panel.
• Category-based Archives
  • The description of the category, if set, is used for the description meta tag. The name of the category is always used at the keywords metatag.
• Tag-based Archives
  • The description of the tag, if set, is used for the description meta tag. The name of the tag is always used at the keywords metatag.
• Site-wide META Tags
  • It is possible to add any metatags on all content.
• Global keywords (since 2.1.0)
  • It is possible to set some keywords that are prepended/appended to the keywords of all your content.
• Head link to copyright page.
• Default image to use in metadata, if a featured image has not been set.

Custom title tag

It is possible to customize the title tag for posts, pages and any public custom post type.

'news_keywords' meta tag

It is possible to set a news_keywords meta tag for posts, pages and any public custom post type. For more info about the <emnews_keywords meta tag, please see this Google help page.

Per post full meta tags

It is possible to assign custom full meta tags to single posts (posts, pages, custom post types).

Opengraph metadata

• Front page
  • Automatic addition of metadata.
  • Supports custom default image if URL is provided.
• Posts and Pages
  • Automatic addition of metadata.
  • Use featured image or alternatively the default image if URL has been set.

Dublin Core metadata

• Posts and Pages
  • Automatic addition of metadata.

Extra SEO features

• Add the NOODP,NOYDIR option to the robots meta tag.
• Add the NOINDEX,FOLLOW options to the robots meta tag on category, tag, author or time based archives and search results.

Languages

Add-Meta-Tags is available in the following languages:

• English (default language)
• Slovak (sk_SK) - contributed by Branco from WebHostingGeeks.com

More

Check out other open source software by George Notaras.