an alphabetical list of words relating to a specific subject, text, or dialect.

Google Search Console

Google Search Console is a no-charge web service by Google for webmasters. It allows webmasters to check indexing status and optimize visibility of their websites.

As of May 20, 2015, Google rebranded Google Webmaster Tools as Google Search Console. It shows you crawl errors, 404 pages, duplicate title & meta descriptions, links to your site and indexed pages of your site.