A plain-language explanation
Meta tags are information placed in the head section of an HTML document that describe the page to browsers, search engines and social networking sites.
Where it helps in practice
Meta tags provide page information to browsers and crawlers, but fields differ in purpose and support.
The decision before implementation
For each tag define its consumer, template owner and relationship with canonical, robots, social cards and language data.
How to verify the result
Inspect rendered HTML, duplicates, conflicting directives and CMS overrides after publication.
