Html5

header tags

• application-name
• author
• description
• generator Hugo inserts <meta name="generator" content="Hugo 0.122.0">
• keywords
• referrer
• theme-color
• color-scheme

https://www.dublincore.org/specifications/dublin-core/dc-html/

Using lighthouse output, these are what Google considers important:

• Has a <meta name="viewport"> tag with width or initial-scale +34m
• The document does not use <meta http-equiv="refresh"> +26ms
• [user-scalable="no"] is not used in the <meta name="viewport"> element and the [maximum-scale] attribute is not less than 5. +77ms
• Document has a meta description +6ms