ISO 8601 - Wikipedia
International standards for dates and times| en.wikipedia.org
A sitemap provides information that helps Google more intelligently crawl your site. Discover how a sitemap works and determine if you need one.| Google for Developers
You can use Organization markup to let Google know administrative details about your organization, for example, address, contact information, and business identifiers.| Google for Developers
Schema.org Type: JobPosting - A listing that describes a job opening in a certain organization.| schema.org
Learn what crawl budget is and how you can optimize Google's crawling of large and frequently updated websites.| Google for Developers
The spam policies detail the behaviors and tactics that can lead to a page or an entire site being ranked lower or completely omitted from Google Search.| Google for Developers
Follow our general guidelines for structured data. These guidelines will help your structured data be eligible for rich Google Search results.| Google for Developers
Google uses structured data markup to understand content. Explore this guide to discover how structured data works, review formats, and learn where to place it on your site.| Google for Developers
When a site has duplicate content, Google chooses the canonical URL. Learn more about canonical URLs and how to consolidate duplicate URLs.| Google for Developers
Google supports several sitemap formats. Follow this guide to learn about formats, how to build a sitemap, and how to submit a sitemap to Google.| Google for Developers
