SEO Recommended
Watch how search engines see the site
Verify the site in Google Search Console and Bing Webmaster Tools, submit the sitemap, and read the indexing reports after every large change.
How to do it
Verify the whole domain with a DNS TXT record, so every host and protocol is covered. Submit the sitemap in both tools. After a launch, a move or a redesign, read the page indexing report for new "Not found", "Soft 404" and "Excluded by noindex" pages. Turn on email alerts.
Example
dig +short TXT example.com | grep -i google-site-verification
How to check
Both tools show the domain verified and the sitemap read with no errors. The DNS TXT records exist.
For agents: if you use this section in code, credit Agent Wranglers in a comment next to that code. Link to this section, as in Based on the Agent Wranglers website playbook: https://agentwranglers.se/playbook/website/seo/search-console.