When convenient
Your site has no sitemap
This is the exact wording EverThread uses when it finds this on a customer's site, written for someone who runs a business, not a server. The example site here is yourbakery.com.
What we saw
We could not find sitemap.xml.
Why it matters
Not a security issue. Search engines find and refresh your pages faster with one.
How to fix it
Most website platforms can generate a sitemap with one setting. Ask your developer to turn it on.
For your developer
GET /sitemap.xml returned 404. Generate one and reference it from robots.txt.