postgresql.org

Crawlers are welcome here: a sitemap points the way, links work, and pages are allowed into the index.

Pages load quickly, and the server answers fast.

Every visit is encrypted, and the headers that keep it that way are in place.

URLs are mostly in order; what remains is giving every page one settled address and making missing pages answer as missing.

Pages say enough to be useful, in plain language, and stay on the topic their titles promise.

Images are described in text, and pages link to each other with links that say where they go.

Each page has one main heading, with subheadings in a sensible order beneath it.

Titles and descriptions are thin, repeated across pages, or missing, so search results have little to show for each page.

Pages open with a short summary and use lists and tables, so an engine can lift the facts without reading everything.

Pages carry no structured data, so nothing tells an engine what each one is; marking up the page type, and the site's name, is the first step here.

Some headings are questions with an answer beneath them; more of them, each followed by a short direct answer, is what an answer engine lifts.

Pages give no sign of where they sit in the site; a breadcrumb trail on interior pages, in text and in markup, is the fix.

AI crawlers are allowed in, and pages may be quoted in AI answers.

Little here says who is behind the site, in the markup or on the pages themselves.

Most content is readable without running scripts, but some pages arrive thin, or the content is not clearly marked out from the furniture around it.

Articles rarely say who wrote them or when, and pages rarely link out to sources, which gives an AI little reason to trust them.

Plenty of other sites link here, including ones that matter.

The site has a large audience.

The domain has a long history, and history counts.

The site barely points to its presence on other platforms; linking its profiles from the site connects the two.