Low impact · weight 4 · worth up to 1.3 points of the total score
Open Graph decides what a link to this page looks like when someone shares it on Slack, WhatsApp, LinkedIn, or Facebook. Missing tags turn a share into a bare URL with no image, which measurably costs clicks.
Add og:title, og:description, and og:image meta tags, with the image at least 1200x630.
Check a page for this, and the other 41 checks at once
hreflang alternates are absolute URLs
Google requires fully qualified URLs in hreflang annotations. Relative hrefs are ignored without any error, so the language targeting simply never happens and nobody notices.
Site has a reachable XML sitemap
A sitemap is the list of pages a site wants crawled. Without one Google finds pages only by following links, so new or thinly linked pages can take weeks to be discovered.
Title and H1 are related but not identical
The title is written for the search results page and the H1 for the visitor who already clicked. Making them byte-identical wastes a second chance to describe the page, while sharing no vocabulary at all suggests the two disagree about the topic.
Twitter card type is declared
Without a card type, X renders a shared link as plain text even when Open Graph tags exist. It is one line of markup that decides whether the share carries an image.
