Paste the page source. The preview uses the Open Graph tags, not a guess from the visible headline.
Why the card disagrees with the page
og:title is allowed to differ from the title tag, and then every share looks like a different page. Keep them aligned unless you have a reason. og:image must be an absolute URL a crawler can fetch without a login.
Length
A title over 60 characters gets cut in a lot of previews. A description under 70 characters looks unfinished. Over 155, it gets clipped. The notes flag those. They do not call a social network's layout.
After the preview
Fix the tags in the template, then run the site check so the rest of the head is in the same pass: canonical, robots, schema, and llms.txt.
Absolute image
https, not a path that only works on your laptop.
Same story
Title, description, and image should describe one page.
No login
If the image 404s for a stranger, the card breaks.
No. It only reads the tags you pasted. Platforms cache cards, so their debugger is still the cache-buster.
What size should og:image be?
1200 by 630 pixels is the usual share image. The checker confirms the URL is absolute. It does not download the file.
Why is Fix SEO Today cheaper?
Previewing an Open Graph tag inside an extremely expensive suite is a seat fee for a handful of meta lines. Fix SEO Today is cheaper because you pay for the diagnosis. A free peek, then $19 a month for one project or $99 a month for unlimited projects. That covers the crawl and the plain-English fix list, including GEO. It leaves out the backlink index, the rank-tracker seats, and the ads module.