Content strategy
Topics your buyers actually research
- Understand
Stage 2: Understand
Social preview
Reads the Open Graph and X card tags for one page, draws them in two plain card shapes and checks that the preview image loads.
Free to use. No login, nothing stored.
What it checks
Understand- The four properties ogp.me lists as required: og:title, og:type, og:image, og:url
- og:image is a full URL, has alt text and declared dimensions, and answers with an image content type
- twitter:card present, and which card shape it names
- og:title against <title>, og:description against the meta description, og:url against the canonical
- og:locale, repeated og:image tags, and a corrected tag snippet to copy
Method question for this stage: Do machines know what each page and brand is?
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Results
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- Info
Two plain card shapes, then one row per rule
An Open Graph card and an X card drawn from the tags, then: the four required og:* properties, og:description, a full image URL, image alt and dimensions, the image’s HTTP status and content type, twitter:card, og:title against <title>, og:description against the meta description, og:url against the canonical, og:locale and repeated og:image tags.
Rows for X carry no source link: X’s cards markup documentation could not be reached when this tool was built, so no X length limit or fallback rule is tested. Open Graph rows cite ogp.me. Stage 2 of the method.
How we check
The rules this tool tests, and where they come from
A result is a check against a published rule, not a prediction. Every row shows its working.
Rules and sources
Links go to the operator's or standards body's own documentation. We do not link to third-party summaries.
Read more
Next step
Fix what it finds
This check belongs to the Understand stage of the Crawl-to-Citation Method. The service below covers the fix; the Diagnostic ranks it against everything else.
Most engagements start with the Search Visibility Diagnostic ($2,500).
It covers all six method stages, so what this tool finds is ranked against everything else before you commit to any work.
Book the diagnosticSocial tag questions
What the cards and rows mean, and where the rules come from.
Still have questions? Book a callWhy can the preview here differ from what a platform shows?
Each platform fetches the page with its own crawler, applies its own fallbacks, crops or resizes the image to its own layout, and caches the result, often for days. This tool reads the tags from the server HTML once and draws them in two plain shapes, so it shows what you are offering, not what any platform has stored. After a change, use the platform’s own debugging tool where it offers one to refresh its cache and see its rendering.
Do Open Graph or X card tags affect Google ranking?
Google documents no ranking use of Open Graph or X card tags. Its title link documentation (linked under "Rules and sources" above) does list og:title among the sources it may draw a title link from, alongside the <title> element, headings and other page text, so a very different og:title can compete with your <title>. Beyond that, these tags are read by link-preview fetchers, which is a different job from ranking.
What image size should og:image be?
ogp.me sets no size; it defines og:image as an image URL and gives og:image:width and og:image:height as optional properties to declare the dimensions. Each platform publishes its own recommended sizes and aspect ratios and changes them over time, so this tool does not test a size. It reports the dimensions you declare and whether the address answers with an image content type, and leaves the size to the platform’s documentation.
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