If a link card appeared without an image, first check the page's source HTML and the image address. An image visible in the browser is not necessarily specified in the metadata. A social app uses its own method of retrieving and displaying previews.
The first layer to check
Insert the public HTTPS address into the preview check. Examine the final URL, og:title, and og:image. If there is a redirect, check the final page itself: the metadata of the original address may not determine the result.
The Boosted service reads the source HTML without executing JavaScript. A field that a site adds only after the app runs in the browser may be absent from such a response. For a site owner, the practical step is to check the server-side output of metadata and the availability of the page without logging in.
Checking the image
Open the image address separately. Make sure it is an accessible file, not an authorization page, an error, or a temporary link. In the report, the image is not loaded automatically, so the presence of a URL does not mean its content was successfully checked.
Open Graph defines the basic fields of the card, including the image address. However, the presence of markup does not make Telegram or VK display it the same way: apps may apply their own restrictions and cache.
Checking in the target app
Send the exact link to your test chat or a draft on the chosen platform. If everything is fine in one app but there is no image in another, save the date, URL, and observation. Do not promise a fix within a fixed number of minutes: each service has its own crawling and refresh.
The Boosted check is limited to public HTTPS, three redirects, and HTML up to 1 MB. A site may deny its robot access or return a different response from another region. Such an error does not prove that metadata is absent for all users.
If a new image is already replacing a previously existing one, the task is different: compare the old and new file using the cache update instructions. First establish which layer differs, then change the specific cause.
If a separate public announcement in Telegram has been prepared for this work, you can check the current view terms. Checking metadata is free; a separate order of views does not change the card or the apps' cache. Purchased activity does not confirm organic interest, recommendations, leads, or sales.