What your link looks like when it is shared
Paste an address and see the card people will actually get: the picture, the title, the description, and what is missing. Free, no signup.
Paste an address and see what comes back.
The card is the advert
A link with a picture, a title and a line of description takes up ten times the space of a bare blue link, and it is the whole of your advert on a board, in a group or in a chat. When the picture is missing, most people scroll past without ever knowing there was something to look at.
The tags that decide this are invisible on the page itself, which is why they go wrong quietly and stay wrong for months. This reads them, fetches the picture to check it really loads, measures it, and shows the three shapes a card is usually drawn in.
What it checks
- The picture — present, absolute, https, reachable, big enough, a format that scrapers render, and the size the page claims it is.
- Title and description — where each one comes from, and whether it survives the length a card shows.
- The small print —
twitter:card,og:site_name, a canonical pointing somewhere else, and anoindexyou forgot to remove.
A server cannot see a draft. Anything unpublished, behind a login, or on a staging address is invisible from here. The extension reads the page in front of you instead, so you can check a listing before it goes live.
Questions
Why does my link show no picture when I share it?
Almost always one of four things: there is no og:image at all, the address it gives is relative rather than the full https://…, the file cannot be loaded from outside your site, or it is an SVG, which card builders do not render. This tool fetches the picture as well as the page, so it tells you which of the four it is.
I fixed it, but the old picture keeps appearing.
The platform cached the old card. Each has its own debugger that will re-read the page for you; searching for "sharing debugger" plus the platform name finds it. This checker always fetches fresh, so it shows what a re-read would get.
Can I check a listing or page that is not public yet?
Not from here: a server can only fetch what anyone can fetch. That is what the browser extension is for. It reads the page in your own browser, so a draft, a preview link or a page behind a login is checked exactly as it will be shared.
What size should the picture be?
About 1200 × 630 px is the usual wide card, and anything under about 600 px wide gets shown as a small square thumbnail instead. Keep faces and words away from the edges: every platform crops a little differently, and none of them tell you by how much.