Question 1

Why does developer.mozilla.org's Twitter card show a small image?

Accepted Answer

developer.mozilla.org sets `twitter:card` to `summary`, which renders the image as a small thumbnail. To get the large hero image format, the meta tag would need to be `<meta name="twitter:card" content="summary_large_image">`.

Question 2

What Twitter card type does developer.mozilla.org use?

Accepted Answer

developer.mozilla.org uses the `summary` card type. This renders a small square thumbnail next to the title and description.

Question 3

Does developer.mozilla.org have a social share image?

Accepted Answer

No - developer.mozilla.org does not currently set an `og:image` or `twitter:image`. Twitter / X will fall back to extracting an image from the page or render no preview image at all.

Question 4

What headline does developer.mozilla.org use for social previews?

Accepted Answer

developer.mozilla.org's social headline is "MDN Web Docs" (12 characters).

Question 5

What description does developer.mozilla.org use for social previews?

Accepted Answer

developer.mozilla.org's social description reads: "The MDN Web Docs site provides information about Open Web technologies including HTML, CSS, and APIs for both Web sites and progressive web apps." (145 characters).

Question 6

What's the biggest issue with developer.mozilla.org's Twitter / X preview?

Accepted Answer

No social share image found. Without an image, your shared links get significantly fewer clicks. Posts with images receive 2-3x more engagement.

Question 7

How can I improve developer.mozilla.org's social previews?

Accepted Answer

Review the recommendations above - they list specific issues and provide ready-to-paste meta tag snippets. The highest-impact fixes are usually a properly sized `og:image` (1200×675), a clear `og:title` under 60 characters, and a 50-155 character `og:description`.

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