Question 1

Why does nih.gov's Twitter card show a small image?

Accepted Answer

nih.gov 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 nih.gov use?

Accepted Answer

nih.gov uses the `summary` card type. This renders a small square thumbnail next to the title and description.

Question 3

Does nih.gov declare image dimensions?

Accepted Answer

nih.gov sets `og:image` but does not include `og:image:width` and `og:image:height`. Explicit dimensions let platforms render the preview faster without downloading the image first.

Question 4

What headline does nih.gov use for social previews?

Accepted Answer

nih.gov's social headline is "National Institutes of Health (NIH) |" (37 characters).

Question 5

What description does nih.gov use for social previews?

Accepted Answer

nih.gov's social description reads: "Official website of the National Institutes of Health (NIH). NIH is one of the world's foremost medical research centers. An agency of the U.S. Depart…" (379 characters).

Question 6

What site name does nih.gov display on social cards?

Accepted Answer

nih.gov sets `og:site_name` to "National Institutes of Health (NIH)". This appears as a small attribution label on Facebook, LinkedIn, and Slack.

Question 7

What's the biggest issue with nih.gov's Twitter / X preview?

Accepted Answer

No og:title - falling back to <title> tag. Set og:title to control social sharing independently from your page title.

Question 8

How can I improve nih.gov'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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