Question 1

Does diagrams.net declare an og:type?

Accepted Answer

No - diagrams.net does not set an `og:type` meta tag. Most platforms default to `website`, but explicitly declaring it ensures consistent rendering.

Question 2

Does diagrams.net declare image dimensions?

Accepted Answer

diagrams.net 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 3

What headline does diagrams.net use for social previews?

Accepted Answer

diagrams.net's social headline is "Security-first diagramming for teams | draw.io" (46 characters).

Question 4

What description does diagrams.net use for social previews?

Accepted Answer

diagrams.net's social description reads: "Free, open source diagramming application with 100M+ users. Store your data wherever you want—we can't access it." (113 characters).

Question 5

What's the biggest issue with diagrams.net's Slack preview?

Accepted Answer

Missing og:type tag. Platforms default to "website" but explicitly setting it ensures correct rendering.

Question 6

How can I improve diagrams.net'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` (800×418), a clear `og:title` under 60 characters, and a 50-155 character `og:description`.

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