Question 1

What is fastmail.com's Open Graph type?

Accepted Answer

fastmail.com declares `og:type` as `website`. This tells Slack how to categorize the content when generating a preview.

Question 2

What size is fastmail.com's social share image?

Accepted Answer

fastmail.com's `og:image` is 1200×630 pixels. Slack recommends 800×418 (1.91:1 aspect).

Question 3

What headline does fastmail.com use for social previews?

Accepted Answer

fastmail.com's social headline is "Email and calendar made better" (30 characters).

Question 4

What description does fastmail.com use for social previews?

Accepted Answer

fastmail.com's social description reads: "Fast, private email hosting for you or your business. More productive, lightning fast, simple and built to save you time." (121 characters).

Question 5

What site name does fastmail.com display on social cards?

Accepted Answer

fastmail.com sets `og:site_name` to "Fastmail". This appears as a small attribution label on Facebook, LinkedIn, and Slack.

Question 6

What's the biggest issue with fastmail.com's Slack preview?

Accepted Answer

URL redirected (1 redirect). Original: https://fastmail.com

Question 7

How can I improve fastmail.com'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`.

How fastmail.com Looks on Slack

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