How fastmail.com Looks on Twitter / X
fastmail.com configures its Twitter preview as a `summary_large_image` card. The current preview headline reads "Email and calendar made better". It pairs with the description "Fast, private email hosting for you or your business. More productive, lightning fast, simple and built to save you t..." and a social image. Overall, fastmail.com's setup scores 97/100 against Twitter / X best practices.
Twitter / X preview
Twitter / X
summary_large_image (active)

www.fastmail.com
Email and calendar made better
Fast, private email hosting for you or your business. More productive, lightning fast, simple and bu...
summary

www.fastmail.com
Email and calendar made better
Fast, private email hosting for you or your business. More productive, lightning fast, simple and bu...
Card by @Fastmail
Analysis
fastmail.com's social meta tag setup passes every check we run. The required tags are present, the image is well-sized, and the title and description fit comfortably within Twitter / X's truncation limits. There's not much to improve here - this is a strong reference for anyone looking to optimize their own social previews.
What's working well: social share image found; title length is good (30 chars); description length is good (121 chars). 4 of the checks we run pass cleanly.
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