og:description: the line under the title

og:description is the short summary shown under the title in a link preview. Facebook shows about one line, X two, Discord much more, and LinkedIn usually none. Give a reason to click in the first 100 characters.

<meta property="og:description" content="Five CI changes that took builds from 14 to 6 minutes." />

100 characters

PlatformShows aboutYours
Facebook110 chars (1 line)Fits
X (summary card)100 chars (2 lines)Fits
WhatsApp90 chars (1–2 lines)Cut after 90
Slack200 chars (several lines)Fits
Discord350 chars (several lines)Fits
LinkedInusually hiddenn/a

Approximate: platforms cut by pixel width and screen size, not a fixed count. Limits are what the current apps show at typical widths.

Facebook
EXAMPLE.COM
How we cut our deploy time in half
Five changes to our CI pipeline that took builds from 14 minutes to 6, with the config you can copy.
Discord
example.com
How we cut our deploy time in half
Five changes to our CI pipeline that took builds from 14 minutes to 6, with the config you can copy.

Rules for og:description

  • Optional in the protocol, but every major platform uses it.
  • Aim for 80–160 characters, with the hook in the first 100.
  • Falls back to <meta name="description"> when missing.
  • Plain text only: HTML tags and line breaks are stripped or shown literally.

Common mistakes

  • Repeating the title word for word.
  • Starting with boilerplate (“Welcome to our website…”).
  • Unescaped quotes that break the content attribute.

Write the full tag set in the generator, or see all tags in the Open Graph tag reference.

Frequently asked questions

What is og:description?

An Open Graph meta tag holding a one- or two-sentence summary of the page, shown under the title in social link previews.

How long should og:description be?

80–160 characters works across platforms. Facebook shows roughly one line (often about 60–110 characters), X shows about two lines and Discord can show around 350 characters.

Should og:description match the meta description?

It can, and if og:description is missing platforms will use the meta description. Many sites write a more conversational version for social.