What are Open Graph tags?

Open Graph tags are meta tags that control how your page appears when shared on social platforms like Facebook, LinkedIn, and Slack, specifying the title, description, and image.

What is a Twitter Card?

Twitter Cards are meta tags (twitter:card, twitter:title, twitter:description, twitter:image) that control how your links appear when shared on X (Twitter).

What image size should I use for og:image?

Use 1200x630 pixels for Open Graph images. This size works well across Facebook, LinkedIn, Slack, and most platforms that display link previews.

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How to Add Open Graph and Twitter Card Meta Tags

SEO Feb 16, 2026 2 min read

What these checks test

SiteCurl checks whether your pages include Open Graph meta tags (og:title, og:description, og:image) and Twitter Card tags (twitter:card, twitter:title, twitter:description, twitter:image). Missing tags mean social platforms generate their own previews, which are often wrong or empty.

Why it matters

Every time someone shares your page on Facebook, LinkedIn, Slack, Discord, or X (Twitter), the platform fetches your Open Graph tags to build a preview card. This card includes a title, description, and image. A well-crafted preview gets clicks. A blank or broken preview gets ignored.

LinkedIn posts with images get 98% more comments than those without. A proper og:image makes the difference between a compelling share and an empty rectangle.

How to fix it

Required Open Graph tags

Add these to the <head> of every page:

<meta property="og:title" content="Your Page Title">
<meta property="og:description" content="A clear summary of the page content.">
<meta property="og:image" content="https://yoursite.com/images/og-preview.jpg">
<meta property="og:url" content="https://yoursite.com/page">
<meta property="og:type" content="website">
<meta property="og:site_name" content="Your Site Name">

Required Twitter Card tags

<meta name="twitter:card" content="summary_large_image">
<meta name="twitter:title" content="Your Page Title">
<meta name="twitter:description" content="A clear summary of the page content.">
<meta name="twitter:image" content="https://yoursite.com/images/og-preview.jpg">

Image requirements

Size: At least 1200x630 pixels for summary_large_image cards
Format: JPG or PNG (not SVG)
URL: Must be an absolute URL with https://
File size: Under 5MB

Create a default OG image for your site and set it as the fallback. For blog posts, use the post’s featured image. For product pages, use the product photo.

CMS tools

WordPress: Yoast SEO and Rank Math add OG and Twitter tags automatically with options to customize per page. Squarespace: Social sharing image settings are in the page settings under SEO. Shopify: OG tags are included by default for product pages.

How to verify the fix

Use the Facebook Sharing Debugger (developers.facebook.com/tools/debug/) to preview your OG tags. For Twitter, use the Card Validator (cards-dev.twitter.com/validator). Run a SiteCurl scan to check all pages at once.

Social meta tags complement your title tags and meta descriptions. All three should be consistent.

Start a free trial to find pages missing social sharing tags.