Missing Open Graph Tags: How to Fix It

Missing Open Graph tags: fixing blank or broken share previews

Missing Open Graph tags means the page lacks one or more of the three tags that build a share card: og:title, og:description and og:image. Without them, platforms like Facebook, LinkedIn, Slack and WhatsApp guess what to show, and often produce a card with no image or the wrong text. Add all three, with an image of about 1200 by 630 pixels.

This does not affect Google rankings. It affects how your links look everywhere people share them, which decides whether anyone clicks. For content you promote on social media or that people share in chats, it is worth fixing.

Updated September 30, 2026By the Hydrogen SEO team

What it looks like in the HTML

Before

html

<head>
  <title>Cold Brew at Home | Bean Notes</title>
  <meta property="og:title" content="Cold Brew at Home">
  <!-- no og:description, no og:image -->
</head>

After

html

<head>
  <meta property="og:title" content="Cold Brew at Home: The 1:8 Method">
  <meta property="og:description" content="Coarse grind, 12 to 18 hours in the fridge, no special gear.">
  <meta property="og:image" content="https://example.com/wp-content/uploads/cold-brew-card.jpg">
  <meta property="og:url" content="https://example.com/cold-brew-at-home/">
  <meta property="og:type" content="article">
</head>

Why it matters

When someone pastes your link into a post or chat, the platform fetches the page and reads its Open Graph tags to build a preview. A card with a large image and a clear headline gets noticed in a feed; a bare link or a card showing your logo cropped oddly gets scrolled past.

Without tags, each platform falls back to its own guesses: the title element, some text from the page, and whatever image it finds first, which can be a tiny icon or an ad. Social platforms and most link unfurlers read the raw HTML and do not run JavaScript, so tags added by client-side scripts are often invisible to them.

Why WordPress pages are missing them

WordPress core prints no Open Graph tags. Without a plugin or theme feature, there are none.
Missing images. A post with no featured image, and no site-wide default, has nothing to put in og:image, so a plugin may leave that one tag out.
Tags turned off. Many SEO plugins have a switch for Open Graph output; it may have been turned off to avoid a conflict with another plugin.
Descriptions left empty. If og:description falls back to the meta description, and there is none, it may be omitted.

How to fix it in WordPress

Turn on Open Graph output. In Hydrogen SEO, go to Hydrogen SEO → Social and make sure Open Graph tags is on. Hydrogen SEO then prints og:title, og:description, og:image and related tags on every page.
Set a default share image. On the same screen, choose a default share image, ideally 1200 by 630 pixels. It is used whenever a page has no social image or featured image of its own, so no page ships without one.
Rely on sensible fallbacks. With no per-post values, the OG title and description fall back to the page's SEO title and meta description, and the image falls back to the featured image. Good search metadata gives you a workable card automatically.
Write custom copy for promoted posts. In the SEO Settings sheet (Ctrl+E or Cmd+E), the Open Graph fields let you set a social title and description. The live share-card preview shows the result. One current limitation: the Media Library can be hard to click while the sheet is open, so choosing a social image there may not work; the featured image is used in the meantime.
Remove duplicates. If your theme or another plugin also prints OG tags, platforms may read the wrong set. Keep one source.

Other SEO plugins have similar settings; the key is the same: all three tags on every page, with a fallback image.

How to check the fix

View source and search for og:. You should see one of each tag, with an absolute og:image URL that opens an actual image. Then test the URL in Facebook's Sharing Debugger and LinkedIn's Post Inspector; both show what they read and let you refresh a cached card. Platforms cache previews, so a link shared before your fix may keep its old card until it is re-scraped. The free SEO audit lists which OG tags are missing.

Common questions

Do Open Graph tags affect SEO?

Not Google rankings. They control how links appear when shared on social platforms and chat apps, which affects clicks from those places.

What size should og:image be?

1200 by 630 pixels, a 1.91:1 ratio, is the safe standard for large cards on the major platforms. Keep important content away from the edges.

Why does Facebook still show my old image?

Facebook caches scraped pages. Use the Sharing Debugger to fetch the URL again and refresh the card.