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"OG" is short for Open Graph — the metadata protocol Facebook open-sourced in 2010 and that every major social platform now uses to render URL previews. When someone shares a link in Slack, Discord, LinkedIn, iMessage, Telegram, or X.com, the messenger scrapes the page's og:* (and twitter:*) tags to compose the preview box. This OG tag generator emits a production-ready block of these tags from a single form — including type-specific variants (article, product, profile) and full character/meter validation.

Table of Contents

  1. What This OG Tag Generator Emits
  2. Quick Start: Three Fields, One Click
  3. og:type Variants and Their Extra Properties
  4. Twitter Card Pairing
  5. Troubleshooting Facebook / Slack / X Previews
  6. Frequently Asked Questions

What This OG Tag Generator Emits

Every click of Generate produces a copy-paste-ready block of HTML meta tags. The output blends:

  • og:title, og:description, og:url, og:image — the four mandatory tags for any preview to render.
  • og:type — website by default, switchable to article, product, profile, video.other, music.song.
  • og:image:* extensions — image width, height, alt text.
  • og:locale, og:site_name — locale hints (e.g. en_US) and branding.
  • twitter:* cards — paired mirror tags so X.com renders the same preview as Facebook/Slack.
<meta property="og:type" content="article" />
<meta property="og:title" content="How OG Tags Drive Click-Throughs" />
<meta property="og:description" content="..." />
<meta property="og:url" content="https://mytoolslist.com/..." />
<meta property="og:image" content="https://mytoolslist.com/og/..." />
<meta property="og:image:width" content="1200" />
<meta property="og:image:height" content="630" />
<meta property="og:locale" content="en_US" />
<meta property="og:site_name" content="MyToolsList" />
<meta property="article:published_time" content="2025-07-16T08:00:00Z" />
<meta property="article:author" content="..." />
<meta property="article:section" content="Marketing" />
<meta name="twitter:card" content="summary_large_image" />
<meta name="twitter:site" content="@mytoolslist" />

The block is ready to drop into the <head> of any HTML page. No server round-trip is required.

Quick Start: Three Fields, One Click

The minimum preview requires:

  1. Title — 40–60 characters is the sweet spot (the meter turns yellow >50, red >60).
  2. Description — 100–160 characters (yellow >150, red >160).
  3. Image URL — a publicly accessible image, ideally 1200 × 630 px PNG/JPG.

Click Generate, then paste the resulting <meta> block inside <head>. The image URL must return 200 OK when fetched by facebookexternalhit (Facebook), Twitterbot (X), and Slackbot (Slack). If your CDN blocks these user-agents, your preview falls back to a plain link.

Tip: Run the URL through Facebook Sharing Debugger and Twitter Card Validator after publishing — both will show exactly how the preview renders, with warnings for missing/invalid tags.

og:type Variants and Their Extra Properties

When you switch the og:type dropdown, the generator surfaces the type-specific fields:

website — default

No extensions. Use for tools, homepages, landing pages.

article — blog post / news

<meta property="og:type" content="article" />
<meta property="article:published_time" content="2025-07-16T08:00:00Z" />
<meta property="article:modified_time" content="2025-07-16T12:30:00Z" />
<meta property="article:author" content="Marie Curie" />
<meta property="article:section" content="Physics" />
<meta property="article:tag" content="radioactivity" />

Multiple <meta property="article:tag"> lines are valid (one per tag).

product — e-commerce SKU

<meta property="og:type" content="product" />
<meta property="product:price:amount" content="19.99" />
<meta property="product:price:currency" content="USD" />
<meta property="product:availability" content="in stock" />
<meta property="product:brand" content="MyToolsList" />

Facebook displays a price-stripped preview when these are present.

profile — people

For team pages and author pages:

<meta property="og:type" content="profile" />
<meta property="profile:first_name" content="Marie" />
<meta property="profile:last_name" content="Curie" />
<meta property="profile:username" content="mariecurie" />

video.other / music.song

Vertical-specific tags (video:actor, music:album) are emitted only when those types are selected.

Twitter Card Pairing

X.com renders its own preview cards using twitter:* tags. The generator emits a paired set automatically:

twitter:card Visual
summary Small thumbnail, side-by-side text
summary_large_image Full-width image above text (recommended)
app App install card
player Inline video

The default summary_large_image consistently outperforms summary — the full-width image preview gets roughly 3× click-through on X.com.

Troubleshooting Facebook / Slack / X Previews

When a preview renders wrong, run through this checklist:

  1. Image returns 404? Open it in a private window. If it 404s, Facebook/Slack/X all show a blank.
  2. Image blocked by CDN? Test the URL with curl -I -A "facebookexternalhit/1.1" https://example.com/og.png. If response code is 403, allowlist the bot user-agent or move the image to a CDN that doesn't block crawlers.
  3. Tags not picked up? Facebook caches aggressively — re-scrape after edits via the Sharing Debugger. Slack caches for ~30 min. X.com caches for ~7 days.
  4. Wrong image crop? Slack and Telegram apply a 16 px corner mask — keep critical text 32 px from each edge of the 1200 × 630 image.
  5. Apple iOS 17+ iMessage preview blank? iMessage now requires a apple-itunes-app meta tag when sharing app store pages; for normal websites, the regular OG tags should work.

Formula callout: Facebook re-scrapes a page on average every 30 days, X.com every 7 days, Slack every 30 min. Use the platform-specific debuggers to force a re-scrape after each publish.

People Also Ask

They are the same thing — "OG" is shorthand for "Open Graph". Both terms return equivalent search results. Some marketers prefer the shorthand because it's faster to type.
Last updated: July 19, 2026