Meta Checker: Inspecting Title, Description, and OG Tags
When you share a URL on Slack, Twitter, or KakaoTalk, you see a preview card — that's pulled from the page's meta tags. Bad or missing meta tags produce ugly previews. This tool inspects what your URLs send.
Three sets of meta tags matter for SEO and sharing: standard HTML (title, description), Open Graph (og:title, og:description, og:image — used by Facebook, LinkedIn, KakaoTalk), and Twitter Cards (twitter:card, twitter:title — used by X/Twitter).
All three should be present and accurate on every page. Missing tags cause platforms to fall back to whatever scraping they can do, which often produces wrong or unflattering previews.
Tags this tool checks
- •<title> — appears in browser tabs and search results
- •<meta name="description"> — search snippet under the title
- •og:title, og:description, og:image — Facebook, LinkedIn, KakaoTalk previews
- •twitter:card, twitter:title, twitter:description, twitter:image — X previews
- •canonical link — tells search engines the preferred URL
Extended FAQ
Why does my page have no preview image on social media?
Missing og:image, or the URL is broken/blocked. The image must be publicly accessible, typically 1200×630 pixels, and under 1 MB.
Are my URLs stored?
No — runs entirely in your browser.