English | 한국어 | 日本語 | Español | Português (Brasil)
Your metadata mate for GEO & SEO.
Meta Checker is a Chrome extension that compares metadata in the live DOM with the original HTML response. It helps you understand what search engines and AI crawlers may see and quickly spot values that were added, changed, or removed after the page loaded.
Install from the Chrome Web Store
- Page title, meta title, meta description, and canonical URL
- Open Graph title, description, type, site name, URL, and image
- Robots directives, document language, and alternate-language links
- HTTP status, final URL, redirects, content type, and
X-Robots-Tag - JSON-LD block count, validation errors, and detected
@typevalues - Original tag source through the code button
You can collapse sections and use Display settings to choose entire sections or individual fields. The popup interface supports English, Korean, Japanese, Spanish, and Brazilian Portuguese.
- Verify which metadata is present in the server-delivered HTML.
- Detect metadata changed at runtime by frameworks, scripts, or tag managers.
- Review canonical, language, robots, Open Graph, HTTP, and JSON-LD signals in one pass.
- Investigate gaps between the original response and the page users or capable crawlers see.
Meta Checker provides technical metadata inspection. It does not predict or guarantee search rankings or visibility in AI-generated answers.
| State | Meaning |
|---|---|
Same |
The live DOM matches the original HTML response. |
New |
The value exists in the live DOM but not in the original response. |
Changed |
The live DOM value differs from the original response. |
Removed |
The value exists in the original response but not in the live DOM. |
Click any state chip, or the ? button in the upper-right corner, to open the
state guide.
- Open a regular webpage that you want to inspect.
- Click Meta Checker in the Chrome toolbar.
- Review the metadata values and their state chips.
- Use the code button to view the complete source tag for a value.
- Use Display settings to select the sections and fields you want to see.
- Choose an interface language from the language menu.
On regular webpages, Meta Checker automatically reconnects its metadata reader
when a tab was already open before the extension was installed or reloaded.
Chrome-protected pages such as chrome://extensions cannot be inspected.
- Download or clone this repository.
- Open
chrome://extensionsin Chrome. - Enable Developer mode.
- Select Load unpacked.
- Choose the repository root containing
manifest.json. - Pin Meta Checker from the extensions menu in the Chrome toolbar.
Current release: 1.1.1