---
title: "Meta tag and Open Graph checker"
description: "Preview how a page looks in Google results and social cards, and check its title, description, canonical, robots and Open Graph tags. Free."
url: "https://rookflare.com/tools/meta-tag-checker/"
---

# Meta tag and Open Graph checker

Preview how a page appears in Google results and on social cards, and check the title, description, canonical, robots and Open Graph tags behind it. Use the form at https://rookflare.com/tools/meta-tag-checker/ (needs JavaScript); the API endpoint is POST /api/public/v1/tools/meta-tags with a JSON body { "url": "https://example.com" }.

## What you get

- Previews for Google, Facebook and LinkedIn, X and Slack
- Title and description length
- Canonical, robots and noindex settings
- Every Open Graph and Twitter tag on the page

## Ideal lengths

Guidelines, not hard limits. Google trims by pixel width and may rewrite titles and snippets, and each social network crops in its own way.

| Tag | Guideline | Why |
| --- | --- | --- |
| <title> | About 50–60 characters | Google cuts long titles to fit the result width. Put the words people search for first. |
| meta description | About 70–160 characters | Long descriptions are cut on desktop and sooner on mobile. Google often shows a passage from the page instead. |
| og:image | 1200 × 630 px (1.91:1) | The size Facebook recommends for link previews. LinkedIn uses the same ratio. |
| twitter:title | Up to 70 characters | The limit in X’s card documentation. |
| twitter:description | Up to 200 characters | The limit in X’s card documentation. |
| twitter:image | 2:1, at least 300 × 157 px | For summary_large_image cards; X accepts files up to 5 MB. |

## Which tags each platform reads

Most platforms fall back to other tags when theirs are missing, so one complete set covers all of them.

| Platform | Reads | Notes |
| --- | --- | --- |
| Google | <title>, meta description | Open Graph tags are not used for the search result. |
| Facebook | og:title, og:description, og:image, og:url | Without them it guesses from the page. |
| LinkedIn | Open Graph tags | The same tags as Facebook. |
| X | twitter: tags, then og: tags | twitter:card sets the layout. For each field X reads the twitter: tag first and falls back to the matching og: tag. |
| Slack | oEmbed, then twitter: and og: tags | When neither is there, Slack uses the HTML title and description. |

## What this tool checks

### Search snippet

Title and description length, the canonical URL and whether the page asks not to be indexed (robots meta tag or X-Robots-Tag header).

### Social card

og:title, og:description, og:image (with width and height when declared) and twitter:card.

### Page basics

The html lang attribute, a viewport tag for mobile and the number of h1 headings.

## How to fix common problems

### Title or description too long

Google cuts titles at about 60 characters and descriptions at about 160. Put the words that matter first.

### No og:image

Without it, social networks pick a random image or none. Add a 1200 × 630 image and declare og:image:width and og:image:height.

### Accidental noindex

A staging setting often survives a launch. Remove noindex from the robots meta tag and the X-Robots-Tag header on pages that should be found.

## Monitor this automatically

Each scheduled scan reads the title, canonical and robots settings of every monitored page and opens an issue when a page turns noindex or loses its title. [Start free trial](https://app.rookflare.com/register/).

## Frequently asked questions

### Will Google show exactly this preview?

Not always. Google may rewrite titles and descriptions. The preview shows what your page asks for, which is what you control.

### Why is the image shown as a link?

We do not download or proxy images from other sites. Open the link to see the image the social networks will fetch.

### Is this tool free?

Yes. You do not need an account. Each IP address can run 10 checks a minute and 100 a day, and a website can be checked 10 times in 10 minutes across all visitors so the tool is never used to flood a site.

### Do you store the URL or the results?

The result is kept for 10 minutes so a repeated check is instant, then it is deleted. We do not log the URLs you check or the content of the page.

## More free tools

- [Hreflang and canonical checker](https://rookflare.com/tools/hreflang-checker/): Language alternates, return links and canonicals.
- [Robots.txt and sitemap validator](https://rookflare.com/tools/robots-txt-validator/): Crawler rules, AI bots, sitemap files and URL count.