toolitda / SEO Meta Tag Checker

SEO Meta Tag Checker

Check and generate SEO title, meta description, canonical, robots, OG, and Twitter tags.

SEO Meta Tag Checker and Generator

Check SEO status from a URL or HTML and generate missing meta, OG, and canonical tags.

Inspection mode

URL inspection checks HTML, robots.txt, and sitemap.xml from the server. Localhost and private network addresses are blocked for security.

SEO score

Based on the internal checklist

22

SEO score

Pass

2

Warning

0

Missing

7

Generation criteria

Use the fetched tags as a base and refine the page title, description, canonical URL, and image.

Diagnostics

Review each issue, reason, and example. Apply suggested values directly when useful.

Title

Pass
Issue
25 characters, within the recommended range.
Reason
This length makes the key information easier to understand in search results.
Example fix
toolitda - Free Web Tools

Description

Pass
Issue
102 characters, within the recommended range.
Reason
This length makes the key information easier to understand in search results.
Example fix
Free online tools for character counting, JSON formatting, QR code generation, and SEO tag generation.

H1

Missing
Issue
The page has no representative H1 heading.
Reason
Without a main heading, users and search engines may struggle to identify the page topic.
Example fix
<h1>Page title with the primary keyword</h1>

Copyable tag

<h1>Page title with the primary keyword</h1>

Canonical

Missing
Issue
Canonical URL tag is missing.
Reason
When the same content is reachable from multiple URLs, canonical tells crawlers which URL is representative.
Example fix
https://example.com

Copyable tag

<link rel="canonical" href="https://example.com">

Robots meta

Missing
Issue
Robots meta tag is missing.
Reason
Clear indexing intent reduces mistakes during operation.
Example fix
index, follow

Copyable tag

<meta name="robots" content="index, follow">

OG title

Missing
Issue
OG title tag is missing.
Reason
This title appears when links are shared in services such as Facebook, Slack, and messengers.
Example fix
toolitda | Free Web Tools

Copyable tag

<meta property="og:title" content="toolitda | Free Web Tools">

OG description

Missing
Issue
OG description tag is missing.
Reason
This description appears below the title in shared cards and affects click intent.
Example fix
Use free web tools for character counting, JSON formatting, QR code generation, SEO tags, and more in one place.

Copyable tag

<meta property="og:description" content="Use free web tools for character counting, JSON formatting, QR code generation, SEO tags, and more in one place.">

OG image

Missing
Issue
OG image tag is missing.
Reason
A representative image affects trust and click-through in shared cards.
Example fix
https://example.com/og-image.png

Copyable tag

<meta property="og:image" content="https://example.com/og-image.png">
OG preview

Twitter card

Missing
Issue
Social preview card tag is missing.
Reason
This stabilizes link card rendering on X and similar platforms.
Example fix
summary_large_image

Copyable tag

<meta name="twitter:card" content="summary_large_image">

Improve score

H1

Add an H1 near the top of the page with the primary keyword.

Canonical

Add a canonical tag to prevent duplicate URL issues.

Robots meta

If the page should be indexed, specify index, follow.

OG title

Add og:title for social sharing, matching the title or using a more natural sharing headline.

OG description

Add og:description for social previews.

OG image

Prepare a representative 1200x630 image and add og:image.

Next actions after diagnosis

Generated head tags

A base set of tags you can copy to fill missing items.

Next check steps

  1. 1Next, check whether robots.txt and sitemap.xml are accessible.