CodeQuest.workSEO

Free Meta Tag Checker Tool

Instantly diagnose title, description, OGP, and canonical tags.Improve how your site appears in search results and social shares.

Just enter a URL — 3 free checks without registration

What are Meta Tags?

HTML <head> tags that describe a page to search engines and social networks, directly shaping how it appears in search results and shares.

Main tags
title, meta description, canonical, OGP, Twitter Card
Title length
50-60 chars (EN) / 30-35 chars (JA)
Description length
120-160 chars (EN) / 80-120 chars (JA)
Required OGP
og:title, og:description, og:image, og:url

Best for: Site owners who want better SERP click-through rates and social previews

What Are Meta Tags? Their SEO Impact

Meta tags are HTML elements in the <head> that communicate page information to search engines and browsers.

Title Tag

The page title shown in search results. The most critical tag affecting CTR (click-through rate). 30-60 characters recommended.

Meta Description

The snippet text shown in search results. Summarize your page content accurately in 120-160 characters.

OGP Tags

Control images, titles, and descriptions when shared on social media. og:title, og:description, and og:image are essential.

Canonical Tag

URL normalization tag to prevent duplicate content. Prevents SEO value dilution from www vs non-www or parameter variations.

Why Meta Tag Checking Matters

Meta tags are the first clues search engines use to understand your page. Without a proper title tag, your CTR drops; without a meta description, Google auto-generates inappropriate snippets.

Missing OGP tags mean thumbnails and titles won't display correctly on social shares, losing traffic opportunities. Canonical tag issues cause duplicate content problems, diluting your SEO authority.

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Just enter a URL to instantly diagnose title tags, meta descriptions, OGP, and canonical settings.

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FAQ

What is a meta tag check?▾
It's a tool that automatically diagnoses the status of your HTML title tag, meta description, OGP tags, canonical tag, and more. Use it to improve how your site appears in search results and social media.
Which meta tags can you check?▾
We check title tags, meta description, OGP tags (og:title, og:description, og:image), canonical tags, robots tags, viewport tags, and more.
What happens if meta tags are not set?▾
Missing title tags reduce search result CTR. Missing OGP tags prevent thumbnails from showing on social shares. Canonical tag issues cause duplicate content problems.
What is the optimal title tag length?▾
28-32 characters for Japanese, 50-60 characters for English. Placing key keywords at the beginning improves CTR. Our tool checks character count automatically.
What is the recommended og:image size?▾
1200×630px is recommended. Missing or undersized images cause broken thumbnails on social shares, reducing click-through rates.
Why doesn't my meta description appear in search results?▾
Google sometimes auto-generates descriptions from page content. Writing compelling descriptions of 120-150 characters that match search intent increases adoption rates.