Meta Tag Analyzer — Check Title, Description & OG Tags

This free meta tag analyzer inspects a page's SEO and social tags — title, meta description, canonical, robots, and Open Graph — and flags common problems. It checks that your title tag runs 50–60 characters and your meta description stays near 155, since Google truncates longer ones, and confirms Open Graph tags exist so shared links render a proper preview card. Use it before and after publishing to catch duplicate titles, missing descriptions, or accidental noindex tags. Analysis runs in your browser; nothing is stored.

What meta tags matter for SEO

Meta tags live in the <head> of your HTML and communicate page information to search engines and social platforms without being visible on the page itself. The most critical are: title tag (50–60 characters optimal — appears as the blue link in search results), meta description (150–160 characters — the preview text under the title, not a ranking factor but heavily influences click-through rate), canonical URL (prevents duplicate content issues by pointing to the authoritative version of a page), and robots meta (controls whether search engines index and follow links on the page).

Open Graph tags control how your page appears when shared on social media. Twitter Card tags do the same for Twitter/X. Without these, social platforms scrape unpredictable content for link previews. Use this analyzer to audit any page's meta tags by pasting its HTML source — obtainable via View Source (Ctrl+U) in any browser.

Related tools

OG tag generator → Schema generator → Keyword density →

The tags search engines actually read

Two tags do most of the work in a search result. The title tag becomes the clickable blue headline and should run 50–60 characters with the primary keyword near the front. The meta description is the grey snippet beneath it — aim for 140–155 characters; while it isn't a direct ranking factor, a compelling description lifts click-through, which indirectly helps.

Beyond title and description

A self-referencing canonical tag prevents duplicate-content dilution, the robots meta controls indexing, and Open Graph and Twitter Card tags decide how your link looks when shared on social platforms. Missing OG tags are why a shared link sometimes shows no image or the wrong text.

Common mistakes this surfaces

Duplicate titles across pages, descriptions that are truncated or missing, titles that are too long and get cut with an ellipsis, and pages accidentally left on noindex after launch. Auditing these tags before and after publishing catches the small errors that quietly suppress traffic.

⚠️ Common Mistakes to Avoid

Frequently asked questions

Why are meta tags important?

They provide search engines with information about your page and affect how your site looks in search results.

What is a Meta Description?

A short summary of a page's content that often appears under the title in search engine results.

Related guides

What is SEO? → Common SEO Audit Failures → The AEO Checklist →
Reviewed by the ToolsmithPro editorial team · Last updated June 2026. Every calculation and conversion runs entirely in your browser — your inputs are never uploaded, stored or shared. Formulas and methodology are documented on our about page; spot an error? tell us and we'll fix it.