Meta tag analyzer

Paste your page's HTML source to audit all SEO meta tags — title, description, Open Graph, Twitter Card, canonical, and robots.

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.

Frequently asked questions

What is the ideal length for a title tag?

Google displays approximately 50–60 characters of a title tag in search results. Titles shorter than 30 characters underuse the space; longer than 60 characters get truncated with "…". The most important keywords should appear toward the beginning of the title.

Does meta description affect rankings?

Meta description is not a direct ranking factor. Google confirmed this in 2009. However, a compelling description improves click-through rate from search results, which is an indirect ranking signal. Google may also rewrite your description if it doesn't match the user's query.

What does the canonical tag do?

The canonical tag (<link rel="canonical">) tells Google which URL is the authoritative version when the same or similar content exists at multiple URLs. It consolidates link equity to one URL and prevents duplicate content penalties from paginated pages, URL parameters, or HTTPS/HTTP variants.

What does robots meta noindex mean?

The robots meta tag with content="noindex" instructs search engines not to include the page in their index. The page can still be crawled but won't appear in search results. Use it for thank-you pages, admin pages, duplicate content, and pages under construction.

Related tools

OG tag generator → Schema generator → Keyword density →