Free Meta Tags & SEO Checker

Analyze your page's title tags, meta descriptions, headings, Open Graph tags, and more. Get instant recommendations to improve SEO and AI visibility.

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What meta tags actually control

Meta tags do not describe your page to a ranking algorithm so much as decide what a person sees before they ever reach it — the search snippet, the link card in Slack, the line an assistant uses when it names your page.

Where they show up

  • The title link and snippet in a search result
  • The preview card when someone pastes your URL into Slack or LinkedIn
  • The summary line an AI assistant uses when it references the page

What We Check

  • Title tag presence and length (10–60 chars)
  • Meta description, headings, and OG tags
  • Language, viewport, and Twitter Card tags

Frequently Asked Questions

Meta tags are HTML elements that provide information about your page to search engines and AI models. The title tag and meta description directly influence your click-through rates in search results. Open Graph tags control how your page appears when shared on social media. Missing or poorly optimized meta tags can significantly reduce your visibility in both traditional search and AI-generated responses.

The recommended title tag length is 10–60 characters. Titles shorter than 10 characters are too vague to be useful. Titles longer than 60 characters get truncated in search results, hiding important information. Place your most important keywords at the beginning of the title for maximum impact.

Search engines and AI models use heading tags (H1–H6) to understand your content structure. Each page should have exactly one H1 tag that describes the main topic. Headings should follow a logical order (H1 → H2 → H3) without skipping levels. A clear heading hierarchy helps crawlers understand your content and improves accessibility for screen readers.

Open Graph (OG) tags are meta tags that control how your page appears when shared on Facebook, LinkedIn, Slack, and other platforms. The three critical OG tags are og:title, og:description, and og:image. Without these, social platforms will guess what to display, often resulting in unappealing or inaccurate previews that reduce engagement.

AI models like ChatGPT, Gemini, Claude, and Perplexity use page metadata to understand and summarize content. A clear title tag, descriptive meta description, and proper heading structure help AI models accurately represent your brand. Pages with missing or poorly structured meta tags are less likely to be cited in AI-generated responses.

Yes. GeoVector's Meta Tags Checker is completely free with no sign-up required. You can scan any URL and get instant results with actionable fix recommendations. For site-wide audits and ongoing monitoring, GeoVector offers premium plans.

What this checker expects, and why

These are the exact thresholds the scan applies — not rounded rules of thumb.

ElementWhat we expectWhy
<title>Present; 10–60 charactersMissing is an error. Under 10 characters rarely describes the page; over 60 may be truncated or rewritten in the result.
meta descriptionPresent; 50–160 charactersMissing is a warning. Google rewrites descriptions often, but a good one still wins the click when it is kept.
h1Exactly oneZero leaves extraction guessing at the page topic. More than one is legal HTML5 and still worth a look.
Heading orderNo skipped levelsAn h2 followed by an h4 breaks the outline that both screen readers and answer extractors walk.
Title / h1 overlapShare at least one significant wordNo overlap usually means the template and the content disagree about what the page is.
Open Graphog:title, og:type, og:image, og:url (og:description recommended)Missing og:image is the difference between a link card and a bare URL.
Twitter cardtwitter:cardFalls back to Open Graph when absent, so this is a nice-to-have rather than a blocker.
langSet on the html elementWarning when missing. It tells crawlers and assistive tech which language to expect.
viewportPresentAbsent viewport meta means mobile rendering is left to the browser default.

A complete head, and one to avoid

Most pages need nothing more exotic than this.

A head that passes every check above
<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8" />
  <meta name="viewport" content="width=device-width, initial-scale=1" />

  <title>Sitemap Checker — Validate XML Sitemaps</title>
  <meta name="description" content="Check any XML sitemap for parse errors, duplicate URLs, broken index nesting, and URLs that no longer resolve." />
  <link rel="canonical" href="https://example.com/tools/sitemap-checker" />

  <meta property="og:type" content="website" />
  <meta property="og:url" content="https://example.com/tools/sitemap-checker" />
  <meta property="og:title" content="Sitemap Checker — Validate XML Sitemaps" />
  <meta property="og:description" content="Check any XML sitemap for parse errors, duplicate URLs, and broken index nesting." />
  <meta property="og:image" content="https://example.com/og/sitemap-checker.png" />

  <meta name="twitter:card" content="summary_large_image" />
</head>
What a stuffed head looks like
<title>Sitemap Checker | SEO Tools | Example | Example</title>
<meta name="description" content="Sitemap checker. Free sitemap checker. Best sitemap checker tool online." />

Repeating the site name until the title is cut off, then repeating the keyword three times in the description, costs you the part of the snippet a reader actually decides on. Search engines routinely rewrite descriptions like this, and answer engines quote the page body rather than the meta tags — so the stuffing buys nothing in either channel.

Sources and specifications

Everything on this page is checked against the primary documentation below. If a vendor changes a rule, that is where it shows up first.

Last reviewed . We re-check this page against the source specifications whenever a vendor updates one.

Free Meta Tags & SEO Checker | GeoVector