Meta Tag Checker

Validate your standard SEO tags. Ensure your Titles and Descriptions are the perfect length for SERPs.

What is a meta tag checker?

A meta tag checker is a diagnostic tool that analyzes the HTML source code of your webpage to extract unseen metadata that communicates with search engines and browsers.

Unlike the visible text on your page, meta tags live in the <head> section of your code. They tell Google how to display your link in search results (SERPs) and ensure your site renders correctly on mobile devices.

For SEO RankingsTitle and Description tags directly influence click-through rates and relevance signals.
For UsabilityViewport and Language tags ensure your content is readable and localized correctly.

GEO Insight: Meta Tags as Bias

LLMs are trained on massive datasets where meta tags act as 'ground truth' summaries. While humans see a blue link, AI models see these tags as the official definition of your page. A weak meta description isn't just a low CTR; it's an AI identity crisis.

How this Meta Tag Checker Works

We parse the <head> of your webpage to find standard SEO tags. We evaluate them based on Google's current SERP (Search Engine Results Page) pixel limits, not just character counts.

Pixel Width Analysis: A "W" takes up more space than an "i". We calculate the visual width to predict truncation.
Canonical Checks: We ensure your `canonical` tag matches your URL to prevent duplicate content issues.
Viewport Validation: We verify the `viewport` meta tag to ensure mobile friendliness.

Why it Matters for GEO

The First Impression

Your Title and Meta Description are your "Ad Copy" in search results. If they are truncated or missing, users are less likely to click.

Duplicate Content Prevention

Without a proper self-referencing canonical tag, search engines might index URL parameters (e.g., `?source=twitter`) as separate pages, diluting your ranking power.

Davide Agostini

Android Mobile Engineer and Founder of ViaMetric. Davide specializes in technical SEO and the emerging field of Generative Engine Optimization (GEO), helping founders navigate the shift from links to AI citations.

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Frequently Asked Questions

Aim for ~60 characters or 580 pixels. This ensures your full title is visible on desktop search results without being cut off by the '...' ellipsis.

No. Google stopped using the `keywords` meta tag for ranking in 2009. Using them is a waste of bytes and can even reveal your strategy to competitors.

Google frequently rewrites titles if they think the H1 or another element is more relevant to the user's query. Ensure your Title reflects the page content accurately to prevent this.