Frequently Asked Questions
What are meta tags and why do they matter for SEO?
Meta tags are HTML elements that provide search engines with information about your page. The title tag and meta description appear in search results and directly affect click-through rates. Open Graph and Twitter Card tags control how your page looks when shared on social media.
What is an Open Graph tag?
Open Graph tags (og:title, og:description, og:image) control how your page appears when shared on Facebook, LinkedIn, Slack, and other platforms. Without them, these platforms guess what to display — often with poor results.
How is the SEO grade calculated?
The grade is based on the presence and quality of essential SEO elements: title tag length, meta description length, Open Graph completeness, Twitter Card tags, heading structure (H1/H2), image alt text, canonical URL, and robots directives. Each element is weighted by its SEO impact.
What is a canonical URL and do I need one?
A canonical URL tells search engines which version of a page is the "official" one. This prevents duplicate content issues when the same page is accessible at multiple URLs (e.g. with and without trailing slashes, or with query parameters). Every page should have one.
Is this tool free to use?
Yes, completely free with no limits. For full-site SEO audits that scan every page automatically, check out ModusOp — it includes AI-powered fixes for meta tags, alt text, and more.