SEO Score Calculator

An SEO score is a composite metric that evaluates how well a web page follows search engine optimization best practices. While no single number can perfectly predict search rankings -- which depend on hundreds of factors including backlinks, domain authority, content relevance, and competitive landscape -- an SEO score provides a useful baseline for identifying optimization gaps and tracking improvements over time. This calculator evaluates 30 specific factors across four categories that represent the most impactful on-page SEO practices in 2026.

The four categories in this assessment -- On-Page SEO, Technical SEO, Content Quality, and AIO Readiness -- represent the full spectrum of factors that page-level optimization can influence. On-page factors like title tags, meta descriptions, and heading structure tell search engines what your page is about. Technical factors like HTTPS, mobile responsiveness, and structured data ensure search engines can properly access and understand your site. Content quality factors determine whether your content deserves to rank. And AIO readiness factors prepare your content for the growing role of AI in search results.

On-Page SEO: The Foundation of Every Page

On-page SEO encompasses the elements that directly appear on your web page and communicate its topic, relevance, and structure to search engines. The title tag is arguably the single most important on-page element -- it appears in search results, browser tabs, and social shares, and it is one of the strongest relevance signals Google uses. A unique, keyword-relevant title under 60 characters is essential for every page.

The meta description, while not a direct ranking factor, significantly impacts click-through rate from search results. A compelling meta description under 160 characters that includes your target keyword and a clear value proposition can dramatically increase the percentage of searchers who click your result over competitors. The H1 tag reinforces the page topic and should be used exactly once per page, with H2-H6 subheadings creating a logical content hierarchy that both users and search engines can follow.

Internal and external links on a page serve complementary purposes. Internal links distribute link equity and establish topical relationships between your pages -- the internal link analyzer can help audit your current link structure. External links to authoritative sources signal that your content is well-researched and part of the broader information ecosystem. Both types of links strengthen the overall quality signals of your page.

Technical SEO: The Infrastructure That Enables Ranking

Technical SEO ensures that search engines can access, crawl, and index your content correctly. HTTPS encryption has been a confirmed ranking signal since 2014 and is now considered a baseline requirement. Mobile responsiveness is equally critical -- Google uses mobile-first indexing, meaning it primarily crawls and indexes the mobile version of your site. If your site is not mobile-friendly, it will struggle to rank regardless of content quality.

A robots.txt file tells search engines which parts of your site to crawl, while an XML sitemap provides a roadmap of all your important pages. Canonical tags prevent duplicate content issues by specifying the preferred URL when multiple URLs serve similar content. Structured data (schema markup) helps search engines understand your content type and can enable rich results -- our schema markup generator makes implementation straightforward.

Page speed under 3 seconds is important for both user experience and SEO. Slow pages have higher bounce rates, lower engagement, and may be penalized in rankings, especially through Core Web Vitals signals. Broken links create dead ends for both users and search engine crawlers, wasting crawl budget and creating poor user experiences.

Content Quality: The Most Important Ranking Factor

Google has consistently emphasized that content quality is the most important ranking factor. Original, valuable content that genuinely satisfies user search intent will outperform technically perfect pages with thin or duplicated content. The content quality questions in this calculator evaluate whether your content meets the fundamental quality thresholds that Google expects from ranking pages.

Search intent alignment is perhaps the single most important content quality factor. If a user searches "how to fix a leaky faucet" and your page tries to sell plumbing services instead of explaining the fix, it fails to match the informational intent. Google is sophisticated at detecting intent mismatches and will not rank pages that do not satisfy what the searcher is looking for, regardless of how well-optimized the page is otherwise.

Using your target keyword in the first 100 words signals relevance immediately. Related keywords (also called LSI keywords) throughout the content demonstrate topical depth. Fresh content (updated within the last 12 months) signals relevance for queries where information changes over time. Multimedia elements like images, videos, and tables enhance user engagement and can qualify your content for additional SERP features like image packs and video carousels.

AIO Readiness: Preparing for AI-Powered Search

The newest dimension of SEO optimization is preparing your content for AI Overviews (AIO) and other AI-powered search features. Google AI Overviews now appear for a significant percentage of searches, and the content they cite tends to share specific structural characteristics. Pages that use clear question-and-answer formats, well-labeled sections, concise factual statements, and FAQ schema markup are more likely to be cited in AI-generated summaries.

The llms.txt file is an emerging standard that helps large language models understand your site structure and content. While still new, it represents the direction search is heading -- proactive optimization for AI citation. Our llms.txt generator can help you create one, and our AIO optimization service provides comprehensive AI search optimization. For a deeper understanding of the AIO landscape, explore our AIO optimization guide.

This calculator gives you a snapshot of a single page. For a comprehensive, site-wide SEO assessment that includes backlink analysis, competitor benchmarking, and strategic recommendations, our SEO audit service provides a complete picture of your optimization opportunities across every page and ranking factor.