How to Run a Free SEO Audit on Any Page (in 30 Seconds)

Why audit before you optimize

It's tempting to jump straight into writing content or building backlinks. But if your on-page fundamentals are broken — missing meta descriptions, no structured data, slow page load — you're building on a shaky foundation.

An SEO audit tells you exactly what's working and what isn't, so you can fix the high-impact issues first. The problem is that most audit tools either cost money, require signup, or give you a vague "score" without actionable details.

We built a free audit tool that checks 19 SEO factors on any page in about 30 seconds. No signup, no email gate, no credit card. Here's how to use it.

Step 1: Paste your URL

Head to unranked.io/tools/audit and paste the URL you want to check. It works on any publicly accessible page — your homepage, a blog post, a competitor's landing page, whatever you're curious about.

Hit the button and the tool fetches your page, analyzes the HTML, checks site-wide resources (robots.txt, sitemap, HTTPS setup), and runs a Core Web Vitals test via Google's PageSpeed Insights API.

Step 2: Get your score

Within seconds, you'll see an overall score (0–100) based on how many checks pass, warn, or fail. But the score isn't the point — the individual checks are.

The score is calculated simply: each pass counts as 1 point, each warning as 0.5, each fail as 0. Your percentage is the total divided by the number of checks. No black-box algorithm — you can see exactly what contributes to your score.

What the audit checks

The tool runs 19 checks grouped into three categories:

On-page checks

These analyze the HTML of the specific page you submitted (see our full on-page SEO checklist for context on why each matters):

• Title tag — is it present, is it the right length (under 60 characters), does it exist?
• Meta description — present and under 155 characters?
• Heading structure — does the page have an H1? Is the hierarchy logical?
• Images — do all images have alt text?
• Links — are there internal and external links? Any broken links?
• Open Graph tags — will the page look good when shared on social media?
• Twitter Card tags — same for Twitter/X
• Canonical tag — is there one, and does it point to the right URL?
• Robots meta — is the page accidentally blocking itself from indexing?
• Structured data — does the page have JSON-LD schema markup?
• Viewport meta — is the page configured for mobile devices?
• Language attribute — does the HTML tag declare a language?

Each check shows a clear pass, warn, or fail status with a specific message explaining what it found and, if there's an issue, what to fix.

Site-wide checks

These look at your domain as a whole, not just the individual page:

• HTTPS — is the page served over HTTPS?
• HTTPS redirect — does HTTP properly redirect to HTTPS?
• Page size — is the HTML response reasonably sized?
• Sitemap.xml — does your site have one and is it accessible?
• Robots.txt — is it present and properly formatted?

AI readiness

This is something most audit tools don't check. With AI-powered search (Google AI Overviews, ChatGPT, Perplexity) becoming a significant traffic source, it matters whether AI crawlers can access and understand your content:

• llms.txt — does your site have an llms.txt file that helps AI systems understand your site?
• AI crawler access — does your robots.txt allow AI crawlers (GPTBot, ClaudeBot, etc.)?

Core Web Vitals

The tool also runs your URL through Google's PageSpeed Insights API to get real Core Web Vitals data:

• LCP (Largest Contentful Paint) — how fast your main content loads
• CLS (Cumulative Layout Shift) — how much the page jumps around while loading
• INP (Interaction to Next Paint) — how quickly the page responds to user input

These are confirmed ranking factors. If your LCP is over 2.5 seconds or your CLS is above 0.1, that's hurting your rankings — and now you know.

Step 3: Fix the red items first

The most efficient approach: focus on fails first, then warnings. Each fail is a clear issue that's actively hurting your SEO.

Common quick wins we see:

Missing meta description. Takes 30 seconds to add. Improves your click-through rate in search results because Google uses it as the snippet.

No structured data. Adding Article or FAQ schema markup can earn you rich results in Google — expandable questions, star ratings, breadcrumbs. It's a few lines of JSON-LD.

Missing alt text on images. Accessibility issue that also affects how Google understands your images. Go through each image and add descriptive alt text.

No canonical tag. If your page is accessible at multiple URLs (www vs. non-www, trailing slash vs. not), you need a canonical tag to tell Google which version is the real one. Without it, you're splitting your ranking signals.

HTTP not redirecting to HTTPS. If someone visits the HTTP version of your page and doesn't get redirected, Google might be indexing both versions. A simple 301 redirect fixes this.

Auditing competitor pages

Here's a move most people don't think of: paste a competitor's URL into the audit tool.

If they're outranking you for a keyword, running an audit on their page tells you what they're doing right (and wrong). Maybe they have structured data and you don't. Maybe their page loads in 1.5 seconds and yours takes 4. Maybe their title tag perfectly targets the keyword while yours is generic.

This isn't about copying — it's about understanding why Google prefers their page and closing the gap.

From audit to action

A single page audit gives you a clear list of what to fix. But the real power comes from auditing systematically:

1. Audit your homepage and top landing pages first
2. Fix all fails — these are the highest-impact issues
3. Work through warnings, prioritizing pages that get the most traffic
4. Re-audit after making changes to verify they took effect
5. Audit new content before publishing to catch issues early

If you're tracking keywords and want to push striking distance keywords to page one, auditing those specific pages often reveals easy fixes that make the difference between position 11 and position 8.

The audit tool is free and always will be. No signup required — just paste a URL and see what needs fixing.