How to Check Your Website SEO Score with OpDeck's Audit Tool

If you want to know how to check your website's SEO score, you're in the right place. Whether you're a business owner trying to understand why your site isn't ranking, a developer handing off a project, or a marketer preparing a client report, getting a clear picture of your site's SEO health is the first step toward fixing what's broken and doubling down on what works. This guide walks you through exactly how to do that — practically, thoroughly, and without the fluff.

What Does an SEO Score Actually Mean?

Before diving into the how, it's worth spending a moment on the what. An SEO score is a numerical representation of how well your website is optimized for search engines. It typically aggregates dozens of individual signals — things like meta tag quality, heading structure, content length, image optimization, mobile readiness, and page speed — into a single number, usually on a scale of 0 to 100.

That number is useful as a quick health check, but the real value is in the breakdown. A score of 62 doesn't tell you much on its own. Knowing that you scored 62 because your meta descriptions are missing on 40% of your pages, your H1 tags are duplicated across three templates, and your images lack alt text — that's actionable.

A good SEO audit tool doesn't just hand you a score. It tells you:

What's broken and how badly it hurts you
What's present but needs improvement
What you're doing well and should maintain
Prioritized recommendations so you know where to start

How to Check Your Website SEO Score with OpDeck

The fastest and most straightforward way to check your website's SEO score is with the SEO Audit tool on OpDeck. Here's a step-by-step walkthrough.

Step 1: Enter Your URL

Go to the OpDeck SEO Audit tool and paste in the full URL of the page you want to analyze. This can be your homepage, a landing page, a blog post, or any other public-facing URL. Make sure you're using the canonical version of the URL — typically the https:// version with or without www, whichever your site actually serves.

For example:

https://www.yoursite.com/
https://www.yoursite.com/blog/your-post-slug
https://shop.yoursite.com/products/category-name

Step 2: Run the Audit

Click the analyze button and give the tool a few seconds to run. Behind the scenes, the tool is fetching your page, parsing the HTML, analyzing meta tags, evaluating heading hierarchy, checking content signals, inspecting image attributes, and cross-referencing dozens of SEO factors simultaneously.

Step 3: Read Your Overall Score

Once the audit completes, you'll see your overall SEO score at the top. Below that, the tool breaks the score down into individual categories. This is where the real work begins.

Step 4: Review the Category Breakdown

The SEO Audit tool evaluates your page across several core categories. Let's look at what each one means and what to do when something is flagged.

Understanding the SEO Audit Categories

Meta Tags

Meta tags are the text elements in your HTML <head> section that tell search engines and social platforms what your page is about. The audit checks for:

Title tag — This is the most important on-page SEO element. It appears as the clickable blue link in search results. The tool checks whether it exists, whether it's within the recommended character range (roughly 50–60 characters), and whether it contains meaningful keywords.

If your title tag is missing, add one immediately. If it's too long, it gets truncated in search results, which reduces click-through rates. If it's too short or generic (like "Home" or "Page 1"), rewrite it to clearly describe the page's content and target keyword.

Meta description — This doesn't directly affect rankings, but it heavily influences click-through rates. The tool checks whether it exists and whether it's within the recommended range (roughly 150–160 characters). A good meta description acts like ad copy — it should tell the searcher exactly what they'll get by clicking.

<!-- Bad -->
<meta name="description" content="Welcome to our website.">

<!-- Good -->
<meta name="description" content="Learn how to check your website's SEO score with a free audit tool. Get a full breakdown of meta tags, headings, content, and more in seconds.">

Canonical tag — This tells search engines which version of a URL is the "official" one. If your site serves the same content at multiple URLs (with and without trailing slashes, with and without www, HTTP vs HTTPS), a canonical tag prevents duplicate content issues.

<link rel="canonical" href="https://www.yoursite.com/your-page/">

Heading Structure

Headings (H1 through H6) create the semantic hierarchy of your content. Search engines use them to understand what a page is about and how the content is organized.

The audit checks for:

H1 presence — Every page should have exactly one H1 tag. It should contain your primary keyword and clearly describe the page topic.
H1 uniqueness — If multiple pages share the same H1, that's a problem. Each page needs a distinct H1.
Heading hierarchy — Headings should flow logically: H1 → H2 → H3. Skipping levels (going from H1 directly to H4) confuses both users and crawlers.
Keyword presence in headings — Your target keyword (or close variations) should appear in your H1 and ideally in at least one H2.

A common mistake is using headings purely for visual styling — making text big and bold by slapping an H2 on it — rather than using them to structure content. Your CSS should handle visual styling; headings should reflect content hierarchy.

Content Analysis

Content signals are a major part of your SEO score. The tool analyzes:

Word count — Thin content (pages with very little text) tends to rank poorly. For informational pages, aim for at least 600–800 words. For competitive topics, 1,500+ words is often necessary to compete. That said, word count is a proxy — quality and relevance matter more than raw length.

Keyword density — The tool checks whether your target keyword appears in the body content at a reasonable frequency. Over-stuffing keywords (keyword density above 3–4%) can trigger spam filters. Under-using them means the page may not rank for that term at all.

Content readability — Some tools score readability using metrics like Flesch-Kincaid. The OpDeck audit looks at content structure and whether the page has enough substantive text to be considered valuable.

Image alt text — Every image should have a descriptive alt attribute. This serves two purposes: it helps visually impaired users understand the image, and it gives search engines context about what the image depicts. Missing alt text is one of the most common (and easiest to fix) SEO issues.

<!-- Bad -->
<img src="product-photo.jpg">

<!-- Also bad -->
<img src="product-photo.jpg" alt="image1">

<!-- Good -->
<img src="product-photo.jpg" alt="Blue wireless noise-cancelling headphones on a white background">

Links

The audit evaluates both internal and external links on your page.

Internal links — Links to other pages on your own site help distribute "link equity" and help users (and crawlers) navigate your site. Pages with zero internal links are often crawled less frequently and rank lower.

External links — Linking out to authoritative, relevant sources is a positive signal. It shows your content is well-researched and connected to the broader web. However, all external links should be checked for relevance and credibility.

Broken links — Links that point to 404 pages are a poor user experience and waste crawl budget. The audit flags these so you can fix or remove them.

Anchor text quality — Generic anchor text like "click here" or "read more" provides no context to search engines. Descriptive anchor text like "how to optimize meta descriptions" is far more useful.

Page Speed and Technical Signals

While the SEO Audit tool focuses on on-page factors, page speed is closely tied to SEO performance. Google has explicitly included Core Web Vitals as ranking factors, which means slow pages are penalized in search results.

If your SEO audit surfaces speed-related issues, it's worth running a dedicated performance test. The Website Performance Analyzer gives you a Lighthouse-based breakdown of load time, First Contentful Paint, Largest Contentful Paint, and other Core Web Vitals metrics.

Common SEO Issues and How to Fix Them

Here's a quick reference guide to the most common issues the SEO audit flags and what to do about each:

Missing or Duplicate Title Tags

Problem: No title tag, or the same title tag used on multiple pages.

Fix: Write a unique, descriptive title for every page. Use your primary keyword near the beginning. Keep it under 60 characters.

<title>How to Check Website SEO Score | Free SEO Audit Tool - OpDeck</title>

Missing Meta Descriptions

Problem: No meta description, or the same one used across many pages.

Fix: Write a unique meta description for each important page. Make it compelling and include a call to action where appropriate.

No H1 Tag

Problem: The page has no H1, or has multiple H1s.

Fix: Add a single, clear H1 that includes your target keyword. Remove or demote any duplicate H1s.

Images Without Alt Text

Problem: Images have empty or missing alt attributes.

Fix: Add descriptive alt text to every meaningful image. Decorative images (spacers, icons) can use alt="" to tell screen readers to skip them.

Thin Content

Problem: Page has fewer than 300 words.

Fix: Expand the content to cover the topic more thoroughly. Add FAQs, examples, step-by-step instructions, or supporting context.

No Canonical Tag

Problem: The page is accessible at multiple URLs without a canonical tag.

Fix: Add a canonical tag pointing to the preferred URL version.

How to Track SEO Score Improvements Over Time

Checking your SEO score once is useful. Checking it regularly — and tracking changes — is how you actually improve rankings.

Here's a practical workflow:

Baseline audit — Run a full SEO audit on your key pages and record the scores.
Prioritize fixes — Focus on high-impact issues first: missing title tags, missing H1s, broken links, missing alt text.
Implement changes — Make the fixes in your CMS or codebase.
Re-audit — Run the audit again after changes are deployed to confirm improvements.
Expand coverage — Once your main pages are clean, audit secondary pages, blog posts, and product pages.
Schedule regular checks — SEO isn't a one-time task. Content changes, template updates, and new pages can introduce regressions. Audit monthly or after major site changes.

Beyond the SEO Score: Other Factors That Affect Rankings

Your on-page SEO score is one piece of a larger puzzle. To get a complete picture of your site's search performance, you should also look at:

Mobile-friendliness — Google uses mobile-first indexing, meaning it primarily crawls and ranks the mobile version of your site. If your pages aren't mobile-friendly, your rankings will suffer regardless of how clean your meta tags are. Check this with the Mobile Insights tool.

SSL/HTTPS — Google has used HTTPS as a ranking signal since 2014. If your site is still on HTTP, that's a problem. Verify your SSL certificate status with the SSL Certificate Checker.

Structured data — Adding JSON-LD structured data to your pages helps search engines understand your content and can unlock rich results (star ratings, FAQs, recipe cards, etc.) in the SERPs. Use the JSON-LD Structured Data Generator to create valid schema markup.

Sitemap — A well-structured sitemap helps search engines discover and crawl all your pages efficiently. If you don't have one, the Sitemap Generator can create one for you.

Security headers — Weak security configurations can affect both user trust and search rankings. The Vulnerability Scanner checks for missing security headers and other common vulnerabilities.

How to Check Your Website SEO Score for Multiple Pages

If you're managing a large site, auditing page by page manually isn't scalable. Here's a smarter approach:

Identify your most important pages — Start with pages that drive the most traffic, your homepage, main service or product pages, and top-performing blog posts.
Audit them first — These pages have the most to lose from SEO issues and the most to gain from fixes.
Work through categories — After key pages, audit by template type. If your blog post template has a structural issue (like a missing H1 in the theme), fixing the template fixes every post at once.
Use crawl data to prioritize — Tools like Google Search Console show you which pages receive impressions but have low click-through rates — a strong signal that the title tag or meta description needs work.

Conclusion

Knowing how to check your website's SEO score is the foundation of any serious SEO effort. But the score itself is just the starting point — the real value is in understanding what's driving that score, which issues matter most, and how to fix them systematically.

The SEO Audit tool on OpDeck gives you an instant, detailed breakdown of your page's SEO health across meta tags, headings, content, links, and more — for free, with no account required. Run your first audit today, work through the recommendations, and re-check your score after you've made improvements. Consistent, methodical attention to on-page SEO is one of the most reliable ways to improve your search visibility over time.

Head over to OpDeck and run your SEO audit now — it takes about ten seconds to get started.