How to Improve Your Website's SEO Score: A Step-by-Step Guide

Your website's SEO score is a snapshot of how well search engines can find, understand, and rank your content. A low score means missed traffic. A high score means you're doing the fundamentals right.

Here's how to diagnose and fix the most common SEO issues, step by step.

Step 1: Run a Full Website Health Check

Before fixing anything, you need to know what's broken. Run your site through a free website scanner that checks SEO, performance, security, and accessibility in one pass.

Look at your overall score. Anything below 70 means there are quick wins waiting.

Step 2: Fix Your Meta Tags

Meta tags are the first thing search engines read. The most common issues:

Missing or duplicate title tags. Every page needs a unique title under 60 characters. Include your primary keyword near the beginning.

Missing meta descriptions. These don't directly affect rankings, but they control what people see in search results. Write a compelling description under 155 characters for every page.

Missing canonical tags. If you have similar pages (like paginated content or filtered views), canonical tags tell Google which version to index.

Step 3: Fix Broken Links

Broken links hurt SEO in two ways: they waste your "link equity" and they create a bad user experience. Google notices both.

Check for:

Internal links pointing to 404 pages
External links to sites that no longer exist
Redirect chains (A → B → C should be A → C)

Fix them by updating the href or removing the link entirely.

Step 4: Improve Page Speed

Google uses Core Web Vitals as a ranking signal. The three metrics that matter:

Largest Contentful Paint (LCP) — how fast your main content loads. Target: under 2.5 seconds.

Optimize images (use WebP, set width/height attributes, lazy load below-the-fold images)
Minimize render-blocking CSS and JavaScript
Use a CDN

Cumulative Layout Shift (CLS) — how much the page jumps around while loading. Target: under 0.1.

Set explicit dimensions on images and embeds
Avoid injecting content above existing content
Use font-display: swap for web fonts

Interaction to Next Paint (INP) — how fast the page responds to clicks. Target: under 200ms.

Break up long JavaScript tasks
Reduce third-party scripts
Use requestIdleCallback for non-critical work

Step 5: Make It Mobile-Friendly

Google uses mobile-first indexing. If your site doesn't work well on phones, your rankings suffer everywhere.

Check for:

Viewport meta tag (<meta name="viewport" content="width=device-width, initial-scale=1">)
Text readable without zooming (minimum 16px body text)
Tap targets at least 48x48 pixels with adequate spacing
No horizontal scrolling

Step 6: Add Structured Data

Structured data (Schema.org markup) helps Google understand your content and can earn you rich snippets in search results. Rich snippets dramatically improve click-through rates.

Start with the basics:

Organization schema on your homepage
Article schema on blog posts (with author, date, headline)
FAQ schema on pages with frequently asked questions
Breadcrumb schema for site navigation

Use JSON-LD format. Google's Rich Results Test can validate your markup.

Step 7: Secure Your Site

HTTPS is a ranking signal. But security goes beyond just having an SSL certificate:

Ensure all resources load over HTTPS (no mixed content)
Set security headers: X-Content-Type-Options, X-Frame-Options, Content-Security-Policy
Keep your CMS and plugins updated
Implement HSTS to prevent downgrade attacks

Step 8: Improve Accessibility

Accessibility and SEO overlap significantly. Many accessibility fixes also help search engines understand your content:

Add alt text to all images (descriptive, not keyword-stuffed)
Use proper heading hierarchy (one H1, then H2s, H3s in order)
Ensure sufficient color contrast (4.5:1 ratio minimum)
Add ARIA labels to interactive elements
Make sure the site is fully navigable by keyboard

Step 9: Monitor and Iterate

SEO isn't a one-time fix. Set up a regular scanning schedule:

Weekly: Run a quick scan to catch new broken links or errors
Monthly: Full audit of scores across all categories
After every deploy: Verify nothing broke

Track your scores over time. The trend matters more than any single number.

Quick Wins Checklist

If you're short on time, focus on these high-impact fixes first:

✅ Add missing title tags and meta descriptions
✅ Fix broken internal links
✅ Compress images and convert to WebP
✅ Add alt text to images
✅ Enable HTTPS everywhere
✅ Add a sitemap.xml and submit it to Google Search Console
✅ Set up proper heading hierarchy

Each of these can be done in under an hour and will meaningfully improve your SEO score.

Want to see where your site stands right now? Run a free scan and get your score in seconds.