How to Check Website SEO

Checking your website's SEO health is the first step toward improving your search engine rankings and driving more organic traffic. Whether you're a business owner, marketer, or developer, understanding how to evaluate your site's SEO performance helps you identify problems and opportunities. According to SEMrush, 68% of all online experiences begin with a search engine, yet the average website has over 130 SEO issues that impact its ability to rank. This guide shows you exactly how to check your website's SEO — step by step.

Quick SEO Health Check: 5-Minute Assessment

Start with these quick checks before diving into a full analysis:

1. Google your brand name: Does your site appear first? If not, you have a serious indexation or authority problem.
2. Check "site:yourdomain.com" in Google: This shows how many pages Google has indexed. Compare to the number of pages on your site.
3. Test site speed: Enter your URL in Google PageSpeed Insights. Aim for scores of 90+ on both mobile and desktop.
4. Mobile test: Open your site on a phone. Is it responsive? Is text readable? Can you navigate easily?
5. Check HTTPS: Look for the padlock icon in the browser. Non-secure sites rank lower and deter visitors.

Checking Technical SEO

Google Search Console

Google Search Console (GSC) is the most important free SEO tool. Here's what to check:

• Performance Report: Shows your search queries, impressions, clicks, CTR, and average position
• Coverage Report: Identifies indexation issues — pages with errors, excluded pages, and valid pages
• Core Web Vitals: Shows if your pages pass Google's user experience metrics
• Mobile Usability: Flags mobile-specific issues affecting your site
• Sitemaps: Verify your XML sitemap is submitted and processed

Site Speed & Core Web Vitals

Use multiple tools for a comprehensive speed assessment:

• Google PageSpeed Insights: Lab and field data with specific improvement recommendations
• GTmetrix: Detailed waterfall analysis showing exactly what slows your site down
• WebPageTest: Test from multiple locations and connection speeds

Key thresholds: LCP under 2.5s, FID under 100ms, CLS under 0.1. According to Google, meeting all three Core Web Vitals thresholds can improve bounce rates by 24%.

Crawlability

Use a crawling tool (Screaming Frog free version crawls up to 500 URLs) to identify:

• Broken links (4xx errors)
• Server errors (5xx errors)
• Redirect chains (301/302 redirects)
• Orphan pages (pages with no internal links pointing to them)
• Duplicate content issues

Checking On-Page SEO

Title Tags & Meta Descriptions

Review every important page for:

• Title tags: Are they unique, under 60 characters, and include target keywords?
• Meta descriptions: Are they compelling, under 160 characters, with a call-to-action?
• Duplicates: Do any pages share the same title or description?

According to Ahrefs, Google rewrites title tags 33% of the time — usually because they're too long, irrelevant, or not compelling enough.

Content Quality

• Word count: Are your important pages substantive enough? Top-10 results average 1,447 words (Backlinko)
• Keyword usage: Is the target keyword in the H1, first paragraph, and naturally throughout the content?
• Heading structure: Is there one H1 per page with logical H2/H3 hierarchy?
• Image optimization: Do images have alt text, and are they compressed?
• Internal links: Are you linking between related pages to distribute authority?

Checking Your Backlink Profile

Backlinks are critical for SEO success. Use these free and paid tools:

Free Options

• Google Search Console: Links report shows who links to you
• Ahrefs Webmaster Tools: Free backlink checker for verified sites
• Moz Link Explorer: 10 free link queries per month

What to Look For

• Total referring domains: More unique linking domains generally means higher authority
• Link quality: Are links from reputable, relevant websites?
• Anchor text: Is there a natural distribution of branded, generic, and keyword anchors?
• Toxic links: Are there spammy links that could trigger penalties?
• Growth trend: Are you consistently earning new links, or has growth stalled?

According to Backlinko, the #1 Google result has an average of 3.8x more backlinks than results in positions 2–10.

Free SEO Checking Tools

You don't need expensive tools to start checking your SEO. Here are the best free options:

• Google Search Console: Essential for every website — indexation, performance, and technical issues
• Google Analytics: Traffic analysis, user behavior, and conversion tracking
• Google PageSpeed Insights: Speed and Core Web Vitals testing
• Google Rich Results Test: Validate structured data markup
• Screaming Frog (Free): Crawl up to 500 URLs for technical issues
• Ubersuggest (Free tier): Basic keyword research and site audit
• Ahrefs Webmaster Tools: Free site audit and backlink data for verified sites

Creating an SEO Action Plan

After checking your SEO, prioritize fixes based on impact and effort:

Priority 1: Critical Issues (Fix Immediately)

• Pages blocked from indexing that should be indexed
• Broken pages returning 404 errors
• Missing HTTPS
• Severe speed issues (LCP over 4 seconds)

Priority 2: Important Improvements (Fix Within 30 Days)

• Missing or duplicate title tags and meta descriptions
• Missing H1 tags or multiple H1s per page
• Thin content pages (under 300 words)
• Missing alt text on images

Priority 3: Optimization Opportunities (Ongoing)

• Content expansion and improvement
• Internal linking optimization
• Structured data implementation
• Link building campaigns

For a comprehensive analysis, consider a professional website SEO analysis or SEO audit.

Frequently Asked Questions

How often should I check my website's SEO?

Monitor key metrics (traffic, rankings, Core Web Vitals) weekly. Perform a comprehensive SEO check quarterly. Run immediate checks after any major website changes, Google algorithm updates, or unexpected traffic drops.

Can I check my website's SEO for free?

Yes. Google Search Console, Google Analytics, and Google PageSpeed Insights are completely free and provide the most important SEO data. Additional free tools like Screaming Frog (limited) and Ubersuggest (limited) supplement these core tools.

What's the most important SEO metric to track?

Organic traffic is the most important overall metric, as it directly reflects your search visibility. Supporting metrics include keyword rankings, conversion rate from organic traffic, Core Web Vitals scores, and indexation coverage.

What should I do if my traffic suddenly drops?

Check Google Search Console for manual actions or security issues, review recent algorithm updates, check for technical issues (accidental noindex, broken pages), and review any recent website changes. Sudden drops often have specific, identifiable causes.

Do I need professional help to check my SEO?

Basic checks are manageable with free tools. However, a professional SEO expert can identify issues you might miss, provide strategic recommendations, and help prioritize improvements for maximum impact.