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When we talk about SEO (Search Engine Optimization), most people think about keywords and content. But what many forget is the technical side of SEO—things happening behind the scenes that help your website rank better on Google. This is called Technical SEO.
Technical SEO focuses on improving the structure and performance of your website so that search engines can crawl, index, and rank your site more efficiently. It deals with page speed, mobile-friendliness, broken links, duplicate content, security, and more.
If you ignore technical SEO, your content might not even be seen by search engines, no matter how good it is.
That’s where technical SEO audit tools come in. These tools help you find and fix hidden issues on your website. In this article, we’ll cover the best tools you should use to perform a technical SEO audit and boost your site’s performance.
You must have heard about Google Search Console that shows how your website appears in search results.
GSC helps you monitor and fix many technical issues:
Once your site is verified in GSC, you can explore the “Pages,” “Experience,” “Mobile Usability,” and “Indexing” sections to find issues. Fix the ones marked in red or warning signs.
Pro Tip: Submit a sitemap through GSC to help Google discover your pages faster.
Screaming Frog is a downloadable software that crawls your entire website just like search engine bots.
It gives a complete technical breakdown of your site:
Download Screaming Frog, enter your website URL, and start the crawl. Once done, explore different tabs like "Response Codes," "Page Titles," and "Redirects."
The free version lets you crawl up to 500 URLs. For larger websites, you’ll need the paid version.
Pro Tip: Export reports into Excel to easily sort and fix issues one by one.
Ahrefs is a powerful SEO tool that offers full site audits along with backlink and keyword research.
Go to the “Site Audit” tool inside Ahrefs, add your site, and let it crawl. It will generate a health score and list all technical errors grouped by priority.
You can also spy on your competitors’ backlink profiles to find linking opportunities.
Pro Tip: Run audits every week to keep your site technically healthy.
SEMrush is an all-in-one marketing toolkit, and its “Site Audit” feature is especially helpful for technical SEO.
SEMrush explains each error and gives actionable tips on how to fix it. It also shows the severity level—errors, warnings, and notices.
Pro Tip: Use the “Compare Crawls” option to see improvements over time.
GTmetrix analyzes your website’s loading speed and performance.
Google uses site speed as a ranking factor. A slow website leads to high bounce rates and low rankings.
Enter your URL and let GTmetrix test it. You’ll get a performance score with detailed fixes.
Pro Tip: Run tests from multiple locations to understand how speed differs across regions.
Google PageSpeed Insights gives you both lab and field data on how fast your page loads on desktop and mobile.
Moz Pro’s Site Crawl feature identifies technical issues on your site and offers simple guidance for fixing them.
Start a crawl under “Site Crawl,” and Moz will give a health score, plus detailed issue reports.
Sitebulb is a desktop software similar to Screaming Frog but focuses more on visual reports and insights.
It doesn’t just show errors—it gives you context, suggestions, and why they matter.
Ryte is a website quality management platform that includes SEO audits, content analysis, and monitoring tools.
Sign up, connect your website, and run a full analysis. You can access a dashboard with technical SEO scores.
DeepCrawl is a cloud-based tool designed for large-scale, complex websites.
Ahrefs also offers a free version called Ahrefs Webmaster Tools (AWT) that’s great for basic site audits.
Google ranks mobile-friendly websites higher in mobile searches. With most traffic now from phones, this is essential.
Just paste your URL, and Google will run a live test.
Technical SEO may sound complicated, but once you start using the right tools, everything begins to make sense. Think of your website as a house. You might have amazing furniture (your content), but if the foundation is weak (your technical setup), things will fall apart sooner or later.
The tools we’ve discussed—like Google Search Console, Screaming Frog, Ahrefs, SEMrush, GTmetrix, and others—act like expert inspectors. They help you spot cracks in the foundation, leaky pipes, broken windows, and anything else that might be silently hurting your website’s performance.
If you're just starting out, begin with the free tools. Google Search Console, PageSpeed Insights, and Ahrefs Webmaster Tools give you plenty of useful data to improve your site without spending a dime. These can help you fix common problems like slow-loading pages, crawl errors, or mobile usability issues.
As your website grows and you want deeper insights, tools like Screaming Frog, SEMrush, and Sitebulb offer advanced reports and ongoing tracking to keep your site in top shape. They not only identify errors but also guide you through how to fix them.
Remember, technical SEO isn’t a one-time job. The web is always changing—new updates from Google, new competitors entering your space, and even new pages or plugins added to your own site. That’s why regular audits using these tools are essential to stay ahead.
The real key to success is consistency. Don’t wait for problems to get worse. Audit your site regularly, fix issues early, and focus on improving the user experience. A technically strong website doesn’t just rank better—it loads faster, works smoothly on all devices, and gives your visitors a reason to stay longer.
So, whether you're managing a personal blog, a business website, or an eCommerce store, make technical SEO part of your regular routine. Use these tools to uncover hidden problems, make smarter decisions, and ensure your website runs like a well-oiled machine.
Because when your technical SEO is strong, everything else—rankings, traffic, conversions—gets a whole lot easier.
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