Step by Step Technical SEO Audit Checklist for Beginners

https://www.pmgs.com.au/blog/step-by-step-technical-seo-audit-checklist-for-beginners/

A technical SEO audit helps explain how well a website is set up for search engines and users. It focuses on whether pages can be crawled, indexed, and understood clearly by platforms like Google. A well-designed technical setup supports faster page load times, a clear site structure, and a smooth mobile experience. This guide walks through the key checks in a simple, clear order, using examples beginners can follow. By understanding and improving these basics, you strengthen site health, enhance the user experience, and create better conditions for sustained visibility in search results over time.

Key Elements to Focus on in a Technical SEO Audit

Here’s a quick look at the key areas you should focus on during a technical SEO audit:

  • Crawlability and Indexing 

Ensure search engines can access and index your site’s pages.

  • Site Structure

A well-organised structure helps both users and search engines navigate your site smoothly.

  • Page Speed 

Faster loading pages improve user experience and boost SEO rankings.

  • Mobile Usability

With the majority of searches happening on mobile, it’s crucial that your site works well on all devices.

  • HTTPS and Security

Secure websites build trust with users and search engines alike.

  • Duplicate Content

Ensure there are no duplicate pages that could confuse search engines.

These steps are essential in setting the foundation for a site that is optimised for both users and search engines. Now, let’s walk through each step of the technical SEO audit to help you get started.

What Is a Technical SEO Audit

A technical SEO audit is a way to check how well a website is set up behind the scenes. It examines whether search engines like Google can crawl pages, read their content, and include them in search results. Rather than focusing on keywords or writing, it reviews the foundation that supports the site. The audit covers crawl access, indexing status, site structure, page speed, mobile usability, and basic security. Tools like Google Search Console help show how search engines view the site and highlight issues such as crawl errors and unindexed pages. When these basics are in place, a website becomes easier to use and better positioned for steady visibility in search results.

Why Technical SEO Matters Before Content and Links

Technical SEO provides the structure that allows a website to perform well in search results. Before content can be discovered or links can add value, search engines need clear access to pages and a setup they can understand. When a site is organised properly, platforms like Google can navigate pages smoothly and display the right content in search results.

Technical setup also plays a key role in how people experience a website. Fast loading pages, clear page paths, secure HTTPS access, and a mobile-friendly layout make it easier for users to browse and stay engaged. These elements support both site performance and trust. By focusing on technical basics first, you create a strong foundation that allows content and links to work together and support steady search visibility over time.

What You Need Before Starting a Technical SEO Audit

Before you start a technical SEO audit, make sure you have a few basics ready. You do not need expert skills or complex tools. You just need to see how your website is working and how search engines view it. First, get access to Google Search Console. It shows how Google crawls and indexes your site and points out pages that may not appear in search results. This makes it the best place to begin. It also helps to know where your XML sitemap is and to check your robots.txt file. These guide search engines through your site. If you want extra detail, tools like SEMrush or SEMrush Site Audit can help, but they are optional. A simple list of issues and notes on what to fix is often enough to get started.

Step by Step Technical SEO Audit Checklist

This checklist helps you review a website in a clear and organised way. Each step focuses on one area at a time, so you are not jumping between tasks or guessing what to fix first. You begin with basic access and visibility, then move through structure, performance, and usability.

Step 1: Check If Google Can Crawl Your Website

This step helps you see whether search engines can reach your website and view its pages. When pages are easy to access, they are more likely to appear in search results.

Start with a quick search check

Open Google and type: site:yourdomain.com

This shows which pages are currently visible in Google search. It gives you a quick snapshot of how your site is being picked up.

If you see your main pages listed, that is a good sign. If the list looks smaller than expected, it simply means some pages may need a closer look later.

Check how Google views your pages

Next, open Google Search Console and go to the Pages section.

This area shows how your pages are being discovered and grouped. It helps you understand which pages are already recognised and which ones may need attention. You do not need to fix anything yet. Just observe and take notes.

Review your robots.txt file

Visit: yourdomain.com/robots.txt

Review your robots.txt file

Visit: yourdomain.com/robots.txt

This file guides search engines on which parts of your site they can crawl. A quick look helps confirm that important pages are open and accessible.

At the end of this step, you should have a basic idea of how visible and accessible your site is. This creates a solid starting point before moving on to the next checks.

Step 2: Review robots.txt and Meta Robots Tags

This step helps you check whether your website is open and visible to search engines. Small settings here can affect which pages appear in search results, so it is worth reviewing them early.

Check your robots.txt file

Open your robots.txt file by visiting: yourdomain.com/robots.txt

This file guides search engines like Google on which parts of your site they can view. You do not need to understand every line. Just make sure important sections, such as main pages and content areas, are not blocked.

Check page settings

Some pages include a setting that controls whether they appear in search results. This is often added during site updates or redesigns.

Open a few important pages and confirm they are allowed to show in search. This quick check helps avoid surprises later.

Use Google Search Console to confirm

In Google Search Console, open the Pages section. This view shows how pages are grouped and whether any are restricted by site rules.

At this stage, you are only observing and taking notes. No changes are needed yet.

Step 3: Check If Your Pages Are Indexed Properly

Once search engines can reach your site, the next step is to see which pages are already included in search results. This helps you understand what is visible today and how your site is being recognised.

Start with a simple search

Open Google and search for: site:yourdomain.com

This gives you a quick view of the pages currently showing in Google search results. Look for familiar pages such as your homepage and key service pages. This step is only about visibility, not quality.

Review page status in Google Search Console

Next, open Google Search Console and go to the Pages section.

Here, pages are grouped by how they are handled. This view helps you see patterns across your site and understand how different sections are treated. It gives you a clearer picture of how search engines are reading your pages.

You can also use the page inspection tool on a few important pages. This shows how a page is currently viewed and whether it is included in search results.

Make clear notes

At this stage, simply write down what you see. For example:

  • Pages that are showing as expected
  • Sections that follow the same pattern
  • Pages you may want to review later

You are building awareness here, not making changes yet.

Step 4: Check How Google Renders Your Pages

This step is about how your pages look to search engines. Sometimes a page looks fine to visitors, but parts of it may not load the same way for search engines. Checking this helps you understand what is actually being picked up.

Start by opening Google Search Console and inspecting an important page, such as your homepage or a main service page. This shows how Google views the page.

When you look at the page, focus on the basics. Check that the main text is visible, that images appear where they should, and that menus or links are visible. You do not need to worry about technical details. If the page looks complete and easy to read, that is a good sign.

It is also helpful to check a few different pages, like a blog post or another service page. This gives you confidence that pages across the site are displayed consistently.

Step 5: Confirm One Preferred Website Version

This step helps ensure your website uses a single, clear address everywhere. When a site can be reached in more than one way, search engines may treat those versions separately.

Open your site in a browser and try different versions, such as http and https, and with and without www. All of them should lead to the same main address, usually the HTTPS version. This helps search engines like Google recognise which version to show in search results.

Next, check a few key pages and ensure the web address is consistent across the site. This includes whether the address ends with a slash. You can also confirm this setup in Google Search Console, where your site version should appear clearly.

Step 6: Review Your Site Structure and Navigation

This step looks at how your website is organised and how easy it is to move from one page to another. A clear structure helps visitors find information quickly and helps search engines like Google understand how your pages are connected.

Start by checking your main menu. Important pages, such as services or key information, should be easy to find without having to click through many pages. If something feels hard to reach, it is worth noting.

Next, move through the site as if you were a visitor. Pages should follow a clear and simple path, and related pages should link to each other naturally. This makes browsing easier and keeps people on the site longer.

Also, look at page headings and menu labels. They should be clear and easy to understand, without being confusing or repetitive.

Step 7: Find Orphan Pages With No Internal Links

This step looks for pages that are not connected to the rest of your website. Orphan pages are pages that exist but are not linked from menus, other pages, or the footer. Because of this, they are easy to miss.

Start by thinking about your main pages. If a page does not appear in your menu or is not linked from any other page, it may be sitting on its own. Older blog posts, landing pages, or pages created for past campaigns are common examples.

You can also open Google Search Console and review the Pages section. This helps you spot pages that receive very little activity, which can sometimes point to pages that are not well linked.

Tools like SEMrush or SEMrush Site Audit can show a list of pages with no internal links. These tools are helpful, but not essential.

When you find an orphan page, decide what to do next. If the page is still helpful, add links to it from related pages. If it is no longer needed, removing it can help keep the site tidy.

Step 8: Find and Fix Broken Pages and Redirects

This step helps ensure that every page and link on your site leads visitors to the right place. Clear paths make it easier for people to move around your site and for search engines to follow your pages.

Start by browsing your website as a visitor. Click through menus, buttons, and links on important pages. This helps you spot links that may no longer point to the page you expect. Make a short note of anything that feels out of place.

Next, open Google Search Console and check the Pages section. This view can highlight pages that are no longer active or need updating. It is especially useful for finding older pages that were previously used.

Redirects are also worth reviewing. A redirect works best when it takes people straight to the most relevant page. Simple, direct paths create a smoother experience and help search engines, like Google, move through your site more easily.

When you find a page that is no longer needed, decide on the best next step. If there is a similar page, point visitors there. If the page has no purpose anymore, removing it can help keep the site clean and organised.

Step 9: Identify Soft 404 Pages

This step helps you review pages that load normally and may benefit from clearer guidance for visitors. As a website grows and changes, some pages simply need a quick review to stay aligned with the rest of the site.

Start by opening Google Search Console and going to the Pages section. Look for pages that contain only a small amount of information or feel less detailed than others. These pages are often created earlier and can be updated to match current content.

Next, open a few of these pages in your browser. Read them as if you are visiting for the first time. Check whether the page explains its topic clearly and helps the visitor understand what to do next.

Many pages can be enhanced by adding more context, improving layout, or linking to related pages. If a page no longer aligns with your site’s focus, redirecting visitors to a more relevant page can be a practical option. Reviewing pages like this helps keep your site clear, consistent, and easy to follow for visitors and search engines like Google.

Step 10: Check Canonical Tags and Duplicate Pages

This step helps keep your website clear and easy for search engines to understand.

Sometimes, the duplicate content can be accessed through more than one web address. When this happens, search engines like Google may struggle to decide which page should appear in search results. This can split visibility and reduce overall search performance.

Start by reviewing a few important pages on your site. Look for pages that feel almost identical but use slightly different URLs. This often happens because of tracking links, filters, or small changes in the page address.

Next, open Google Search Console and inspect one of these pages. This shows which version Google treats as the main page. The goal is simple. Each piece of content should clearly point to one primary page.

At this stage, you do not need to fix anything yet. Just make notes. Write down where duplicate pages exist and which version should be treated as the main one. Cleaning this up later helps improve site health, keeps your structure organised, and makes your site easier for both users and search engines to follow.

Step 11: Review URL Parameters and Pagination Issues

This step helps you understand how extra page versions are created on your site.

Some websites generate different URLs when filters, sorting options, or page numbers are used. To visitors, these pages often look the same. To search engines, they can appear as many separate pages, spreading attention across your site.

Start by browsing your site and watching the web address as you click filters, sort options, or move between pages. If the URL changes but the content stays mostly the same, make a note of it.

Next, open Google Search Console and check the Pages section. Look for groups of URLs that follow a similar pattern. This helps you spot areas where search engines may be spending time on pages that do not add much value.

Pagination also needs a quick review. If your content spans several pages, each page should feel helpful and easy to navigate. Visitors should be able to move forward and back without confusion, and important content should not be buried too deeply.

At this stage, you are only observing. Write down where extra URLs appear and which pages matter most. This information will help you make clearer decisions later and keep your site organised for both users and search engines like Google.

Step 12: Review Your XML Sitemap

This step helps search engines understand which pages on your site matter most. An XML sitemap is simply a list of essential pages that guides search engines as they move through your website.

Start by checking whether your XML sitemap exists. You can usually find it by visiting yourdomain.com/sitemap.xml. When it opens, you should see a list of page addresses. These should match the key pages you want people to find in search.

Next, open Google Search Console and go to the Sitemaps section. This shows whether Google has found and read your sitemap. It also highlights if any pages in the sitemap need attention.

Take a moment to review what is included. The sitemap should focus on useful, current pages. Pages that no longer serve a purpose do not need to be listed. Keeping the sitemap tidy helps search engines focus on the right content.

At this stage, you are only reviewing. Make notes if you notice pages missing, pages that feel unnecessary, or anything that looks out of place. A clear sitemap supports better crawling and keeps your site organised.

Step 13: Check Page Speed and Core Web Vitals Basics

This step looks at how fast your pages load and how smooth they feel to use. Page speed plays a big role in user experience, especially on mobile devices.

Slow pages can make people lose interest quickly. Search engines like Google also use speed-related signals to understand how user-friendly a site is. This is where Core Web Vitals come in.

Start by opening Google Search Console and going to the Core Web Vitals section. This report groups pages by performance. You do not need to understand every metric. Just focus on whether pages are marked as performing well or needing improvement.

Next, open a few key pages on your site and pay attention to how they load. Notice how quickly text appears, how images settle, and whether the page feels steady as it loads. These simple checks help you understand real user experience.

At this stage, you are only reviewing and taking notes. Write down pages that feel slower or less smooth than others. Fixing speed issues can come later, but knowing where they exist is an important first step.

Step 14: Test Mobile Friendliness

This step checks how well your website works on mobile devices. Many people now browse on phones, so pages need to be easy to read and use on smaller screens.

Start by opening a few important pages on your phone or by resizing your browser window. Look at how the page fits the screen. Text should be easy to read without zooming, buttons should be easy to tap, and menus should be simple to use.

Next, open Google Search Console and go to the mobile usability section. This report shows pages that may be harder to use on mobile screens. You do not need to fix anything yet. Just note which pages need attention.

Pay attention to how pages load and scroll. A mobile-friendly site should feel smooth and clear, without elements overlapping or jumping around. This helps visitors stay longer and makes browsing more comfortable.

Search engines like Google place strong importance on mobile experience, so reviewing this step carefully is worth the time.

Step 15: Check Basic On Page Technical Elements

This step focuses on the small page details that help search engines understand each page’s content. These elements also shape how your pages appear in search results.

Start with page titles. Each important page should have a clear title that matches its topic. Titles should be easy to read and clearly describe the content.

Next, look at meta descriptions. These short summaries appear under the page title in search results. While they do not directly affect rankings, they help people decide whether to click. Make sure they clearly explain what the page offers.

Check your headings next. The main heading should explain the page topic, and supporting headings should help organise the content. Headings make pages easier to read for visitors and easier to scan for search engines.

Finally, review image descriptions. Images should include short, clear text that explains what they show. This helps with accessibility and makes pages more useful overall.

You can review many of these details using Google Search Console or by simply viewing the page source in your browser.

Step 16: Review Structured Data If Used

This step checks whether your site uses structured data and ensures it is set up correctly. Structured data helps search engines understand specific details on a page, such as products, reviews, or business information.

First, check whether structured data is already in place. You can do this by opening a few key pages and checking whether extra details appear in search results, such as star ratings or additional page information. These are often called rich results.

Next, open Google Search Console and look for any messages related to structured data. This section shows whether search engines like Google can correctly read the information, or if anything needs attention.

If your site does not use structured data, that is fine. Not every website needs it. This step is simply about awareness. If structured data is present, ensure it aligns with the page content and reads as precise and accurate.

At this stage, take notes only. Write down which pages use structured data and whether it appears to be working as expected. This will help you decide later if any updates are needed.

 

Step 17 Check Security and HTTPS Setup

This step confirms that your website is safe for visitors and trusted by search engines.

Start by checking your website address in the browser. It should always begin with HTTPS, and you should see a small lock icon next to it. This shows that the connection between the visitor and your site is secure.

Next, click through a few important pages. Make sure every page loads securely and does not switch back to an unsecured version. Consistency matters here. A mix of secure and unsecured pages can cause confusion for both users and search engines.

Then open Google Search Console and check for any security-related messages. This section alerts you if there are problems that may affect how your site appears in search results.

Search engines like Google prefer secure websites, especially when forms or personal details are involved. A secure setup builds trust, improves site health, and supports long-term search visibility.

 

How to Prioritise Technical SEO Fixes as a Beginner

Once you finish a technical SEO audit, the next step is deciding what to work on first. The goal is not to fix everything at once, but to focus on changes that make the biggest difference. Begin with issues that affect whether your pages can appear in search results at all. If search engines cannot reach or understand your pages, other improvements will not matter yet. These checks form the foundation of your site. Next, look at items that affect multiple pages simultaneously. Site-wide settings, navigation paths, or configuration details in Google Search Console often influence overall site health. Improving one of these areas can help a large portion of your site in one step. After that, focus on how visitors experience the site. Pages that load smoothly, display clearly on mobile, and guide users naturally tend to perform better over time. Small improvements here often support stronger engagement and trust. Finally, review smaller page-level details. These are still useful, but they can wait until the main structure of the site is in good shape. A simple way to prioritise is to ask:

  • Does this affect whether pages appear in search results?
  • Does it influence many pages or just one?
  • Does it improve how visitors use the site? 

By working through fixes in this order, you make steady progress without feeling overwhelmed. Technical SEO works best when improvements are clear, practical, and built over time.

Common Technical SEO Mistakes Beginners Should Avoid

When learning technical SEO, it is normal to make small mistakes along the way. Understanding these early helps you move forward with more clarity and confidence. A common challenge is trying to do too much at once. Technical SEO works best when changes are made gradually. Taking a step-by-step approach makes it easier to understand what is improving and keeps the process manageable. 

Another area that can be missed is checking whether pages are reachable and visible in search results. It is natural to focus on content or links first, but confirming that pages can appear in search creates a solid starting point for everything else. 

Redirects also need a thoughtful approach. When used carefully, they help guide visitors smoothly. Keeping them simple and purposeful supports clearer navigation for both users and search engines. 

It is also helpful to review changes after they are made. Checking updates in Google Search Console helps confirm that pages remain accessible and are being handled as expected. 

Finally, tools are helpful, but they work best when combined with real browsing. Reports show patterns, while visits to your site show how people actually experience it. Using both together leads to more confident decisions. 

By keeping these points in mind, beginners can build technical SEO skills steadily and avoid unnecessary setbacks.

Conclusion

A technical SEO audit is simply a way to understand how well a website is set up beneath the surface. When the basics are clear, search engines can access pages easily, and visitors can move through the site without friction. 

Working through these steps builds awareness more than perfection. You start to see patterns, understand priorities, and recognise which issues matter most right now and which can wait. That clarity makes future decisions around content, structure, and site updates much easier. 

Many site owners use this checklist on their own, while others prefer a second set of eyes to confirm what they see. Teams that work with technical SEO regularly, such as those involved in day-to-day site maintenance or broader digital projects at PMGS, often follow a similar process to keep websites stable and easy to grow. 

The most important part is not rushing. Focus on steady improvements, review changes over time, and keep the technical foundation strong. Everything else works better when that foundation is in place.

 

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Gayan-Perera

Gayan Perera

Gayan Perera, Senior Digital Marketing Specialist at PMGS Digital since 2010. With a bachelor’s degree in online systems, Gayan specialises in Online Systems, Web Development, Google Analytics, SEO, Google Ads, Social Ads and CRM Integrations. In addition to those, Gayan enjoys creating videos and content to educate people about those areas.

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