Do I have to fix every error found by the SEO Audit Tool?

It’s best to start with those marked as errors — the critical elements visible in the report. These usually have the biggest impact on indexing, visibility in Google, meta tag accuracy, site structure, loading speed, or user experience. It’s worth fixing smaller alerts and hints later, once the most important issues have been resolved.

How often should I run an audit with the SEO Audit Tool?

It’s a good habit to perform an audit at least once a month and after each major change on your site, for example after a new template launch, menu rebuild, migration, content update, or technical optimization. DiagnoSEO regularly expands its checkpoint set, so regular audits help detect new problems and keep your site in line with current SEO best practices.

How do I perform an SEO audit?

To perform an SEO audit, enter the website address or a specific URL into the SEO Audit Tool and run the analysis. The tool checks the most important technical, on-page, and quality factors, including HTTP status, HTTPS, page title, meta description, headers, canonical, robots.txt, favicon, HTML structure, Schema.org, Open Graph, performance, analytics, accessibility, and security. In the Pro version, you can additionally enable advanced checkpoints, content audit, UX, and Conversion Rate Optimization to get a more complete view of your site's condition.

What is an SEO audit?

An SEO audit is an analysis of a website with regard to elements that may affect its visibility in search engines. It covers both technical issues like indexing, canonical, robots.txt, HTTP statuses or page rendering, as well as content elements such as titles, descriptions, headers, text length, information structure, and structured data. The purpose of an audit is to identify problems and specific actions that can help boost rankings, organic traffic, and quality of the site.

Which tool is best for SEO audits?

The best choice depends on whether you want to quickly check a single page or analyze your whole website. DiagnoSEO SEO Audit Tool works well for a quick analysis of a specific URL, showing the SEO score, errors, alerts, result preview, technical issues, and recommendations. The Pro version offers far more checkpoints, additional analyses, and ready-made AI-powered suggestions. If you need a full crawl of the entire site, DiagnoSEO Website Audit is a better choice, letting you analyze many subpages and find sitewide issues.

Which SEO checker is best for beginners?

The best SEO checker for beginners is one that not only spots problems, but also explains what to fix and where to start. DiagnoSEO SEO Audit Tool is a good pick, because it presents results simply, breaks issues into errors, alerts, and information, and helps you quickly understand which parts of your site need attention. This means beginners don’t need to interpret every technical detail themselves and can improve their site step by step.

Is there a free SEO checker?

Yes, DiagnoSEO SEO Audit Tool is also available in a Free version, which lets you run a basic site audit and check the most important SEO factors. This is a good solution to start when you want to quickly spot basic errors and assess the condition of a selected URL. The Pro version offers much more: more checkpoints, advanced analyses, web writing audit, UX, CRO, JavaScript rendering options, Googlebot user agent, premium proxy, as well as ready-made AI-powered repair recommendations.

SEO Audit

Daily limit 0/3
Plan name Free

Website URL *

Advanced configuration

How to use the SEO Audit Tool

Getting started is really easy. Enter the full URL of your website or a specific subpage, then click “Audit page”. In just a few moments, the SEO Audit Tool will scan your site and show you a detailed, clear SEO report.

Advanced settings in the SEO Audit Tool

Use a premium proxy to fetch page content: Useful if your site blocks bots or has IP restrictions. This way, the audit fetches content as if it were a real user.
JavaScript rendering – Auto (default): Do you use JavaScript frameworks (e.g. React, Angular, Vue)? No stress — this option makes the audit see the page exactly as Googlebot does.
Country (proxy bot location): Want to see how your site looks from another country? Choose where your audit bot should operate from. Default is United States.
Paste HTML code: If your site blocks SEO tools or relies heavily on client-side rendering, just paste the ready HTML here. You'll get a complete and accurate report.
Use Googlebot as user agent: The tool can scan your site as Googlebot to make the results as close to real as possible.
Enable advanced checkpoints: Enable this option if you want even more technical and detailed tests. Perfect for power users!
Enable content writing audit: Checks if your texts are well organized and written according to SEO best practices.
Enable UX checkpoints: This way, the audit checks if your website is friendly and engaging for users.
Enable conversion optimization checkpoints: Audits elements that help turn visitors into customers.

What does the SEO Audit Tool do?

The SEO Audit Tool looks deep under the hood of your website and checks over 200 technical, content, and UX aspects. It analyzes, among others, indexability, load speed, metadata, broken links, mobile friendliness, and much more. You can think of it as your personal website health inspector.

How the SEO Audit Tool can help you

No more guessing. The SEO Audit Tool will show you exactly what is harming your site's visibility — and tell you how to fix it. That means: better positions in Google, happy visitors, and more conversions — faster than you think.

Use cases for the SEO Audit Tool

Planning to launch a new website or landing page? Run an audit before launch and sleep easy.
Your organic traffic suddenly dropped? Detect hidden problems with the audit.
Want to make sure your site is in top shape? Monthly audits will help you stay on top of things.
Getting a new client? Quickly evaluate their site and plan an effective strategy.
Want to impress your client? Create professional, white-labeled SEO reports in just a few clicks.

SEO Audit Tool comparison with others

Checkpoint	DiagnoSEO	Others
Number of checkpoints in SEO audit	200+	~50
Advanced checkpoints	✅	❌
Content writing audit	✅	❌
UX checkpoints	✅	❌
Conversion optimization checkpoints	✅	❌
White-labeled SEO reports	✅	✅
Downloadable PDF reports	✅	✅
Use premium proxy for fetching the page	✅	❌
JavaScript rendering	✅	❌

Proven tricks in the SEO Audit Tool

Fix critical technical errors first: Indexing and crawling issues can completely block your rankings. Always start with them.
Audit your most important subpages first: Quick wins — small fixes on popular pages have a big impact.
SEO is a process: Schedule regular audits each month or after major changes. Check your previous reports to track progress. We regularly add new checkpoints!

Most common mistakes when using the SEO Audit Tool

Focusing on minor issues instead of critical errors.
Ignoring mobile-related warnings — today, most users are on mobile!
Overlooking redirect chains or broken internal links that confuse both users and Google.
Reviewing results without implementing audit recommendations.

How to get the most out of the SEO Audit Tool

Start with the homepage audit, then move on to templates: categories, products, blogs, etc.
Fix critical issues first — indexing, meta tags, speed, mobile.
Make changes together with your developer or via your CMS.
Run the audit again and check your progress!
Go further with the Keyword Placement Tool, TF-IDF Tool and SERP Analyzer — deep optimization for specific keywords.

Below you’ll find ready-to-copy HTML code. I included info from the tool description: Free version, more checkpoints in Pro, web writing audit, UX, CRO, proxy, JavaScript rendering, Googlebot user agent, and DiagnoSEO Website Audit for full crawl.

Frequently Asked Questions about the SEO Audit Tool

Do I have to fix every error found by the SEO Audit Tool?

It’s best to start with those marked as errors — the critical elements visible in the report. These usually have the biggest impact on indexing, visibility in Google, meta tag accuracy, site structure, loading speed, or user experience. It’s worth fixing smaller alerts and hints later, once the most important issues have been resolved.
How often should I run an audit with the SEO Audit Tool?

It’s a good habit to perform an audit at least once a month and after each major change on your site, for example after a new template launch, menu rebuild, migration, content update, or technical optimization. DiagnoSEO regularly expands its checkpoint set, so regular audits help detect new problems and keep your site in line with current SEO best practices.
How do I perform an SEO audit?

To perform an SEO audit, enter the website address or a specific URL into the SEO Audit Tool and run the analysis. The tool checks the most important technical, on-page, and quality factors, including HTTP status, HTTPS, page title, meta description, headers, canonical, robots.txt, favicon, HTML structure, Schema.org, Open Graph, performance, analytics, accessibility, and security. In the Pro version, you can additionally enable advanced checkpoints, content audit, UX, and Conversion Rate Optimization to get a more complete view of your site's condition.
What is an SEO audit?

An SEO audit is an analysis of a website with regard to elements that may affect its visibility in search engines. It covers both technical issues like indexing, canonical, robots.txt, HTTP statuses or page rendering, as well as content elements such as titles, descriptions, headers, text length, information structure, and structured data. The purpose of an audit is to identify problems and specific actions that can help boost rankings, organic traffic, and quality of the site.
Which tool is best for SEO audits?

The best choice depends on whether you want to quickly check a single page or analyze your whole website. DiagnoSEO SEO Audit Tool works well for a quick analysis of a specific URL, showing the SEO score, errors, alerts, result preview, technical issues, and recommendations. The Pro version offers far more checkpoints, additional analyses, and ready-made AI-powered suggestions. If you need a full crawl of the entire site, DiagnoSEO Website Audit is a better choice, letting you analyze many subpages and find sitewide issues.
Which SEO checker is best for beginners?

The best SEO checker for beginners is one that not only spots problems, but also explains what to fix and where to start. DiagnoSEO SEO Audit Tool is a good pick, because it presents results simply, breaks issues into errors, alerts, and information, and helps you quickly understand which parts of your site need attention. This means beginners don’t need to interpret every technical detail themselves and can improve their site step by step.
Is there a free SEO checker?

Yes, DiagnoSEO SEO Audit Tool is also available in a Free version, which lets you run a basic site audit and check the most important SEO factors. This is a good solution to start when you want to quickly spot basic errors and assess the condition of a selected URL. The Pro version offers much more: more checkpoints, advanced analyses, web writing audit, UX, CRO, JavaScript rendering options, Googlebot user agent, premium proxy, as well as ready-made AI-powered repair recommendations.