SEO audit platforms

What an SEO audit is and what it's for

An SEO audit helps identify technical and content issues preventing your website from ranking higher in search engines, and defines clear optimisation actions to take. Analysing a website reveals what's wrong, what can be improved, and what the priorities are to increase organic traffic and your brand's online visibility.

There are several free and paid SEO audit platforms, each offering different levels of detail. Many allow a limited number of analyses at no cost, making them well suited to small businesses or early-stage projects. If you'd prefer an analysis carried out by professionals, take a look at our SEO audit service.

SEO explained simply

Simply put, SEO (Search Engine Optimization) is the set of techniques aimed at positioning web pages among the top organic results in search engines such as Google. It covers content optimisation, site structure, loading speed, mobile experience, and internal and external links, among other factors.

To explore the topic further, check out the articles tips to improve your Google ranking and SEO for ecommerce, where practical strategies for improving your pages' performance are explained.

What organic results are

Organic results are the natural listings presented to users based on the relevance of their search query, excluding paid ads. These results are determined by each search engine's algorithms, which evaluate hundreds of relevance and quality signals.

If your website isn't showing up on Google for important terms, it may be a sign that you need an SEO audit. In that case, also read the article my website doesn't appear on Google.

Platforms for a free SEO audit

Among the recommended SEO audit platforms for a first no-cost analysis, the following stand out:

1. ID Digital Audit – a solution focused on fast analysis of your website.
2. PageSpeed Insights – Google's official tool for evaluating performance and speed, both of which influence SEO.
3. SEOptimer – generates reports with on-page and technical recommendations.
4. SEOmator – performs comprehensive audits with a technical focus.
5. SEOsitecheckup – checks essential on-page optimisation and performance elements.

Each platform analyses slightly different aspects, so combining results from multiple tools helps you get a more complete picture without investing heavily in specialist software.

From diagnosis to optimisation

An audit is just the first step: once the issues are identified, they need to be fixed and progress monitored. Factors such as HTML tag hierarchy, the presence of a sitemap.xml file, and a link building strategy all have a direct impact on how search engines evaluate and index your site.