Running a free SEO audit of your website in 60 seconds means automatically checking more than 60 technical and on-page criteria: title tags and meta descriptions, the H1/H2 heading structure, image alt attributes, robots.txt and sitemap configuration, load speed and mobile layout. The result is an SEO score out of 100 with the errors ranked by priority.
68% of online experiences start on a search engine. Yet the vast majority of websites never get past the second page of Google, not for lack of content, but because of invisible technical errors that drag their organic ranking down without the owners ever realising.
The good news: most of those errors can be fixed in a few hours, with no developer. You just have to know about them first.
The tool itself is here: [run the free SEO audit of your site](/en/seo-check). This article explains what it measures, how to read the score and where to start once the report arrives.
Why is an SEO audit essential before any optimisation?
An SEO audit is essential before any optimisation because it pinpoints exactly what is holding your Google ranking back. Without one, you risk polishing details while critical problems go unresolved. Google uses more than 200 ranking factors: with no diagnosis first, you are working blind.
A site can have an overlong title tag, images with no alt attribute and a badly configured robots.txt file, and lose dozens of positions because of those three simple errors. An automated SEO checker saves you hours of manual analysis by verifying all of these points at once.
What the audit reveals time and again on the small businesses we support at ConvertiLab:
These errors sound technical, but they have a direct effect on the business. A page with no meta description attracts fewer clicks in Google (the click-through rate drops by 20 to 30%). An image with no alt text contributes nothing to Google Images. A badly configured robots.txt can block your best service page from being indexed. And a mobile PageSpeed score of 35 means half your visitors leave before they even see your content.
How does a free SEO audit tool work, in three steps?
A free SEO audit tool works in three steps: you enter your URL, the tool crawls your page and analyses its resources and source code, then it produces a report ranking the problems by priority. The whole thing takes less than 60 seconds for a first-level audit that is reliable and actionable.
Step 1: Enter your URL
Go to the free SEO audit tool, paste your site's full address (including https://) and start the analysis. No sign-up, no card details.
Step 2: The real-time analysis
In under 60 seconds the tool examines: title tags and meta descriptions, the H1/H2/H3 structure, image alt attributes, robots.txt and the XML sitemap, load speed, responsive design, HTTPS, and twenty or so other criteria.
Step 3: The prioritised report
You get an overall SEO score out of 100 with every problem classed as a "critical error", a "warning" or an "improvement". Each point comes with an explanation and a concrete way to fix it. You also receive the report by email so you can find it again easily and share it with your supplier if you need to.
What do you actually get from a free SEO audit?
A free SEO audit gives you a report covering four dimensions: technical SEO (server speed, compression, caching), on-page SEO (title tags, meta descriptions, heading hierarchy), indexing (robots.txt, sitemap, 404 errors) and mobile compatibility. Every problem found comes with the potential ranking gain if you fix it.
What the audit covers, by category:
| Category | Checks performed | SEO impact |
|---|---|---|
| Technical SEO | TTFB, compression, caching, HTTPS | High |
| On-page SEO | Title, meta, H1/H2, image alt | Very high |
| Indexing | Robots.txt, sitemap, 404 | High |
| Mobile | Responsive layout, button size | High |
| Content | Length, duplication | Medium |
Unlike paid tools such as Semrush or Ahrefs, which analyse an entire domain in depth, this tool is built for a fast, actionable diagnosis of the page you analyse, ideal for spotting the priority blockers in seconds.
A typical score: an unoptimised WordPress site belonging to a tradesperson usually scores between 35 and 55 out of 100 on the first audit. The most common errors: no H1 on the home page, uncompressed 2-3 MB images, an empty meta description. After the fixes, the same site reaches 70 to 85 in a day's work.
One ConvertiLab client (an HR consultant in Paris) scored 41/100. After an audit and two days of fixes (title plus meta plus images plus speed), the score rose to 79/100. The average position on their target searches went from 18 to 6 in three months.
What should you do once you have your SEO audit results?
An audit with no action is worthless. Here is how to prioritise the fixes:
Priority 1, critical errors (fix within 48 hours)
Priority 2, warnings (fix within the week)
Priority 3, improvements (plan over the month)
Frequently asked questions about SEO audits
How many times can you use the free SEO audit?
The tool can be used as often as you need, with no limit. We recommend running a new analysis after each round of fixes to measure how much the SEO score has improved and to confirm the errors are genuinely resolved. A monthly audit is good practice for keeping an eye on a site's SEO health.
Does a free SEO audit replace an SEO expert?
No, an automated audit identifies technical and on-page errors, but it does not replace a full SEO strategy. Keyword research, optimised content, link building and in-depth technical work all need professional support. The tool is the starting point, not the whole solution.
Is my site's data kept after the audit?
No, the analysis results are not saved to a persistent database. The analysis runs in real time and the results are only visible during your session. No confidential data about your site is stored.
How should you read the SEO score out of 100?
The SEO score out of 100 is an overall indicator of your page's health. Here is how to read it: - 80 to 100: excellent, your page is well optimised, focus on content and backlinks - 60 to 79: fair, there is room to improve, mostly on the technical side and the tags - 40 to 59: poor, blocking errors are holding your ranking back - 0 to 39: critical, your page has serious problems preventing Google from indexing it properly A high score does not guarantee position one, but a low score guarantees you will never get there. The score is the floor, not the ceiling. Think of it as an MOT: necessary, but not enough to win a race. Run the free SEO audit of your site →


