Thus, a free website audit It consists of methodically evaluating the technical performance, natural referencing and user experience of your site, in order to identify obstacles to conversion and Google positioning — before incurring any redesign expenses.
Furthermore, in this article, you will discover:
- The 10 points of a complete and actionable website SEO audit
- A concrete case study from Brittany (before/after) illustrating the real impact on conversions
- Free tools to perform your website check independently
- How IotaWeb Use these 10 points to propose a PageSpeed 100 solution
📋 Summary
- Why conduct a free website audit before a redesign?
- The 10 key points of a complete website diagnostic
- A concrete example from Brittany: before/after the website SEO audit
- Free tools for your website verification
- Website usability audit: user experience at the heart of performance
- IotaWeb: your partner for a free website audit in Brittany
- Customer reviews — what our Breton customers are saying
- FAQ — Free website audit
Why conduct a free website audit before a redesign?
However, too many companies embark on a redesign without having diagnosed the real problems with their current website. The result? They repeat the exact same mistakes on a brand new design. free website audit If done properly, it avoids this costly trap and allows investment where it is truly useful.
What a website diagnostic reveals
Furthermore, in practice, a website diagnostics It highlights three main categories of problems. First, technical obstacles (slowness, 404 errors, lack of HTTPS). Second, SEO shortcomings (missing tags, duplicate content, insufficient internal linking). Finally, UX issues (unreadable call-to-action buttons, chaotic navigation, abandoned forms).
This is why this preliminary work is essential. Furthermore, it allows you to establish an objective baseline—that is, a precise snapshot of your site before any changes—in order to measure the actual progress after the redesign. According to a study Search Engine Journal, 45 % of the sites have at least one critical technical problem not identified by their owners.
Redesign without an audit = risky investment
Imagine renovating a house without having the roof inspected. It's not so easy to anticipate hidden damage—and the same logic applies to a website. Therefore, we always recommend having a website SEO audit and one website verification complete before signing any renovation quote.
However, if you are considering a website redesign with a personalized quote, This audit step is an essential prerequisite that we integrate into our process at IotaWeb.
The 10 key points of a complete website diagnostic
Therefore, here is the checklist we apply during each free website audit at IotaWeb. These 10 points cover all the dimensions that influence your visibility, credibility and conversion rate.
✅ Checklist — 10 points for a free website audit
Points 1 to 4: the essential technical foundation
Speed, Core Web Vitals, mobile-first, and HTTPS form the foundation of all website verification This is serious. In fact, Google has been using them directly as ranking factors since 2021. A site that takes more than 3 seconds to load on mobile loses more than half of its visitors before they even see your offer. It's a stark, but measurable, observation.
In particular, the CLS is often overlooked. Yet, a CLS score above 0.1 generates a chaotic experience: buttons move, users click in the wrong place. Our goal at IotaWeb is consistently a PageSpeed score of 100/100 — not 80, not 90: 100.
Points 5 to 7: Search Engine Optimization in Detail
A website SEO audit A complete scan examines every tag on every page. This includes duplicate titles, missing meta descriptions, multiple H1 headings, and non-canonicalized URLs. Furthermore, broken links (404 errors) penalize your crawl budget and send a negative signal to Google. We use Screaming Frog and Ahrefs Webmaster Tools for this phase.
Points 8 to 10: Conversions, accessibility and measurement
In particular, these three points are often absent from traditional SEO audits. Yet, this is where conversions happen. A poorly positioned or contrasting CTA can cause your conversion rate to plummet by 20 to 40% (%). Similarly, a poorly configured GA4 tracking system deprives you of reliable data for decision-making. This is why we systematically integrate a website usability audit comprehensive in our approach.
A concrete example from Brittany: before/after the website SEO audit
Furthermore, what differentiates IotaWeb from a simple automated audit generator? We work on real projects with Breton companies that have specific constraints and objectives. Here is a representative example of our approach.
Initial situation: a craft site in Pontivy
As a result, a baker from Pontivy (56) contacted us for a redesign. Before touching anything, we carried out a free website audit complete. The findings are indisputable: mobile PageSpeed score of 31/100, CLS of 0.38 (Google score: poor), 14 broken links, zero alt tags on product images, and Google Analytics not configured for 18 months.
| Indicator | Before audit | After the IotaWeb redesign | Evolution |
|---|---|---|---|
| Mobile PageSpeed Score | 31/100 | 100/100 | +69 points |
| CLS (Cumulative Layout Shift) | 0,38 | 0,02 | -94% |
| Conversion rate (contact form) | 0,8% | 3,1% | +287% |
| Broken links (404) | 14 | 0 | -100% |
For example, this case perfectly illustrates why a website diagnostics A preliminary audit is not optional. Without one, the overhaul would have cost the same—but performance would have stagnated. With the audit, we knew exactly where to prioritize action. For a similar project in Côtes-d'Armor, discover our approach to web development in Côtes-d'Armor.
Free tools for your website verification
Good news: you can start your website verification with free 100% tools. However, be aware that an automated tool can never replace an expert human eye — it identifies symptoms, not always the underlying causes.
Essential tools
🔧 Tools for technical auditing
- Google PageSpeed Insights — Speed + Core Web Vitals (free, official Google)
- Google Search Console — indexing errors, coverage, inbound links
- Screaming Frog SEO Spider — Full crawl of up to 500 URLs (free)
- GTmetrix — in-depth analysis of loading times
📊 Tools for SEO and UX auditing
- Ahrefs Webmaster Tools — Free SEO audit for your own domain
- WAVE (WebAIM) — accessibility and RGAA compliance
- Hotjar (free plan) — heatmaps and session recordings
- Lighthouse (integrated with Chrome DevTools) — full site usability audit
Interpreting the results: what others don't say
A PageSpeed score of 75/100 might seem acceptable. However, if your direct competitor scores 95/100 on the same local search query, you're starting with a measurable competitive disadvantage. That's why we always compare our clients' scores to those of their direct competitors during a free website audit. This differentiating approach is lacking in 90%'s automated audits available online.
Website usability audit: user experience at the heart of performance
L'’website usability audit This is the most underestimated aspect of a comprehensive diagnostic. Indeed, a technically perfect website can fail to convert visitors simply because they don't understand where to click. This isn't an isolated incident: it's the case for the majority of Breton SMEs we work with.
The 5 most common UX mistakes
⚠️ Critical UX errors detected during our audits
- CTA absent above the waterline — the user must scroll to find the "Contact" button«
- Form too long — more than 5 fields = abandonment rate multiplied by 3
- Overloaded navigation menu — more than 7 items = decision paralysis
- Phone number not clickable on mobile — direct loss of leads
- Images without alternative text — SEO penalty and accessibility simultaneously
Furthermore, accessibility has become a legal requirement for some organizations (European directive WCAG 2.1). Even if you are not directly affected, an accessible website ranks better. This is a factor we systematically incorporate into our website usability audit. If you are developing a specific web project such as a rental website, consult our guide on the Love room website creation with IotaWeb — UX principles apply in the same way.
IotaWeb: your partner for a free website audit in Brittany
In contrast, iotaWeb is a Breton web agency specializing in the digital performance of very small businesses and SMEs. Our approach is based on a simple principle: no overhaul without a prior audit. Every project begins with a free website audit offered, structured around the 10 points presented in this article.
Our PageSpeed 100 Expertise
On the one hand, our goal of a 100/100 PageSpeed score isn't a marketing ploy. It's a development method—we code our sites in optimized HTML/CSS/JS, without bloated WordPress themes, and with high-performance hosting. In practical terms, this translates to sites that load in under 1 second, with Core Web Vitals in the green on all devices.
🎯 What our free website audit includes
- Detailed and annotated PageSpeed Insights report
- Core Web Vitals Analysis (LCP, INP, CLS)
- Detection of critical SEO errors (tags, structure, duplicates)
- Evaluation of mobile experience and accessibility
- Priority recommendations with impact assessment
- 30-minute feedback call with an IotaWeb expert
We operate throughout Brittany: Pontivy, Hennebont, Lorient, Vannes, Rennes, Saint-Brieuc. For example, our support for the website creation in Hennebont systematically incorporates this preliminary audit. The same applies to our projects of website creation in Pontivy.
Our commitment to quality
We are convinced that a well-informed customer is a satisfied customer. That's why our website diagnostics It is always delivered in written form, with screenshots, numerical data, and recommendations ranked by priority (critical/important/optimization). No inaccessible technical jargon—just the information you need to make a decision.
Customer reviews — free website audit and website diagnostic
«"The free website audit conducted by IotaWeb highlighted problems I would never have detected on my own: a PageSpeed score of 28, unoptimized images, and a broken contact form. In 6 weeks, my conversion rate tripled."»
«"The website diagnostic was a real revelation. IotaWeb presented me with a clear, jargon-free report, outlining priorities. My website in Côtes-d'Armor now scores 100/100 on PageSpeed and I'm receiving twice as many quote requests as before."»
«"I was skeptical about the value of a website SEO audit before investing in a redesign. IotaWeb convinced me with concrete data. The CLS was disastrous and I didn't even know what it was. Today, my Google ranking has significantly improved."»
FAQ — Free website audit
What is a free website audit and what exactly does it cover?
A free website audit is a structured analysis of your website covering technical performance (speed, Core Web Vitals), search engine optimization (on-page SEO, internal linking, meta tags), user experience (UX, mobile, accessibility), and analytics tracking. At IotaWeb, this audit is always offered free of charge before any website redesign or development proposal. It culminates in a written report with prioritized recommendations and a 30-minute oral presentation.
How to perform a website diagnostic yourself without technical skills?
Start with Google PageSpeed Insights (enter your URL and analyze mobile results first), then check your Google Search Console for indexing errors. The WAVE tool visually indicates accessibility issues. However, these automated tools identify symptoms but not always the causes—an expert can go much further in interpreting and prioritizing fixes.
What is the difference between a website SEO audit and a technical audit?
A website SEO audit analyzes title and meta tags, heading structure (Hn), content, targeted keywords, internal linking, and backlink profile. A technical audit, on the other hand, focuses on speed, Core Web Vitals, HTTPS, crawl errors, and mobile compatibility. These two aspects are complementary: a technically perfect site without an SEO strategy won't rank, and vice versa. A comprehensive audit, like the one offered by IotaWeb, necessarily covers both.
How long does it take to perform a complete website audit?
An automated website check takes between 5 and 15 minutes with free tools. However, a thorough audit conducted by an expert requires between 2 and 5 hours of work, depending on the size of the site—including data interpretation, competitor analysis, and the drafting of recommendations. At IotaWeb, we deliver the audit within 5 business days, along with a debriefing call.
Key points
Is a website usability audit really necessary if my site has already been online for years?
Absolutely, and it's even more urgent in this case. UX standards are evolving rapidly: what was acceptable in 2019 is often a barrier to conversion in 2026. Furthermore, user behavior has changed—mobile now accounts for more than 60% of web traffic in France (source: StatCounter 2024). A website usability audit reveals the invisible friction points that drive your prospects away without you even realizing it.
Is a free website audit as comprehensive as a paid one?
It depends on who performs it. An automated report generated in 30 seconds by an online tool remains superficial—it lists problems without contextualizing or prioritizing them. In contrast, the free website audit offered by IotaWeb is conducted manually by an expert, with local competitive analysis and actionable recommendations. It's free because it's part of a consulting approach: we prefer to provide you with value before offering you anything.
What concrete results can I expect after a website SEO audit followed by a redesign?
Results vary depending on the initial state of the site, but our Breton projects show on average: an improved PageSpeed score of +40 to +70 points, a conversion rate multiplied by 2 to 3, and visible SEO progress on local search queries within 3 months. The case of the baker in Pontivy presented in this article clearly illustrates these gains: a +287% conversion rate and a CLS reduced by a factor of 19. These figures are real and measurable from the outset thanks to the implementation of GA4 tracking.
In conclusion, a free website audit is the most profitable investment you can make before any redesign. It prevents you from repeating your mistakes, prioritizes your actions, and measures your starting point. At IotaWeb, we strongly advocate this approach: the website verification It's not a formality; it's the foundation of any successful web project. Our recommendation? Don't sign any redesign contract without first having a complete website audit in hand.
Get your free website audit today
Free comprehensive website diagnostic — written report + 30-minute feedback call with an IotaWeb expert
