A website security audit finds the vulnerabilities in your web app or website before an attacker does. An AI model on our own hardware searches the code and the configuration, and an expert checks every finding. You only get confirmed vulnerabilities, with their severity and a concrete fix.
4.9/5 on Google26 reviewsAI does the searching, and a person decides what is real, what is urgent, and how to fix it. Your code and your data stay on our own hardware the whole time.
A website security audit is a thorough check of a website or web application for weak spots in its security. We look at the code, the configuration, the third-party libraries, and the way users log in and request data. An AI model does the searching, on our own hardware. An expert then decides what happens with every alert.
That difference matters. An AI scan without review quickly produces a long list, with many alerts that are wrong. In 2025, the open source project curl saw the share of real vulnerabilities in incoming reports drop to below 5%, largely because of AI-generated reports. In our audit, the checking happens before the report, not after it.
These services complement this one and help you choose the right approach for your project.
An audit you can act on: clear, confidential, and without raw AI output.
The AI model runs on our own hardware. Your code and your data are not sent to a cloud AI service.
An expert reviews every alert in the context of your web app. False alarms don’t make it into the report.
For each finding, the severity, the location, and a concrete recommendation. If you want, we carry out the fixes too.
The terms often get mixed up. They differ in what they look at, who checks the results, and when they make sense.
| What matters | AI scan without review | Security audit with AI and an expert | Penetration test |
|---|---|---|---|
| What it does | A model produces alerts | AI searches, an expert checks and ranks every finding | A tester attacks the web app like an attacker would |
| Looks at | Whatever you hand over | Code, configuration, libraries, and access | The running web app, from the outside |
| False alarms | Many, unfiltered | Filtered out before the report | Few, everything is tested |
| Where your code goes | Often to a cloud AI service | With us: it stays local | Not needed, the test runs from the outside |
| When it makes sense | As a first look by a developer | Before launch, after major changes, periodically | When you need to prove what can be exploited |
What we look at, what you prepare, and why permission and confidentiality come first. Six questions we go through together at the start.
Many web app vulnerabilities sit in the same places. The OWASP Top 10:2025, the best-known list of web application risks, puts Broken Access Control at the top: a user sees or changes data they shouldn't have access to. Next come security misconfiguration, problems with third-party libraries and packages, weak cryptography, and injection.
We check those risks for your web app. How users log in and what they can see afterward. Which settings are left open. Which libraries are outdated or have known vulnerabilities. And how the app exchanges data with other systems, for example through an API. We agree together in advance on exactly what the audit covers.
Anyone who has an AI model review their code often sends that code to a cloud AI service. For a web app with customer data, payment details, or trade secrets, that is a risk in itself. You don't always know where the code ends up or who can access it.
That's why our analysis runs on an AI model on our own hardware. Your code and your data never leave our office and are not sent to an external AI service. You don't have to choose between a thorough check and keeping your software confidential. We agree up front on the access we get for the audit, and you can revoke it once the audit is done.
An AI model finds a lot, but it doesn't understand the context of your web app. An exposed admin page is critical on a live online store and harmless on a test server without real data. Ten medium-severity alerts are less urgent than one vulnerability that lets a customer see another customer's invoices.
That's why an expert checks every alert: is it correct, can it really be exploited in your web app, and how severe is it? Alerts that are wrong are dropped. What's left gets a place in the order of what needs to happen first. You get a list you can work through, not a list you have to sort out yourself first.
A security audit is not a hack, and the difference is permission. In the Netherlands, breaking into a system without permission is a crime under the Dutch Criminal Code. In Belgium it is a crime too. The Belgian legal framework for ethical hackers only protects those who strictly follow its conditions.
That's why we only work for the owner of the web app, or for someone authorized in writing to act for the owner. If an agency built your web app and it runs with another provider, we agree up front who gives permission for which part. We don't audit an app you don't own.
An audit isn't a yearly formality. There are moments when it really counts:
Not sure whether your web app qualifies? Tell us which app it is, and we'll look at it together.
The report is the start, not the end. Each finding explains what is wrong, where it is, and how to fix it. You can carry out the recommendations yourself or with your own developer. You can also leave the fixes to us through web development. A quick fix that closes a vulnerability but breaks the login helps nobody, so we test every fix in the context of the whole web app.
An audit doesn't replace good maintenance. Libraries get new vulnerabilities, and every change to your app can open a new risk. With website maintenance, updates and checks stay up to date. If your app runs with us, backups and monitoring are part of our web hosting.
Digital experiences that feel like the company behind them.
A rental store with twice the daily Google clicks it had at launch
Our own site as a running case: measured monthly, reported honestly
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Guitar lessons in Antwerp: page one for teacher Ben Boeckx
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A rotating selection of the reviews clients left on Google — Dutch reviews shown in English translation. An average of 4.9 out of 5 stars across 26 Google reviews (September 18, 2026).
Two years ago I started looking for someone who could help me with a website that scored well. In terms of approach, Seppe immediately made a good impression on me; he is patient (which I definitely need), professional, and transparent. You can always reach out to him with questions and he charges fair prices. Shortly after we first got in touch he launched a new website that I am very happy with, and he manages the SEO and SEA features to the best of his ability. As a proud ambassador of Straffe Sites, I look to the future with confidence!
Fast & perfect service.
A pleasant collaboration for 15 years now, with knowledge and skill at the center.
From permission to the report. You know in advance what we check and how far we go.
We only start after written permission from the owner. Together we agree on what we check, in which environment, and how far we go.
An AI model on our own hardware searches the code, the configuration, and the libraries in use for possible vulnerabilities.
An expert reviews every alert: is it correct, can it be exploited in your web app, and how severe is it? False alarms are dropped.
You get the confirmed findings with severity and recommendations. You fix them yourself or have us carry out the fixes.
At Straffe Sites you work directly with the team. Seppe stays your dedicated point of contact and builds your website; the team supports him with commerce, code, and photography where needed. Communication stays direct, and your questions never get lost between account managers.
Straightforward answers before you decide whether this service fits your business.
A security audit looks for weak spots in the security of your web app: in the code, the configuration, the third-party libraries, and the way users log in and request data. We have an AI model search those parts, and then an expert checks every finding. Only confirmed findings make it into the report.
No. The analysis runs on an AI model on our own hardware. Your code and your data never leave our office and are not sent to an external AI service.
A security audit looks from the inside at code, configuration, and libraries to find weak spots. A penetration test attacks the running web app from the outside to prove what an attacker could do with it. For most small and mid-sized businesses, an audit is the logical first step. Our article on the AI security audit explains the difference.
A report with checked findings only. Each finding lists the severity, the location in the code or configuration, and a concrete recommendation to fix it. Alerts that are wrong or pose no risk in your situation are left out.
Nobody can honestly promise that, and neither do we. What you do get is a clear view of the risks we found, which ones are most urgent, and how to deal with them.
Yes, if you own it or are authorized in writing to act for the owner. If the web app runs with another provider, we agree up front who gives permission for which part. Without written permission from the owner, we don’t start.
If you want us to. You can carry out the recommendations yourself or with your own developer, or leave the fixes to us. After that, website maintenance keeps updates and checks up to date.
Technical terms from this page, explained briefly and linked to the full knowledge base.
software that carries out multi-step tasks under human direction, with clear permissions, boundaries and checks.
a defined interface through which software can request or send data, or use an approved function in another system.
a separate copy of data and configuration that can be used to restore a website after data loss, an error or an attack.
a digital certificate that enables encrypted traffic between a visitor and a website and helps verify the site’s identity.
keeping a website current, safe and fast through updates, monitoring, backups and targeted improvements.
the service and infrastructure that keeps a website’s files online and accessible, with provisions for performance, security and updates.
Tell us which web app or website it is and who owns it. We’ll go over what we check, what the report looks like, and which permission we need.
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Hi, I am Hermes, the AI agent of Straffe Sites. I answer your questions about websites, online stores, SEO and how we work, and pass your request on to Seppe when you ask me to.