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Free Website Security Check

With increasing digitalisation, the risks for websites are rising continuously. The OM Optimiser© security tool provides state-of-the-art security – with solutions for more protection. Simply test it here!

Check your domain now!

The Website Security Analysis scans 20 subpages on your domain and performs a thorough check. Afterwards, you will receive an exact listing of the risk assessment and further information on more than 100 check points. With the free Website Security Check you can prevent negative effects and see at a glance how the security of your own website is and what needs to be improved.


The Security Check only takes a few minutes of your time. The vulnerabilities of your site are revealed at a glance and you can take informed and conscientious action. More security leads to more success and prepares your company for the future!

Our free Website Security Check lets you test your domain simultaneously and quickly on all three security systems presented. You save yourself the time-consuming task of entering your URL individually on each of the pages. If there is an OK three times, the security of your website is guaranteed. Then it’s just a matter of reducing any vulnerabilities, which are listed in the Security Check’s detailed risk assessment.

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Always on the safe side thanks to the OM Optimiser Security Check

The free Website Security Check checks whether your URL has been blacklisted by Google Safe Browsing. If you see the green tick in the result of the analysis, everything is fine. Google has no indication of a serious threat that could degrade the ranking and harm your users.

In case your website ended up on the Google Safe Browsing blacklist, you can request Google to re-scan it after cleaning up all malicious or infected content. After about 24 hours, the now safe site is removed from the blacklist and reappears undisturbed in the search results.

The term SQL injection refers to an attack via the SQL database. A hacker can use SQL injection to steal or modify data or generally cause great damage. SQL databases are always vulnerable when there is poor, incorrect masking. The Website Security Check scans the source code for such flaws and shows you problem areas.

Source code disclosure is about the disclosure of sensitive data in the source code. If the server stores information such as passwords, e-mail addresses, etc. unencrypted, it can quickly fall into the wrong hands. The Security Check checks whether there is any disclosed data in the source code on your website and displays it to you.

Cross-site scripting – also known as XSS – is also an attack variant in which unauthorized persons gain access to sensitive, valuable data. A security hole is exploited to integrate a malicious script into the page. A common example of this is a registration form. Forums are particularly often affected. The user who uses the form is then automatically sent malicious information. The Security Check gives you a warning if a vulnerability is found on your site that makes an XSS attack possible.

Another important point in the security check deals with weak, inadequate authentication methods. Here, the attacker can succeed in intercepting sent login information and use it for himself. Once an attacker gets hold of the login name and password, he has full access to your databases. SSL certificates and other common authentication methods are therefore an absolute necessity. The Website Security Check checks for the presence of these methods and alerts you to insecure HTTPS forms.

Google Safe Browsing

Safe Browsing is a service of the Google search engine that detects harmful websites. If a danger is detected and identified, both the website operator itself and the users are notified. Since in many cases these are actually reputable sites that have fallen victim to an attack by hackers, it is also Google’s concern to eliminate the problems as quickly as possible.

Google Safe Browsing distinguishes between two different security concerns in its analysis:

Phishing pages are used to trick users into voluntarily entering passwords or account information. The classic example of a phishing attempt are pages that copy the structure and design of a bank’s official e-banking platform.

Malware, on the other hand, spies on data by installing malicious software on the user’s computer.


As the name suggests, the PhishTank service is primarily concerned with detecting phishing sites and protecting against them. PhishTank was founded by David Ulevitch, who is also behind the company OpenDNS. PhishTank’s valuable work is based on a community system. Users can report suspicious websites to the platform themselves. After a check, the malicious site is added to a list. Browsers such as Mozilla Firefox and numerous anti-virus programs access this list from PhishTank in order to make their services even more secure.

to do. In the PhishTank analysis of the Security Check, a positive result is also displayed with a green tick. If this is not the case and you believe your website was incorrectly classified as malicious by PhishTank, you can contact the service and have the matter investigated. As a rule, however, such incorrect decisions are rare. If your site appears in PhishTank’s blacklist, you have probably been the target of an attack. The security check is the first step to making your website secure again.

McAfee Siteadvisor

The third and last external source used for the first part of the security check is the McAfee Siteadvisor. This is an extension of the McAfee anti-virus program that can detect and warn about threats directly in the browser.

The McAfee Siteadvisor knows four classifications:

stands for tested, secure sites.

stands for pages where caution is advised because they could contain harmful content.

stands for sites with serious security problems containing malware and the like.

stands for pages that have not yet been tested.

Further analyses with the OM Optimiser®

The risk assessment of the Security Check comprises more than 100 check points. This involves the examination of those points in the source code of a page that are considered typical security vulnerabilities. The more such vulnerabilities a site has, the more susceptible it is to attacks from third parties. In order to keep up to date with the latest security developments, the Security Check uses the OWASP Top 10, an annual list of the most frequently occurring vulnerabilities on the Internet.

The Security Check breaks down the results into the following three categories:

  • High-risk security issues,
  • medium-risk security issues, and
  • Security problems with low risk.

In the absolute ideal case, not a single security risk is found and the score in all three categories is 0. For most websites, however, at least a few vulnerabilities in the low range are found that should be fixed.

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Online marketing has never been easier with the OM Optimiser®.

The OM Optimiser is an all-in-one online marketing tool that automates manual, recurring online marketing processes through artificial intelligence and is permanently available to you free of charge. Every company, every online shop and every blog has to deal with the topic of online marketing sooner or later. With OM Optimiser, you have all the tools you need to manage and optimise your digital channels yourself. Thanks to OM Optimiser, you don’t even need extensive knowledge or special training. See exactly what you need to optimize and how the changes affect performance!

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Further functions in the OM Optimiser®

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Let others convince you!

With OM Optimiser we have finally found a comprehensive tool for our activities in the areas of SEO, SEA and mailing. It is a nice feeling to know that everything is constantly monitored automatically. Only with the OM Optimiser have we learned how often our website is offline. We also used the Search Console or Analytics far too rarely before. Now that everything is in one tool, this has changed suddenly. New insights were gained which were then incorporated into our online strategy.

Alexandra Weintritt | Geschäftsführer | Jet Ceuticals GmbH

The OM Optimiser supports our fast growing company with digitisation. Thanks to the tool’s artificial intelligence and the high degree of automation, we save a lot of valuable time. Our employees are no online experts, but thanks to the tool we still manage to achieve good results. We can easily find new keywords, create SEO texts via the content mask and automatically see if and how these texts rank. As a managing director, I primarily use the app and I love the fact that I can always keep track of everything even when I’m on the road. For most important events the tool sends a push message. So I don’t have to take my time and actively study the tool, but am simply informed when there is something important.

Sven Salomon | Geschäftsführer | Klug versichert

The integrated approach of the tool is fantastic. Everything comes together in one platform. The OM Optimiser is the linchpin of online marketing for us. As a managing director, not only the performance – e.g. SEO – plays a role, but also that everything is in order with the website and that no risks arise. Here, the alert system, security function, uptime monitoring, etc. appealed to me.

David Hoffmann | Geschäftsführer | Creditreform

We switched to OM Optimiser to give our employees from all countries access to the online marketing key figures. Working together in an international team has become much easier thanks to OM Optimiser and each country can benefit from the results and To Dos of the others. Thanks to fair pricing, all employees and service providers finally have access. I as the managing director can easily compare the performance of all countries and see what is done by which employees and where.

Martin Björn Thomson | Geschäftsführer | EM Group GmbH

As a handicraft enterprise we do not have online marketing specialists. Nevertheless online is becoming more and more important and every company has to position itself somehow. The OM Optimiser is affordable and takes the complexity out of online marketing for us. We no longer need 15 tools, but have everything in a cheap solution for about 35 €. We check our regional SEO rankings, create SEO optimized texts, send mailings to customers and check who is promoting our brand on Google.

Manuel Rudolf | Geschäftsführer | Abflussblitz

Especially in a network in cooperation with many service providers in different countries, the OM Optimiser saves a lot of time. You have one tool for different tasks and keep an overview of everything centrally – even when you’re on the road.

Alert functions and push notifications keep you up to date and inform you promptly when action is required. Another plus point in trademark law: the brand protection tool.

Désha Nujsongsinn | Freier Creative Director

With the OM Optimiser we have an online marketing tool that we use in almost all projects. It is international, affordable and we can easily overview, manage and optimize the entire online marketing. Companies can not only monitor and optimize their SEO, but also have topics such as brand protection, security and mailings on their screen. Especially in times of digitalization it is important to set up the online area optimally without much effort. I also find the app particularly practical, as I am on the road a lot and thus have a view of all projects at any time even when I am on the road.

Johan Scheid | Blantyre Capital

Our free checks at a glance

Backlink Check

Analyze the quality of the links that point to your website with our Backlink Checker. Judge the trustworthiness of received links.

SEO check

The crawler of our SEO check checks your website and gives you professional optimization suggestions based on your individual circumstances.

Security check

With our Website Security Check you can quickly and easily check your site for known risks. Learn how to eliminate vulnerabilities.

Keyword planner

The Keyword Planner offers you free access to the relevant search words and keywords for your website. Find suitable keywords!

Website Speed Test

Fast loading times increase your Google ranking, as users stay longer on websites. Our website speed test shows you how you can improve your values.

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The OM Optimiser Free Account provides you with the most important functions for your online marketing - combined in one tool Upgrade your online marketing!

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  • Data from different sources automatically in one place – the OM Optimiser combines figures and information from over 20 different tools and processes them automatically for you. You don’t have that with any other online marketing tool.
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