Your Domain Security Score
Email delivery rate
Legal compliance
Reputation protection
GDPR compliance
DNS spoofing
DNS hijacking
Cache poisoning
Man-in-the-middle
Email delivery rate & security
Encryption and security
Darknet data leaks
Brand reputation
Details for websec.nu
Click on a tile to see the details
SPF (websec.nu)
A missing, incorrect or too weak SPF record harbours enormous risks:
Email spoofing: Without an SPF record, there is a risk that attackers can send fake emails in the name of the domain. These fake emails can be used to carry out phishing attacks in which confidential information such as user names, passwords or financial data can be stolen or to distribute malicious code such as ransomware.
Deliverability problems: If the SPF record is missing or incorrect, this can lead to significant problems with the deliverability of emails. Email filters and spam filters can classify domain names without a valid SPF record as suspicious and treat emails from these senders as potential spam messages or block them.
Reputational damage: If forged emails are sent in the name of a domain, this can cause lasting damage to reputation and trust. Especially if customers and business partners are harmed and it becomes known that this could have been avoided.
Abuse of the domain: A domain can be misused to send spam or other harmful content if an SPF record is missing or due to errors in the SPF setup. This can lead to a serious problem, as the affected domain can end up on blacklists, which leads to considerable restrictions when sending emails.
SPF (subdomains of websec.nu)
A missing, incorrect or too weak SPF record harbours enormous risks:
Email spoofing: Without an SPF record, there is a risk that attackers can send fake emails in the name of the domain. These fake emails can be used to carry out phishing attacks in which confidential information such as user names, passwords or financial data can be stolen or to distribute malicious code such as ransomware.
Deliverability problems: If the SPF record is missing or incorrect, this can lead to significant problems with the deliverability of emails. Email filters and spam filters can classify domain names without a valid SPF record as suspicious and treat emails from these senders as potential spam messages or block them.
Reputational damage: If forged emails are sent in the name of a domain, this can cause lasting damage to reputation and trust. Especially if customers and business partners are harmed and it becomes known that this could have been avoided.
Abuse of the domain: A domain can be misused to send spam or other harmful content if an SPF record is missing or due to errors in the SPF setup. This can lead to a serious problem, as the affected domain can end up on blacklists, which leads to considerable restrictions when sending emails.
DMARC
A missing, incorrect or too weak DMARC record harbours serious risks:
- Phishing and spoofing: Without DMARC, attackers can send fake emails in the name of a domain, which can lead to phishing attacks or spoofing. can lead to phishing attacks or spoofing.
- Reputational damage: If emails are forged in the name of a domain, this can damage the reputation of the domain. reputation of the domain.
- Identity theft: Fake emails can be used by attackers to try to steal confidential information from users or to commit fraud. users or carry out fraudulent activities.
The consequences of a missing, incorrect or weak DMARC record can include
- Loss of trust: If a domain is frequently misused for phishing or spoofing attacks, this can this can affect users' trust in the authenticity of the emails.
- Damage to company reputation: If customers or partners become victims of phishing attacks, this can significantly damage the reputation of the company concerned.
- Impairment of deliverability: Emails without a correctly configured DMARC record can be recognised as suspicious by some email providers. providers may classify emails as suspicious or block them, which can impair deliverability. deliverability.
DNSSec
A missing or faulty DNSSEC harbours various risks:
- DNS spoofing: Without DNSSEC, an attacker can send fake DNS responses and redirect traffic to a malicious website. redirect traffic to a malicious website. This enables phishing attacks and man-in-the-middle attacks.
- Cache poisoning: An attacker can inject spoofed DNS responses into the cache of a DNS server, resulting in users being redirected to malicious websites. redirecting users to malicious websites.
- Man-in-the-middle attacks: Without DNSSEC, attackers can intercept and manipulate DNS traffic and send fake DNS responses to the user. DNS responses to the user in order to intercept sensitive data.
The consequences of missing or incorrect DNSSEC can be serious:
- Data theft: Through man-in-the-middle attacks, attackers can steal confidential information such as usernames, passwords or credit card details.
- Identity theft: Phishing attacks can lead to users entering their login details on fake websites, resulting in identity theft. websites, which can lead to identity theft and financial losses.
- Reputation damage: If a website is compromised and users are directed to malicious content, this can content, this can significantly affect users' trust in the affected organisation.
HTTPS (websec.nu)
A missing or faulty HTTPS harbours various risks for the security of the transmitted data. Without HTTPS, there is a risk of eavesdropping, where an attacker can intercept the data traffic, including sensitive sensitive information such as user names, passwords or credit card details.
Another risk is the manipulation of data. Without HTTPS, attackers can change the transmitted data on the way data en route to the server by modifying the content of the pages or injecting malicious scripts. This allows them to download malware to the client or redirect the user to fake websites, for example. websites.
The risks of missing or faulty HTTPS can have serious consequences. If confidential information such as usernames, passwords or credit card details are intercepted, they can be used for identity theft, fraud or financial abuse. Users could become victims of phishing attacks, where fake websites are created to steal personal data.
The manipulation of data can lead to users downloading malicious content that infects or harms their systems. infect or harm their systems. Attackers could also insert fake or fraudulent information on websites which can lead to loss of trust, reputational damage or financial loss.
HTTPS (www.websec.nu)
A missing or faulty HTTPS harbours various risks for the security of the transmitted data. Without HTTPS, there is a risk of eavesdropping, where an attacker can intercept the data traffic, including sensitive sensitive information such as user names, passwords or credit card details.
Another risk is the manipulation of data. Without HTTPS, attackers can change the transmitted data on the way data en route to the server by modifying the content of the pages or injecting malicious scripts. This allows them to download malware to the client or redirect the user to fake websites, for example. websites.
The risks of missing or faulty HTTPS can have serious consequences. If confidential information such as usernames, passwords or credit card details are intercepted, they can be used for identity theft, fraud or financial abuse. Users could become victims of phishing attacks, where fake websites are created to steal personal data.
The manipulation of data can lead to users downloading malicious content that infects or harms their systems. infect or harm their systems. Attackers could also insert fake or fraudulent information on websites which can lead to loss of trust, reputational damage or financial loss.
BIMI
A missing or incorrect BIMI harbours several risks:
- Identity misuse: Without BIMI, attackers can more easily send fake emails in the name of an organisation. organisation. It becomes more difficult for recipients to verify the authenticity of an email, leading to an increased risk of phishing attacks and fraud. risk of phishing attacks and fraud.
- Poor reputation: Without BIMI, organisations have less control over their email domains. This can lead to This can lead to reputational damage, as attackers can send emails with forged sender addresses. addresses. This can lead to an increased likelihood of legitimate emails being categorised as spam or fraudulent. classified as spam or fraudulent.
The consequences of a missing or incorrect BIMI can be
- Loss of trust: If recipients cannot be sure whether an email comes from a trustworthy source, this can lead to a loss of trust. source, this can lead to a loss of trust in email communication. This can harm both customers and business partners.
- Financial damage: Phishing attacks that are favoured by missing or incorrect BIMI can lead to financial damage. lead to financial damage. This can result in both direct financial losses and the loss of customers or business or business opportunities.
CAA
A missing or incorrect CAA entry harbours various risks:
- Lack of control over certificate issuance: Without a CAA entry, any CA can issue certificates for the domain. issue certificates for the domain. This increases the risk of phishing attacks, man-in-the-middle attacks and other fraudulent activities fraudulent activities where attackers use fake certificates to impersonate a legitimate domain. as a legitimate domain.
- Weakening of trustworthiness: The lack of CAA can compromise trust in the integrity and authenticity of the domain. authenticity of the domain can be compromised. Without clear guidelines for the certification authorities, there is authorities, there is a risk that insecure or unreliable certificates will be issued, which can affect the trust of users and customers. and customers.
The consequences of a missing or faulty CAA can be
- Security compromise: Attackers can use fake certificates to redirect users to fake websites or intercept their communications. websites or intercept their communications. This can lead to data loss, theft of sensitive information information or financial damage.
- Damage to reputation: If a domain falls victim to phishing or other fraudulent activity, this can damage the reputation of the company or organisation. reputation of the company or organisation. Users may lose confidence in the website and and turn away from using it.
TLSA (mail service)
A missing or faulty TLSA harbours various risks:
- Lack of authentication: Without TLSA, there is a risk that an attacker can position himself between the client and the server and intercept or manipulate the communication. server and intercept or manipulate the communication, as the certificates are not sufficiently authenticated. of the certificates.
- Certificate manipulation: Without TLSA, an attacker can use forged certificates to impersonate a legitimate website. website. This could result in sensitive information such as usernames, passwords or credit card credit card details, could be stolen or manipulated.
The consequences of a missing or faulty TLSA can be severe:
- Data Compromise: An attacker could be able to intercept or manipulate sensitive data, which can lead to identity theft, financial loss or the loss of confidential information.
- Reputational damage: If a website is compromised and malicious activity takes place, this can affect user users' trust and damage the reputation of the company or organisation.
MX
A missing or incorrect MX record can lead to various risks:
- Email failure: If the MX record is missing or incorrectly configured, this can result in emails cannot be delivered properly. This can lead to significant communication problems and delays.
- Email spoofing and phishing: A faulty MX can be exploited by attackers to send fake emails and impersonate a legitimate sender. and pretend to be a legitimate sender. This can lead to phishing attacks in which users are tricked into revealing sensitive information or downloading malicious files.
The consequences of a missing or incorrect MX record can be as follows:
- Loss of emails: if emails are not delivered correctly, important messages may be lost. This can lead to communication problems with customers, partners or employees and affect business operations. business operations.
- Damage to reputation: If attackers send fake emails on behalf of an organisation, this can damage the organisation's reputation. organisation's reputation. Recipients may distrust the organisation or question the authenticity of future emails. the authenticity of future emails.
- Security breaches: Phishing attacks can steal sensitive information or introduce malware onto systems. systems. This can lead to financial losses, data breaches and other security problems. security problems.
DNS
A missing or faulty DNS can entail various risks. If the DNS is not configured correctly or is not available, users may have difficulty accessing websites or other resources on the Internet. on the internet. A faulty DNS can also lead to misdirection, with users being redirected to redirected to fake or fraudulent websites, which can lead to security threats such as phishing.
The consequences of a missing or faulty DNS can be manifold. Users could lose access to important information or services on the internet. In cases of misdirection, users could disclose personal data or become victims of fraudulent activities. Companies could suffer a loss of revenue because customers are unable to reach their websites or lose confidence in the integrity of their services.
MTA-STS (Mail Transfer Agent-Strict Transport Security)
A missing, faulty or too weak MTA-STS mechanism harbours various risks:
- Danger of eavesdropping: Without MTA-STS, emails can be transmitted unencrypted, which poses a risk to the confidentiality of the information in the emails. confidentiality of the information in the emails.
- Man-in-the-middle attacks: An attacker could intercept an unencrypted connection and read or manipulate the content of the emails. read or manipulate the content of the emails.
- Identity theft: An attacker could attempt to impersonate a legitimate email server and intercept sensitive information. information.
The consequences of a missing or faulty TLSA can be severe:
- Compromise of confidential information: If emails are transmitted unencrypted, sensitive information can be information can be intercepted or compromised.
- Violation of data protection regulations: If personal data is transmitted unencrypted, this may violate data protection data protection regulations and can lead to legal consequences.
- Loss of customer trust: If an organisation does not implement sufficient security measures for the transport, this can affect customer confidence in the security of their communications. can be affected.
Data leaks
Leaked email data for a domain leads to various risks:
-
Increased SPAM/phishing volume
- Criminals use leaked email addresses to carry out targeted phishing and SPAM campaigns.
- The more personal or company-related information is contained in a phishing email, the the higher the probability that employees will fall for it.
- Particularly dangerous are deceptively real-looking attacks based on previously captured information ("spear phishing"). ("spear phishing").
-
Leaked access data (account takeover)
- In addition to email addresses, data leaks often also contain other sensitive information such as passwords, telephone numbers or addresses.
- If passwords are reused, attackers can carry out so-called "credential stuffing" attacks to log into company systems or other connected services.
- A compromised account can be used to send fraudulent emails or even gain unauthorised access to internal systems. unauthorised access to internal systems
-
Reputational and business damage
- Companies with many email addresses contained in leaks could be perceived as unsafe by business partners or customers. be perceived as insecure.
- Hacked or abused accounts can be misused for fraudulent activities, damaging the company's reputation. of the company.
- Legitimate company emails could also be flagged as SPAM or blocked by security filters, affecting business communications. which affects business communication.
-
Increased attack surface for social engineering
- Employees could be targeted and manipulated by leaked information.
- Attackers could pose as business partners, IT support or superiors in order to gain access to internal systems or sensitive information. internal systems or sensitive information.
Historie
Your domain currently still has security vulnerabilities.
Domains are the No. 1 point of attack -
we are happy to help you eliminate them.
If your domain is not comprehensively secured and continuously monitored, you run the risk of falling victim to spoofing, DNS hijacking or phishing attacks - all of which are serious threats that can cause significant financial and reputational damage.
Use our task force for secure domains:
- Block spoofing attacks and prevent identity theft.
- Minimise costly downtime and protect your brand image.
- Receive early warnings through proactive domain & email monitoring.
Sign up for our free consultation and find out how you can turn your domain into an impregnable fortress with the right mechanisms.
4,9 out of 5 stars | OMR Reviews - nicmanager
The consultation worth EUR 100 is free of charge and non-binding.
Places per week are limited by our capacities.
Why is email and domain security vital for your company?
Emails and domains are the backbone of all modern communication.
Domains and emails are the centrepiece of your online communication.
Most organisations do not protect and exploit this potential .
What are the consequences of inadequate domain security?
Inexplicable bounces & delivery problems:
Inexplicable bounces & delivery problems:
Non-compliance with legal requirements:
Spoofing and phishing attacks:
High costs, data leaks and a lasting loss of customer trust in your brands are the consequences of successful attacks against your attack surfaces.
No overview without monitoring:
IT security is not a luxury - it's a duty.
The IT-Grundschutz is developed by the Federal Office for Information Security (BSI) and offers proven methods for securing IT systems. The NIS-2 guideline originates from the European Union (EU) and obliges particularly critical and important companies to implement strict cyber security measures. Both concepts aim to protect organisations from cyber attacks, data loss and operational disruptions.
The risks
Data loss
e.g. a ransomware attack encrypts your customer data and ransom demands are made. Without a backup, your organisation comes to a standstill.
Production downtime
e.g. a manipulated control system paralyses a supplier's machines. Delays in delivery cost major customers and orders.
Insurance
For example, damage is not covered by insurance if you have not complied with mandatory safety mechanisms.
Reputational damage
e.g. a hacked online shop loses the trust of customers overnight. Subsequent negative reviews will ruin your business.
Identity theft
e.g. stolen employee data enables fraud and falsified transactions, which represent an enormous financial risk.
Legal consequences
e.g. a bank loses customer data due to a lack of protection. In addition to reputational damage, penalties of up to 4% of annual turnover may be imposed.
Domain and e-mail security is important for all areas.
Advantages for marketers
Increase sales
The success of every email depends on your authentication. Prevent blocked emails and directly increase your sales.
Brand reputation
Stop misuse of your domains and emails. Protect your image and your customers from fraudsters and ensure trust in your brand.
Trust bonus
Secure websites and domains increase trust in your web presence and thus boost your ranking, conversion rate and customer loyalty.
Advantages for IT specialists
Email security
Protect your domain from phishing, spoofing and BEC. Automate your email security with monitoring, alerts and reports.
System stability
Proactive safety measures avoid stressful crisis operations and failures. This is how you ensure smooth processes in your organisation.
Compliance
Certifications such as ISO 27001 provide proof of security, facilitate tenders and avoid expensive contractual risks.
Advantages for management
Legal certainty
Compliance with legal requirements protects your company and you from penalties and ensures protection through insurance.
Competitive advantage
Your company can secure partnerships with large companies through IT security because it is demonstrably more secure than its competitors.
Future-proof
Preventing cyber risks ensures long-term growth and avoids financial losses and production downtime.
every month to secure their domains.
Our offer for your e-mail security and performance
Do it yourself
With our all-in-one platform, you can improve your domain's reputation, reduce the risk of cyberattacks and solve email deliverability issues - all on a single platform.
- DMARC, SPF, DKIM, DNS-SEC, TLS and domain monitoring
- Prevent business email compromise attacks, phishing emails, email fraud and other cyber threats
- Improve email deliverability to effectively reach inboxes
4,9 out of 5 stars | OMR Reviews - nicmanager
We'll take care of it for you
Our tried-and-tested DomainSecurity Task Force specialises in email and domain security and takes you step by step to seamless domain security.
- Equipped for 2025: Together we tackle DMARC, SPF, DKIM, other factors and domain monitoring.
- No risk for you. We guarantee you a domain security score of 80 or your money back with no questions asked.
- Full control over your domains and emails, recognise and stop spam and hacking attempts. Increase your email delivery rate and thus the effectiveness of campaigns and transactional emails.
4,9 out of 5 stars | OMR Reviews - nicmanager
The DomainSecurity Task Force - Seamless domain security.
We do this together with you:
- Professional implementation: of your DMARC records and other security mechanisms, including the integration of third-party tools.
- Preventive measures: Minimise the risks of misconfigurations.
- Full monitoring: Full control over your domains and emails - detect and stop spam and hacking attempts.
- Targeted approach: Analysing your data and identifying solutions to problems.
- All-round service: We train you and your employees in the use of DMARC and co. so that you are equipped for all further tasks.
Sign up for our free consultation and find out how you can turn your domain into an impregnable fortress with the right mechanisms.
4,9 out of 5 stars | OMR Reviews - nicmanager
The consultation worth EUR 100 is free of charge and non-binding.
Places per week are limited by our capacities.
About us
We are experts in cyber and domain security
InterNexum GmbH is a globally active company based in Germany. As a specialised provider of corporate domain solutions, it is an important player on the international stage of the domain industry. The company is one of the leading German companies in the field of domain risk management & domain security and is involved in various national and international initiatives for more cyber security in companies.
With nicmanager® we offer optimised solutions in the field of corporate domain management & cyber security tailored to business needs. We have already managed over 1,000,000 domains for more than 4,000 customers from various industries, including large global organisations as well as small and medium-sized companies.
InterNexum GmbH is partner of the Alliance for Cyber Security (ACS), an initiative of the Federal Office for Information Security (BSI), which was founded in 2012 in cooperation with the German Association for Information Technology, Telecommunications and New Media (BITKOM). As an association of all key players in the field of cyber security in Germany, the ACS aims to strengthen Germany's resilience to cyber attacks, expand IT security expertise in German organisations and promote a better and uniform assessment of the situation. In order to provide all interested companies with information and recommendations for action, the ACS is building up a comprehensive knowledge base and supporting the exchange of information and experience. More than 5,200 institutions now belong to the Alliance, including almost 100 partner companies and more than 40 multipliers.
Lookup and generator tools
Discover more nicmanager tools and improve your domain and email security and delivery rates.
