What is the security status of sidn.nl?

sidn.nl has a security score of 74/100, rated as Safe. The website demonstrates good security practices.

Is sidn.nl safe to use?

Our security scan shows sidn.nl is Safe. SSL security issues detected. Always practice safe browsing habits.

Does sidn.nl have viruses?

Our comprehensive security scan analyzes multiple security factors. Based on the overall security score of 74/100, the website is rated as Safe. However, websites can change over time, so always use updated security software.

What is sidn.nl's trust score?

sidn.nl has a security score of 74/100. This score is based on multiple factors including SSL security, security headers, DNS health, and compliance checks.

I want to know if sidn.nl is a legitimate website or if it's a scam.

According to our comprehensive security analysis, sidn.nl has a security score of 74/100, which indicates it is Safe. SIDN is the official registry operator for the .nl domain namespace, providing domain registration and cybersecurity services primarily to businesses and individuals in the Netherlands. The website is professionally designed with excellent content quality, clear navigation, and strong branding consistency. It offers key services such as Whois lookup, domain portfolio management, and cybersecurity solutions including brand monitoring to protect against phishing and reputational damage. The company maintains a strong market position as the authoritative .nl domain registry. Technically, the website employs modern web technologies including JavaScript, CSS, Algolia for search, Google Tag Manager, and Piwik PRO for analytics, alongside a consent management platform (Usercentrics) to ensure GDPR compliance. The site is mobile-optimized and accessible, with good SEO practices and performance. Security posture is strong with HTTPS enforced, appropriate security headers, and no visible vulnerabilities or exposed sensitive data. While the site lacks a dedicated security policy or incident response page, it demonstrates good privacy and cookie policy implementation with consent mechanisms. WHOIS data aligns well with the website's claims, confirming legitimacy and trustworthiness. No adult or questionable content is present, making the site safe for general audiences. Overall, SIDN's website reflects a mature, trustworthy, and professional digital presence suitable for its role as a critical internet infrastructure provider in the Netherlands.

Is sidn.nl Safe? Security Analysis for SIDN

https://sidn.nl

Check if sidn.nl is a scam or legitimate. Free security scan and reviews.

TechnologyNetherlandsmedium

JavaScriptCSSHTML5Algolia (search)Google Tag Manager+2 more

Analyzed 10/9/2025Completed 7:02:55 AM

Security Score

MEDIUM RISK

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Domainsidn.nl

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Reg. No. 40203410806 • VAT LV40203410806

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AI Summary

SIDN is the official registry operator for the .nl domain namespace, providing domain registration and cybersecurity services primarily to businesses and individuals in the Netherlands. The website is professionally desi… Unlock the full Guard report to read the complete analysis.

Detected Technologies

JavaScriptCSSHTML5Algolia (search)Google Tag ManagerPiwik PRO analyticsUsercentrics CMP

Security Headers

2 findings

90/100

GDPR Compliance

2 findings

80/100

NIS2 Compliance

6 findings

47/100

Email Security

1 finding

97/100

🧠AI Business Intelligence

Technology stack, business insights, and market analysis powered by AI.

Snapshot shown below. Unlock the full AI report for complete market insights, audience profiling, and step-by-step recommendations.

Business Intelligence

Market & Strategic Analysis

SIDN operates as an essential entity in the Dutch internet ecosystem, managing over 6 million .nl domains and processing billions of daily queries. Its business model centers on domain registry services and cybersecurity offerings, targeting businesses and individuals requiring domain management and protection against cyber threats. SIDN Labs acts as a research partner, enhancing cybersecurity capabilities. The company benefits from a strong brand, official status, and a comprehensive service portfolio. Growth indicators include active cybersecurity product development and community engagement through panels and newsletters. Partnerships with SIDN Labs and integration of advanced analytics tools support strategic operations and market positioning.

Security Posture Analysis

Comprehensive Security Assessment

The website demonstrates a high level of security maturity with enforced HTTPS, robust security headers, and secure form implementations. Privacy compliance is evident through detailed policies and consent management. However, the absence of a public security policy, incident response contact, or vulnerability disclosure program suggests room for improvement in transparency and incident readiness. No vulnerabilities or suspicious patterns were detected in the content or WHOIS data. The security culture appears proactive but could benefit from enhanced communication on security governance and incident handling.

Strategic Recommendations

Priority Actions for Security Improvement

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✨Observations

AI-powered comprehensive website and business analysis.

A preview of your strategic observations is visible. Upgrade to unlock the full competitive positioning, trust signals, and branding checklist.

AI-Enhanced Website Analysis

Business Insights

Company:

SIDN

Description:

SIDN manages the .nl domain namespace, offering domain registration services and cybersecurity solutions such as brand monitoring and phishing protection.

Key Services:

.nl domain registrationWhois lookupDomain portfolio managementCybersecurity services including SIDN MerkbewakingRegistry services

Content Quality:

excellent

Branding:

consistent

Technical Stack

Technologies:

JavaScriptCSSHTML5Algolia (search)Google Tag ManagerPiwik PRO analyticsUsercentrics CMP

Performance:

moderate

Mobile:

excellent

Accessibility:

good

SEO:

good

Security Assessment

Security Score:

90/100

Best Practices:

HTTPS enforced
Secure forms with CSRF protection implied
No exposed sensitive data in HTML
Privacy compliant cookie consent

Analytics & Tracking

Services:

Piwik PROGoogle Tag Manager

Tracking Level:moderate

Privacy Compliance:good

Advertising & Marketing

Tracking Pixels:

Piwik PRO

Marketing Tools:

Usercentrics CMP

Transparency Level:good

Website Quality Assessment

Design Quality:excellent

User Experience:excellent

Content Relevance:excellent

Navigation Clarity:excellent

Professionalism:excellent

Trustworthiness:high

Key Observations

Website is fully accessible with no blocking or WAF challenges.

🛡️Security Headers

HTTP security headers analysis and recommendations.

Some header findings are shown. Unlock to see the full checklist, impacted endpoints, and remediation guidance.

Security Headers

HTTP security headers analysis

90/100

Score

Weak X-XSS-Protection configuration

LOW

Current value: "0" Unlock the full report to read the complete fix.

Sensitive data may be cached

LOW

Cache-Control header should include "no-store" for sensitive pages Unlock the full report to read the complete fix.

🛡️NIS2 Compliance

Network & Information Security Directive compliance assessment.

You can see headline NIS2 checks. Upgrade to access the full control mapping, severity breakdown, and remediation plan.

NIS2 Compliance

Network & Information Security Directive

47/100

Score

No vulnerability disclosure policy

MEDIUM

NIS2 encourages coordinated vulnerability disclosure Unlock the full report to read the complete fix.

No incident response procedures found

HIGH

NIS2 requires documented incident response and business continuity plans Unlock the full report to read the complete fix.

No business continuity planning found

MEDIUM

NIS2 emphasizes operational resilience and business continuity Unlock the full report to read the complete fix.

No security contact information

HIGH

NIS2 requires clear incident reporting channels Unlock the full report to read the complete fix.

No vulnerability reporting mechanism

MEDIUM

Clear vulnerability reporting supports coordinated disclosure Unlock the full report to read the complete fix.

No NIS2 reference found

LOW

Consider explicitly mentioning NIS2 compliance efforts Unlock the full report to read the complete fix.

📧Email Security

SPF, DKIM, and DMARC validation and email security assessment.

Quick view of email authentication checks is provided. Unlock to uncover full DNS evidence, record diffs, and fix scripts.

Email Security

SPF, DKIM, and DMARC validation

97/100

Score

No TLS-RPT Record

LOW

TLS-RPT provides reporting for email TLS issues Unlock the full report to read the complete fix.

SPF

Sender Policy Framework

DKIM

DomainKeys Identified Mail

DMARC

Domain-based Message Authentication

MX Records

Mail Exchange Records

BIMI

Brand Indicators

MTA-STS

Mail Transfer Agent Security

TLS-RPT

TLS Reporting

DNSSEC

DNS Security

SPF Details

Record:

v=spf1 a:ops-relay03-p.sidn.nl a:ops-relay04-p.sidn.nl a:ops-relayf03-p.sidn.nl a:ops-relayf04-p.sidn.nl a:ops-monext02-p.sidn.nl include:spf.protection.outlook.com ~all

DNS Lookups:6/10

Policy:~all

DKIM Selectors Found

Selector:selector2(1296-bit rsa)

DMARC Details

Policy:quarantine

Subdomain Policy:quarantine

Aggregate Reports:dmarc@sidn.nl

MTA-STS Details

Mode:enforce

Max Age:28 days

🏆SSL/TLS Security

Certificate validity and encryption analysis.

This is a teaser of the TLS audit. Unlock to view certificate chains, cipher support tables, and remediation steps.

SSL/TLS Security

Certificate validity and encryption analysis

0/100

Score

Unable to retrieve SSL certificate

CRITICAL

Could not establish secure connection to retrieve certificate information Unlock the full report to read the complete fix.

Mixed Content Detected

MEDIUM

2 resources loaded over insecure HTTP Unlock the full report to read the complete fix.

OCSP Status

OCSP Stapling Disabled

📊DNS Health

DNS configuration and security assessment.

Unlock the full DNS posture audit to reveal misconfigurations, zone records, and actionable fixes.

DNS Health

DNS configuration and security assessment

90/100

Score

DNSSEC Not Enabled

MEDIUM

DNSSEC is not configured for this domain Unlock the full report to read the complete fix.

DNS Records

A Records:34.111.90.63

AAAA Records:2600:1901:0:8ca2::

Name Servers:

ns3.sidn.nlDNS only

ns4.sidn.nlDNS only

ns5.sidn.nlDNS only

MX Records:

0: sidn-nl.v-v1.mx.microsoft

DNSSEC Status

DNSSEC Not Enabled

SPF Analysis

SPF Record:

v=spf1 a:ops-relay03-p.sidn.nl a:ops-relay04-p.sidn.nl a:ops-relayf03-p.sidn.nl a:ops-relayf04-p.sidn.nl a:ops-monext02-p.sidn.nl include:spf.protection.outlook.com ~all

⚡Network Security

Port scanning and network exposure analysis.

See a glimpse of exposed services. Unlock to access full port inventories, CVE lookups, and mitigation priorities.

Network Security

Port scanning and network exposure analysis

100/100

Score

Good Network Security Posture

LOW

No unnecessary services detected on common risky ports Unlock the full report to read the complete fix.

🔧Technical Analysis

Detailed technical findings and analysis from AI assessment.

Unlock to view the complete technical breakdown, stack fingerprinting, and hardening checklist.

Technical Analysis

Comprehensive security assessment findings

Additional Findings

Unlock the full Guard report to review the complete technical breakdown and AI recommendations.

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Is sidn.nl a Scam? Security Check Results - SIDN Reviews

Is sidn.nl Safe? Security Analysis for SIDN

Unlock the complete security report for sidn.nl

How it works

Order summary

AI Summary

Detected Technologies

🧠AI Business Intelligence

Business Intelligence

Security Posture Analysis

Strategic Recommendations

✨Observations

AI-Enhanced Website Analysis

Business Insights

Technical Stack

Security Assessment

Analytics & Tracking

Advertising & Marketing

Website Quality Assessment

Key Observations

🛡️Security Headers

Security Headers

Weak X-XSS-Protection configuration

Sensitive data may be cached

👤GDPR Compliance

GDPR Compliance

No Cookie Consent Banner found

No Data Protection Officer mentioned

GDPR Compliance Analysis

🛡️NIS2 Compliance

NIS2 Compliance

No vulnerability disclosure policy

No incident response procedures found

No business continuity planning found

No security contact information

No vulnerability reporting mechanism

No NIS2 reference found

📧Email Security

Email Security

No TLS-RPT Record

SPF Details

DKIM Selectors Found

DMARC Details

MTA-STS Details

🏆SSL/TLS Security

SSL/TLS Security

Unable to retrieve SSL certificate

Mixed Content Detected

OCSP Status

📊DNS Health

DNS Health

DNSSEC Not Enabled

DNS Records

DNSSEC Status

SPF Analysis

⚡Network Security

Network Security

Good Network Security Posture

🔧Technical Analysis

Technical Analysis

Additional Findings

Related Partner Domains

www.sidnlabs.nl

stats.sidnlabs.nl

—out of 5