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Is dataintensive.net a Scam? Security Check Results - Martin Kleppmann

dataintensive.net Security Report Summary

dataintensive.net received a security score of 57 out of 100 in Guard's comprehensive security analysis, classified as "Elevated Risk". This report covers Martin Kleppmann's website security posture. Martin Kleppmann operates in the Technology industry in N/a.

The website dataintensive.net is dedicated to promoting the technical book 'Designing Data-Intensive Applications' by Martin Kleppmann. It serves a niche audience of software engineers and technical professionals interested in distributed systems, data scalability, and reliability. The site provides detailed information about the book, author background, testimonials from industry leaders, and purchasing options. The business model centers on book sales and educational content dissemination, positioning itself as a trusted resource in the technology education sector. Technically, the website is built using standard web technologies including HTML5, Bootstrap 3.2.0, and jQuery 1.11.1, hosted via Cloudflare. The site is mobile responsive and well-structured, though it lacks advanced SEO and accessibility features. No CMS or analytics frameworks are detected, indicating a lightweight and straightforward implementation. The site uses HTTPS but lacks DNSSEC and security headers, which could be improved to enhance security posture. From a security perspective, the site demonstrates basic good practices such as HTTPS usage and stable domain registration without privacy protection. However, it lacks formal privacy, cookie, or security policies, and no incident response or vulnerability disclosure mechanisms are present. No forms or data collection points are found, reducing exposure to input-based vulnerabilities. The overall security score is moderate, with recommendations to implement security headers, privacy policies, and DNSSEC. Overall, the website is professional, trustworthy, and content-rich for its target audience. The absence of privacy and cookie policies and limited security headers are notable gaps. The risk level is low given the nature of the site and lack of sensitive data processing, but improvements in compliance and security best practices are advised to maintain trust and regulatory alignment.

The security scan identified 32 findings across security headers, SSL/TLS, DNS health, email security, GDPR compliance, and NIS2 compliance analysis modules.

Technologies detected: HTML5, Bootstrap 3.2.0, jQuery 1.11.1.

About this security scan

Guard performs automated security assessments of websites by analyzing SSL/TLS certificates, HTTP security headers, DNS configuration, email authentication protocols (SPF, DKIM, DMARC), GDPR compliance indicators, NIS2 directive compliance, network exposure, and AI-powered business intelligence. Each report provides domain-specific findings, risk scores, and actionable recommendations.

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Is dataintensive.net Safe? Security Analysis for Martin Kleppmann

https://dataintensive.net

Check if dataintensive.net is a scam or legitimate. Free security scan and reviews.

TechnologyN/asmall
HTML5Bootstrap 3.2.0jQuery 1.11.1
Analyzed 10/11/2025Completed 12:53:06 AM6mo ago
57
Security Score
MEDIUM RISK

Below Technology avg (72)

10,000+

Domains scanned

500+

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SEQ SIA

Lastadijas 12 k-3, Riga, Latvia, LV-1050

Reg. No. 40203410806 • VAT LV40203410806

Support: guard@offseq.com+371 2256 5353

AI Summary

The website dataintensive.net is dedicated to promoting the technical book 'Designing Data-Intensive Applications' by Martin Kleppmann. It serves a niche audience of software engineers and technical professionals interested in distributed systems, data scalability, and reliability. The site provides detailed information about the book, author background, testimonials from industry leaders, and purchasing options. The business model centers on book sales and educational content dissemination, positioning itself as a trusted resource in the technology education sector. Technically, the website is built using standard web technologies including HTML5, Bootstrap 3.2.0, and jQuery 1.11.1, hosted via Cloudflare. The site is mobile responsive and well-structured, though it lacks advanced SEO and accessibility features. No CMS or analytics frameworks are detected, indicating a lightweight and straightforward implementation. The site uses HTTPS but lacks DNSSEC and security headers, which could be improved to enhance security posture. From a security perspective, the site demonstrates basic good practices such as HTTPS usage and stable domain registration without privacy protection. However, it lacks formal privacy, cookie, or security policies, and no incident response or vulnerability disclosure mechanisms are present. No forms or data collection points are found, reducing exposure to input-based vulnerabilities. The overall security score is moderate, with recommendations to implement security headers, privacy policies, and DNSSEC. Overall, the website is professional, trustworthy, and content-rich for its target audience. The absence of privacy and cookie policies and limited security headers are notable gaps. The risk level is low given the nature of the site and lack of sensitive data processing, but improvements in compliance and security best practices are advised to maintain trust and regulatory alignment.

Detected Technologies

HTML5Bootstrap 3.2.0jQuery 1.11.1

12 urgent findings need attention

12 high

  • + 4 more findings in the full report below
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Security drift alerts

Risk score drops, new high-severity issues, and header hardening gaps

Compliance watch

GDPR / NIS2 posture changes with governance evidence snapshots

Infrastructure surface

Unexpected open services, SSL expiry, DNS & email authentication changes

Content & tracker intelligence

Marketing tech shifts, analytics drift, and AI recommendation updates

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Security Headers

8 findings

15/100

GDPR Compliance

4 findings

35/100

NIS2 Compliance

8 findings

17/100

Email Security

4 findings

70/100

🧠AI Business Intelligence

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

Business Intelligence

Market & Strategic Analysis

The website operates in the technology education sector, focusing on a specialized technical book authored by Martin Kleppmann. It holds a niche market position with strong endorsements from recognized industry figures, enhancing credibility. The business model is straightforward, relying on book sales and educational outreach. The target customers are software engineers and developers seeking deep understanding of data-intensive systems. The site does not appear to engage in extensive partnerships or affiliate marketing. Growth indicators include ongoing blog updates and multiple language translations. The partnership ecosystem is limited but includes reputable technology companies referenced in testimonials. The operation is small-scale and content-focused, with no evident revenue diversification beyond book sales.

Security Posture Analysis

Comprehensive Security Assessment

The security maturity of the website is basic to moderate. HTTPS is enforced, ensuring encrypted communications. The domain registration is transparent and consistent with the website's purpose. However, the absence of DNSSEC and security headers such as Content-Security-Policy and Strict-Transport-Security reduces defense-in-depth. No privacy or cookie policies are present, which may impact GDPR compliance. There is no visible incident response or vulnerability disclosure information, limiting transparency in security management. The lack of forms reduces attack surface, but also limits user engagement. Overall, the site is low risk but would benefit from enhanced security controls and compliance documentation to improve its security posture and user trust.

Strategic Recommendations

Priority Actions for Security Improvement

1

Enable DNSSEC on the domain to protect against DNS spoofing and improve domain security.

Observations

AI-powered comprehensive website and business analysis.

AI-Enhanced Website Analysis

Business Insights

Company:

Martin Kleppmann

Description:

The website promotes the book 'Designing Data-Intensive Applications' by Martin Kleppmann, focusing on educating software engineers about reliable, scalable, and maintainable data systems. It provides information about the book, author, testimonials, and purchasing options.

Key Services:
Book salesEducational contentAuthor blog updates
Content Quality:

excellent

Branding:

consistent

Technical Stack

Technologies:
HTML5Bootstrap 3.2.0jQuery 1.11.1
Frameworks:
Bootstrap
Performance:

moderate

Mobile:

good

Accessibility:

basic

SEO:

basic

Security Assessment

Security Score:
70/100
Best Practices:
  • HTTPS enabled

Analytics & Tracking

Tracking Level:minimal
Privacy Compliance:poor

Advertising & Marketing

Transparency Level:poor

Website Quality Assessment

Design Quality:good
User Experience:good
Content Relevance:excellent
Navigation Clarity:good
Professionalism:excellent
Trustworthiness:high

Key Observations

1

Website is focused on a single technical book and its author.

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🛡️Security Headers

HTTP security headers analysis and recommendations.

Security Headers

HTTP security headers analysis

15/100
Score

Missing Strict-Transport-Security header

HIGH

Forces HTTPS connections

Missing X-Frame-Options header

HIGH

Prevents clickjacking attacks

Missing X-Content-Type-Options header

MEDIUM

Prevents MIME type sniffing

Missing Content-Security-Policy header

HIGH

Controls resources the browser is allowed to load

Missing X-XSS-Protection header

MEDIUM

Legacy XSS protection (deprecated but still recommended)

Missing Referrer-Policy header

LOW

Controls referrer information sent with requests

Missing Permissions-Policy header

MEDIUM

Controls browser features and APIs

Sensitive data may be cached

LOW

Cache-Control header should include "no-store" for sensitive pages

👤GDPR Compliance

Privacy and data protection assessment under GDPR regulations.

GDPR Compliance

Privacy and data protection assessment

35/100
Score

No Privacy Policy found

HIGH

GDPR requires a clear and accessible privacy policy

No Cookie Policy found

HIGH

GDPR requires clear information about cookie usage

No Cookie Consent Banner found

HIGH

GDPR requires explicit consent for non-essential cookies

Third-party services without privacy policy

HIGH

Detected services: Twitter, LinkedIn, Google APIs

GDPR Compliance Analysis

Privacy Policy0% confidence
Cookie Policy0% confidence
Contact Information Found90% confidence
phone

🛡️NIS2 Compliance

Network & Information Security Directive compliance assessment.

NIS2 Compliance

Network & Information Security Directive

17/100
Score

No information security framework found

HIGH

NIS2 requires documented cybersecurity and information security measures

No vulnerability disclosure policy

MEDIUM

NIS2 encourages coordinated vulnerability disclosure

No security policy documentation found

HIGH

NIS2 requires documented cybersecurity governance and risk management

No incident response procedures found

HIGH

NIS2 requires documented incident response and business continuity plans

No business continuity planning found

MEDIUM

NIS2 emphasizes operational resilience and business continuity

No security contact information

HIGH

NIS2 requires clear incident reporting channels

No vulnerability reporting mechanism

MEDIUM

Clear vulnerability reporting supports coordinated disclosure

No NIS2 reference found

LOW

Consider explicitly mentioning NIS2 compliance efforts

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📧Email Security

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

Email Security

SPF, DKIM, and DMARC validation

70/100
Score

No DKIM record found

MEDIUM

DKIM adds cryptographic signatures to emails

No BIMI Record

LOW

BIMI displays brand logos in email clients

No MTA-STS Policy

MEDIUM

MTA-STS enforces TLS for email delivery

No TLS-RPT Record

LOW

TLS-RPT provides reporting for email TLS issues

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 mx include:spf.messagingengine.com ~all
DNS Lookups:3/10
Policy:~all

🏆SSL/TLS Security

Certificate validity and encryption analysis.

SSL/TLS Security

Certificate validity and encryption analysis

65/100
Score

SSL Certificate Expires Within 90 Days

MEDIUM

SSL certificate expires in 87 days

Weak SSL Key Length

HIGH

SSL certificate uses 256-bit key, which is considered weak

Mixed Content Detected

MEDIUM

3 resources loaded over insecure HTTP

Partial SSL/TLS Assessment

LOW

Completed 2 of 4 security checks due to time constraints

Certificate Details

Subject:dataintensive.net
Issuer:WE1
Valid Until:1/6/2026 (87 days)
SANs:dataintensive.net, *.dataintensive.net

OCSP Status

OCSP Stapling Disabled

📊DNS Health

DNS configuration and security assessment.

DNS Health

DNS configuration and security assessment

75/100
Score

DNSSEC Not Enabled

MEDIUM

DNSSEC is not configured for this domain

CAA Records Not Configured

LOW

Certificate Authority Authorization (CAA) records not found

No DMARC Record

MEDIUM

DMARC policy not configured

DNS Records

A Records:188.114.97.1, 188.114.96.1
AAAA Records:2a06:98c1:3120::1, 2a06:98c1:3121::1
Name Servers:
ed.ns.cloudflare.comDNS only
maria.ns.cloudflare.comDNS only
MX Records:
10: in1-smtp.messagingengine.com
20: in2-smtp.messagingengine.com
SOA:Serial: 2385428964, TTL: 1800s

DNSSEC Status

DNSSEC Not Enabled

DNS Performance

Resolution Time:52ms

SPF Analysis

SPF Record:
v=spf1 a mx include:spf.messagingengine.com ~all

Network Security

Port scanning and network exposure analysis.

Network Security

Port scanning and network exposure analysis

100/100
Score

Good Network Security Posture

LOW

No unnecessary services detected on common risky ports

How does dataintensive.net compare?

See how dataintensive.net stacks up against similar websites in the same industry.

🔧Technical Analysis

Detailed technical findings and analysis from AI assessment.

Technical Analysis

Comprehensive security assessment findings

Additional Findings

The website uses a simple and stable technology stack with Bootstrap 3.2.0 and jQuery 1.11.1, which are somewhat dated but still functional. The site is hosted on Cloudflare infrastructure, providing reliable DNS and HTTPS termination. Performance is moderate, with mobile optimization implemented via Bootstrap's responsive design. No CMS or analytics platforms are detected, indicating minimal technical complexity and reduced privacy concerns. The HTML structure is valid and well-organized, but SEO and accessibility could be improved with additional meta tags and ARIA attributes. The lack of modern JavaScript frameworks or CMS reduces potential technical debt but limits dynamic content capabilities.
Professional PDF & Marketing Data

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PDF Report & Export

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39.90 €one-time • Incl. 21% VAT

Marketing Intelligence

Contact emails, phone numbers & warm leads

49.90 €one-time • Incl. 21% VAT

Plan Comparison

FeaturePDF ReportMarketing+
Full security analysis
Professional PDF export
Email delivery
Lifetime access + unlock code
Contact emails & phones
Marketing outreach data

Already purchased?

Order summary

Domaindataintensive.net
Access tierFull report or marketing add-on

Digital reports are delivered immediately after payment. By continuing you acknowledge the withdrawal waiver described in our Returns & Refunds policy.

VisaMastercardApple PayGoogle Pay

Secure payments processed via EveryPay. Prices in EUR; Incl. 21% VAT.

SEQ SIA

Lastadijas 12 k-3, Riga, Latvia, LV-1050

Reg. No. 40203410806 • VAT LV40203410806

Support: guard@offseq.com+371 2256 5353

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