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Security report for nerdwallet.com

NerdWallet · Finance · United States

Low risk. 4 critical or high findings in GDPR outside view and SSL/TLS.

Security score

78/100

Risk levelLow

0–100, higher is better. How it is calculated

NerdWallet is a leading personal finance website that provides consumers with comprehensive financial product comparisons and advice. The platform targets individuals seeking guidance on credit cards, loans, mortgages, investing, and money management. It operates primarily in the US market and is recognized for its user-friendly interface and extensive research-backed content. Technically, NerdWallet employs modern web technologies including React and Next.js, supported by robust analytics and marketing tools such as Segment, Google Analytics, and various tracking pixels. The website demonstrates excellent performance, mobile optimization, and SEO practices. From a security perspective, NerdWallet enforces HTTPS, implements key security headers, and maintains secure forms, reflecting a mature security posture. However, the absence of public WHOIS registrant data slightly reduces transparency but is mitigated by the professional presentation and comprehensive policies. Overall, NerdWallet presents a low-risk profile with strong business credibility and technical maturity.

Scanned

NIS2 and GDPR posture

GDPR outside view
70/ 100 · Medium
Checks completed
7of 7

NIS2 Art. 21(2)

  1. (a) Risk analysis and security policies: Not visible from outside
  2. (b) Incident handling: One indicator
  3. (c) Business continuity, backups and crisis management: Not visible from outside
  4. (d) Supply chain security: Not visible from outside
  5. (e) Secure acquisition, development and maintenance, including vulnerability handling: Partly checked
  6. (f) Assessing the effectiveness of security measures: Not visible from outside
  7. (g) Cyber hygiene and security training: Not visible from outside
  8. (h) Cryptography and encryption: Partly checked
  9. (i) HR security, access control and asset management: One indicator
  10. (j) Multi-factor authentication and secured communications: Not visible from outside

This scan rated NIS2 with an earlier keyword method that is no longer shown; rescan for the per-article view. Risk management, continuity, supply chain, training, MFA, management oversight (Art. 20) and incident reporting (Art. 23) need internal evidence, and Guard cannot tell whether NIS2 applies to this organisation.

GDPR is indicative only, based on publicly visible signals: Articles 7, 12, 13 and 32 of Regulation (EU) 2016/679 and Article 5(3) of the ePrivacy Directive. Not a certification or legal assessment.

Priority findings

4 findings rated critical or high. Fix these first.

  1. GDPR outside view

    These are the privacy signals visitors and data protection authorities look for under GDPR.

    • High

      No Cookie Policy found

      GDPR requires clear information about cookie usage

      What to do: Add a dedicated cookie policy explaining cookie usage and purposes

    • High

      No Cookie Consent Banner found

      GDPR requires explicit consent for non-essential cookies

      What to do: Implement a cookie consent banner that appears on first visit

  2. SSL/TLS

    TLS encrypts the connection and proves the site is really yours. Weak or expiring certificates trigger browser warnings and put traffic at risk.

    • High

      Weak Protocols Supported

      Server supports weak protocols: TLSv1.1

      What to do: Disable TLS 1.0, TLS 1.1, and all SSL versions

      • CWE-327
      • OWASP A04:2025
      • ASVS V12.1.1
    • High

      Weak SSL Key Length

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

      What to do: Use at least 2048-bit RSA or 256-bit ECC key

      • CWE-326
      • OWASP A04:2025
      • Mozilla TLS: Mozilla Server Side TLS 6.0 intermediate: rsa_key_size 2048

Need hands-on remediation? Email guard@offseq.com

Keep watching nerdwallet.com

This scan found 17 issues across 6 checks. Monitoring re-runs those checks daily, emails you when something material changes and records each fix, so you can show progress.

Daily monitoring

Recommended

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  • TLS certificates and expiry
  • DNS records
  • SPF, DKIM and DMARC
  • Security headers
  • GDPR and NIS2 posture
  • Exposed services
  • Third-party trackers
  • Security score drift

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Results by check

Each check with its score, findings and the evidence it collected.

How this score is calculated

The security score runs 0–100, higher is better. It is the plain average of the security checks that completed in this scan, each counted equally. A check that could not run is left out: it counts neither as a pass nor as a fail.

Counted in this score

SSL/TLS
47
Security headers
85
Email security
80
DNS health
85
Network security
100
GDPR outside view
70
Average
78

Not counted

  • NIS2 outside view: Re-weights evidence from the TLS, email, DNS, network and hygiene checks, so counting it would count that evidence twice. Shown on its own.
  • OffSeq Observations: An AI reading of the site, useful context but not reproducible evidence. Shown on its own.

Findings that cap the score at 49

Each of these is serious on its own, so while any is present the site cannot rate better than high risk, however good the other checks are.

  • The certificate is not trusted by browsers
  • The website is not served over HTTPS
  • A database, remote desktop, file-sharing or Telnet service is reachable from the internet
  • The page loads a script from a compromised source
  • The domain registration has expired
  • SPF authorises every server to send mail as the domain

Partial scans

When the site blocks Guard or most checks cannot run, the score covers only the checks that ran (usually DNS and email), is capped at 75 and is shown as partial, without a risk level.

Risk levels

  • Critical0–25
  • High26–49
  • Medium50–75
  • Low76–100

Technical appendix

Business context, site observations and technical notes gathered during the scan, and the standards behind each reference.

Business context

Business profile

NerdWallet holds a strong market position as a trusted financial advice and comparison platform. Its business model revolves around affiliate marketing and advertising partnerships with financial institutions. The company targets a broad consumer base interested in personal finance solutions. The website's extensive use of third-party ad networks and tracking services supports its revenue streams but requires ongoing privacy compliance management. The lack of visible vulnerability disclosure or incident response policies suggests an opportunity for enhanced transparency. The company appears to maintain consistent branding and high-quality content, reinforcing its reputation and user trust.

Security posture

The website exhibits a solid security posture with enforced HTTPS, comprehensive security headers, and secure handling of user inputs. No immediate vulnerabilities or exposed sensitive data were detected in the HTML content. The integration of multiple third-party scripts necessitates vigilant monitoring to prevent supply chain risks. The absence of a public vulnerability disclosure policy or dedicated security contact points indicates room for improvement in incident response readiness and community engagement. Overall, NerdWallet's security practices align with industry standards for a large consumer-facing financial platform.

Recommendations

  1. Implement and publicize a formal vulnerability disclosure policy to encourage responsible reporting.
  2. Regularly audit and update third-party scripts and dependencies to mitigate supply chain risks.
  3. Enhance incident response transparency by providing dedicated security contact channels.
  4. Maintain rigorous privacy compliance monitoring given extensive tracking and advertising integrations.
  5. Consider publishing security certifications or compliance attestations to strengthen user trust.

Contact details published on the site

Addresses
Legal name
NerdWallet, Inc.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
NerdWallet
Description
NerdWallet makes it easy to find the right financial product for you. Our Nerds do all the research so you don’t have to.
Key services
Financial product comparisons, Personal finance advice, Credit card recommendations, Loan and mortgage guidance, Investment advice
Content quality
excellent
Branding
consistent

Technology

Stack
React, Next.js, Apollo GraphQL, Segment analytics, TikTok Pixel, Facebook Pixel, Bing Ads, Taboola, Veritonic, Cookielaw.org Consent Management
Frameworks
React, Next.js
Performance
fast
Mobile
excellent
Accessibility
good
SEO
good

Security

Observed score
90/100
Good practices seen
  • HTTPS enforced
  • Use of security headers
  • No exposed sensitive data in HTML
  • Secure forms with proper input handling

Analytics and tracking

Services
Google Analytics, Segment
Tracking level
extensive
Privacy practices
good

Advertising

Ad networks
Bing Ads, Taboola
Tracking pixels
Facebook Pixel, TikTok Pixel, Veritonic, Reddit Pixel
Marketing tools
Segment
Transparency
good

Site quality

Design
excellent
User experience
excellent
Content relevance
excellent
Navigation
excellent
Professionalism
excellent
Trustworthiness
high

Key observations

  1. Website is fully accessible with no blocking or WAF challenges.
  2. Content is rich, professionally presented, and focused on financial services.
  3. Strong use of modern web technologies and analytics/tracking tools.
  4. Privacy and cookie policies are present and comprehensive.
  5. No direct registrant WHOIS data available, possibly due to privacy protection or registrar policies.
  6. No explicit security incident response or vulnerability disclosure information found.
  7. Multiple third-party ad and tracking services are integrated.
  8. No adult or questionable content detected.
Technical notes

Notes

NerdWallet's technical infrastructure leverages modern JavaScript frameworks (React, Next.js) and GraphQL APIs, enabling a fast and responsive user experience. The site is well-optimized for mobile devices and incorporates accessibility best practices. The use of multiple analytics and marketing tools supports data-driven decision-making but requires careful management to balance user privacy. Hosting details are not explicitly identified, but the presence of CDN and cloud-based services suggests a scalable and robust environment. Continuous performance monitoring and technical debt management will be essential to sustain high availability and user satisfaction.
Standards and sources

Reference chips under each finding point to the standard, regulation or specification the finding relates to. They are taken from the official datasets below and mapped conservatively: a finding with no defensible link shows none. NIS2 and GDPR references mark where a finding is relevant evidence, not a compliance verdict. Implementing Regulation (EU) 2024/2690 binds digital infrastructure and digital service providers; for other entities it is the most detailed public reading of the Article 21 measures. WCAG, EN 301 549, European Accessibility Act and Web Accessibility Directive references name the requirement an automated accessibility rule relates to; they are not a conformance verdict.

Retrieved 2026-10-25

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