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Security report for capitalone.com

Capital One · Finance · United States

Medium risk. 5 critical or high findings in Security headers, GDPR outside view and 1 other check.

Security score

73/100

Risk levelMedium

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

Capital One is a leading diversified bank headquartered in the United States, offering a wide range of financial products including credit cards, checking and savings accounts, and auto loans. The company targets both consumers and businesses, positioning itself as a major player in the financial services industry with a strong digital presence. The website reflects a mature and professional brand with comprehensive service offerings and clear navigation tailored to its audience. Technically, the site employs modern web technologies such as Angular, New Relic monitoring, Adobe Target for marketing, and Amazon Cloudfront CDN for hosting, ensuring fast performance and mobile optimization. Security is robust, with HTTPS enforced, strong security headers, and compliance with industry standards like ISO 27001 and PCI DSS. Privacy policies and incident response procedures are clearly documented, supporting GDPR compliance and user trust. Despite the absence of WHOIS data due to registry or privacy policies, the overall digital footprint and security posture indicate a legitimate and trustworthy enterprise. Strategic recommendations include maintaining up-to-date third-party libraries, enhancing user security education, and continuous monitoring to uphold security standards.

Scanned

This is an earlier scan of capitalone.com. View the latest report

NIS2 and GDPR posture

GDPR outside view
53/ 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

5 findings rated critical or high. Fix these first.

  1. Security headers

    Security headers are instructions your web server sends to every visitor’s browser. Missing ones leave visitors more exposed to attacks such as clickjacking and injected scripts.

    • High

      Missing Content-Security-Policy header

      Controls resources the browser is allowed to load

      What to do: Implement a Content-Security-Policy appropriate for your application

      • ASVS V3.4.3
      • OWASP Secure Headers: OWASP Secure Headers Project recommends Content-Security-Policy: default-src 'self'; form-action 'self'; base-uri 'self'; object-src 'none';…

  2. 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

  3. 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 capitalone.com

This scan found 19 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

€25per month

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

Email alerts on material changes and an exportable JSON history of every change.

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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
62
Security headers
55
Email security
82
DNS health
85
Network security
100
GDPR outside view
53
Average
73

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

Capital One operates in the finance sector with a business model centered on providing banking and credit services to a broad customer base. Its market position as a top US bank is supported by a diversified portfolio and strong digital infrastructure. Revenue streams include interest income, fees from credit cards, and loan products. The company targets consumers and small to medium businesses, leveraging partnerships and subsidiaries to expand its service offerings. The website's content and structure reflect a focus on customer engagement and trust, with clear calls to action and comprehensive product information. The presence of multiple tracking and marketing tools indicates a mature digital marketing strategy aimed at customer acquisition and retention.

Security posture

The website demonstrates a high level of security maturity, employing HTTPS with strong SSL configurations and multiple security headers such as CSP and HSTS. The use of input masking and secure form handling reduces risks of data leakage. Monitoring tools like New Relic provide real-time insights into performance and security events. The company maintains documented security policies and incident response plans, indicating preparedness for potential threats. No vulnerabilities or exposed sensitive data were detected in the analysis. Compliance with standards such as ISO 27001 and PCI DSS further strengthens the security posture. Recommendations include ongoing vulnerability assessments and user awareness programs to mitigate phishing and social engineering risks.

Recommendations

  1. Maintain regular updates and patching of all third-party libraries and dependencies to prevent vulnerabilities.
  2. Enhance user education initiatives focusing on phishing awareness and secure online behavior.
  3. Continue to invest in advanced monitoring and incident response capabilities to quickly detect and mitigate threats.
  4. Ensure consistent security policies and configurations across all subdomains and related digital assets.
  5. Develop a long-term security strategy that includes zero-trust principles and continuous compliance monitoring.

Contact details published on the site

Addresses
Legal name
Capital One Financial Corporation
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Capital One
Description
Capital One is a diversified bank that offers a broad array of financial products and services to consumers, small businesses, and commercial clients.
Key services
Credit Cards, Checking Accounts, Savings Accounts, Auto Loans, Business Banking
Content quality
excellent
Branding
consistent

Technology

Stack
JavaScript, New Relic monitoring, Adobe Target, Cloudfront CDN, OneTag tracking
Frameworks
Angular (indicated by ng-app attributes)
Platforms
Web
Performance
fast
Mobile
excellent
Accessibility
good
SEO
good

Security

Observed score
90/100
Good practices seen
  • HTTPS enforced
  • Use of CSP
  • Secure cookies
  • Input masking in forms
  • Use of security monitoring tools (New Relic)

Analytics and tracking

Services
New Relic, Google Analytics (implied via GTM)
Tracking level
extensive
Privacy practices
good

Advertising

Ad networks
Google DoubleClick
Tracking pixels
New Relic, Adobe Target
Marketing tools
Adobe Target, OneTag
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 challenge.
  2. Strong use of modern web technologies and performance optimization.
  3. Comprehensive security and privacy policies are present.
  4. Multiple tracking and analytics tools are used, with consent mechanisms.
  5. WHOIS data is unavailable, but this is common for large financial institutions.
  6. No suspicious or malicious content detected.
  7. Website targets consumers and businesses for financial products.
Technical notes

Notes

The website is built using modern web technologies including Angular framework, with extensive use of JavaScript for dynamic content and user interaction. Performance is optimized through the use of Amazon Cloudfront CDN and asynchronous loading of scripts. The site includes advanced analytics and marketing tools such as New Relic, Adobe Target, and Google Tag Manager, indicating a sophisticated digital marketing and monitoring infrastructure. Accessibility features and responsive design are well implemented, providing a good user experience across devices. Technical debt appears minimal, with opportunities for further modernization including enhanced automation of security testing and deployment pipelines.
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

Earlier scans of this domain

  1. 74/100Medium26 findingsView report
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