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Security report for bk.com

Burger King · Retail · N/a

Partial score · DNS & email only

54/100

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

Burger King's website at bk.com presents a minimalistic digital presence primarily built using modern web technologies such as React Native Web and Expo Router, hosted on AWS infrastructure with CloudFront CDN. The site includes a cookie consent mechanism via OneTrust, indicating some level of privacy compliance effort. However, the website lacks visible content such as privacy policies, terms of service, or contact information, which limits user trust and transparency. From a security perspective, the site is undermined by the absence of a valid SSL certificate and HTTPS support, exposing users to potential risks. While security headers are properly configured, the lack of encryption and presence of a subdomain takeover vulnerability on dev.bk.com represent significant security concerns. The DNS and WHOIS data indicate legitimate domain registration consistent with the brand, but the subdomain issue requires urgent remediation. Overall, the website's technical infrastructure is modern but incomplete in critical areas such as security and content completeness. The lack of essential legal and contact information, combined with security vulnerabilities, results in a moderate to low trust level. Strategic improvements in SSL deployment, vulnerability mitigation, and content enrichment are necessary to enhance security posture and user confidence.

Scanned

3 of 7 checks could not complete. The site may be unreachable or blocking automated scans, so the results below cover only what could be checked. Try a rescan later.

NIS2 and GDPR posture

NIS2 outside view
Not assessed
GDPR outside view
Not assessed

Both readouts depend on the site's pages, which could not be loaded in this scan.

Priority findings

2 findings rated critical or high. Fix these first.

  1. 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.

    • Critical

      No HTTPS Encryption

      Website does not use HTTPS encryption, making all data transmission vulnerable to interception

      What to do: Implement SSL/TLS certificate and redirect all HTTP traffic to HTTPS

  2. DNS health

    DNS sends visitors and email to the right servers. Misconfigured records can cause outages or let someone redirect your traffic.

    • High

      Potential Subdomain Takeover

      Subdomain dev.bk.com points to unregistered service bkdotcom-dev-1479679686.us-east-1.elb.amazonaws.com

      What to do: Remove or fix CNAME record to prevent subdomain takeover

      • WSTG-CONF-10
      • NIS2 21(2)(i)
      • IR 2024/2690 12.4: Implementing Regulation (EU) 2024/2690, Annex point 12.4: Asset inventory
      • NIST CM-8: NIST SP 800-53 Rev. 5 CM-8: System Component Inventory

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

Keep watching bk.com

This scan found 6 issues across 4 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
0
Email security
50
DNS health
65
Network security
100
Average
54

Not counted

  • Security headers: did not complete in this scan.
  • GDPR outside view: did not complete in this scan.
  • 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

Burger King operates as a major global quick-service restaurant chain specializing in flame-grilled burgers and fast food. The business model is franchise-based, targeting general consumers seeking convenient dining options. The website reflects an enterprise-level organization with consistent branding but limited digital content. The absence of detailed business information or contact channels on the site suggests a focus on brand presence rather than direct customer engagement online. The company leverages AWS cloud services for hosting and content delivery, indicating a scalable and modern infrastructure. However, the lack of visible analytics or marketing integrations points to a conservative digital marketing approach or reliance on other channels.

Security posture

The security posture of bk.com is currently weak due to the absence of HTTPS and a valid SSL certificate, which is a critical vulnerability for any public-facing website. Although several security headers are implemented correctly, their effectiveness is diminished without encryption. The presence of a subdomain takeover vulnerability on dev.bk.com poses a risk of unauthorized content hosting or phishing attacks under the brand domain. No incident response or security policy information is available, and no vulnerability disclosure or security.txt files are found. The site does implement a Content Security Policy and XSS protection headers, which are positive indicators. Overall, the site requires urgent remediation to meet basic security standards and compliance requirements.

Recommendations

  1. Obtain and deploy a valid SSL/TLS certificate to enable HTTPS across all site endpoints.
  2. Address and remediate the subdomain takeover vulnerability on dev.bk.com immediately.
  3. Publish comprehensive privacy policy and terms of service documents accessible from the website.
  4. Add clear contact information including support and security incident response channels.
  5. Implement OCSP stapling and enable session resumption to improve SSL performance and security.
Technical notes

Notes

The website is built using React Native Web and Expo Router frameworks, indicating a modern JavaScript-based single-page application approach. Hosting is provided by Amazon S3 with CloudFront CDN for content delivery, ensuring scalability and global reach. The site includes OneTrust scripts for cookie consent management, reflecting some privacy compliance efforts. However, performance data is missing, and the site appears to have slow loading characteristics. Accessibility and SEO optimizations are basic, with minimal metadata and no structured data or Open Graph tags detected. The lack of valid SSL and TLS protocols is a significant technical debt and security risk. Overall, the technical infrastructure is modern but incomplete and requires improvements in security and content delivery optimization.
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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