Skip to main content

Security report for bdo.co.uk

BDO · Finance · United Kingdom

Low risk. No critical or high findings.

Security score

87/100

Risk levelLow

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

BDO is a globally recognized accountancy and business advisory firm operating in 167 countries with 1,600 offices worldwide. The website reflects a mature enterprise-grade digital presence with comprehensive content targeting ambitious, high-growth businesses. The technical infrastructure leverages modern analytics, consent management, and accessibility tools, hosted on Microsoft Azure with Kentico CMS. Security posture is strong with HTTPS enforcement, anti-CSRF measures, and cookie consent compliance. No critical vulnerabilities or suspicious indicators were found. Overall, the site demonstrates a professional, trustworthy, and compliant online presence suitable for a large financial services organization.

Scanned

NIS2 and GDPR posture

GDPR outside view
100/ 100 · Low
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

No critical or high findings. These medium findings are worth fixing next.

  1. DNS health

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

    • Medium

      DNSSEC Not Enabled

      DNSSEC is not configured for this domain

      What to do: Enable DNSSEC to prevent DNS spoofing attacks

      • CAPEC-142
      • RFC 4033
      • RFC 4035
    • Medium

      Domain Transfer Lock Not Enabled

      Domain can be transferred without authorization

      What to do: Enable domain transfer lock for security

  2. Email security

    SPF, DKIM and DMARC stop others sending email that looks like it comes from your domain, a common route to phishing and invoice fraud.

    • Medium

      No MTA-STS Policy

      MTA-STS enforces TLS for email delivery

      What to do: Implement MTA-STS to prevent downgrade attacks

  3. 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.

    • Medium

      Missing X-XSS-Protection header

      Legacy XSS protection (deprecated but still recommended)

      What to do: Add "X-XSS-Protection: 1; mode=block"

    • Medium

      Missing Permissions-Policy header

      Controls browser features and APIs

      What to do: Implement a Permissions-Policy to restrict feature access

      • OWASP Secure Headers: OWASP Secure Headers Project recommends Permissions-Policy: accelerometer=(), autoplay=(), camera=(), cross-origin-isolated=(),…

Keep watching bdo.co.uk

This scan found 13 issues across 5 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.

Billed monthly to your card. Cancel anytime. The full timeline opens with your unlock code.

Full report

€39.90one-time

  • The complete analysis as a PDF you can cite
  • Email delivery with an unlock code
  • Lifetime access to this report

Prices incl. 21% VAT. Secure checkout by Mollie; sold by SEQ SIA, Latvia.

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
100
Security headers
70
Email security
82
DNS health
70
Network security
100
GDPR outside view
100
Average
87

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

BDO's market positioning as a global professional services firm is supported by its extensive network and service offerings in accountancy and advisory. The business model focuses on providing expert financial and business advice to growth-oriented companies. The website's integration with multiple analytics and marketing platforms indicates a data-driven approach to customer engagement and lead generation. The presence of partner domains and global reach suggests a well-established partnership ecosystem. The lack of direct contact info in the analyzed content may indicate contact details are provided in dedicated sections or via forms.

Security posture

The website employs strong security best practices including HTTPS with forced SSL, Content Security Policy, and anti-CSRF cookies. Cookie consent is managed via Cookiebot with granular user controls, supporting GDPR compliance. Use of Microsoft Application Insights and other analytics tools indicates active monitoring. However, explicit security policies, incident response contacts, and vulnerability disclosure mechanisms are not found, representing areas for improvement. No exposed sensitive data or vulnerable libraries were detected in the provided content.

Recommendations

  1. Publish a dedicated security policy and incident response information on the website.
  2. Implement and publicize a vulnerability disclosure program or security.txt file.
  3. Regularly audit third-party scripts and tracking tools for security and privacy compliance.
  4. Enhance visible trust signals such as certifications and compliance badges on the site.
  5. Maintain and improve accessibility and mobile optimization to ensure broad user reach.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
BDO
Description
BDO is an accountancy and business advisory firm. Our global network operates in 167 countries with 1,600 offices worldwide.
Key services
Accountancy, Advisory, Business Advice
Content quality
excellent
Branding
consistent

Technology

Stack
Google Tag Manager, Cookiebot, CrazyEgg, Microsoft Application Insights, Visual Website Optimizer (VWO), Ceros SDK, Fathom Analytics, UserWay Accessibility Widget, Azure Hosting
Performance
moderate
Mobile
good
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced with forceSSL
  • Cookie consent with granular controls
  • Use of anti-CSRF cookie (.AspNetCore.Antiforgery.#)
  • Use of security monitoring via Microsoft Application Insights

Analytics and tracking

Services
Fathom Analytics, Microsoft Application Insights, CrazyEgg, Clarity, Visual Website Optimizer
Tracking level
moderate
Privacy practices
good

Advertising

Ad networks
Bing Ads, Google Ads
Tracking pixels
CrazyEgg, Visual Website Optimizer, Cookiebot, Microsoft Application Insights
Marketing tools
Cookiebot, CrazyEgg, Clarity
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 cookie consent and privacy compliance mechanisms in place.
  3. Use of multiple analytics and marketing tools with user consent.
  4. No contact emails or phone numbers explicitly found in provided HTML snippet.
  5. WHOIS data for the exact subdomain is unavailable due to Nominet rules; domain is a subdomain of 'bdo.co.uk'.
  6. Website uses HTTPS with strong security practices.
  7. Content is professional, relevant, and well-structured.
  8. No suspicious or malicious content detected.
Technical notes

Notes

The website uses a modern technology stack including Kentico CMS, Microsoft Azure hosting, and multiple analytics and marketing tools such as Google Tag Manager, Cookiebot, CrazyEgg, and Visual Website Optimizer. Performance is moderate with deferred loading of scripts and preloading of fonts and CSS. Accessibility features are implemented via UserWay widget and semantic HTML. SEO is supported by meta tags and Open Graph data. The site is mobile optimized with responsive design. Technical risks are minimal but ongoing monitoring of third-party dependencies is advised.
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

Reviews of this site

Share your experience with bdo.co.uk. Every review is verified by email and published after moderation.

Overall rating
Select a rating
4000 characters remaining

We’ll email you to confirm your review and keep your details private.

Community rating

No published reviews yet. Be the first to review bdo.co.uk.

Feedback on this report

Rate this report, add an optional comment, and tell us if you want a security specialist to follow up.

Overall report quality
Select a rating
2000 characters remaining

We only use your feedback to improve Guard reports. Contact details are never shared.