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Security report for ollisandco.com

TC Group · Finance · United Kingdom

Medium risk. 3 critical or high findings in SSL/TLS, Network security and 1 other check.

Security score

68/100

Risk levelMedium

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

TC Group is a large UK-based professional services firm specializing in accountancy, tax, legal, financial planning, and business advisory services. Positioned as a Top 25 firm by Accountancy Age, TC Group has expanded its footprint through strategic mergers, including the recent acquisition of Ollis & Co in Warwickshire. The company targets business and individual clients seeking comprehensive financial and advisory solutions. Technically, the website is built on WordPress with modern plugins and SEO optimizations, delivering a fast and mobile-optimized user experience. Security posture is good with HTTPS and no obvious vulnerabilities, though the absence of security headers and published security policies suggests room for improvement. The missing WHOIS data for the domain is a concern but does not outweigh the professional presentation and trust signals on the site. Overall, TC Group demonstrates a mature digital presence aligned with its business stature, though verification of domain registration details is recommended to enhance trust.

Scanned

NIS2 and GDPR posture

GDPR outside view
68/ 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

3 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.

    • 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

  2. Network security

    Services reachable from the internet are the first thing attackers probe. Anything open that does not need to be should be closed.

    • High

      High-Risk Service Exposed: FTP

      Port 21 (FTP) is publicly accessible - FTP - Often unencrypted file transfer

      What to do: Consider restricting access to FTP or implementing strong authentication

      • NIS2 21(2)(e)
      • IR 2024/2690 6.7.2(f): Implementing Regulation (EU) 2024/2690, Annex point 6.7.2(f): Network security
      • NIST CM-7: NIST SP 800-53 Rev. 5 CM-7: Least Functionality
      • NIST SC-7: NIST SP 800-53 Rev. 5 SC-7: Boundary Protection

  3. GDPR outside view

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

    • 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

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

Keep watching ollisandco.com

This scan found 15 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

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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
95
Email security
98
DNS health
80
Network security
20
GDPR outside view
68
Average
68

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

Breach exposure

Leaked credentials and lookalike domains from OffSeq Breach. The counts are free; the detailed lists are paid add-ons.

Dark web exposure

Add-on

Leaked records that mention ollisandco.com, from OffSeq Breach.

No leaked records found

Breach holds no records for ollisandco.com right now. New leaks arrive continuously, so monitoring on Breach alerts you if that changes.

Monitor on Breach (opens in a new tab)

Technical appendix

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

Business context

Business profile

TC Group operates in the competitive UK finance sector, leveraging mergers and acquisitions to grow market share and regional presence. Its business model focuses on delivering integrated financial and advisory services through a network of offices and partner firms. The firm maintains a strong brand with consistent messaging and professional content, supported by active social media channels and client engagement platforms. Revenue streams likely include accountancy services, tax advisory, legal services, and financial planning. The partnership ecosystem includes multiple subsidiary and partner domains, indicating a broad operational footprint. Growth indicators include recent mergers and a focus on expanding service offerings. Strategic observations suggest TC Group prioritizes client-centric, tailored services with a focus on quality and regional expertise.

Security posture

The website enforces HTTPS and uses Google Tag Manager for controlled script deployment, reducing risk from third-party scripts. No sensitive data is exposed in the HTML, and no known vulnerable libraries are detected. However, the absence of key security headers such as Content-Security-Policy, X-Content-Type-Options, and X-Frame-Options reduces defense-in-depth. There is no publicly available security policy or incident response information, which limits transparency and preparedness perception. No vulnerability disclosure or security.txt file is present, which could hinder responsible vulnerability reporting. Overall, the security maturity is moderate to good but can be enhanced by implementing recommended headers and publishing security policies.

Recommendations

  1. Implement comprehensive security headers including Content-Security-Policy, X-Content-Type-Options, and X-Frame-Options to improve protection against common web attacks.
  2. Publish a clear security policy and incident response plan on the website to increase transparency and preparedness.
  3. Add a vulnerability disclosure policy or security.txt file to facilitate responsible reporting of security issues.
  4. Verify and update WHOIS domain registration information to improve trust and legitimacy perception.
  5. Regularly audit third-party scripts and plugins for vulnerabilities and update them promptly.

Contact details published on the site

Addresses
Legal name
TC Group Holdings Limited
Registration number
11251664
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
TC Group
Description
TC Group is an Accountancy Age ‘Top 25’ firm with offices across the UK offering accountancy, tax, legal, financial planning and advisory services. They recently completed a merger with Ollis & Co, a Leamington Spa-based accountancy practice, expanding their presence in Warwickshire. The firm provides tailored, holistic services to business and personal clients.
Key services
Accountancy, Tax, Legal Services, Financial Planning, Business Advisory
Content quality
excellent
Branding
consistent

Technology

Stack
WordPress, jQuery, WP Rocket, Yoast SEO, Google Tag Manager, Search & Filter Pro plugin, WP Google Maps
Platforms
WordPress CMS
Performance
fast
Mobile
excellent
Accessibility
good
SEO
excellent

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • No exposed sensitive data in HTML
  • Use of Google Tag Manager for controlled script loading

Analytics and tracking

Services
Google Tag Manager
Tracking level
moderate
Privacy practices
good

Advertising

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. Content is professionally presented and relevant to finance/accountancy sector
  3. Strong presence of business contact info and social media links
  4. Use of modern WordPress plugins and SEO best practices
  5. WHOIS data missing, which reduces trust score
  6. No explicit security policy or incident response info published
Technical notes

Notes

The website is built on WordPress CMS, utilizing modern plugins such as WP Rocket for performance optimization, Yoast SEO for search engine optimization, and Search & Filter Pro for enhanced search capabilities. It uses jQuery and Google Tag Manager for analytics and marketing tag management. The site is well-structured with valid HTML and CSS, optimized for mobile devices, and loads quickly. Accessibility features are present but could be further enhanced. Hosting provider details are not explicitly identified. The technical infrastructure supports a professional and scalable online presence, though continuous monitoring and updates are necessary to mitigate risks associated with third-party components.
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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