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A comprehensive evaluation of your website's security posture, identifying vulnerabilities before attackers do.
A website security audit is a systematic evaluation of your website's security posture. It involves identifying vulnerabilities, misconfigurations, and weaknesses that could be exploited by attackers. Unlike a simple vulnerability scan that relies on automated tools, a professional security audit combines automated scanning with manual expert analysis to provide a comprehensive view of your website's security health.
The audit process examines every layer of your web application: the frontend code, backend logic, server configuration, database security, API endpoints, authentication mechanisms, session management, and third-party integrations. The goal is to identify potential entry points attackers could use to compromise your system, steal data, or disrupt operations.
For UK businesses, a thorough security audit is not just a technical best practice — it is increasingly a regulatory requirement under frameworks such as GDPR, which mandates that organisations implement appropriate technical measures to protect personal data.
The cost varies based on several key variables. Understanding these helps you budget accurately.
A simple business site costs less to audit than a custom SaaS platform. E-commerce and membership portals require significantly more testing time.
More pages means more attack surfaces. Large sites with 200+ pages can require 2–4x more effort than small brochure sites.
Login systems, MFA, role-based access control, and session management are common sources of critical vulnerabilities.
Sites handling transactions require extensive payment flow testing, PCI DSS validation, and cryptographic review.
GDPR, PCI DSS, HIPAA, and ISO 27001 each impose specific testing requirements with additional rigour.
Automated scanning costs less but provides limited coverage. Manual testing by certified experts is essential for complex logic flaws.
Use our security audit cost calculator above to estimate pricing based on your specific requirements. The calculator accounts for all these factors to provide a realistic budget range.
Penetration testing cost UK typically ranges from £1,500 for a basic engagement to £15,000+ for comprehensive enterprise assessments. The wide range reflects variability in scope, depth, and expertise required.
A penetration test goes beyond automated scanning to simulate real-world attack scenarios. Certified ethical hackers use the same techniques as malicious actors to identify and exploit vulnerabilities.
Cyberattacks on UK businesses have reached unprecedented levels. According to the UK Government's Cyber Security Breaches Survey, nearly one-third of businesses reported a cyber security breach in the past 12 months. For medium and large businesses, this rises to over 60%.
The General Data Protection Regulation (GDPR) imposes strict requirements on any organisation processing personal data. Under GDPR, organisations must implement appropriate technical and organisational measures to ensure data security. A website security audit is critical for demonstrating GDPR compliance.
We follow a proven, methodical approach aligned with OWASP, NIST, and PTES standards.
We map your application's attack surface — subdomains, API endpoints, and third-party integrations — through passive reconnaissance that does not impact operations.
Using industry-leading tools, we identify known vulnerabilities, misconfigurations, and outdated components across your entire infrastructure and application stack.
Our certified experts manually test authentication, session management, access controls, input validation, and business logic — finding what automated tools miss.
For each vulnerability found, we attempt exploitation in a controlled manner to demonstrate real business impact with fully documented attack chains.
You receive a detailed, prioritised report with risk ratings, proof of concept, step-by-step remediation guidance, and executive summaries for stakeholders.
After your team implements fixes, we re-test to verify proper remediation before issuing the final compliance certificate and closure report.
Everything you need to know about website security audit pricing and process.
Website security audit costs typically range from £500 to £10,000+ depending on website type, number of pages, authentication complexity, payment processing, and compliance requirements. A basic WordPress audit may cost £400–£1,000, while a comprehensive e-commerce audit can range from £2,500 to £10,000+. Use our calculator above for an instant estimate tailored to your needs.
Key factors include: scope and size of the target environment, authentication system complexity, payment processing involvement, compliance requirements (GDPR, PCI DSS, HIPAA), testing depth (automated vs. manual), methodology, tester expertise, and engagement urgency.
Yes. A vulnerability assessment uses automated scans to identify known vulnerabilities. A penetration test goes further with manual exploitation to demonstrate real business impact. Penetration testing is more thorough and typically required for PCI DSS compliance.
Typically 2–35 business days depending on complexity. Simple sites take 2–5 days. Large e-commerce platforms with compliance requirements take 10–20 days. Enterprise engagements may require 20–35 days.
Yes. Ecommerce sites process payment data, integrate with third-parties, handle user authentication, and must comply with PCI DSS requirements. The attack surface is substantially larger.
A comprehensive audit includes: vulnerability scanning, manual penetration testing, authentication testing, input validation (SQL injection, XSS, CSRF), session management review, SSL/TLS assessment, server configuration review, code analysis, API testing, compliance gap analysis, and a detailed remediation report.
At least once every 12 months, or after significant changes. High-risk environments benefit from bi-annual audits supplemented with quarterly vulnerability scans.
GDPR mandates appropriate measures to protect personal data. A breach can result in fines of €20 million or 4% of annual global turnover. A security audit identifies data protection gaps and reduces breach risk.
Get a comprehensive security audit tailored to your specific needs. Our UK-based cybersecurity experts are ready to help.
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