Website Security Testing

Website Security Testing Services

Practical security testing for public-facing websites, CMS-driven sites, corporate websites, and brochureware. Identify real risks before someone else does.
Book a Scoping Call View Pricing
CREST Pathway member Cyber Essentials certified UK Cyber Security Council member
Website security testing and assessment services for corporate and CMS websites

Website Security Assessment

What is website security testing?

Website security testing is a practical, focused assessment of your public-facing website's security posture. Rather than simulating complex attack chains against authenticated workflows, it targets the external attack surface that any attacker can see: what is exposed, what is misconfigured, and what could be exploited or abused.

This service is designed for organisations that want credible, independent assurance that their website does not present unnecessary risk, but do not have the need for a full web application penetration test. It's ideal for corporate websites, CMS-driven sites, and brochureware that may be overlooked from a security perspective.

Who This Is For

Is website security testing right for you?

If your site is primarily informational, CMS-driven, or used for marketing and lead generation, this is the right starting point.

Get a Website Pentest

Corporate and brochureware websites

Company websites presenting services, products, and contact information are often overlooked from a security perspective. Outdated CMS versions, exposed admin panels, and weak headers are common targets for attackers.

Marketing and landing page sites

Marketing sites frequently change hands between agencies, accumulate plugins and third-party scripts, and are updated without security review. Each change can introduce new risk that goes undetected.

WordPress and CMS-based websites

CMS platforms like WordPress, Drupal, and Joomla are commonly targeted. Plugin vulnerabilities, theme weaknesses, and default configurations are routinely exploited by automated and targeted attacks.

Agency-managed client websites

Agencies managing websites on behalf of clients often lack the in-house capability to perform independent security assessments.

Sites with basic forms and contact functionality

Contact forms, quote request forms, and newsletter sign-ups introduce input handling and potential data exposure risks that warrant review, even on simple websites.

Organisations preparing for compliance or client assurance

Demonstrating that your public website has been independently assessed strengthens supplier questionnaires, ISO 27001 evidence packs, and client due diligence responses.

Important Distinction

When you need more than a website assessment

Website security testing is scoped to your public-facing website attack surface. It is not a substitute for a full web application penetration test and is not appropriate for every environment.

If your site includes any of the following, you likely need a full web application penetration test instead:

  • Customer portals or dashboards with authenticated user sessions
  • SaaS platforms with user accounts and business logic
  • Payment flows or checkout processes handling financial transactions
  • APIs powering mobile applications or third-party integrations
  • Multiple user roles with privilege separation
  • Applications processing personal, financial, or sensitive data through complex workflows

For these environments, see our Web Application Penetration Testing service, which is specifically designed for complex, custom, and authenticated applications.

Pricing

From £750

for website security testing

Scope is based on the size and complexity of your site, not the number of pages. A 30-minute scoping call is free and gets you a fixed written quote.

Book scoping call Request a quote

No obligation · Strictly confidential · Quote within one business day

Pricing Examples

Static or simple brochureware site£750 - £1,100
CMS site (WordPress, Drupal, Joomla)£1,100 - £1,600
CMS with multiple plugins, forms, or third-party integrations£1,600 - £2,200
Multi-site or larger CMS deployments£2,200+
Indicative ranges only. Your exact price is confirmed after a short scoping conversation - see full service pricing. For sites with logins, user accounts, or complex functionality, see our Web Application Penetration Testing service.

What's Included

  • Fixed-price proposal within one business day
  • Manual, consultant-led testing. Not automated scans
  • Report within 2 business days of testing completion
  • Free focused retesting included to verify remediation
  • No obligation quote, all enquiries are fully confidential

What We Test

What does a website security assessment cover?

Our website security testing is focused on the external, publicly accessible attack surface of your site. Testing is manual, consultant-led, and targeted at real-world risks rather than automated scan output.
01

CMS, Plugin, and Theme Exposure

Identification of outdated CMS versions, vulnerable plugins, and insecure themes that are known to be exploited.
02

TLS and SSL Configuration

Assessment of your certificate configuration, cipher suite strength, protocol versions, HSTS settings, and mixed content issues that could undermine secure connections.
03

Security Headers

Review of HTTP security headers, including Content Security Policy, X-Frame-Options, Referrer-Policy, and Permissions-Policy. Missing or misconfigured headers are a common finding.
04

Exposed Admin and Login Panels

Discovery and assessment of publicly accessible administrative interfaces, login pages, and management portals that should be restricted or protected.
05

Contact Forms and Input Handling

Review of how contact forms, search fields, and other inputs handle user-supplied data, including email header injection, basic XSS, and spam abuse potential.
06

Directory Listing and Exposed Files

Identification of directories with open listing enabled, backup files, configuration files, and other artefacts that are unintentionally accessible to the public.
07

Known Vulnerable Components

Detection of JavaScript libraries, server software, and third-party components with known vulnerabilities (CVEs) that are visible from the public attack surface.
08

Hosting and Deployment Indicators

Externally visible server configuration details, version banners, cloud provider metadata exposure, and deployment artefacts that provide useful reconnaissance information to attackers.
09

Public Attack Surface Enumeration

Discovery of subdomains, exposed services, and publicly accessible resources associated with your domain that fall within the agreed scope of assessment.
10

Sensitive Information Disclosure

Identification of internal paths, credentials, API keys, or configuration data inadvertently exposed in page source, JavaScript files, robots.txt, or accessible endpoints.

Key Deliverables

What's included in the assessment?

Every website security assessment provides a full assessment report, prioritised findings, and free retesting to confirm remediation.

Executive Summary

A clear, non-technical overview of findings with risk ratings and prioritised recommendations, suitable for business owners, marketing leads, or senior management.

Technical Report

A detailed report of each finding with evidence, reproduction steps, risk scoring, and specific remediation guidance tailored to your CMS or platform.

Prioritised Remediation Guidance

Findings are presented in priority order so your team or agency can address the most impactful issues first without needing to interpret severity scores.

Free Retesting

Complimentary focused retesting of any remediated vulnerabilities to confirm that identified issues have been properly resolved.

Debrief Session

An optional debrief call to walk through findings and answer questions - useful when handing findings back to an agency or development team.

Consultant-led Testing

All testing is performed by in-house consultants. Nothing is outsourced or subcontracted. Your consultant works with you from scoping through to report delivery.

Common Questions

Website security testing - frequently asked questions

Website security testing is scoped to the publicly accessible, largely unauthenticated attack surface of a business website (such as a corporate site, CMS-driven platform, or brochureware site).

Web application penetration testing goes further and covers authenticated workflows, user sessions, business logic, APIs, and role-based access controls. If your site has logins, customer accounts, payment flows, or complex functionality, you need a web application penetration test rather than a website security assessment.

Most website security assessments take 1-2 days depending on the size and complexity of the site or if there are multiple sites in-scope for testing. Reports are delivered within 2 business days of testing completion.

Yes. WordPress is the most widely deployed CMS and one of the most targeted platforms on the internet. Our assessment covers WordPress core version exposure, plugin and theme vulnerabilities, wp-admin exposure, XML-RPC abuse potential, user enumeration, and common misconfigurations. The same depth applies to other CMS platforms.

Yes. Many of our website security assessments are commissioned by organisations whose sites are managed by a third-party agency.

Prior to testing, we will discuss the scope of the assessment and provide a written proposal. We can work with your agency to coordinate testing and remediation, or you can choose to manage that process internally.

Website security testing is designed to be non-disruptive. We do not perform denial-of-service testing or actions that would degrade availability. Where any test could potentially affect a site's behaviour, we discuss this with you in advance. Testing can be scheduled outside business hours if preferred.

We use automated tooling to assist with discovery and enumeration, but testing is entirely consultant-led. Every finding is manually validated before it appears in your report. We do not deliver raw scanner output or unvalidated vulnerability lists.

The testing target scope is agreed during the scoping call, and as part of the engagement planning process. Subdomain enumeration and testing of associated subdomains can be included within scope. If you have a known set of subdomains you want assessed, bring them to the scoping conversation and we will factor them into the proposal.

An independent website security assessment provides documented evidence of third-party security review, which is useful for ISO 27001 evidence packs, supplier due diligence questionnaires, Cyber Essentials preparation, and internal governance requirements.

Annual testing is a sensible baseline, but we also recommend re-testing after any significant updates, CMS migrations, plugin additions, or redesigns as each change can introduce potential risk. Organisations with higher risk profiles or compliance obligations may benefit from more frequent assessments.

Ready to assess your website's security?

Get a fixed-price quote within 24 hours. Tell us about your site and we'll provide a tailored proposal.

Request a Quote Speak With Our Team