“We needed to find solutions to a variety of issues whilst being a complex business, operating in a 24/7 environment. Stripe OLT listened and understood immediately the challenges we faced.”

IT Operations Manager
Simon Darley
Trusted by industry leaders

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Call us on one of the numbers below, we cover the whole of the UK, so call the nearest office.

BriSTOL HQ & The South West

London & Surrounding Areas

Manchester & the North

“We needed to find solutions to a variety of issues whilst being a complex business, operating in a 24/7 environment. Stripe OLT listened and understood immediately the challenges we faced.”

IT Operations Manager
Simon Darley
Trusted by industry leaders

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“We needed to find solutions to a variety of issues whilst being a complex business, operating in a 24/7 environment. Stripe OLT listened and understood immediately the challenges we faced.”

IT Operations Manager
Simon Darley
Trusted by industry leaders

Request a Call

First we need a few details.

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certified Web App Penetration testing services

Opt for a Certified CREST Pen Test Partner to Secure Your Web Applications and Safeguard Your Digital Presence.

What is Web App Penetration Testing?

Web App Penetration Testing, commonly referred to as web app pen testing, is a targeted assessment of the security of web-based applications. By simulating cyberattacks, this process uncovers vulnerabilities and weaknesses within web apps, especially focusing on areas like user authentication, data handling, and server-side security.

This testing evaluates key aspects such as cross-site scripting, SQL injection vulnerabilities, and other common web application threats. The ultimate aim is to equip organizations with critical insights for reinforcing their web app security, thereby enhancing resilience against a diverse range of cyber threats that target web applications.

What Are the Benefits of Web App Penetration Testing?

Identifying and addressing vulnerabilities in web applications enhances security and protects against breaches.
Uncovering specific security weaknesses unique to web applications, such as insecure data handling.
Ensuring compliance with industry security standards reduces legal and financial risks.
Enhancing overall performance and user experience by addressing security-related issues in web apps.
Staying ahead of evolving cyber threats with comprehensive testing strengthens the web app environment.
Providing detailed, actionable feedback for continuous improvement in web application security.
Demonstrating commitment to web application security improves user trust and confidence.
Facilitating informed decision-making by offering a clear understanding of the security landscape of web applications.

highly certified security analysts

CREST –  the Council of Registered Ethical Security Testers – is an international accreditation and certification body, representing and supporting the best of the technical information security industry. 

Web App Penetration Testing MethodologyTHE STRIPE OLT PROVEN PROCESS 


Reconnaissance & Information Gathering

We start by gathering comprehensive information about your web applications, focusing on architecture, functionality, and existing security measures.


Our team employs advanced tools to scan your web applications, enumerating services and pinpointing potential vulnerabilities for in-depth analysis.


We simulate real-world cyberattacks to access and exploit identified vulnerabilities, assessing how they could impact your web application’s security.


This phase involves exploring the extent of the breach and the duration for which unauthorized access can be maintained, highlighting the depth of the security issues.


After completing the testing, we ensure all web applications are returned to their original state. A detailed report is provided, outlining our findings and offering actionable recommendations for security enhancements.

Elevate Your Cybersecurity Game

Contact Us Today to Fortify Your Web Applications with Expert Pen Testing.

Why choose stripe olt Web App Penetration testing SErvices?

Industry leaders have been using Stripe OLT for the last 18 years. The reason major brands trust us is….

Crest Certified

Our team comprises CREST-certified professionals, ensuring the highest standards of ethical conduct and technical expertise in conducting thorough penetration tests.

Customised Testing Approach

We tailor our penetration testing services to your specific needs, ensuring a focused approach that addresses the unique challenges and vulnerabilities of your digital infrastructure.

Comprehensive Reporting and Support

Post-testing, we provide detailed reports with actionable insights in a language all stakeholders can understand and offer ongoing support to help you implement the recommended security measures effectively.

Proven Track Record

With years of experience and a portfolio of satisfied clients, our proven track record in delivering high-quality penetration testing services speaks for itself.

How we’ve helped our clients

  • geo
    Web Application, Internal and External Penetration Test
    Our client, geo, understood that to assess their resilience against cyber threats accurately and effectively, a pro-active cyber security assessment needed to be conducted. Recognising the importance of specialist support to protect its enterprise from cyber attacks, and  decided to turn to our CREST certified penetration testers for the insights they needed.
  • Coller Capital
    Web App Penetration Test
    As a global innovator in the private assets secondary market, Coller Capital’s key challenge was identifying vulnerabilities in their digital assets. To address this, they opted for an external Web App Penetration Test to fortify their cyber defenses.

Types Of Penetration Testing

Beyond web app security, Stripe OLT offers a range of targeted penetration testing services to safeguard every aspect of your digital landscape.


Secure your mobile applications against emerging threats with comprehensive testing that covers both iOS and Android platforms.


Safeguard your network against intrusions and attacks with rigorous testing that examines both internal and external threats.


Strengthen cloud security with targeted penetration testing to identify and mitigate vulnerabilities in cloud services and applications


Ensure the security of your physical and virtual infrastructure with detailed assessments that uncover potential weaknesses.


Defend your wireless networks from unauthorised access and eavesdropping with targeted testing that strengthens your wireless security protocols.

Web App Penetration Testing FAQs

How often should web app penetration testing be conducted?

Regular testing is recommended, ideally annually or after significant updates to your web applications, to maintain consistent security and compliance.

What distinguishes web app penetration testing from traditional penetration testing?

Web app penetration testing specifically focuses on vulnerabilities and security challenges unique to web-based applications, addressing concerns like SQL injection, cross-site scripting, and session hijacking.

What are the costs typically associated with web app penetration testing?

The cost of penetration testing in the UK can vary depending on several factors, including the scope of the test, the complexity of the systems being tested and the duration of the engagement.

If you’re looking to understand how much your organisation may need to invest in a cloud penetration test, please get in touch with our team.

Can web app penetration testing disrupt normal business operations?

The testing process is designed to minimize disruption. We work closely with clients to schedule tests during low-activity periods and ensure a smooth and unobtrusive process.

What types of vulnerabilities does web app penetration testing typically uncover?

Common findings include issues with input validation, improper handling of user sessions, insecure direct object references, and vulnerabilities within third-party components.

How does web app penetration testing help in regulatory compliance?

Regular testing of web applications ensures adherence to GDPR, ISO/IEC 27001, NIS Regulations, PCI DSS, FCA Regulations and a whole host of others, helping organizations avoid non-compliance penalties.

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