Effortless E-commerce Security

Protect Your Store from Web Skimming in Under 5 Minutes

Plug-and-play AI-powered security for eCommerce sites.
No demos. No sales calls. Just instant threat detection and clear pricing.

Start Protecting Your Store

    • Your Website Could Be Vulnerable Right Now

    Watch Your Third-Party Scripts

    Third-party scripts power your store — from payment systems to chat to analytics. But they’re also prime targets for attackers.

    Catch Magecart Attacks Before They Strike

    Web skimming attacks silently steal customer card data using compromised scripts. You may never notice – but your customers will.

    Understand the Real Risks

    A single breach can mean fines, lost revenue and damage to your brand. PCI DSS v4 (2025) now mandates script monitoring.

    Want to learn more about Magecart-style threats? Find out more

    Real Protection, Real Fast

    Detect and Stop Web-Skimming Attacks in Minutes

    CartShark continuously monitors your website for suspicious activity, even during live customer sessions. No setup headaches, no slowdowns, no guesswork.

    Stop Threats Instantly

    Live monitoring spots and flags new suspicious scripts in real time.

    Smart Checkout Simulations

    We mimic real users to detect hidden malware where it matters most.

    Always Updated Threat Database

    You’re protected by the latest AI-enhanced intelligence on known attack vectors and bad actors.

    PCI DSS 4.0 Ready

    Stay compliant with the latest security standards — effortlessly.

    Multiple Layers of Protection, One Lightweight Tool

    One Platform, Total Visibility

    CartShark protects your storefront with a multi-pronged defence strategy.

    Automated Checkout Monitoring

    Simulates real customer behaviour across your checkout flow.

    Builds a baseline and flags anything suspicious — instantly.

    Proactively spot hidden vulnerabilities and uncover malicious web-skimming scripts.

    Live User Monitoring

    Catch unauthorised scripts lurking beneath the surface by analysing real customer interactions.

    Gain actionable insights, identify unusual patterns and nip potential threats in the bud before they cause damage.

    If a malicious destination is added to your website, CartShark will alert you.

    Third Party Tag Management

    Automatically tracks and categorises all third-party scripts on your site.

    Spot risky vendors before they become a liability.

    Don’t let your site become a feeding frenzy for attackers.

    Built for Ecommerce Teams Who Don’t Have Time to Waste

    Why CartShark?

    We’re not another enterprise security tool wrapped in jargon and locked behind a sales funnel. CartShark is fast, fair, and purpose-built for busy online retailers.

    We believe in open pricing

    You’ll never have to book a demo to get a number.

    We’re built for eCommerce, not everyone

    We’re focused on what matters most — protecting your checkout, your customers, and your reputation.

    We don’t make you wait

    CartShark is truly plug-and-play. No lengthy onboarding, no need to “talk to sales.”

    We don’t just alert you — we explain

    Every alert comes with context, so you can take action fast.

    “The tool provides full visibility of all data sources across each of our websites – a problem we previously needed to solve.“

    Caleb Whittington / Security Engineer, Kurt Geiger

    FAQs

    The Answers to Your Questions

    RapidSpike delivers enterprise-grade website and cybersecurity monitoring, and has been trusted by global brands for over a decade. In 2018, we pioneered advanced technology to detect “Magecart” web skimming attacks — a breakthrough that earned recognition at both the European and Global Ecommerce Awards. In 2024, we secured the prestigious InnovateUK Smart Grant to accelerate development of this technology, which we have launched in 2025 as CartShark. Today, we monitor over $40 billion in ecommerce transactions annually, providing critical protection for some of the world’s leading online businesses

    Yes — all plans come with a 7-day free trial. You can try CartShark Lite or Plus with no upfront charges. You’ll need to enter your card details during sign-up, but you won’t be charged until after your first full month of usage

    Nope. We believe in clear, accessible pricing. You can sign up and get started without a demo — but if you’d like to see CartShark in action first, we’re happy to schedule one. Otherwise, just sign up, install the tracker, and you’re good to go — all in less than 5 minutes.

    No — you can cancel at any time during the trial period, and you won’t be billed. If you continue using the platform after the 7-day trial, billing begins at the end of your first month, based on your usage.

    Our pricing is usage-based, so you only pay for what you use. We count how many pageviews our tracker records on your website and assign that number to a bucket (e.g., 0–50,000, 50,000–100,000, etc.). Each bucket has a corresponding monthly rate. If you’re on the Plus plan, there’s also a charge for each active ScriptSentinel monitor, which are powerful synthetic scripts used to actively test your site.

    Lite: Tracks your website for webskimming threats and third party resources, using our lightweight visitor-based tracker.

    Plus: Includes everything in Lite, plus automated ScriptSentinel monitoring, which simulates user journeys like checkout flows for deeper security insights and a comprehensive view of your third parties and how they impact your customers.

    It’s an automated browser that simulates real customer checkouts — essential for catching hidden, time-triggered scripts that standard monitoring can miss. It also gives us a deep-dive into the performance of your third parties, so you can see more clearly into your true site experience.

    Just copy and paste a small script onto your website — it only takes a minute. The tracker has minimal performance impact and does not collect any personal or demographic data from your site’s visitors.

    Absolutely. All payments are processed securely through Stripe, a trusted industry standard for payment processing.

    Complete Protection for Your eCommerce Business

    • Detect New and Emerging Threats with AI
      Catch new malicious scripts before they cause harm.
    • Stay PCI DSS v4 Compliant
      Protect customer card data and avoid penalties.
    • Minimise Revenue Loss
      Prevent attacks that disrupt checkout flows.
    • Real-Time Alerts
      Get instant alerts via WhatsApp, PagerDuty, and more.
    • No Complex Setup Required
      A true plug-and-play solution.
    Start a 7 Day Free Trial Today