Web Skimming
Security –
From Just £9.95

Protect your checkout from the #1 cyber threat to ecommerce: web-skimming attacks.

CartShark monitors your site in real time, helping to support PCI DSS 4.0 compliancy without the complexity.

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Trusted by global names, built for growing brands

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Over a decade of trust from some of the world’s biggest brands

European Ecommerce Awards Winner 2023

European eCommerce Awards: Software of the Year

Global eCommerce Awards: Software of the Year

5 minute setup time
Effortlessly Quick Set-Up

Create your account and add the lightweight tracker to your website — no complex setup, no dev time required.

AI-Enhanced monitoring
Full & Real Visibility of Risk

See exactly which third-party scripts are running, where you’re exposed, and whether they pose a threat with our AI-enhanced threat database.

CartShark Endpoints Dashboard
CartShark PCI Dashboard
PCI DSS v4 6.4.3
PCI DSS 4.0 Compliance Support

CartShark helps you meet new PCI DSS 4.0 standards giving you a comprehensive list of all scripts running from your website.

Try Today

Powerful and essential webskimming detection for small to medium stores. Try totally free for 7 days, cancel at any time.

  • Detect new and emerging webskimming threats
  • Supports PCI DSS v4 compliance
  • Rapid setup - start monitoring within 3 minutes

Lite Plan

from $0.00
/month
If you exceed your pageview allowance, we’ll move you up to the next bracket. You can put limits in place if required.
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Enhance Your Security With

Supercharged eCommerce security monitoring, deep-dive insights into third-party tags and much more.

  • Third Party performance monitoring
  • Comprehensive website security tools
  • Personalised support & managed onboarding

Plus Plan

from $0.00
/month
CartShark Plus is billed based on your monthly pageviews, plus each ScriptSentinel monitor you have configured.
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Simple, Transparent Pricing

No Sales Calls, No Surprises – Just Clear, Fair Pricing

Built for Shopify, WooCommerce and growing brands. Our plans are designed to be clear, flexible, and easy to understand — no hidden fees, no need to talk to sales.

  • Instant setup (just add a snippet)
  • Cancel anytime during your trial
  • Only pay after your first full month

“CartShark solves a critical issue for us: providing full visibility of all data sources across each of our websites.”

– Caleb Whittington,
Security Engineer at Kurt Geiger

400,000+

security checks per week

60 seconds

for issues to be flagged

1,000,000+

hosts reviewed

Get Started – Fast Setup, Full Protection

Enterprise-level security tools for a fraction of the price.

Instant access

Setup takes moments, not weeks

No commitment

Try totally free for 7 days

Immediate protection

Get visibility in under 5 minutes

FAQs

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 once the trial has ended, based on your projected usage for the month.

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.

This is for CartShark Plus customers only – 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.

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