What teams use script monitoring for
One tag, one inventory, and two PCI requirements satisfied from the same evidence. These are the jobs it is bought to do.
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01 · PCI DSS 4.0.1
The two client-side requirements
Mandatory since 31 March 2025. They are assessed as two separate controls with two separate pieces of evidence.
02 · Attack protection
The attacks these requirements exist to stop
Magecart protection
Detect and block the card skimmers that read your checkout form in the visitor's browser.
Web skimming and e-skimming
One attack, several names. How the card data leaves and what detects it.
Third-party script monitoring
Every vendor, and every vendor's vendor, with the load chain that explains how they got there.
Client-side security
The layer your WAF, SIEM and EDR cannot see, and where each control stops.
JavaScript monitoring
The security sense of the term: whose script this is and what it is doing.
03 · By industry
Where the checkout is the business
Ecommerce
Checkout and cart integrity, and every page that embeds a payment iframe.
Payment providers
Compliance you can extend to the merchants on your platform.
Airlines and transit
Long booking flows, high-value tickets, heavy third-party tagging.
Hospitality
Many properties, many booking engines, one compliance scope.
Healthcare
Payment pages that also carry PHI, where a leaking script is two problems.
iGaming
Deposit flows, affiliate tagging, and regulators who ask specific questions.
SaaS and software
Billing and upgrade routes inside the product, which is the page nobody scopes.
Insurance
Quote and buy, renewal, instalments, and broker portals on their own domains.
Ticketing and events
Onsale spikes, promoter tags, and the breach that made this a board subject.
AI startups
Self-serve billing shipped fast, and enterprise security reviews arriving early.
Higher education
Every department with its own payment page, one central team holding the SAQ.
Nonprofits
Donation pages carry more tracking code than most checkouts.
Start with the scripts already on your checkout.
Install the tag, mark your payment pages, and watch the inventory fill in. Free forever on 1,000 page views a month, no credit card.
Free forever plan. No credit card.