Alternatives to Cloudflare Page Shield for protecting the payment page (2026)
By Laís Peixoto
Growth Marketer, Proteside
Published
Teams looking past Page Shield, now Client-Side Security, find three families: modules from other edge platforms (Akamai Client-Side Protection & Compliance, Imperva Client-Side Protection), script agents on the page (Feroot, c/side) and external monitors (Reflectiz). Proteside takes a fourth route: it checks the payment itself, behind any CDN. Start from what your checkout accepts and where your traffic flows.
Why teams evaluate other options
The site is not behind Cloudflare
The documentation requires traffic proxied through Cloudflare. Operations on another CDN, with their own proxy, or with stores spread across several platforms need something that enters through the page.
The checkout takes more than cards
UPI, PromptPay, PayNow, stablecoins and bank slips have no form to watch. Web skimming here means swapping the beneficiary on screen, and catching that means checking what the buyer sees and copies.
Every session, not a sample
When the inventory comes from a sample of responses and blocking depends on rules in the advanced package, teams want to know what happens to the buyers outside the sample.
The short list
| Option | How it works | Makes sense for | Comparison |
|---|---|---|---|
| Proteside | A script on the payment page checks every QR code, payment key, bank slip line, wallet address and card field against what your server issued, and blocks the swap before confirmation. | Merchants paid through instant rails such as UPI, PromptPay, PayNow or Pix, by card, by bank slip or in stablecoins, who need protection and PCI DSS evidence from a single install. | Cloudflare Page Shield vs Proteside |
| Akamai Client-Side Protection & Compliance (antes Page Integrity Manager) | Akamai's edge injects a detection script at the top of the page (or it is placed at the origin), analyzes script behavior and lets you restrict a malicious script with one click in the console. | Large operations on Akamai that want network threat intelligence and script inventory managed in the same console. | Akamai Client-Side Protection vs Proteside |
| Imperva Client-Side Protection | Delivered through Imperva Cloud Application Security, it sets CSP policies on the server that the browser enforces: new services stay blocked until authorized, with a compliance dashboard per payment path. | Companies already on the Imperva WAF that want script control under the same contract, with no code to add. | Imperva Client-Side Protection vs Proteside |
| Feroot PaymentGuard e DXSecure | Inventories the scripts on payment pages, records justifications and integrity, and alerts on changes to content and headers; runtime policy enforcement is described as optional. | Card-centric operations that need script governance across websites and mobile apps, with a report for the assessor. | Feroot vs Proteside |
| c/side Script Security | A snippet on the page watches third-party scripts in real sessions, keeps a history of what each script loaded and blocks by combining CSP with its own rules, with no reverse proxy and no DNS change. | Teams that want detailed visibility into the behavior of every third-party script, with compliance dashboards and alerts in chat tools. | c/side vs Proteside |
| Reflectiz PCI Module | An automated browser visits payment pages from outside, on a schedule, with no code on the site; blocking, when triggered in the interface, injects a CSP policy that excludes a domain. | Teams that cannot or prefer not to place a script on the page and accept detection with human review. | Reflectiz vs Proteside |
Choose the category before the vendor
Pick the family before the name. Edge modules, such as Cloudflare's, Akamai's and Imperva's, use the proxy to observe or enforce a policy and make the most sense for sites already on that platform. Page agents enter as a script and follow each buyer. External monitors visit the page from outside, with no code on the site, and so never see a real session. All three families look at scripts and address requirements 6.4.3 and 11.6.1, each in its own way.
None of them, as far as the public documentation describes, compares the QR code, wallet address or bank slip line on screen with what the merchant issued. That is Proteside's check: integrity at the moment of payment, behind any CDN, with the script inventory included in the same install.
The options in detail
Proteside
Proteside records what is legitimate on each payment page (the details of each charge, the form fields, the authorized scripts) and continuously verifies, in the payer's browser, what is displayed, what is copied and where the data goes. When it detects a mismatch, it stops the action before the payment is confirmed and logs the attempt.
The script inventory and the change history form the evidence for PCI DSS requirements 6.4.3 and 11.6.1. Installation is one line of code on any e-commerce platform, or a single integration for platforms and payment providers, with a dashboard, API and alerts.
Proteside is the right choice when: Choose Proteside when your checkout is paid through instant rails, bank slips or stablecoins as well as cards, when you need the payee swap blocked in real sessions, or when you want protection and PCI DSS evidence without changing your CDN.
Akamai Client-Side Protection & Compliance (antes Page Integrity Manager)
Client-Side Protection & Compliance (formerly Page Integrity Manager) inventories scripts, applies justifications and rules, monitors headers for requirement 11.6.1 and alerts on unauthorized scripts, payment data exfiltration and tampering. Public documentation says detections work for any site, wherever it is hosted, with configuration in the Akamai console.
Script injection can be set to a percentage of page views, and mitigation is described as a restriction applied with one click. For full coverage, injection has to run on every page view. The material covers scripts and card data; it does not address QR codes, payment keys or bank slip lines.
Akamai Client-Side Protection is the right choice when: your operation already runs on Akamai, your security team operates the console and human-approved mitigation fits your process.
Imperva Client-Side Protection
Imperva (Thales) describes Client-Side Protection as a component of its application protection: continuous service discovery, AI-based script analysis, one-click blocking, header change monitoring, weekly summaries of payment page changes and exportable reports for the assessor, with Terraform support.
The mechanism is a content security policy defined on the server under a zero-trust model: whatever is not authorized does not load. Public documentation describes delivery through Imperva Cloud Application Security; the scope is scripts and card data.
Imperva Client-Side Protection is the right choice when: your site is already on Imperva Cloud Application Security and you want script policy managed by the same team that runs the WAF.
Full comparison: Imperva Client-Side Protection vs Proteside
Feroot PaymentGuard e DXSecure
Feroot centers its offer on compliance: PaymentGuard covers requirements 6.4.3 and 11.6.1 with script inventory, justifications, integrity checks and an evidence report for the QSA. Public documentation cites integrations with alerting and operations tools, and coverage of iOS and Android apps alongside websites.
The point to watch for anyone paid outside cards is scope: the public material speaks of scripts and card data, with no mention of QR codes, payment keys, boleto (Brazilian bank slip) or crypto wallets. For those payment methods, a payee swap sits outside what the tool describes checking.
Feroot is the right choice when: your priority is script governance and PCI DSS evidence across websites and mobile apps, and your checkout is paid mostly by card.
c/side Script Security
c/side defines itself as a client-side security platform. Public material describes an inventory with the content history of each script, a vendor graph, alerts, dashboards for requirements 6.4.3 and 11.6.1 and an endpoint for receiving CSP reports.
Its public page on crypto cites the swap of a wallet address copied to the clipboard, which brings it close to the problem Proteside solves. Pix, boleto (Brazilian bank slip) and the QR codes of instant payment rails such as UPI or PromptPay do not appear in the public documentation we consulted.
c/side is the right choice when: you want the detail of each third-party script's behavior and a crypto address swap is already your main concern outside cards.
Reflectiz PCI Module
Reflectiz describes its own approach as agentless: a sandboxed browser simulates the user journey, inventories scripts (including inside iframes), monitors headers for requirement 11.6.1 and exports evidence for the QSA. The platform also covers privacy and offensive testing.
The vendor's own material explains blocking as a script that stays inactive on the page until triggered in the interface, when it starts excluding a domain through CSP. It is a design choice: detection first, human intervention second. Scams that appear only to one specific buyer are not observed by simulated visits.
Reflectiz is the right choice when: your internal policy forbids adding scripts to the payment page and your security team reviews alerts before acting.
How to evaluate an alternative
- 1Where does your traffic flow? If the site is not proxied through Cloudflare, edge modules only work after a migration.
- 2Which payment methods does the page show? With UPI, PromptPay, PayNow, stablecoins or Pix, the tool has to check that data, not only the scripts.
- 3Does the inventory cover every session or a sample, and how long does a new script take to appear?
- 4Who blocks, and when? Rules a person has to write and maintain, or automatic blocking before the payment is confirmed?
- 5What will the assessor receive? Inventory, authorisations and change history should come out ready for the PCI DSS assessment.
Frequently asked questions
What is the best alternative to Cloudflare Page Shield?
It depends on where your traffic runs and what the checkout accepts. For sites on Akamai or Imperva, those platforms' modules cover the same ground. For script governance behind any CDN, Feroot and c/side. For UPI, PromptPay, PayNow, stablecoins, Pix and boleto, the payment check only appears in Proteside's public documentation.
What does an alternative to Cloudflare Page Shield need to cover?
Script inventory and authorisation, detection of changes to the page and its headers, and evidence for the assessor, across every session and without depending on one CDN. If the checkout goes beyond cards, add the beneficiary check.
Who are Cloudflare Page Shield's competitors?
Among edge modules, Akamai Client-Side Protection & Compliance, Imperva Client-Side Protection and F5 Client-Side Defense. Among page agents, Feroot, c/side, Jscrambler, Source Defense and HUMAN Security. Among external monitors, Reflectiz and SecurityMetrics. Proteside compares itself with all of them on these pages.
Does Proteside replace Cloudflare Page Shield?
It depends on the job. On the payment page, Proteside covers the script inventory, requirements 6.4.3 and 11.6.1 and the payment check, behind any CDN. The domain-wide inventory of scripts, connections and cookies from the proxy remains Client-Side Security's role. Many customers keep both.
All guides
- Feroot alternatives
- c/side alternatives
- Jscrambler alternatives
- Source Defense alternatives
- HUMAN Security alternatives
- Reflectiz alternatives
- SecurityMetrics alternatives
- Akamai Client-Side Protection alternatives
- Imperva Client-Side Protection alternatives
- F5 Client-Side Defense alternatives
- All comparisons
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