Compare Proteside with other payment page security tools
This page brings together eleven tools that protect the payment page or produce evidence for PCI DSS requirements 6.4.3 and 11.6.1, compared with Proteside across thirteen criteria. Every mark comes from each vendor's public website and documentation, with the date we checked it. The difference that matters shows up in the table itself: Proteside checks the payment, on top of the scripts.
Four approaches, one shared blind spot
Tools in this market fall into three families: those that place an agent on the page to inventory and control scripts, those that monitor the page from outside with simulated visits, and those that use the CDN or WAF to enforce a security policy from the proxy. All of them look at the scripts. Proteside looks at what the buyer sees and copies: the QR code, the payment key, the bank slip line, the wallet address.
| Script agent | External monitor | Edge CSP | Proteside | |
|---|---|---|---|---|
| Watches real buyer sessionsA scam shown to one specific customer never appears in a simulated visit. | Described in public documentation | The vendor states it does not do this | Described with a limitation (optional, sampled, requires human action or only in one product tier) | Described in public documentation |
| Blocks without waiting for a person to approveA payment is confirmed in seconds; the block has to land before that. | Described with a limitation (optional, sampled, requires human action or only in one product tier) | The vendor states it does not do this | Described with a limitation (optional, sampled, requires human action or only in one product tier) | Described in public documentation |
| Checks QR codes, payment keys, bank slip lines and wallet addressesSwapping the payee needs no malicious script: a browser extension or a compromised plugin is enough. | Not found in public information | Not found in public information | Not found in public information | Described in public documentation |
| Covers Pix, boleto (Brazilian bank slip) and instant payment rails worldwideOutside cards there is no form to watch; there is a code that has to be verified. | Not found in public information | Not found in public information | Not found in public information | Described in public documentation |
| Evidence for PCI DSS requirement 6.4.3Inventory, authorization and integrity of every script on the payment page. | Described in public documentation | Described in public documentation | Described with a limitation (optional, sampled, requires human action or only in one product tier) | Described in public documentation |
| Evidence for PCI DSS requirement 11.6.1Detection of unauthorized changes to the page and its headers. | Described in public documentation | Described in public documentation | Described with a limitation (optional, sampled, requires human action or only in one product tier) | Described in public documentation |
| Works without changing CDN, DNS or proxyOperations on their own CDN, or on another vendor's, do not need to migrate. | Described in public documentation | Described in public documentation | The vendor states it does not do this | Described in public documentation |
- Described in public documentation
- Described with a limitation (optional, sampled, requires human action or only in one product tier)
- Not found in public information
- The vendor states it does not do this
Marks by tool family, based on what the public documentation of each vendor in the family describes. Vendor-level detail in the comparisons.
Specialists with an agent on the page
Place a script on the payment page to inventory, authorize and, in most cases, block third-party scripts in real sessions.
- Agent on the page
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.
Proteside: Verification of the QR code, payment key, bank slip line and wallet address against what your server issued, blocked before confirmation.
- Agent on the page
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.
Proteside: Verification of Pix, bank slips and instant payment rails, which c/side's public material does not describe, plus a payee check against what your server issued.
- Agent on the page
Jscrambler Webpage Integrity
A JavaScript agent, or synthetic-user monitoring, inventories scripts, detects behavioral drift and enforces blocking and form protection policies; a module covers requirements 6.4.3 and 11.6.1.
Proteside: Verification of the payment itself (QR code, key, bank slip line, wallet address) and coverage of Pix and instant payment rails, which the public Webpage Integrity documentation does not mention.
- Agent on the page
Source Defense Protect e Detect
Two lines of code treat third-party scripts as untrusted by default, with real-time blocking in the prevention product and monitoring in the detection product; a version is distributed through acquirers.
Proteside: Payee verification for Pix, bank slips, crypto and instant payment rails, plus evidence for requirement 11.6.1, which the public product pages do not cite.
- Agent on the page
HUMAN Client-Side Defense
One line of JavaScript, the HUMAN sensor, watches scripts in real sessions and blocks risky actions granularly, such as access to a single form field, without disabling the whole script.
Proteside: Verification of the QR code, payment key, bank slip line and wallet address against what your server issued, beyond the card form.
External monitoring
Visit the page from outside, on a schedule, with an automated browser. No code on the site; no view of each individual buyer.
- External monitor
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.
Proteside: Observation of every real session and automatic blocking of a swapped QR code, key, bank slip line or address before confirmation.
- External monitor
SecurityMetrics Shopping Cart Monitor
Scans the payment page from outside, at intervals, simulating the checkout, and alerts on new scripts and changes; the company itself describes the product as a detection tool and says it was not built to prevent.
Proteside: Blocking in the buyer's browser, in real sessions, plus payment verification for Pix, bank slips, crypto and instant payment rails.
CDN and WAF modules
Features of edge platforms that inject a script or enforce a CSP policy from the proxy. They make the most sense for teams already on that platform.
- CDN module
Cloudflare Client-Side Security (antes Page Shield)
From the proxy, Cloudflare adds a report-only CSP header to a sample of pages and builds the inventory from browser reports; blocking happens through allow rules in the advanced tier.
Proteside: Payment verification in real sessions, without sampling, with automatic blocking of a swapped QR code, key, bank slip line or address.
- CDN module
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.
Proteside: Automatic payee verification for Pix, bank slips, crypto and instant payment rails, blocked without waiting for someone's click.
- WAF module
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.
Proteside: Payment verification for Pix, bank slips, crypto and instant payment rails, with no need to sit behind the Imperva WAF.
- WAF module
F5 Distributed Cloud Client-Side Defense
A script inserted by the F5 Distributed Cloud load balancer, or placed by hand in the CMS, CDN or BIG-IP, lists scripts and alerts on suspicious domains and reads of sensitive fields; mitigation is user-defined through lists.
Proteside: Automatic blocking and payee verification for Pix, bank slips, crypto and instant payment rails, without going through the F5 console.
Alternatives guides
For teams surveying the whole market: each guide lists real options, including Proteside's competitors, and says when each one makes sense.
- Feroot alternatives
- c/side alternatives
- Jscrambler alternatives
- Source Defense alternatives
- HUMAN Security alternatives
- Reflectiz alternatives
- SecurityMetrics alternatives
- Cloudflare Page Shield alternatives
- Akamai Client-Side Protection alternatives
- Imperva Client-Side Protection alternatives
- F5 Client-Side Defense alternatives
How we build these comparisons
Every mark comes from a public source: the vendor's website, open technical documentation, PCI Security Standards Council pages. The sources we consulted appear at the end of each page, with the date of the check. We do not use sales conversations, demos or third-party product tests.
When public documentation does not describe a feature, the mark reads "not found in public information". That does not mean the vendor lacks it; it means we did not find it. When a vendor states a limitation itself, we quote it as written.
We publish no pricing, no third-party ratings and no opinion on how anyone sells. The goal is to show what Proteside checks and leave the decision with the people who run the checkout.
Work at one of the vendors listed and spotted something out of date? Write to the email address in the footer of each page. We correct within five business days and log the change.
Frequently asked questions
What kind of tool is Proteside?
A cybersecurity layer that checks, on the payer's screen, whether the payment details shown are the ones the merchant issued, and blocks a swap before confirmation. It also inventories and controls the scripts on the payment page and produces the evidence for PCI DSS requirements 6.4.3 and 11.6.1.
Does Proteside replace fraud prevention, a WAF or a payment gateway?
No. Fraud prevention scores the buyer, the WAF protects the server and the gateway processes the payment. Proteside protects the stretch between the page and the confirmation, which none of the three can see. It runs alongside all of them.
Why do the other tools say nothing about UPI, Pix or QR codes?
Because they were built for a different problem: card data stolen by scripts on the page, which PCI DSS now requires merchants to control. UPI, PromptPay, PayNow, Pix, boleto (Brazilian bank slip) and crypto wallets use no card form; the scam there is swapping the payee. That is the gap Proteside covers.
Can Proteside run alongside one of these tools?
Yes. Many operations keep the CDN module or script agent they already have and add Proteside to the payment page to check the payment itself. The two scripts coexist; Proteside does not alter legitimate payments.
How often are these pages updated?
We recheck every source each quarter and whenever a correction request comes in. The date of the last check appears on each page.
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