Akamai, Imperva, Reflectiz or Source Defense: Which Fits?
We make Script Monitoring, so read this as a vendor's comparison. Akamai Page Integrity Manager (now Client-Side Protection & Compliance), Imperva Client-Side Protection, Reflectiz and Source Defense each fit a real set of constraints. For each one: what it does well, what to check with the vendor, and when to choose it, plus where Script Monitoring fits if none of those constraints is yours. Every comparison, with sources: https://www.scriptmonitoring.com/alternatives/
Full answer: Client-Side Security Comparisons
Transcript
Akamai's and Imperva's modules fit teams already on those platforms. Reflectiz fits teams that can't add a tag. Source Defense fits teams that want to constrain scripts, not watch them. We make Script Monitoring, so we're biased. If none of those constraints is yours, Script Monitoring is a standalone tag that watches every script, in every session. Akamai Page Integrity Manager is now Client-Side Protection & Compliance. If Akamai already fronts your traffic, it's one contract, one vendor review and one support relationship, with threat intelligence across an enormous traffic footprint. Check: pricing is usage-based and not published. It can run at Akamai's edge or from your origin, and you buy it from Akamai. Ask whether the free tier announced in 2021 is still offered. Choose it if consolidating vendors matters most. Imperva Client-Side Protection. Its published guidance on 6.4.3 & 11.6.1 is genuinely good, and it sits beside a mature WAF, so client-side and server-side share one console. Check: it's most valuable if you already run Imperva, pricing is by quote, and there's no self-serve evaluation. Imperva or Akamai? Start with the one you already run. Reflectiz needs no code change at all. If getting a tag onto your checkout takes months, that's the deciding factor, and nothing else on the list matches it. Check: scans run on a schedule from datacentre IPs, with no coverage between them, and a scanner can't block. Some assessors won't accept that, so ask yours first. Choose Reflectiz if you genuinely can't add a script. Can't add a tag? Our Agentic Web Scanner, on Pro, scans your pages on a schedule and records the scripts each page loads. Nothing to install. Like any scanner, it can miss scripts that only target real visitors. Source Defense sandboxes third-party scripts and applies per-script permissions: rather than watching what a script does, it constrains what it can do. It's mature, with Q S A-validated controls. Check: some vendor scripts need configuration, so budget integration time. Choose Source Defense if you want to constrain what scripts can do, and you have the engineering time to tune a sandbox. It's a legitimately strong model. And with Script Monitoring, PCI evidence is on every plan, down to a weekly evidence pack for your assessor. Script Monitoring is free for 1,000 page views a month, and Pro starts at $99 a month, with a 14-day trial. Start for free at scriptmonitoring.com.