PD Shield for WHMCS and Blesta

PD Shield is available for WHMCS (8.13 or later) and Blesta (6.0 or later). Each has its own page with the screenshots, requirements and price for that system. A module is added to the PD Modules licence of the installation it runs on, so a WHMCS installation and a Blesta installation each hold their own licence.

No. The core protection is an invisible honeypot and background checks — real buyers see nothing and solve nothing. By default, anything suspicious is held for review rather than rejected, so you never lose a genuine sale by mistake.

The honeypot, email verification, disposable-email blocking, velocity limits, Order Guard and Purchase Limits are all free. PD Shield Pro adds transparent 0–100 fraud scoring, proxy/VPN/Tor detection, a review queue with rules, and reporting/analytics.

No. Order Guard only stops a flagged client from placing new orders. Renewals don't go through checkout, so existing services keep billing and running as normal.

The module reverts to the free front-door protection automatically. Your settings and data are preserved, and nothing breaks — you simply lose the Pro-only scoring, proxy detection, review queue and reporting until you renew.

No. Pro's risk scoring uses built-in signals with no metered per-check credits. You can optionally bring your own premium data-provider API key for deeper IP reputation, but that's entirely up to you.

The free tier never expires — it arrives with your PD Modules licence and keeps working, with no trial clock and nothing that switches off later. If you add Pro and then let it lapse, only the Pro features step down, in stages: a 14-day grace period where everything still works, then the Pro features lock and the module carries on as the free version. Nothing is deleted, nothing you configured is lost, and adding Pro again restores it immediately.

Only what you already pay your provider, plus Pro if you add it. The free tier costs nothing and Pro is a flat subscription — neither takes a cut of your provider usage. PD Shield connects to your own account with your own credentials, so the provider bills you directly at your rates.

Open a ticket from your client area, or use Get help inside the PD Modules panel, which attaches a diagnostic report — you see a preview of exactly what it contains, and can exclude any part of it, before anything is sent. Support is included with an active subscription; bug reports are welcome whatever your licence state.