SilentShield

SilentShield is an invisible, GDPR-compliant CAPTCHA alternative for Shopify stores. You add a small client script to your theme.liquid and verify submissions with a single API key — no Shopify app required. It blocks bots on checkout, login and contact forms without cookies, tracking or personal data, and hosting is EU-only by default.

Invisible Bot Protection for Shopify

Protect your Shopify store from bots, fake orders, and scalping – without disturbing your customers.

Shopify bot protection

Comprehensive Shopify Protection

Checkout Protection

Prevents bot-driven orders and cart manipulation

Fake Account Protection

Stops automated registrations and fake accounts

Scalping Protection

Fair product availability during limited drops and sales

Payment Protection

Prevents card testing and fraudulent payment attempts

Benefits for Your Store

Higher checkout completion with invisible protection
Significantly fewer fake orders and bot registrations
No purchase abandonment due to CAPTCHA frustration
GDPR-compliant – suitable for EU stores
Compatible with all Shopify themes
No performance impact on your store

Integration in 3 Steps

1

Embed the client script

Embed the SilentShield client script into your Shopify theme (theme.liquid): <script src="https://api.silentshield.io/client.js?k=YOUR_API_KEY"></script>

2

Configure Protection

Choose which areas to protect: Checkout, Login, Contact Form.

3

Verify on your backend

Verify the SilentShield token on your backend – invisible protection is active.

How SilentShield works on Shopify

SilentShield runs an invisible check while shoppers use your store, so there are no image puzzles at checkout. You embed a lightweight client script in your theme and verify each submission on your backend with one API key. Because it uses no cookies and no tracking, it protects your store without slowing pages or affecting the buying experience.

Add it to your theme without an app

There is no Shopify App-Store app to install. You place the SilentShield client script in your theme.liquid layout and add the verification step to the forms you want to guard, such as contact, newsletter and account pages. This keeps you in full control of your theme and avoids extra third-party dependencies in your store.

Setup walkthrough

Create a SilentShield account and copy your API key. Open your theme code, add the client script https://api.silentshield.io/client.js?k=YOUR_API_KEY to theme.liquid, and send the generated token to your backend. Verify it against https://api.silentshield.io/v1/verify using the api-key header. Once verified, genuine shoppers continue without interruption.

Privacy-friendly protection for your store

SilentShield sets no cookies and collects no personal data, so your store stays GDPR-compliant and your customers are not tracked. Traffic is processed on EU-only infrastructure by default. The invisible design meets WCAG 2.1 AA, so shoppers using a keyboard or screen reader can complete checkout without solving a challenge.

Protect Your Shopify Store Now

Embed script, configure, done. Start for free – no credit card required.

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Frequently asked questions

How do I add SilentShield to Shopify?

Embed the SilentShield client script in your Shopify theme by adding `https://api.silentshield.io/client.js?k=YOUR_API_KEY` to theme.liquid, then verify the proof-of-work nonce on your backend at `https://api.silentshield.io/v1/verify` using the `api-key` header. This protects your store forms invisibly with a single API key.

Does SilentShield have a Shopify app?

SilentShield integrates with Shopify through a theme script embed rather than a dedicated app. You add the client script to theme.liquid with your API key and verify the nonce on your backend, giving your store invisible bot protection without cookies, tracking or image puzzles.

Is SilentShield GDPR-compliant for Shopify stores?

Yes. On Shopify, as on every plan, SilentShield hosts data in the EU by default, sets no cookies, does no tracking and stores only pseudonymised data. Because it sets no tracking cookies, it typically needs no consent banner — helpful for stores serving EU shoppers.

Will SilentShield slow down my Shopify store?

No. SilentShield adds a single lightweight client script to your theme and has no image assets to load. Verification uses behavioral signals and a proof-of-work nonce with no third-party tracking calls, so it adds minimal overhead to page load and checkout.

Do Shopify shoppers have to solve a CAPTCHA?

No. SilentShield is invisible, so shoppers never see an image puzzle or checkbox. It verifies real customers in the background through behavioral signals and a proof-of-work nonce, meeting WCAG 2.1 AA, while blocking abuse bots on your store forms — keeping checkout friction at zero.

What does SilentShield cost for Shopify?

SilentShield has a free tier and paid tiers, all using a single API key and the same theme script embed. The free tier includes invisible protection, EU hosting, no cookies and pseudonymised data only; paid tiers cover higher request volumes for busier stores.