A guard that lives inside your checkout.

It knows who's buying before they finish entering their email. It decides what they get. And it does it all in under 50ms, without a single discount code.

Greet new customers

The guard recognizes first-time buyers and rolls out whatever you set up. Free shipping, welcome gift, intro discount, BOGO. Happens automatically. No code for them to enter, nothing to share.

Stop returning buyers from gaming offers

Different email? Same person. Guest checkout? Still caught. Changed their address? Doesn't matter. The guard sees through it and blocks the offer, warns them, or charges full price.

Reward by your rules

Discount by product at checkout. Free shipping for subscribers. Special price for tagged customers. BOGO on first subscription. You write the rules, the guard enforces them at checkout. Automatically.

Build a profile on every buyer

The guard links orders together even when the buyer uses different emails, checks out as a guest, or creates a new account each time. You see one customer, not five fake ones.

You tell the guard what to do. It does it.

Every action is configurable per rule. Different products can have different responses.

🛑

Block

Stop the checkout completely. They can't buy the protected product.

Warn

Show a message but let them continue. You still see the flag.

🎁

Reward

Apply free shipping, a gift, a discount, or BOGO automatically.

🚩

Flag

Let the order through but tag it for your team to review.

Hold

Pause fulfillment until you've reviewed the order manually.

📋

Record

Log everything silently. No action taken, full history kept.

Allow

Verified clean. The guard lets them through with the offer.

Pass

Skip the check entirely for specific products or customer tags.

No discount codes. Ever.

Discount codes are unreliable. They conflict with each other, they only allow one per checkout, customers forget to enter them, they can't handle conditional logic like “only if this is your first order” or “only if you're subscribed.” And on top of that, they leak. OfferGuard replaces the whole system. The guard decides at checkout who gets the offer based on who they are. Fully automatic.

Discount codes

  • Only one code per checkout
  • Conflicts with other discounts
  • Customers forget to enter them
  • Can't check if someone is new
  • Leak on social media
  • Manual setup per campaign

Honor system

  • “New customers only” in the description
  • No enforcement at all
  • Anyone can buy it
  • You find out too late

OfferGuard

  • No codes, nothing to enter
  • Stacks with any other discount
  • Applied automatically at checkout
  • Knows who's new and who isn't
  • Nothing to leak or share
  • Set it once, runs forever

What the guard catches

People try all kinds of tricks to grab new-customer offers again. The guard has seen them all.

They use a different email

Same phone, same device, same address. The guard doesn't care what email they used.

They check out as a guest with no account

The guard has been watching since their first page view. No account needed to recognize them.

They use a Gmail dot trick or plus alias

[email protected] and [email protected]? Same inbox. The guard knows.

They change their shipping address

Same device, same phone. A new address doesn't make them a new person.

They use a disposable email

The guard blocks 3,000+ throwaway email providers on sight.

They use private browsing

The guard was tracking their device from the first page view. Incognito doesn't erase that.

They try everything at once — new email, new phone, VPN, different browser

Multiple signals still overlap. The guard connects the dots and flags it.

After the order goes through

The guard doesn't clock out after checkout. It scores every order for risk and takes whatever action you set up.

Auto-tag orders

Tag suspicious orders so you can filter them in Shopify admin or trigger Shopify Flow automations.

Risk scoring

Every order gets a risk score based on the buyer's profile. See it right on the order page.

Hold fulfillment

Pause shipping on flagged orders until your team reviews them. No risky packages going out.

Alert your team

Get notified when something looks off. Order notes explain exactly what the guard saw and why.

Why other apps can't do this.

Other apps don't know who the customer is. They rely on discount codes and logged-in accounts. If someone checks out as a guest, those apps are blind. And the average customer already knows how to get around traditional protection. New email, new address, VPN, incognito mode — this isn't hacker stuff anymore, it's common knowledge. OfferGuard was built for that reality.

Other apps

  • Don't know who the customer is
  • Only work if the customer is logged in
  • Rely on discount codes to deliver offers
  • Blind at guest checkout
  • Can't tell new customers from returning ones
  • No way to enforce “first order only”

OfferGuard

  • Knows who the buyer is, every time
  • Works at guest checkout, no account needed
  • No discount codes, fully automatic
  • Identifies returning buyers even with new emails
  • Runs server-side inside Shopify's checkout
  • Under 50ms, nobody notices

Put a guard on your checkout.

Free plan, no credit card. Takes two minutes.