Stop paying for failed deliveries

Address Verifier checks every shipping address against real carrier data and catches the bad ones before they ship, saving you redelivery fees and unhappy customers.

Install on Shopify

Free plan included. First 100 orders fully verified free, no credit card.

Validates against

yourstore.com / checkout / thank-you

Checkout · shipping address

Street address
City, state, ZIP
San Francisco, CA 94118
Place order

Validating address…

Checking against carrier data

!

Check your delivery address

We found a verified match. The street and ZIP were corrected for delivery.

Suggested Verified

215 Clayton St
San Francisco, CA 94117-1913

You entered

215 clayton stret
San Francisco, CA 94118

Use this address Edit address

Address verified for delivery

215 Clayton St
San Francisco, CA 94117-1913

Matched to the carrier-verified format. It ships the first time, no redelivery fee.

Got it Undo
// the problem

A missing apartment number is invisible to you until the parcel bounces, the carrier bills you, and a first-time customer never comes back.

Bad addresses are a quiet, recurring tax on every store. We catch them before they ship.

// how it works

Live in minutes. Working on every order.

1

Install, free

Add Address Verifier from the Shopify App Store. No code, no theme edits, no developer required.

2

Customers check out

Shoppers enter their address as normal. Nothing changes for them until something looks wrong.

3

We verify & fix

In milliseconds we validate the address, suggest the deliverable version, and flag the ones that can't ship.

// the fix

You sell. We make sure it can ship.

Two lines of defense plus a rules engine you control, so undeliverable orders get caught before they reach your fulfillment queue.

At checkout

Verify the address in real time

As the customer checks out, we validate the address against carrier data, flag the undeliverable ones, and offer the corrected version for one-click accept.

  • Smart correction suggestions, standardized format
  • Works with Apple Pay, Shop Pay and PayPal

Street address

1455 Market Street, Suite 600
Verified to the delivery point
After checkout

Catch what checkout misses

A second check on the post-purchase Thank-You page catches express checkouts and edge cases, then prompts the customer or alerts you before the order ships.

  • Covers every Shopify plan
  • Auto-tags risky orders and emails you
Order #1043 address-unverified
!

We couldn't verify 22 Lakeshore Rd. It may be missing a unit number.

Your rules

Block what you don't ship

Decide exactly what gets stopped. Flip rules on and off from one dashboard. No code, no theme edits.

  • PO boxes, parcel lockers, missing house numbers
  • Malformed ZIP / postal codes, restricted regions

Blocking rules

Block PO boxes
Require house number
Block parcel lockers
Block invalid ZIP codes
// everything else

Built to feel native. Priced to be obvious.

ROI analytics

Addresses checked, errors caught, and estimated fees saved, all in one view.

Delivery-point precision

Exact-unit verification across the US & Canada, down to the apartment or suite.

Built for Shopify

Embedded admin, App Bridge, GraphQL and session tokens, so it feels native.

ZIP & postal codes

Catches malformed US ZIP / ZIP+4 and Canadian postal codes before they ship.

Order tagging

Auto-tag orders fixed, invalid or unverified for your workflow.

No-code setup

Install, flip the switches you want, go live. Minutes, not a project.

$25
typical cost of one failed delivery in carrier fees, reshipping & support
4–5%
of e-commerce orders contain an address error customers never notice
US+CA
our focus, verified to the delivery point (the exact apartment or suite)

Figures reflect widely-cited industry estimates for shipping-address failure costs.

Address validation shouldn't be an enterprise luxury. We built the reliable, fairly priced tool we wished existed: accuracy you can trust, native to Shopify, and support that answers.

From the team behind Address Verifier

// pricing

Fair, usage-based, free to start.

Rule blocking is free forever. Your first 100 orders get full verification on us, no credit card.

Free

Rule-based blocking and warnings

$0/ forever

No subscription. No order fees.

  • Rule-based blocking at checkout (PO Boxes, missing house numbers, and more)
  • Warn buyers after purchase when an address breaks a rule
  • Pick the rules, write the messages
  • No waiting time at checkout
Install on Shopify
Recommended

Pro

Full address verification

$0.04/ order

First 100 orders free

  • Everything in Free
  • Every address verified against carrier data
  • One-tap fix for buyers after checkout
  • One charge per order, however many re-checks
Install on Shopify
// questions

Everything you might be wondering.

What is Address Verifier?
Address Verifier is a Shopify app that validates customer shipping addresses in real time at checkout and again on the post-purchase page. It flags undeliverable addresses, suggests the corrected version for one-click accept, and blocks the ones that can't ship, so you stop losing money to failed deliveries.
Is there a free plan?
Yes, and it stays free forever. Rule-based blocking at checkout costs nothing: no subscription, no order fees. Your first 100 orders also get full carrier verification free, no credit card. After that, verification is $0.04 per order on Pro.
Which platforms does it support?
Address Verifier is built for Shopify. It runs at checkout and again on the post-purchase Thank-You page, so it works on every Shopify plan, including stores using express checkouts like Shop Pay, Apple Pay, Google Pay and PayPal.
How accurate is the validation?
Address Verifier is built for merchants in the US, Canada, the UK, Australia, and New Zealand. US and Canada addresses are verified down to the delivery point (the exact apartment, suite or unit) against USPS and Canada Post data. The UK, Australia and New Zealand are supported too, and every result comes back with a precision level and confidence score, so the app knows when to prompt versus accept silently.
What does it cost?
Rule-based blocking is free forever, with no subscription and no order fees. Carrier verification is free for your first 100 orders, then $0.04 per order on Pro, as low as any comparable US app. You're charged once per order no matter how many times an address is re-checked.
Will it slow down or hurt my conversion?
No. Validation runs in milliseconds, and the app is designed to fail open. If our service is ever unreachable, we never block a sale. The order completes and gets flagged for you to review instead.
Do I need a developer?
No. Install from the Shopify App Store, toggle the rules you want from the dashboard, and you're live. No code and no theme edits.

Stop paying for failed deliveries.

Install Address Verifier, toggle the rules you want, and every address gets checked before it ships. Your first 100 orders are free.

Install on Shopify

Free to install · No code, no theme edits