The 5 Key Benefits of Address Validation in Your Webshop

Address validation may sound like a technical detail, but its impact on your webshop is significant. From fewer returns to higher conversion rates — here are the five most important benefits.

1. Fewer Errors and Returns

In the Netherlands, every combination of postal code and house number is unique. With address validation, the street name and city are filled in automatically as soon as the customer enters their postal code and house number. Typos in the address become a thing of the past.

For Belgian addresses, it works differently: one postal code covers multiple streets. That is why ApiCheck offers an autosuggest feature where the customer starts typing the street name and immediately sees matching options. The result is the same: a correct address in your system.

2. Faster and More User-Friendly Checkout

Fewer fields to fill in means a faster checkout — and a faster checkout means fewer abandoned purchases. Customers only need to enter their postal code and house number; the rest fills in automatically.

This is especially helpful on mobile, where typing is more error-prone. Higher address quality and a smoother purchase experience go hand in hand here.

3. Better Customer Service and Fewer Support Requests

"My package never arrived" is one of the most common customer service questions in webshops. Address validation eliminates the primary cause: an incorrectly entered address. Fewer return inquiries, fewer escalations, less time spent investigating missing shipments.

4. Lower Shipping and Logistics Costs

Every failed delivery costs money. A return shipment, a new package, extra shipping costs — this quickly adds up to €10 to €25 per incorrect address. ApiCheck also returns GPS coordinates (WGS 84) with every address, which simplifies integration with route planning and CRM systems.

5. Higher Reliability of Your Customer Data

A clean address list has value. Whether you send newsletters, run a loyalty program, or analyze marketing campaigns — reliable customer data makes all those processes better. With address validation at registration, you build a high-quality database from day one.

Frequently Asked Questions

How does address validation work for Dutch addresses? You send the postal code and house number to the API. It returns the street name, city, municipality, and province — plus optional GPS coordinates.

And for Belgian addresses? In Belgium, postal code and house number are not unique. The autosuggest feature lets the customer start typing the street name while the API filters matching suggestions in real time based on the postal code.

Conclusion

Address validation is a small investment with a large impact: fewer returns, higher conversion, and a better customer experience. ApiCheck offers free plugins for WooCommerce, Magento 2, and Contact Form 7 — so you can go live within an hour.