OnlinePostcodeZoeken | Built for speed

Client: OnlinePostcodeZoeken.nl is a Dutch postcode and address lookup service, helping users find the right postcode for any address and locate nearby postal points, mailboxes, and post offices, in seconds.

The Challenge

At its core, OnlinePostcodeZoeken helps users find the right postcode for any Dutch address in seconds. From there, users can also see additional information about the area, such as nearby postal facilities and maps.

When people arrive on OnlinePostcodeZoeken, they're usually looking for one quick answer, not browsing around. Unlike a site people return to regularly, most visits here are one-off, so if a lookup takes even a few seconds too long, visitors are far more likely to leave immediately rather than wait it out. Every slow result risks turning into a lost visitor for good, not just a delayed one.

What OnlinePostcodeZoeken needed was a hosting partner who could consistently deliver fast results, no matter how many people were searching at once.

What We Built and Manage

Managed Symfony Hosting
OnlinePostcodeZoeken's core engine runs on a Symfony hosting environment. This includes the postal code and address lookup, along with the pages organized by province, municipality, and street. With so many pages to serve, the hosting needs to keep every page loading as quickly as possible. In most cases, visitors are searching for one specific answer, so a slow page anywhere on the site risks losing that visitor for good.

NodeJS Hosting
Finding a postcode is only part of what OnlinePostcodeZoeken offers. The website also locates nearby mailboxes and post offices, calculating distance and travel time on the spot. That kind of fast calculation runs on a dedicated NodeJS environment, built to keep up with the speed the feature promises, even when many people search at once.

The Result

OnlinePostcodeZoeken now runs on a hosting setup built around speed, with Symfony powering the core lookup engine and NodeJS handling on-the-spot postal point calculations. When someone searches for a postal code or checks the nearest mailbox, results load fast and consistently, even under heavy traffic. This keeps OnlinePostcodeZoeken true to its promise: a quick answer, every time.