Address lookup for smoother payments

Having the correct postcode at the point of payment is crucial for a smooth shopping experience for your customers, and even more importantly, reduced cart abandonment. Using postcode lookup or address auto-complete to capture a full address is far faster and more accurate than customers manually entering their data.


However, address lookup isn’t only beneficial for eCommerce businesses, it can also make online processes such as bank account registration and mortgage applications much easier. Reducing any stress and frustration for potential customers is bound to make a positive impact on your business, regardless of what product you have on offer.


Benefits of postcode lookup and address validation


There are many benefits of using an address lookup API – we’ve listed the top ones here:


Compatible across devices


From laptops to tablets to smartphones and EPoS kiosks, a postcode address lookup solution works on every internet-enabled device and provides the optimum user experience.


Scalable


Address lookup technology scales quickly on demand, processing hundreds of enquiries per minute. You can rest assured that our address finder will keep up with your customers even during big seasonal events or Black Friday sales.


User location detected


Address Auto-complete has the ability to sort results by distance from the user, detect which country users are in, and start with the closest matched addresses. If the customer is buying a gift for a friend overseas, for example, they can easily switch the country and the search tool will focus on matches in the selected country instead of their own location. This enables you to build one checkout form for all of your customers, regardless of where they are in the world.


Top tip: If your business trades internationally, choose Address Auto-Complete rather than UK Postcode Lookup to take advantage of our address data for over 240 countries.


Why use address validation?


Address lookup and validation for customer satisfaction


Streamline your checkouts by filling out forms faster and more accurately. Address Auto-Complete can reduce the number of keystrokes by up to 80%, this speeds your customers through the checkout, increasing conversions and reducing basket abandonments.


Accurate contact data


Collect accurate email addresses and phone numbers to boost customer relations and LTV. This can also have a positive impact on your marketing campaigns.


Accurate shipping address data for deliveries


You can reduce the number of failed deliveries with accurate address data, putting less stress on your delivery drivers. This in turn reduces wasted costs of reshipment and time handling customer complaints for missing items.


Easier and quicker for staff


Address and postcode finders are also useful for customer service employees, who are under pressure to search through a database of millions of addresses and locate the relevant location quickly. Businesses will benefit from address and postcode finders because they can quickly filter search results between commercial and residential addresses, enhancing the productivity of direct marketing.


Things to consider for improved payment page UX


Consider errors


If a lot of individuals type O instead of 0 or insert a space where one isn’t needed, their address might not be shown. To avoid this, implement a system that anticipates typical errors like these, ensuring their address is identified, irrespective of any typos.


Make sure to update regularly


If your address directory isn’t updated on a regular basis, you could be missing out on your customers’ new, updated and changed addresses, which translates to orders that you’re losing by losing touch with your existing customer base.


Take advantage of predictive search with Address Auto-Complete


Predictive search is far faster than typing out a whole address, displaying relevant addresses and allowing the user to select theirs is key to efficiency. Furthermore, some people may not know the delivery postcode, with Address Auto-Complete, they can start typing from any part of the address and the tool will present addresses as you type.


Mobile experience


It’s critical that this system functions well on mobile devices, especially since many people shop online using their phones these days. A good mobile UX means that they don’t have to scroll very far, that icons and fields are large enough to click smoothly, that the form works in landscape and portrait mode, that various mobile models’ keyboard features are fully integrated, and that required fields are clearly identified and explained.


How Fetchify’s address lookup and data validation works


Fetchify can implement a simple address lookup API into your business system, so you never have to worry about customer payments failing due to address errors again! With Address Auto-Complete, your users begin typing at any point of the address and suggestions are presented as they type.


With UK Postcode Lookup, all your users have to do is enter their postcode and we’ll display a drop-down menu of matching addresses. Once the user has clicked the correct address, the rest of their details will automatically be filled into their form. For more information get in touch with us and one of our expert team members will be happy to help.

About Fetchify


Fetchify’s address lookup and data validation platforms cover more than 250 countries, and increases customer conversion with the fastest, most accurate customer data capture. Fetchify’s flagship products – Address Auto Complete and Postcode Lookup – reduce friction at the checkout, and also significantly increase the number of successful deliveries. Founded in 2008, Fetchify processes millions of data transactions every day for clients ranging from startups to established high-street names, and offers a full suite of data validation tools, including phone, email and bank, too.

Photo of fields and countryside with Fetchify traditional, postal and ceremonial counties
By Fiona Paton October 27, 2025
Counties are one of those quiet curiosities of UK addressing - the kind of data field that often sparks more debate than you’d expect. Should they be included? Which kind? And do we even need them anymore? As with so many things in data, the answer is: it depends. Three Counties, One Country In the UK, the word “county” doesn’t describe one single thing. It describes at least three - each with its own history, purpose, and quirk: Postal counties were once the backbone of the Royal Mail’s sorting system. They helped machines (and people) get mail to the right place efficiently. But in 1996, Royal Mail officially dropped them, and by 2010, county data was removed from the official address dataset entirely. For the postal system, counties simply no longer exist. Traditional (or historic) counties trace their origins back centuries — the counties of record, land, and local identity. They don’t match today’s administrative borders, but they persist in cultural memory and local pride. To some, these are the real counties of England. Ceremonial counties , meanwhile, are what most modern maps and local authorities recognise today. They loosely align with lieutenancy areas — the basis for everything from local government to BBC weather maps. And just to add another layer, the UK also has metropolitan and non-metropolitan counties used for administration, because nothing in British geography would be complete without a little complexity. So… Do We Still Need Them? For Royal Mail, the answer is simple: no. County names are ignored by modern sorting systems, and they don’t affect delivery. But in the real world of databases, integrations, and overlapping address systems, the answer is less clear-cut. Counties still appear because: Some legacy systems require a county field for validation. Some organisations and couriers still use them for regional routing. And sometimes, humans just like them — they help people orient themselves, especially in places with duplicate town names. It’s a reminder that addresses aren’t just for machines. They’re for people, too — and people often bring context, emotion, and memory into their sense of “place.” The Bigger Picture: One World, Many Formats  Counties are just one example of how geography, history, and technology collide in addressing. Every country — sometimes every region — does it differently. Some use regions, provinces, or prefectures. Some rely on hierarchies of towns and municipalities. Others have no subdivisions at all. For global platforms and data validation providers, that diversity creates a fascinating challenge: how do you standardise something that isn’t standard anywhere? It’s the quiet work of address intelligence — understanding not just where something is, but how people describe it. Why This Matters The goal of address accuracy isn’t to erase local identity or force uniformity; it’s to understand and support variation intelligently. Whether you’re sending a parcel, mapping customer data, or building systems that work across borders, knowing how and why these differences exist is part of getting the data right. So next time you’re faced with that little “County” field — think of it not as a relic, but as a reminder. Behind every address is a history, a structure, and a story. And understanding that story is where true data quality begins.
A man with glasses in his office is looking at his laptop with excitement.
By Fiona Paton October 27, 2025
Fetchify is delighted to announce that we have enhanced our product portfolio with the launch of our data cleansing services designed to help companies remain compliant with the General Data Protection Regulation (GDPR), maintain accurate customer addresses, and limit financial and reputational losses resulting from lost parcels. Royal Mail’s Postcode Address File (PAF) sees over 1,000,000 changes to address data each year. Against the backdrop of GDPR regulations, which stipulate that customer data must be kept up to date, there is increasing pressure on organisations to maintain an accurate picture of their customer database at all times. Businesses failing to comply face fines of up to £17.5 million or four per cent of global annual turnover. Furthermore, with UK businesses losing an estimated £1.6 billion each year due to lost or undelivered parcels, and 50 per cent of customers abandoning a brand after one poor delivery experience, the stakes are increasingly high when it comes to maintaining accurate address details. Data Cleansing tackles this by checking the addresses companies have on file against the PAF, ensuring that every matched address is complete. Not only does the report help businesses maintain accurate records continually, but it also fills in missing details, such as street information and postcodes, and standardises entries to Royal Mail’s specific formatting. Fetchify’s latest service is expected to help retailers stay on top of their GDPR obligations, minimise failed deliveries, cut returns costs, and improve the customer experience. John Griffiths, Account Manager at Fetchify, comments: “Duplicate records cause confusion, missing data undermines marketing efforts, and incorrect formats lead to delivery and communication errors. Perhaps more compelling is the fact that businesses are legally required to maintain accurate details, so it’s imperative that they get it right. Data Cleansing will address all of these issues whilst streamlining the operational efficiency of companies that use it.”
Tracey is sitting in an office environment
By Fiona Paton September 8, 2025
A spotlight on Tracey Moir, Senior Business Development Manager at Fetchify
Showroom display of a range of prams for sale at Winstanleys Pramworld
By Fiona Paton September 1, 2025
“We’ve stayed with Fetchify for over 12 years because their UK Postcode Lookup service has consistently delivered on reliability. The ease of integration, straightforward testing, and the support of a dedicated account manager have all contributed to a seamless experience that continues to meet our needs.” – David Winstanley, Director at Winstanleys Pramworld
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