Updated 3 Aug 2020
What is a Multiple Residence dataset and how is it used? Illustrations and examples of MR data
Updated 3 Aug 2020
Integrate address validation to your WordPress Gravity Forms pages
Updated 3 Aug 2020
Integrate address validation to your WordPress Formidable Forms
Updated 18 Aug 2020
ShopWired integration for UK address search and validation
Updated 8 Jul 2020
UK territories covered by Royal Mail's Postcode Address File (PAF) and the Ideal Postcodes APIs
Updated 21 Sep 2020
How to choose between Postcode Lookup and Address Finder
Updated 28 Aug 2020
Integrate address validation to your Sage application
Updated 2 Jun 2020
API Keys allow you to access our services outside the website. Find out what it is and how to use it
Updated 3 Jun 2020
Listed in PAF are names of companies, organisations and departments. This organisation information can be useful and appropriate for specific use cases
Updated 3 Aug 2020
Ensure your mail is correctly addressed with our UK clear addressing guidelines
Updated 3 Aug 2020
Integrate postcode lookup into your CRM app in a few simple steps
Updated 29 Jun 2020
Identifying the final user of Royal Mail's dataset
Updated 22 Sep 2020
Understanding the unique identifier for every street across Great Britain
Updated 12 Jun 2020
A guide on enabling Automated Top-Ups on your account
Updated 3 Aug 2020
Why your address might not be showing on Royal Mail's Postcode Address File
Updated 18 Aug 2020
Run a local instance of the latest Postcodes.io database and start dispatching SQL queries in minutes
Updated 21 Jul 2020
List of Thoroughfare & Dependent Thoroughfare descriptors in the UK
Updated 24 Aug 2020
ONSPD licensing: How data from Postcodes.io can be used
Updated 20 Jul 2020
The most accurate and reliable address dataset for the UK, provided by Royal Mail
Updated 3 Jun 2020
How to validate a UK postcode. Evaluating the trade-offs for various solutions including postcode lookup services, proprietary postcode datasets, free datasets and regular expressions (regex)
Updated 3 Aug 2020
The Not Yet Built dataset is an additional database from Royal Mail that lists properties currently in planning or under construction
Updated 3 Aug 2020
What is a UPRN, its uses and how it compares to the Postcode Address File
Updated 20 Jul 2020
A comprehensive outline of UK postcode patterns, its constituent components and how they can be utilised. Split a postcode into outward code, inward code, postcode area, district code, sub-district code, postcode sector and postcode unit.
Updated 22 Jul 2020
Address Verification System and Address Validation sound alike, but they are tools which have different uses
Updated 17 Aug 2020
Best practices to mitigate the risk of misuse on your API key for frontend and backend integrations
Updated 20 Aug 2020
Integrate address validation to your Unbounce form
Updated 24 Sep 2020
WooCommerce extension for UK address search and validation
Updated 1 Sep 2020
What is an Internal User? When is it correct to license this way?
Updated 3 Aug 2020
Step by step guide on creating an Ideal Postcodes account, creating a key and enabling automated top-ups
Updated 20 Jul 2020
Standard configuration settings for our address validation integrations
Updated 3 Jun 2020
How lookups are counted across Ideal Postcodes address search and validation APIs
Updated 10 Sep 2020
BigCommerce integration for UK address search and validation
Updated 23 Sep 2020
A guide to completing the Royal Mail charity registration form
Updated 23 Sep 2020
Understanding the unique ID number assigned to every premise in the UK
Updated 23 Sep 2020
What is a locality? What is a thoroughfare? Some common UK address questions answered