Why postal code boundaries and administrative boundaries differ
A postal code area and a city or county boundary are drawn for entirely different purposes, and they frequently do not line up, which trips up anyone who assumes they should.
My Geocode blog (page 7)
Notes on geocoding, IP data, and building on the My Geocode API.
Older posts
Adding local currency display to a pricing calculator
A software vendor's pricing calculator showed every number in one currency, which meant a visitor from almost anywhere else in the world had to do their own mental conversion before the price meant anything.
Set up a fallback when a lookup returns no result
An empty result is a normal, valid response, not an error, and your code needs a deliberate path for handling it.
What "unlimited requests" should mean, precisely
Unlimited should be a testable claim, not a mood. If a plan has a real ceiling anywhere, that number belongs on the pricing page, not the word unlimited.
Updating client libraries and SDKs during a migration
A migration is not just a backend change if your application relies on a provider's official client library. Here is how to handle that layer.
How country-code top-level domains relate to location data
A .de domain suggests a connection to Germany, but it is a weak and sometimes misleading signal compared to an actual IP-based or address-based location.
Building a franchise territory planner
A franchisor expanding into a new region needed to know exactly where existing locations already were before drawing lines for new franchisee territories.
Build a currency-aware pricing page from IP data
Show a visitor a price in a currency they recognize by detecting their country from IP, while keeping your own settlement currency fixed.
Updated terms of service and privacy policy
Our terms of service and privacy policy have been updated to reflect the current shape of the platform, including its compatibility hosts.
Why per-country pricing tiers are a bad idea
Charging more to look up an address in one country than another treats geography itself as a pricing lever instead of plain, ordinary data to serve.
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