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Browse Geocoding Tutorials, Guides & Updates
Idempotent Geocoding: Why and How to Make Calls Safe to Retry
A geocoding pipeline that isn't idempotent is a pipeline that double-charges you, double-writes results to your warehouse, and silently corrupts data the day a worker crashes between "API call succeeded" and "result written to DB." Idempotency isn't optional — it's the property that lets you retry on every failure without consequences. Done right, it's invisible. Done wrong, you find out about it...
| May 13, 2026
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Deduplicating Geocoded Addresses: Stable Keys and Fuzzy Matching
You buy a marketing list of 50,000 addresses. You geocode it. The bill is $25. A week later you buy a "fresh" list from the same vendor. You geocode it. Bill is $25 again. You compare the lists: 18,000 of those 50,000 are the same addresses written differently. You just paid $9 to geocode the same buildings twice. This post is the deduplication playbook. Stable hash keys for the easy 80%, fuzzy ma...
| May 12, 2026
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Address Parsing Before Geocoding: Cleaning Inputs for Better Matches
The single biggest match-rate improvement most geocoding pipelines never make is parsing the address before sending it. The team running the pipeline assumes the geocoder will figure out "123 Main St Apt 4B Brooklyn NY 11201"; it usually does. They also assume it will figure out " Apt 4B / 123 main street Brooklyn, NEW YORK 11201-1234, USA "; this is where match rates start to slip. Every quirk...
| May 11, 2026
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Designing a Batch Geocoding Queue: SQS, BullMQ, or Custom
A geocoding pipeline that handles a million addresses on a Tuesday morning is not a script with a for loop. It is a queue, a pool of workers, a retry policy, a dead-letter sink, and a status table. Get the shape right and you handle ten million the same way you handle ten thousand. Get it wrong and you spend the next six months patching edge cases that all share the same root cause: the queue wa...
| Updated May 10, 2026
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p99 Latency in Geocoding: Why Your Average Lies
A geocoding pipeline serving 95% of requests from cache in 5ms and the remaining 5% from upstream in 4 seconds has a mean latency of about 205ms. Put that on a dashboard and it sounds healthy. It is also nearly useless. The number tells you nothing about what 1 in 20 of your users actually experiences — which, in this example, is two orders of magnitude worse than the average suggests. The number...
| May 09, 2026
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Concurrency Tuning for Geocoding: Finding Your Sweet Spot
A geocoding pipeline running at concurrency 1 wastes throughput. The same pipeline running at concurrency 512 wastes money — it eats 429s, amplifies tail latency, and starves its own connection pool. The sweet spot sits between those two failure modes, and most teams either guess at it (usually too low) or ramp it until something breaks (usually too high). Neither approach is necessary. Little's L...
| May 08, 2026
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Geocoding Confidence Scores Explained: When to Trust, When to Reject
A regional delivery company once shipped 412 packages to coordinates roughly 800 metres from the actual front door. Some landed at the wrong end of a rural road, a few at a postcode centroid in the middle of a field, one in a river. The post-mortem was short: their pipeline accepted every result the geocoder returned, and the geocoder had been quietly stamping accuracy_score: 0.4 on roughly 6% o...
| May 07, 2026
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PHP Geocoding API Tutorial: Guzzle Pools and Production Patterns
PHP runs more geocoding workloads than the conference talks suggest. Magento and Shopware stores normalising checkout addresses, Laravel listing aggregators ingesting MLS feeds, WordPress directories with a million POIs, marketing-automation tools that want a lat,lng next to every CRM record. The language is everywhere this work actually happens, and the right tool for the HTTP layer has not cha...
| May 06, 2026
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Go Geocoding Tutorial: Goroutines, Bounded Concurrency, and Backoff
Go is the language to reach for when you want concurrency without async/await ceremony. Goroutines are 2 KB stacks, channels are typed pipes, and the standard library net/http is good enough for production from day one. There is no event loop to learn, no await keyword to scatter through every function, and no colored-function problem. You write straight-line code, and you fan it out with go...
| May 05, 2026
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Geocoding UK Addresses: Postcodes, UPRN, and Edge Cases
UK addresses look superficially similar to US addresses — house number, street, town, postcode — and that surface similarity is exactly what wrecks pipelines built by teams whose default mental model was forged in North America. The UK does not work like the US. The postcode is not a coarse zone; for a meaningful slice of the country it identifies a single building. People search by postcode alone...
| May 04, 2026
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