Address verification software uses a database of official addresses to ensure that the information entered into your system is correct and up-to-date. This can reduce the cost of returned or undeliverable mail, improve customer satisfaction, and help you make informed shipping decisions. There are a number of different address validation tools on the market, from free online address checks to enterprise-scale data quality management solutions.
USPS offers an online address verification tool that checks addresses one at a time and returns results in USPS standardized format. This is easy enough to use, but can be time-consuming if you need to process large numbers of addresses. For businesses looking for a more automated solution, there are CASS-certified address validation APIs that can run addresses in bulk and integrate with your website or shipping service.
Most address validation services start with the USPS data and then acquiesce additional addresses from authoritative private and public sources to provide comprehensive coverage. Some of these services offer multiple types of address cleansing, including standardization (which changes spelling and abbreviations) and correction, which fixes incorrect data, fills in missing data, and eliminates duplicates.
Another type of address validation is delivery point verification, which determines if an address is a valid delivery point according to the rules of your country's postal authority. This is useful for ecommerce sites that need to know whether they are delivering to a physical address or a PO Box.
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