"Smart targeting" in the context of a URL shortener usually refers to the ability to dynamically redirect users based on certain criteria, ensuring a personalized experience. This feature allows you to create a single shortened URL that redirects users to different destinations based on factors like their location, device type, language, or other custom parameters.

Here are some aspects of smart targeting in a URL shortener:

1. Geotargeting: You can redirect users based on their geographical location. For example, if you have different content or promotions for users in different countries or regions, the smart targeting feature can automatically redirect them to the appropriate destination.
2. Device Targeting: Redirect users to specific destinations based on the device they are using, such as desktop, tablet, or mobile. This ensures an optimized user experience tailored to the capabilities of the device.
3. Language Targeting: If you have content available in multiple languages, smart targeting can direct users to the page in their preferred language. This is particularly useful for international campaigns.
4. Time-based Targeting: Redirect users to different destinations based on the time of day or specific dates. For example, you might want to promote different products during the day and night or run time-sensitive promotions.
5. Custom Parameters: Some URL shorteners allow you to define custom parameters for smart targeting. This could include factors like user behavior, referral source, or any other criteria that are relevant to your campaign.
6. A/B Testing: Smart targeting can be integrated with A/B testing, allowing you to experiment with different destination URLs for specific segments of your audience and determine which performs better.
7. Dynamic Campaigns: It enables the creation of dynamic campaigns where a single URL can adapt to various factors, providing a personalized experience for users based on their context.

The goal of smart targeting is to enhance the relevance and effectiveness of your campaigns by delivering content that aligns with the preferences and characteristics of individual users. It can improve user engagement, conversion rates, and overall campaign performance. Keep in mind that not all URL shorteners offer smart targeting features, so it's essential to choose a tool that aligns with your specific needs and objectives.