Firebase动态链接（短链接）过期时间与复用可行性技术咨询

Hey there! Let's walk through all your questions about Firebase Dynamic Links (short links) clearly, since I’ve worked with these extensively:

Can I create one link and send it to hundreds of people? #

Absolutely—this is totally feasible and encouraged! Firebase Dynamic Links are built to handle high traffic loads, so sending a single link to hundreds (or even thousands) of users won’t cause any issues. The only thing to keep in mind is making sure the destination content (your app deep link target or web URL) can handle the incoming click traffic if you expect a surge at once, but the link itself will hold up just fine.

Will the link work if clicked 1 day/1 week/1 month/1 year later? #

By default, Firebase Dynamic Links don’t expire automatically. That means unless you explicitly set an expiration time when creating the link (via the Firebase Console, REST API, or SDKs), it will work no matter when someone clicks it—whether that’s a day later, a year later, or even longer. If you did set an expiration timestamp, the link will stop functioning once that time passes, but if you skipped that step, it’s permanent.

Can I use the same link permanently, or do I need to regenerate it every time? #

You can absolutely reuse the same link permanently (as long as you don’t manually disable it or set an expiration). There’s no rule that forces you to regenerate links for each send. In fact, reusing a single link is one of the big perks—you can use it across multiple campaigns, share it with different user groups, etc., without having to create new links every time.

A quick pro tip: If you ever need to update where the link redirects (like changing the app deep link path or switching the web destination), you can edit this directly in the Firebase Console. The existing short link will automatically point to the updated destination—no need to create a new one!

内容的提问来源于stack exchange，提问作者IOSporgrammerIOS