A deep link takes you directly to a specific page or section inside an app or website, not just to the home page

When you tap a link on your phone and it opens an app to a specific screen — like a product page in a shopping app or a particular tweet in Twitter — that is a deep link. Without it, the link would open the app's home screen instead, and you would have to navigate manually to find what you wanted. Deep links work the same way on websites: they point to a particular page, not just the domain.

The difference matters because it changes what happens when someone shares a link with you. A regular link to Amazon's home page is amazon.com. A deep link to a specific product is amazon.com/dp/B0C3V5Z9K2 — it takes you straight there. In apps, the principle is identical, but the technical setup is more complex because apps do not work like websites.

Key Takeaways

  • Deep links point to a specific location inside an app or website, not to the home page or main entry point.
  • Universal links (on iPhone) and App Links (on Android) are the modern standard and work across apps, browsers, and text messages.
  • Without a deep link set up, tapping a shared link opens the app but leaves you at the home screen, forcing manual navigation.
  • Deep links let businesses track which content people share and which links drive the most engagement.

How deep links differ from regular links

A regular URL like example.com/about works the same way whether you type it into a browser or receive it in a text message — the browser opens and shows you that page. An app link is different. If you receive a link to a specific item in an app you already have installed, the app can intercept that link and open directly to that item, skipping the home screen entirely.

The catch is that apps have to be configured to recognize these links. When a developer creates a deep link, they are telling the app: "If someone opens this URL, do not just launch the app — navigate to this specific screen." Without that setup, the link either opens the app to its home screen or opens in a web browser instead of the app at all.

This is why some links work perfectly in an app and others do not. A link that was not set up as a deep link will not trigger the app to open, even if you have the app installed.

Universal links and App Links: the modern standard

Universal Links (Apple's term) and App Links (Google's term) are the current best practice for deep linking. Both work by having the app developer publish a configuration file on their web server that says: "These URLs belong to our app, and here is how to handle them."

When you tap a link on iPhone, iOS checks whether a Universal Link exists for that domain. If it does, the app opens to the right screen. If not, the link opens in Safari. On Android, the same logic applies with App Links. This approach is more reliable than older methods because it does not require the app to intercept every link — the operating system handles it at a system level.

Both systems also allow fallback behavior. If you do not have the app installed, the link can open in your web browser to a mobile-friendly version of the same content. This means a single link can work whether you have the app or not.

Why businesses use deep links

Deep links solve a real problem for app developers and marketers: they let people share specific content directly. Without them, someone sharing a product or article from an app would have to tell you the name and ask you to search for it. With deep links, they can send you a link that opens the app to exactly what they wanted to show you.

Deep links also let businesses measure engagement. When someone clicks a link and lands on a specific product page, the company can track that the link drove traffic to that page, not just to the app in general. This data helps them understand which content gets shared most and which links convert best.

For users, deep links make sharing faster and more accurate. You do not have to worry about whether the person you sent the link to will find the right thing — the link takes them there automatically.

The difference between deep links and deferred deep links

A deferred deep link handles the case where someone does not have the app installed yet. When you tap the link, the system takes you to the app store to download the app. Once you install it and open it for the first time, the app remembers where you were trying to go and opens to that screen instead of the home screen.

This requires a third-party service to track the link and pass that information to the app. The app has to be configured to receive this data on first launch. Without deferred deep linking, a link to a specific item in an app you do not have installed would just take you to the app store, and you would start at the home screen after installing.

Deferred deep links are more complex to set up and require coordination between the app developer and a tracking service, so they are less common than regular deep links. But they are valuable for marketing campaigns where you want to drive new users to a specific piece of content, not just to the app in general.

Common problems with deep links

Deep links break when a company changes its app structure or removes a page. If the app updates and the screen that the deep link pointed to no longer exists, the link will either fail or open to a default screen. This is why some links work one day and stop working the next.

Another issue is that not all apps support deep linking. Older apps or apps from smaller developers may not have set up the infrastructure to handle them. In those cases, tapping a link just opens the app to its home screen, and you have to navigate manually.

Deep links also do not always work across different contexts. A link that works when you tap it in a text message might not work when you paste it into an email or a web browser, depending on how the app and operating system handle it. Testing links across different apps and devices is important before sharing them widely.

How to recognize a deep link

You cannot always tell by looking at a URL whether it is set up as a deep link. A deep link URL looks like a regular web address — it has a domain, a path, and sometimes parameters. The difference is invisible: it is in the configuration on the app developer's server and in the app itself.

The easiest way to know if a link is a deep link is to test it. If you tap a link and the app opens to a specific screen instead of the home screen, it was a deep link. If the app opens to the home screen or does not open at all, it was not.

When you share a link from inside an app, the app usually generates a deep link automatically. Most major apps — social media, shopping, streaming services — do this by default. Smaller or older apps may not.

Frequently Asked Questions

What happens if I tap a deep link but do not have the app installed?

The link usually opens in your web browser to a mobile version of the same content. Some apps are set up to redirect you to the app store instead. If the link was set up as a deferred deep link, the app store will open, and once you install and launch the app, it will take you to the right screen.

Can I create a deep link myself?

You cannot create a deep link to someone else's app — only the app developer can set that up. But you can share deep links that already exist. When you share content from an app, it usually generates a deep link automatically. You can copy and paste that link to send to others.

Why do some links open in the app and others open in the browser?

It depends on whether the link was set up as a deep link and whether your device recognizes it. If the app developer configured the link as a Universal Link or App Link, and your device supports it, the app will open. Otherwise, the link opens in your browser.

Do deep links work on desktop computers?

Deep links are designed for mobile apps, so they do not work on desktop. On a computer, a link to an app will open in your web browser to the website version instead. Some companies offer both a web version and an app version of the same service, so the link can work on both.

Can a deep link expire or break?

Yes. If the app developer removes the page the link points to, changes the app structure, or stops maintaining the deep link configuration, the link will stop working. This is why some links that worked before may no longer work after an app update.