Deep Link Doctor
● Free · runs in your browser

Is your campaign link set up right?

Paste a website, Play Store or App Store link. See every tracking tag in plain English and catch the mistakes that make installs and visits show up as "direct" or "organic".

Try an example:
Diagnosis Waiting for a link
    What's in this link

    Nothing is sent anywhere. The checks run in this page.

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    WebsiteUTM builderBuild a clean, consistent campaign link for any web page. AppsApp store link builderPlay Store links with UTMs in the referrer, and App Store campaign links.
    Link problems

    The mistakes that break tracking most often

    Each one explains what goes wrong and how to fix it.

    App Store App Store downloads don't show up by campaignThe App Store ignores UTM tags; it reports campaigns through a provider token (pt) and a campaign token (ct) of up to 30 characters.Links The link has more than one question markOnly the first ? starts the tracking part of a link, so a second ? turns the next tag into part of a value and it's lost.Links A link you're sharing contains an ad click IDClick IDs such as gclid and fbclid belong to one ad click, so copying them into a link you share ties every visitor to that one click.Apps App link only works if the app is installedLinks that start with an app's own scheme, such as myapp, open an app that is already installed, but show an error to everyone else.UTM The same UTM tag appears twice in a linkA link with two utm_source or utm_campaign values gives reports a choice, and you can't be sure which one they keep.Links Campaign link uses http instead of httpsAn http link usually has to redirect to https, and each redirect is one more chance for tracking tags to be dropped.Links The campaign link has spaces in itA space isn't allowed in a web address, so links with spaces get cut short, encoded differently or split in two.Apps App links open the website inside InstagramInstagram, Facebook, TikTok and LinkedIn open links in their own in-app browsers, which often show your website instead of opening your app.

    All link problems →

    FAQ

    Common questions

    What are UTM parameters?

    UTM parameters are tags added to the end of a link, such as utm_source and utm_campaign, that tell analytics tools where a visit came from. They let you see which campaign, channel and ad brought each visitor.

    Which UTM parameters are required?

    Use utm_source, utm_medium and utm_campaign on every campaign link. utm_term and utm_content are optional and help you compare keywords or ad variants.

    Are UTM values case-sensitive?

    Yes. Analytics tools usually treat Instagram and instagram as two different sources, so pick lowercase and stick to it.

    Is my link sent anywhere when I check it?

    No. The checker runs in your browser, so the link you paste never leaves your device.

    Do UTM tags work on App Store and Play Store links?

    Not directly. On Google Play, UTM tags go inside the referrer parameter. The App Store ignores UTM tags; it uses its own campaign token (ct) and provider token (pt).

    Why do my UTM tags disappear?

    Usually a redirect drops them, they sit after a # in the link, or the link has a second question mark. Paste the final address from the browser into the checker to see.