LinkLint

When a web link does not open an app as expected, the problem may be in the website association file, app identity, URL rules, or network response. LinkLint brings those checks into one clear report. Enter a domain or issuer to see what passed, what needs attention, and the evidence behind every result. Built for release checks and troubleshooting • Check whether AASA is reachable and whether its app declarations and Universal Links rules are valid • Review app identifiers, certificate fingerprints, and website-declared URL matching rules in assetlinks.json • Test URL paths, queries, fragments, and exclusions with a step-by-step matching trace • Inspect issuers, endpoints, capabilities, and security settings in OIDC Discovery and OAuth authorization server metadata Turn each result into a useful next step Every issue explains what happened, why it matters, likely causes, and what to…