How Short.io (Branded URL Shortener) Redirection Works
Short.io enables businesses to create custom short links with mobile deep linking and password protection. IncogSay audits Short.io redirects without triggering tracking beacons.
Evaluates HTTP 301 headers and unpacks deep-link URL schemas including app:// and intent:// protocols used by Short.io's mobile deep linking feature. IncogSay resolves the web fallback URL when deep link schemas are present, reporting the mobile destination and the desktop fallback separately.
Security & Phishing Risks Associated with Short Links
Frequently Asked Questions
How do I unshorten a Short.io link?
Submit the link to IncogSay's Redirect Checker above to view the full destination route.
What is mobile deep linking in Short.io?
Mobile deep linking allows a Short.io link to open a specific page within a mobile app instead of the website. If the app is not installed, the link falls back to a web URL. IncogSay resolves and reports both the app destination and the web fallback.
Can Short.io links be password protected?
Yes. Short.io supports optional password protection for links. Attackers use this to prevent automated security scanners from tracing the redirect. If you receive an unsolicited password-protected short link, treat it with high suspicion.
Does Short.io track who clicks a link?
Yes — Short.io logs click analytics including IP address, browser, country, and device type by default. Clicking a Short.io link shares your browsing metadata with the link creator.
What redirect code does Short.io use?
Short.io uses HTTP 301 Moved Permanently for standard links. Deep link redirects may use a different method depending on the mobile platform's handling of custom URI schemas.
Is Short.io commonly used in phishing campaigns?
Less commonly than high-volume free services like Bitly, but it appears in targeted attacks against businesses, particularly where an attacker wants a branded short domain to lower the target's guard.