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URL Shortener

A service that creates short aliases for long URLs, making them easier to share and track clicks.

Web ToolsAlso called: "link shortener", "short url"

URL shorteners map long URLs to concise codes for convenience and analytics.

How they work

  1. User submits long URL.
  2. Service generates unique short code.
  3. Code maps to original URL in database.
  4. Redirect requests resolve short URL to original.

Popular services

  • bit.ly, TinyURL, goo.gl (discontinued)
  • Custom branded shorteners (yourbrand.link)

Benefits

  • Easier to share on social media (character limits).
  • Cleaner appearance in print materials.
  • Click tracking and analytics.
  • A/B testing different destinations.
  • QR code generation.

Security risks

  • Obscured destination: Can't see where link goes.
  • Link rot: Short links may expire.
  • Phishing: Attackers hide malicious URLs.
  • Tracking: Analytics reveal who clicks when.

Best practices

  • Preview links before clicking (many services offer +preview).
  • Use reputable shorteners with abuse detection.
  • Set appropriate expiration for time-sensitive campaigns.
  • Monitor short links for hijacking.