+ Search a GitHub username and jump into a focused profile analysis flow. +
++ Checks whether the requested GitHub account exists before navigation. +
++ Keeps the landing page centered around one simple search action. +
++ Enter a GitHub username in the search box above to verify the account and open the + generated Gityzer profile page. +
++ Use the search field with any public GitHub username. If the account exists, Gityzer + routes to the username page for deeper profile exploration. +
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