This document outlines several common challenges that web developers face, including browser compatibility, user experience, performance and speed, scaling websites, security, third-party integrations, and maintenance and support. It discusses specific issues under each challenge such as cross-browser compatibility errors, enhancing the user experience through design, measuring performance with tools from Google and others, problems that arise from scaling like search, concurrency, and consistency issues, various security vulnerabilities, technology differences with third-party integrations, and preventing downtime and bugs during maintenance. The document concludes that while these are common challenges, every business has unique requirements that lead to their own specific challenges as well.
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