One common web development mistake is neglecting responsive design. Many developers focus only on desktop layouts, overlooking how the site appears on mobile devices. This leads to poor user experiences and high bounce rates. Equally problematic is excessive reliance on JavaScript without graceful degradation, which can break functionality for users with slow connections or disabled scripts. Another frequent error is ignoring performance optimization. Large images, unminified code, and too many third-party scripts can significantly slow down a site. Developers also often overlook accessibility, excluding users with disabilities. Building inclusive, fast, and responsive websites should be a priority, not an afterthought. visit: https://www.iroidtechnologies.com/hire-a-developer/hire-web-developer