I’ve noticed when working on larger sites with multiple authors one of the most common things to slip through the cracks is setting a featured image. While this shouldn’t break your theme, it can create layout inconsistencies or (shudder) broken images. Lucky for us, we can easily provide a fallback, and I’ll tell you how….
You can capture as much information you want. Once you get to know where your website users are hitting 404 or broken links you can easily fix those errors and provide a good user experience….