Don't underestimate broken images
I’d suggest you never underestimate how many problems broken images can cause on your website. It is a perfect combination of hindering organic visibility and potentially annoying users. I’d get into the habit of running regular crawls on your website, one side note is that if you are running regular crawls, ensuring it is taking place outside of busy times. The crawlers can make your website go slower depending on how indepth it is, if you couple this with high users and high resources due to crawl, it can bring your site speed down temporarily. If you need any support with running regular crawls, please do have a read and drop me a line about our technical SEO audit services.