404 Errors

404 errors indicate a requested URL doesn't exist on the server, and they're one of the most common causes of failed or broken auto-posted content when they occur on an image, video, or link referenced inside an RSS feed. This tag covers how 404 errors specifically affect RSS-based automation and how to identify and resolve them at the source. The practical habit worth forming is to open the feed itself occasionally and click a couple of the image and link URLs. Anything returning a 404 there will fail everywhere downstream. The related broken image links tag covers what each destination does about it.