Capture the image URL pattern without exposing private tokens, the visible error or response code, and the time it occurred. State whether the page itself loads and whether thumbnails, full-size images, or all media are affected. Try one other network or browser if practical, then compare results.
Do not paste signed URLs, session cookies, or private image content into a public post. If the same error repeats, record its frequency and whether it happens on the same files. Check official incident information before assigning a cause such as CDN failure. A precise, safe example is more actionable than “images are broken.”