There are two easy ways to see if an image on a website has alt text. You can turn on your own screen reader, or "Inspect" the page's HTML code to see what alt text has been assigned to the image.

Mitmproxy is currently the gold standard for inspecting TLS-encrypted app, web, and IoT device network traffic. J.M. Porup got his start in security working as a Linux sysadmin in 2002.