Images not displaying on site (or in view source) after uploading them with ckeditor
The text format needs to allow &lt;img&gt; tags, otherwise they will be stripped out by default.

For example, add &lt;img&gt; to the allowed tags here:

admin/config/content/formats/filtered_html > "Limit allowed HTML tags"

Alternatively, try the "Full HTML" text format, if available and applicable as it will allow images by default.