We are trying to turn on the AEM link checker and I am seeing some strange behavior. If I create a new page in Sites and make any change to it e.g. add a new component or edit the properties dialog then the page itself will show up in the link checker e.g.
However any links I add to the page are never shown in the link checker. This is on AEM 6.5.0 and seems to occur on our custom pages and also on We.Retail (image attached)
You can setup a DEBUG logger on "com.day.cq.rewriter.linkchecker" to get more info on why the links are not included and when does AEM check for new links.
As mentioned above, please open this Config in OSGi Configuration "Day CQ Link Checker Transformer" and make sure "Disable Checking" field should be unchecked.