I found this question is asking a tool that can provide details of quick updates/changes of some other websites to OP. As asking a tool is off-topic in Pro Webmasters. Can I flag this post as Off-topic? Why am I asking this question is that question was asked three years back and have an accepted answer. I don't know weather I can flag such questions?
Recommendations for sites and resources -- Questions that ask for recommendations of external websites or resources attract lots of self promotion and spam answers. In addition, answers to such questions quickly become out of date. Such questions are closed as off-topic.