Some of comcast's DNS resolvers must be confused. I get different results each time I make a query: $ dig @75.75.75.75 blog.lacour.me QUERY: 1, ANSWER

Some of comcast's DNS resolvers must be confused. I get different results each time I make a query: $ dig @75.75.75.75 blog.lacour.me QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0 {{ no answer }} $ dig @75.75.75.75 blog.lacour.me QUERY: 1, ANSWER: 3, AUTHORITY: 0, ADDITIONAL: 0 blog.lacour.me. 75275 IN CNAME silvrback.herokuapp.com. silvrback.herokuapp.com. 156 IN CNAME us-east-1-a.route.herokuapp.com. us-east-1-a.route.herokuapp.com. 30 IN A 23.23.208.103