Our DNS check works by pulling all of the DNS records that your website's name server responds with and storing them. On the next check we'll look for differences. Some name servers can respond with dynamic records, which is often a popular load-balancing technique. Additionally, some providers such as Cloudflare mask the DNS records and can often change the IP address used to serve you based on a number of different factors. These can manifest themselves as your DNS records changing constantly, and our system will flag these as changes. If you're encountering these issues you should disable the DNS change checks.