Alias Equals Zone? Large-Scale and Stealthy Takeover of Domain Hosting Service via CNAME-Following Cross-Domain Verification

1. The HostingEye directory contains code for detecting the hosting status of email services and web services of domains. The input file follows the format <alias>,<canonical>, where <alias> denotes the alias domain and <canonical> denotes the canonical domain.2. The cname_chain directory contains a dataset of CNAME relationships for popular domains and their subdomains. The file top-1m_sld_cname.csv includes CNAME mappings for second-level domains (SLDs), while top-1m_subdomain_cname.csv includes CNAME mappings for subdomains. Each line in these files follows the format <alias>,<canonical>, where <alias> is the alias domain and <canonical> is the canonical domain.