Reverse DNS Lookup: PTR Records Explained
Learn what reverse DNS is, what PTR records do, and how to find a hostname from an IP address.
Read ArticleLearn what reverse DNS is, what PTR records do, and how to find a hostname from an IP address.
Read ArticleWhat a PTR record is, where it lives (in-addr.arpa / ip6.arpa), and when it matters for email and security.
Read ArticleWhat an IP address can reveal, what it usually can't, and how to reduce IP-based tracking risk.
Read ArticleUnderstand what WHOIS is used for, what it can show, and how it differs from a typical IP lookup.
Read ArticleLearn what ASNs are, how BGP routing uses them, and why ASN/ISP shows up in IP tracking tools.
Read ArticleA simple explanation of CIDR, prefix lengths, and why IP ranges and routing use slash notation.
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