DNS Lookup

DNS Results:
sliceapp.info

104.21.64.1
104.21.80.1
104.21.48.1
104.21.16.1
104.21.96.1
104.21.32.1
104.21.112.1
undefined (priority: undefined)
sliceapp-info.mail.protection.outlook.com (priority: 0)
v=spf1 include:spf.efwd.registrar-servers.com include:spf.protection.outlook.com ~all
MS=ms72479406
abdullah.ns.cloudflare.com
katja.ns.cloudflare.com
{
  "A": [
    "104.21.64.1",
    "104.21.80.1",
    "104.21.48.1",
    "104.21.16.1",
    "104.21.96.1",
    "104.21.32.1",
    "104.21.112.1"
  ],
  "CNAME": {
    "error": {
      "code": "ENODATA",
      "syscall": "queryCname",
      "hostname": "sliceapp.info"
    }
  },
  "MX": [
    {
      "exchange": "sliceapp-info.mail.protection.outlook.com",
      "priority": 0
    }
  ],
  "TXT": [
    [
      "v=spf1 include:spf.efwd.registrar-servers.com include:spf.protection.outlook.com ~all"
    ],
    [
      "MS=ms72479406"
    ]
  ],
  "NS": [
    "abdullah.ns.cloudflare.com",
    "katja.ns.cloudflare.com"
  ]
}

Frequently Asked Questions

What is DNS?

DNS (Domain Name System) translates human-readable domain names (e.g., www.example.com) into machine-readable IP addresses (e.g., 192.168.1.1), enabling users to access websites using names instead of numbers.

How does DNS work?

  • Your device queries a DNS resolver.
  • The resolver checks its cache or queries root servers → TLD servers → authoritative servers.
  • The authoritative server provides the IP address, which is sent back to your device.

Common DNS Records

  • A: Maps a domain to an IPv4 address.
  • AAAA: Maps a domain to an IPv6 address.
  • CNAME: Aliases one domain to another.
  • MX: Specifies mail servers for email.
  • TXT: Stores text (e.g., for verification or SPF).
  • NS: Identifies authoritative DNS servers.

Key DNS Concepts

  • Resolver: Intermediary server that queries DNS on your behalf.
  • TLD: The last part of a domain (e.g., .com, .org).
  • Authoritative Server: Holds the official DNS records for a domain.
  • Caching: Temporarily stores DNS results to speed up future queries.
  • DNSSEC: Adds cryptographic security to DNS to prevent attacks.

Common DNS Issues

  • Propagation Delay: Time for DNS changes to update globally (up to 48 hours).
  • DNS Leak: DNS queries exposed to your ISP, even when using a VPN.
  • Hijacking: Malicious redirection of DNS queries to fake servers.

Why is DNS Important?

DNS is essential for the internet to function, allowing users to access websites and services using easy-to-remember names instead of numerical IP addresses.