DNS Record Lookup

Look up DNS records including A, AAAA, MX, NS, SOA, CNAME, TXT, and CAA records for any domain

Hosting & Network

neetcode.io runs on Fastly, with DNS by Google and email via Google Workspace.

Hosting network
FastlyAS54113Fastly
Managed DNS
Google
Email
Google Workspace
IPv6 (AAAA)
Enabled
CAA pinning
None

Sits alongside 4,999+ other sites on Fastly. Stable here since we started watching (Jul 17, 2026).

The apex and www are the same hosting — the apex via A records, www via a CNAME to neetcode-dd170.web.app.

DNS Records for neetcode.io

HostnameTypeTTLPriorityContent
neetcode.ioA0199.36.158.100
neetcode.ioAAAA02620:0:890::100
neetcode.ioSOA300ns-cloud-e1.googledomains.com cloud-dns-hostmaster.google.com 17 21600 3600 259200 300
neetcode.ioMX01smtp.google.com
neetcode.ioTXT0google-site-verification=8HiE15NCiCuYIZ9e0DPBbCUCyxPGhNtR5jUM-Em8D2o
neetcode.ioTXT0linkedin-site-verification=8256b6ae-5221-4def-b2f8-23afe1607df9
neetcode.ioTXT0google-site-verification=yWZry6C8ADqzQY0buB30EDfu7IIqVnjqbgDFA1u79Qw
neetcode.ioNS0ns-cloud-e3.googledomains.com
neetcode.ioNS0ns-cloud-e1.googledomains.com
neetcode.ioNS0ns-cloud-e4.googledomains.com
neetcode.ioNS0ns-cloud-e2.googledomains.com
www.neetcode.ioCNAME0neetcode-dd170.web.app
www.neetcode.ioA0199.36.158.100
www.neetcode.ioAAAA02620:0:890::100

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Beta

Answers use the live DNS records shown on this page. AI-generated — double-check anything important.

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This page is today's snapshot. Turn on monitoring and we'll watch neetcode.io continuously, notifying you the moment anything moves across all three signals:

Uptime

We visit the site from multiple regions worldwide and email you within minutes if it goes down, with a per-region breakdown so a real outage stands out from a regional blip.

DNS changes

We watch NS, MX, CAA, DNSSEC, CNAME and A/AAAA records, and identify the host, network, and ASN behind them, so a real migration or hijack stands out from routine noise.

TLS certificate

We warn you 30, 14, 7, and 1 days before it expires, and flag it if the issuing authority changes or the certificate is unexpectedly replaced.

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About DNS Records

DNS (Domain Name System) records are instructions that provide information about a domain, including its IP addresses, mail servers, and other services. Common record types include:

  • SOA (Start of Authority) - Contains administrative information about the zone
  • NS (Nameserver) - Specifies authoritative nameservers for the domain
  • A (Address) - Maps a domain to an IPv4 address
  • AAAA - Maps a domain to an IPv6 address
  • CNAME (Canonical Name) - Creates an alias pointing to another domain
  • MX (Mail Exchange) - Specifies mail servers for the domain