DNS Record Lookup

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

Hosting & Network

cpprefjp.github.io is hosted on GitHub Pages, served over Fastly.

Platform
GitHub Pages
Hosting network
FastlyAS54113Fastly
Managed DNS
Self-hosted / other
Email
None
IPv6 (AAAA)
Enabled
CAA pinning
Set

Sits alongside 4,999+ other sites on Fastly. Stable here since we started watching (Jul 20, 2026).

The apex and www are the same hosting — the apex via A records.

DNS Records for cpprefjp.github.io

HostnameTypeTTLPriorityContent
cpprefjp.github.ioA0185.199.110.153
cpprefjp.github.ioA0185.199.109.153
cpprefjp.github.ioA0185.199.111.153
cpprefjp.github.ioA0185.199.108.153
cpprefjp.github.ioAAAA02606:50c0:8001::153
cpprefjp.github.ioAAAA02606:50c0:8000::153
cpprefjp.github.ioAAAA02606:50c0:8003::153
cpprefjp.github.ioAAAA02606:50c0:8002::153
cpprefjp.github.ioCAA00 issuewild digicert.com
cpprefjp.github.ioCAA00 issue letsencrypt.org
cpprefjp.github.ioCAA00 issue digicert.com
cpprefjp.github.ioCAA00 issuewild sectigo.com
cpprefjp.github.ioCAA00 issuewild letsencrypt.org
cpprefjp.github.ioCAA00 issue sectigo.com
www.cpprefjp.github.ioA0185.199.110.153
www.cpprefjp.github.ioA0185.199.109.153
www.cpprefjp.github.ioA0185.199.111.153
www.cpprefjp.github.ioA0185.199.108.153
www.cpprefjp.github.ioCAA00 issue letsencrypt.org
www.cpprefjp.github.ioCAA00 issue digicert.com
www.cpprefjp.github.ioCAA00 issuewild digicert.com
www.cpprefjp.github.ioCAA00 issuewild letsencrypt.org
www.cpprefjp.github.ioCAA00 issue sectigo.com
www.cpprefjp.github.ioCAA00 issuewild sectigo.com
www.cpprefjp.github.ioAAAA02606:50c0:8000::153
www.cpprefjp.github.ioAAAA02606:50c0:8002::153
www.cpprefjp.github.ioAAAA02606:50c0:8001::153
www.cpprefjp.github.ioAAAA02606:50c0:8003::153

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Beta

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

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