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atcoder.jp

DNS Records

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Hosting & Network

atcoder.jp runs on Amazon AWS, with DNS by AWS Route 53 and email via Google Workspace.

Hosting network
Amazon AWSAS16509Amazon AWS
Managed DNS
AWS Route 53
Email
Google Workspace
IPv6 (AAAA)
Not enabled
CAA pinning
None

Sits alongside 4,627,598 other sites on Amazon AWS. Stable here since we started watching (Oct 1, 2026).

DNS Records for atcoder.jp

HostnameTypeTTLPriorityContent
atcoder.jpA013.226.209.113
atcoder.jpA013.226.209.57
atcoder.jpA013.226.209.24
atcoder.jpA013.226.209.19
atcoder.jpSOA86400ns-96.awsdns-12.com awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
atcoder.jpNS0ns-1543.awsdns-00.co.uk
atcoder.jpNS0ns-890.awsdns-47.net
atcoder.jpNS0ns-96.awsdns-12.com
atcoder.jpNS0ns-1144.awsdns-15.org
atcoder.jpMX030aspmx5.googlemail.com
atcoder.jpMX030aspmx3.googlemail.com
atcoder.jpMX020alt2.aspmx.l.google.com
atcoder.jpMX030aspmx2.googlemail.com
atcoder.jpMX010aspmx.l.google.com
atcoder.jpMX020alt1.aspmx.l.google.com
atcoder.jpMX030aspmx4.googlemail.com
atcoder.jpTXT0stripe-verification=e726551d53f6bea6b1a960e876e9fd88c34f32b723a3b2ecb1a91dfc32fa531d
atcoder.jpTXT0pardot884953=58ccd91e72a6f94be7450fef89ee32f712f9e18afb5273954e7d09781c220ec1
atcoder.jpTXT0cloudflare_dashboard_sso=f62aac0af9122a7fff211950f317b6df
atcoder.jpTXT0MS=ms90685883
atcoder.jpTXT01password-site-verification=H3CJM364F5GI5P3VXH2PYFGCKI
atcoder.jpTXT0google-site-verification=iiXXCv8YJjdE0FWPz6zq0ispBt688ytJaOQfOpwuU3A
atcoder.jpTXT0google-site-verification=IIyyB5yMWakA7SnvZLuqk-eBDlEj647aY0Rq-c80uIg
atcoder.jpTXT0v=spf1 a:atcoder.jp include:_spf.google.com include:aspmx.pardot.com include:amazonses.com ~all

Get alerted the moment atcoder.jp's DNS changes

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Uptime

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DNS changes

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TLS certificate

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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