DNS Record Lookup

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

Hosting & Network

rubygems.org runs on Fastly, with email via Google Workspace.

Hosting network
FastlyAS54113Fastly
Managed DNS
Self-hosted / other
Email
Google Workspace
IPv6 (AAAA)
Enabled
CAA pinning
Set

Sits alongside 194,902 other sites on Fastly. Stable here since we started watching (Oct 9, 2026).

The apex and www are the same hosting — the apex via A records, www via a CNAME to rubygems.org.

DNS Records for rubygems.org

HostnameTypeTTLPriorityContent
rubygems.orgAAAA02a04:4e42::483
rubygems.orgAAAA02a04:4e42:400::483
rubygems.orgAAAA02a04:4e42:200::483
rubygems.orgAAAA02a04:4e42:600::483
rubygems.orgA0151.101.65.227
rubygems.orgA0151.101.129.227
rubygems.orgA0151.101.1.227
rubygems.orgA0151.101.193.227
rubygems.orgSOA300ns1.dnsimple-edge.com admin.dnsimple.com 1437324151 86400 7200 604800 300
rubygems.orgTXT0google-site-verification=Ho01fbRrBDhcMWimmKvs2TanAmWaHooeL-7UAFM0kVo
rubygems.orgTXT0_globalsign-domain-verification=GXpUUS49HB9rYWZEmxJFtZdS61weLMlf91w9Dn-5O0
rubygems.orgTXT0google-site-verification=5fGUpIiXLCxvLYCUjgTwwyl5eJvojl-XnrIik0wyZos
rubygems.orgTXT0v=spf1 include:sendgrid.net include:_spf.google.com -all
rubygems.orgTXT01password-site-verification=YODZFQOZUZBPVELHO32GVPLZ7Q
rubygems.orgMX01smtp.google.com
rubygems.orgNS0ns3.dnsimple-edge.io
rubygems.orgNS0ns4.dnsimple-edge.org
rubygems.orgNS0ns1.dnsimple-edge.com
rubygems.orgNS0ns2.dnsimple-edge.net
rubygems.orgCAA00 issue globalsign.com
rubygems.orgCAA00 issue comodoca.com
rubygems.orgCAA00 issuewild globalsign.com
rubygems.orgCAA00 issue letsencrypt.org
rubygems.orgCAA00 issuewild comodoca.com
rubygems.orgCAA00 issue amazonaws.com
www.rubygems.orgA0151.101.129.227
www.rubygems.orgA0151.101.193.227
www.rubygems.orgA0151.101.65.227
www.rubygems.orgA0151.101.1.227
www.rubygems.orgAAAA02a04:4e42:200::483
www.rubygems.orgAAAA02a04:4e42::483
www.rubygems.orgAAAA02a04:4e42:600::483
www.rubygems.orgAAAA02a04:4e42:400::483
www.rubygems.orgCNAME0rubygems.org
www.rubygems.orgCAA00 issue amazonaws.com
www.rubygems.orgCAA00 issue letsencrypt.org
www.rubygems.orgCAA00 issuewild globalsign.com
www.rubygems.orgCAA00 issue globalsign.com
www.rubygems.orgCAA00 issue comodoca.com
www.rubygems.orgCAA00 issuewild comodoca.com
www.rubygems.orgTXT0v=spf1 include:sendgrid.net include:_spf.google.com -all
www.rubygems.orgTXT01password-site-verification=YODZFQOZUZBPVELHO32GVPLZ7Q
www.rubygems.orgTXT0google-site-verification=5fGUpIiXLCxvLYCUjgTwwyl5eJvojl-XnrIik0wyZos
www.rubygems.orgTXT0google-site-verification=Ho01fbRrBDhcMWimmKvs2TanAmWaHooeL-7UAFM0kVo
www.rubygems.orgTXT0_globalsign-domain-verification=GXpUUS49HB9rYWZEmxJFtZdS61weLMlf91w9Dn-5O0
www.rubygems.orgSOA300ns1.dnsimple-edge.com admin.dnsimple.com 1437324151 86400 7200 604800 300
www.rubygems.orgNS0ns2.dnsimple-edge.net
www.rubygems.orgNS0ns1.dnsimple-edge.com
www.rubygems.orgNS0ns4.dnsimple-edge.org
www.rubygems.orgNS0ns3.dnsimple-edge.io
www.rubygems.orgMX01smtp.google.com

Get alerted the moment rubygems.org's DNS changes

This page is today's snapshot. Turn on monitoring and we'll watch rubygems.org 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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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