DNS Record Lookup

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

cyrusone.com

DNS Records

WhoisRDAPDNS RecordsCertificateUptimeDiagnosticsHistoryHide Contact Info

Hosting & Network

cyrusone.com runs on Cloudflare, with email via Mimecast.

Hosting network
CloudflareAS209242Cloudflare
Managed DNS
Self-hosted / other
Email
Mimecast
IPv6 (AAAA)
Not enabled
CAA pinning
None

Sits alongside 4,999+ other sites on Cloudflare. Stable here since we started watching (Jul 25, 2026).

DNS Records for cyrusone.com

HostnameTypeTTLPriorityContent
cyrusone.comNS0dns1.cyrusone.com
cyrusone.comNS0dns4.cyrusone.com
cyrusone.comNS0dns3.cyrusone.com
cyrusone.comNS0dns2.cyrusone.com
cyrusone.comMX010us-smtp-inbound-2.mimecast.com
cyrusone.comMX010us-smtp-inbound-1.mimecast.com
cyrusone.comSOA86400dns1.cyrusone.com support.cyrusone.com 2016030588 3600 3600 604800 86400
cyrusone.comA0199.60.103.169
cyrusone.comA0199.60.103.69
cyrusone.comTXT0atlassian-domain-verification=9adAqHrkAPLIw5cdEQxKnzcFpsz/smkMPMgnbAKcQkoSHyn3RHoZs7pdwQ4ZoKTY
cyrusone.comTXT0google-site-verification=JVt_IJpI88iUI4EfmlQhxBu1p_9liiZCQzAj3et_ssc
cyrusone.comTXT0v=DMARC1; p=none; rua=mailto:dmarc_rua@emaildefense.proofpoint.com; ruf=mailto:dmarc_ruf@emaildefense.proofpoint.com;fo=1
cyrusone.comTXT0FfvsQEqHw2dazXJOrPrRfhVpevbR7MsOGmo0H+dEGX0ntaTgD2xp7F+BIqyAXVTozAmS3Vj7YtJ1NDAdj2QlZg==
cyrusone.comTXT0miro-verification=a1706fa17a5a0baee9ac37dfb74f97ca968bb71a
cyrusone.comTXT0anthropic-domain-verification-e95573=wtPyNSTd8Aaks7LjP5C91UNch
cyrusone.comTXT0apple-domain-verification=A5ibADYxmOmEkW9C
cyrusone.comTXT0google-site-verification=ZjFPRpLAA8HwxbtatEgL5j3emGsbtvbdZqFNnJwt4XI
cyrusone.comTXT0jamf-site-verification=7wQwe8lfHsxGv_5R49Nevw
cyrusone.comTXT00ed1fe018a6b32c778a5b04fa6ab83b95b59f7223c
cyrusone.comTXT0teamviewer-sso-verification=de88b3c6935740eda2d799db57f06479
cyrusone.comTXT0v=spf1 include:us._netblocks.mimecast.com include:spf.protection.outlook.com include:_spf.salesforce.com include:asp-spf1.yardi.com include:asp-spf2.yardi.com include:spf.us1.defend.egress.com ip4:216.117.89.100 ip4:216.117.89.101 ip4:192.254.125.211 ip4:216.244.113.55 ip4:208.185.229.0/24 ip4:208.185.235.0/24 ip4:148.59.108.0/23 ip4:148.59.106.0/23 ip4:103.28.42.0/24 ip4:146.88.28.0/24 ip4:203.55.21.0/24 ip4:204.75.142.0/24 ip4:167.89.106.151 a:b.spf.service-now.com a:c.spf.service-now.com a:d.spf.service-now.com include:servers.mcsv.net ip4:3.93.157.0/24 ip4:3.210.190.0/24 ip4:18.208.124.128/25 ip4:54.174.52.0/24 ip4:54.174.53.128/30 ip4:54.174.57.0/24 ip4:54.174.59.0/24 ip4:54.174.60.0/23 ip4:54.174.63.0/24 ip4:139.180.17.0/24 ip4:143.244.80.0/20 ip4:158.247.16.0/20 ~all
cyrusone.comTXT0docusign=eeef520c-1c76-47bf-91af-a7dc9c4204ec
cyrusone.comTXT0openai-domain-verification=dv-oDdfp6zfxtQkm2Xps41E2Ocv
cyrusone.comTXT0google-gws-recovery-domain-verification=61327064
cyrusone.comTXT0MS=ms89500588
www.cyrusone.comCNAME040201568.group18.sites.hubspot.net
www.cyrusone.comAAAA02606:2c40::c73c:67e1
www.cyrusone.comAAAA02606:2c40::c73c:671f
www.cyrusone.comA0199.60.103.31
www.cyrusone.comA0199.60.103.225

What's up with DNS →

Our daily roundup of the most interesting DNS changes across the web — hosting and CDN migrations, network moves, and security-config shifts.

Ask about cyrusone.com

Beta

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

Get alerted the moment cyrusone.com's DNS changes

This page is today's snapshot. Turn on monitoring and we'll watch cyrusone.com 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.

Monitor DNS free

Free for your first domain: uptime, DNS, and certificate together. No credit card.

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