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Hosting & Network

cergy.fr runs on AS41653, with email via Microsoft 365.

Hosting network
AS41653AS41653
Managed DNS
Self-hosted / other
Email
Microsoft 365
IPv6 (AAAA)
Not enabled
CAA pinning
None

Sits alongside 727 other sites on AS41653. Stable here since we started watching (Oct 22, 2026).

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

DNS Records for cergy.fr

HostnameTypeTTLPriorityContent
cergy.frA095.128.47.17
cergy.frNS0ns1-b.nadns1.com
cergy.frNS0ns1-a.nadns1.fr
cergy.frNS0ns1-c.nadns1.com
cergy.frSOA7200ns1-a.nadns1.fr technical.nameshield.net 2026102318 28800 7200 604800 7200
cergy.frTXT0brevo-code:570776728e042ef29a322bb13bce6cc8
cergy.frTXT0brevo-code:823f16cc995e0a525e3bfa55cc05ffb6
cergy.frTXT0brevo-code:46a17eb8452b40388e4236a2df3f33b4
cergy.frTXT0brevo-code:ad191f3c18fe3216a69f35b8da492b01
cergy.frTXT0MS=ms88744329
cergy.frTXT0brevo-code:b938079d678bb4f164f39b952cc7f20a
cergy.frTXT0sophos-domain-verification=2f18dea0be3b0bb7fc8e9c45eacf14640dbe907a
cergy.frTXT0Sendinblue-code:823f16cc995e0a525e3bfa55cc05ffb6
cergy.frTXT0brevo-code:86548101f1dbf317c2f353f2946462e2
cergy.frTXT0brevo-code:51686d88afcf389f4b90e0a536330130
cergy.frTXT0v=spf1 include:spf.protection.outlook.com include:spf_icodia.cacp.fr include:spf.brevo.com ip4:213.32.80.195 -all
cergy.frTXT0brevo-code:550c35493ffeee7ca6b962d45283ca20
cergy.frTXT0sophos-domain-verification=32445fd4e31b1fbb2bc51f766f49ce6d91b13da9065ed515bc3bc207d84a10f4
cergy.frMX0cergy-fr.mail.protection.outlook.com
www.cergy.frA095.128.47.17
www.cergy.frNS0ns1-c.nadns1.com
www.cergy.frNS0ns1-b.nadns1.com
www.cergy.frNS0ns1-a.nadns1.fr
www.cergy.frCNAME0cergy.fr
www.cergy.frSOA7200ns1-a.nadns1.fr technical.nameshield.net 2026102318 28800 7200 604800 7200
www.cergy.frTXT0Sendinblue-code:823f16cc995e0a525e3bfa55cc05ffb6
www.cergy.frTXT0brevo-code:570776728e042ef29a322bb13bce6cc8
www.cergy.frTXT0MS=ms88744329
www.cergy.frTXT0brevo-code:ad191f3c18fe3216a69f35b8da492b01
www.cergy.frTXT0brevo-code:86548101f1dbf317c2f353f2946462e2
www.cergy.frTXT0brevo-code:46a17eb8452b40388e4236a2df3f33b4
www.cergy.frTXT0sophos-domain-verification=2f18dea0be3b0bb7fc8e9c45eacf14640dbe907a
www.cergy.frTXT0brevo-code:51686d88afcf389f4b90e0a536330130
www.cergy.frTXT0brevo-code:823f16cc995e0a525e3bfa55cc05ffb6
www.cergy.frTXT0v=spf1 include:spf.protection.outlook.com include:spf_icodia.cacp.fr include:spf.brevo.com ip4:213.32.80.195 -all
www.cergy.frTXT0brevo-code:550c35493ffeee7ca6b962d45283ca20
www.cergy.frTXT0sophos-domain-verification=32445fd4e31b1fbb2bc51f766f49ce6d91b13da9065ed515bc3bc207d84a10f4
www.cergy.frTXT0brevo-code:b938079d678bb4f164f39b952cc7f20a
www.cergy.frMX0cergy-fr.mail.protection.outlook.com

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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