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duo.nl

DNS Records

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Hosting & Network

duo.nl runs on AS1103, with email configured.

Hosting network
AS1103AS1103
Managed DNS
Self-hosted / other
Email
Configured
IPv6 (AAAA)
Enabled
CAA pinning
Set

Sits alongside 4,132 other sites on AS1103. Stable here since we started watching (Jul 19, 2026).

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

DNS Records for duo.nl

HostnameTypeTTLPriorityContent
duo.nlCAA00 issuewild digicert.com
duo.nlCAA00 issue digicert.com
duo.nlCAA00 issue www.pkioverheid.nl
duo.nlCAA00 issue quovadisglobal.com
duo.nlCAA00 issue certsign.ro
duo.nlCAA00 issue kpn.com
duo.nlCAA00 issue www.digicert.com
duo.nlA0194.171.77.135
duo.nlMX010grnms102.duo.nl
duo.nlMX010grnms101.duo.nl
duo.nlAAAA02001:67c:262c:860::135
duo.nlNS0ns3.surfnet.nl
duo.nlNS0ns1.surfnet.nl
duo.nlNS0ns1.zurich.surf.net
duo.nlNS0ns2.surfnet.nl
duo.nlSOA86400ns1.surfnet.nl postmaster.duo.nl 2025153681 1200 120 1209600 86400
duo.nlTXT0MS=2A35729DF7B6879605A380199134229FA98192DC
duo.nlTXT0e344b6293aaff980dacfdfca8d89a596c998a653ffc6da246984b5280553f353
duo.nlTXT0d365mktkey=Y2bbSTDjtCiPr1RmTDNbAt4t0K0xZ4voo8WTHuqtyhQx
duo.nlTXT08ZMdLGut+ODreQqgOL1z8ZPHCd32IZK5ee6DxdmpU/hZN9m7//YfHQhiDc9LcNQh1WZE9bbnbtsDyf2AGiFrQg==
duo.nlTXT0v=spf1 mx a ip4:62.112.225.180 ip4:89.221.178.154 ip4:212.159.201.77 ip4:212.159.201.78 include:spf.protection.outlook.com ~all
duo.nlTXT0kbE5rD5eSyaHC4KGPYtyK5pCrPFl3JLV1RvtjAkZolz8KyIMfpQEtYdL1kptnP0S
duo.nlTXT0apple-domain-verification=fFfN7j339skh0Mh1
duo.nlTXT0google-site-verification=Jo-BbRZ-__HSKjce2cgIuEUi9tJDMMeuwuEVpl3Am9o
duo.nlTXT0_jv1c8udejn31blgz6tm21crhud4cc4w
duo.nlTXT0google-site-verification=CUypQ0HV90dDVOrwS7D_vZ5NAk5lR02MgwbedEEYa1Y
duo.nlTXT0miro-verification=747ea291dc9933216b3ee89c85d886bb58e5ff2a
duo.nlTXT0google-site-verification=qbvg5XNKlJSM6IZoZS_DoWYYvVN1177Tbwgn6PzPVFA
duo.nlTXT0_j006jnihj6zmhuldygm2l4yyqb3s5vm
duo.nlTXT0cisco-ci-domain-verification=638367e007ac0876e9c860d9f73c3ed446324f61139de9b6cd0dc6c9900eea58
duo.nlTXT0d365mktkey=V2SPaBFMsv3Px7EpOMn0EMJiGZjfArbfR9eOKlOWfLAx
duo.nlTXT0cisco-ci-domain-verification=7720fd0785f14f8beee922a0084b84c2860b61ef66200ff3d739a4447472d9f4
duo.nlTXT034795ab8189f9058900af51f79e50414a2d9a007be11677d35d79d4ed8b6cedf
duo.nlTXT0d365mktkey=ZrTWozr5a3vpqbxt1Y3zYMwc3dTiPfefusQ5DUarTSUx
duo.nlTXT0093013cdf61fd81ceca2a8b82df8d689d4a14ee58dd6ceb2c6ee38dde8e54e64
duo.nlTXT0QuoVadis=25dc9442-0d2e-4179-afca-2f1a244a008c
www.duo.nlAAAA02001:67c:262c:860::135
www.duo.nlTXT0v=spf1 -all
www.duo.nlA0194.171.77.135

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DNS monitor showing the hosting provider, current A, MX, NS, and TXT records, and a history of MX and TXT changes

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DNS changes

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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