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Hosting & Network

sievert.de runs on AS25291, with email via Microsoft 365.

Hosting network
AS25291AS25291
Managed DNS
Self-hosted / other
Email
Microsoft 365
IPv6 (AAAA)
Not enabled
CAA pinning
None

Sits alongside 672 other sites on AS25291. Stable here since we started watching (Oct 21, 2026).

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

DNS Records for sievert.de

HostnameTypeTTLPriorityContent
sievert.deMX0sievert-de.mail.protection.outlook.com
sievert.deNS0sec.avency.de
sievert.deNS0ns.kunden.de
sievert.deNS0theopolis.avency.de
sievert.deA0185.56.129.52
sievert.deSOA86400theopolis.avency.de postmaster.theopolis.avency.de 2026102201 28800 7200 604800 86400
sievert.deTXT0ttxcqlsfck9x6jhyc5npq779qtfg24s0
sievert.deTXT0apple-domain-verification=jW2FTZLVSxSecxUB
sievert.deTXT0wftmtl2hlgxxvf6cdprvb0q68c2x58gt
sievert.deTXT0google-site-verification=IscqoWN8ByaZm_KMK050G0ZNK7FmVLtpTdWVMzDmm4M
sievert.deTXT0google-site-verification=CMtNlKnGtFx6DmMoeYvCqDM_RD985r09Y7Gzo46b7_0
sievert.deTXT0teamviewer-sso-verification=87006b0662f144dfb363ab776c504b17
sievert.deTXT0ms-domain-verification=d6c57edc-afc5-411b-af66-974aa1619f4c
sievert.deTXT0MS=ms89606652
sievert.deTXT0atlassian-domain-verification=ICF7jVJJZA0Uz3W4C/LodByaauG/60zxOczOZw8O0hOYUJgyBz/5Y53BCUVY7006
sievert.deTXT0ms-domain-verification=3f3c4d8e-c4ca-4156-99fe-2e0bdd103e10
sievert.deTXT0atlassian-sending-domain-verification=ba18ff9a-83e8-468c-901e-84ac31190313
sievert.deTXT0v=spf1 mx a ip4:172.16.239.18 ip4:172.16.239.20 a:mx.sievert-ag.de ip4:46.183.40.231 ip4:195.60.121.75 ip4:172.16.34.61 ip4:172.16.239.13 ip4:46.183.41.31 include:spf.protection.outlook.com include:spf.eu.signature365.net include:spfv4.sosafe.de ip6:2a01:4f8:10a:22a2::2 ip4:194.165.193.19 ip4:23.90.123.91 a:mail.logo-consult.org ip4:195.8.121.0/24 ip4:195.8.122.0/24 ip4:195.8.123.0/24 ip4:193.104.146.0/24 ip4:195.8.122.228 include:spf.brevo.com ip4:195.16.75.0/24 ip4:78.46.1.193 ip4:212.101.206.91 include:spfv6.sosafe.de ip4:37.46.102.178 ip4:212.100.42.108 ip4:62.159.128.34 ip4:35.204.8.114 ip4:195.16.75.249 ip4:195.16.75.250 -all
sievert.deTXT0MS=ms71083202
sievert.deTXT0_w8nmcb78gi9iar8kfj1p80xypggbs09
sievert.deTXT0brevo-code:d7ba6270e52292b468a3ec137d8d7ac2
sievert.deTXT0miro-verification=e416152e7e840b9082e88b9550217c5791043aaf
www.sievert.deA0185.56.129.52
www.sievert.deMX0sievert-de.mail.protection.outlook.com
www.sievert.deSOA86400theopolis.avency.de postmaster.theopolis.avency.de 2026102201 28800 7200 604800 86400
www.sievert.deCNAME0sievert.de
www.sievert.deNS0ns.kunden.de
www.sievert.deNS0theopolis.avency.de
www.sievert.deNS0sec.avency.de
www.sievert.deTXT0_w8nmcb78gi9iar8kfj1p80xypggbs09
www.sievert.deTXT0MS=ms89606652
www.sievert.deTXT0MS=ms71083202
www.sievert.deTXT0google-site-verification=IscqoWN8ByaZm_KMK050G0ZNK7FmVLtpTdWVMzDmm4M
www.sievert.deTXT0atlassian-domain-verification=ICF7jVJJZA0Uz3W4C/LodByaauG/60zxOczOZw8O0hOYUJgyBz/5Y53BCUVY7006
www.sievert.deTXT0v=spf1 mx a ip4:172.16.239.18 ip4:172.16.239.20 a:mx.sievert-ag.de ip4:46.183.40.231 ip4:195.60.121.75 ip4:172.16.34.61 ip4:172.16.239.13 ip4:46.183.41.31 include:spf.protection.outlook.com include:spf.eu.signature365.net include:spfv4.sosafe.de ip6:2a01:4f8:10a:22a2::2 ip4:194.165.193.19 ip4:23.90.123.91 a:mail.logo-consult.org ip4:195.8.121.0/24 ip4:195.8.122.0/24 ip4:195.8.123.0/24 ip4:193.104.146.0/24 ip4:195.8.122.228 include:spf.brevo.com ip4:195.16.75.0/24 ip4:78.46.1.193 ip4:212.101.206.91 include:spfv6.sosafe.de ip4:37.46.102.178 ip4:212.100.42.108 ip4:62.159.128.34 ip4:35.204.8.114 ip4:195.16.75.249 ip4:195.16.75.250 -all
www.sievert.deTXT0ms-domain-verification=d6c57edc-afc5-411b-af66-974aa1619f4c
www.sievert.deTXT0ttxcqlsfck9x6jhyc5npq779qtfg24s0
www.sievert.deTXT0teamviewer-sso-verification=87006b0662f144dfb363ab776c504b17
www.sievert.deTXT0atlassian-sending-domain-verification=ba18ff9a-83e8-468c-901e-84ac31190313
www.sievert.deTXT0wftmtl2hlgxxvf6cdprvb0q68c2x58gt
www.sievert.deTXT0ms-domain-verification=3f3c4d8e-c4ca-4156-99fe-2e0bdd103e10
www.sievert.deTXT0brevo-code:d7ba6270e52292b468a3ec137d8d7ac2
www.sievert.deTXT0miro-verification=e416152e7e840b9082e88b9550217c5791043aaf
www.sievert.deTXT0apple-domain-verification=jW2FTZLVSxSecxUB
www.sievert.deTXT0google-site-verification=CMtNlKnGtFx6DmMoeYvCqDM_RD985r09Y7Gzo46b7_0

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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