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optistepusa.com

DNS Records

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Hosting & Network

optistepusa.com runs on AS12741, with email via Microsoft 365.

Hosting network
AS12741AS12741
Managed DNS
Self-hosted / other
Email
Microsoft 365
IPv6 (AAAA)
Not enabled
CAA pinning
Set

Sits alongside 296 other sites on AS12741. Stable here since we started watching (Jul 21, 2026).

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

DNS Records for optistepusa.com

HostnameTypeTTLPriorityContent
optistepusa.comMX0optistepusa-com.mail.protection.outlook.com
optistepusa.comNS0ns2.fakro.pl
optistepusa.comNS0ns1.fakro.pl
optistepusa.comSOA86400ns1.fakro.pl hostmaster.fakro.pl 2026062402 28800 7200 604800 86400
optistepusa.comA0213.216.83.221
optistepusa.comCAA00 iodef mailto:cca@fakro.info
optistepusa.comCAA00 issue letsencrypt.org
optistepusa.comCAA00 issuewild letsencrypt.org
optistepusa.comTXT0MS=ms53271952
optistepusa.comTXT0v=spf1 a mx ip4:37.128.111.170/32 ip4:37.247.226.76/32 ip4:37.247.226.87/32 ip4:37.128.111.172/32 include:spf.protection.outlook.com include:spf-eu.emailsignatures365.com -all
www.optistepusa.comNS0ns2.fakro.pl
www.optistepusa.comNS0ns1.fakro.pl
www.optistepusa.comCNAME0optistepusa.com
www.optistepusa.comTXT0v=spf1 a mx ip4:37.128.111.170/32 ip4:37.247.226.76/32 ip4:37.247.226.87/32 ip4:37.128.111.172/32 include:spf.protection.outlook.com include:spf-eu.emailsignatures365.com -all
www.optistepusa.comTXT0MS=ms53271952
www.optistepusa.comA0213.216.83.221
www.optistepusa.comMX0optistepusa-com.mail.protection.outlook.com
www.optistepusa.comSOA86400ns1.fakro.pl hostmaster.fakro.pl 2026062402 28800 7200 604800 86400
www.optistepusa.comCAA00 issue letsencrypt.org
www.optistepusa.comCAA00 iodef mailto:cca@fakro.info
www.optistepusa.comCAA00 issuewild letsencrypt.org

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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