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Hosting & Network
optistepusa.com runs on AS12741, with email via Microsoft 365.
- Hosting network
- AS12741AS12741
- Managed DNS
- Self-hosted / other
- Microsoft 365
- IPv6 (AAAA)
- Not enabled
- CAA pinning
- Set
Sits alongside 349 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
| Hostname | Type | TTL | Priority | Content |
|---|---|---|---|---|
| optistepusa.com | MX | 0 | optistepusa-com.mail.protection.outlook.com | |
| optistepusa.com | NS | 0 | ns2.fakro.pl | |
| optistepusa.com | NS | 0 | ns1.fakro.pl | |
| optistepusa.com | SOA | 86400 | ns1.fakro.pl hostmaster.fakro.pl 2026062402 28800 7200 604800 86400 | |
| optistepusa.com | A | 0 | 213.216.83.221 | |
| optistepusa.com | CAA | 0 | 0 iodef mailto:cca@fakro.info | |
| optistepusa.com | CAA | 0 | 0 issue letsencrypt.org | |
| optistepusa.com | CAA | 0 | 0 issuewild letsencrypt.org | |
| optistepusa.com | TXT | 0 | MS=ms53271952 | |
| optistepusa.com | TXT | 0 | v=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.com | NS | 0 | ns2.fakro.pl | |
| www.optistepusa.com | NS | 0 | ns1.fakro.pl | |
| www.optistepusa.com | CNAME | 0 | optistepusa.com | |
| www.optistepusa.com | TXT | 0 | v=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.com | TXT | 0 | MS=ms53271952 | |
| www.optistepusa.com | A | 0 | 213.216.83.221 | |
| www.optistepusa.com | MX | 0 | optistepusa-com.mail.protection.outlook.com | |
| www.optistepusa.com | SOA | 86400 | ns1.fakro.pl hostmaster.fakro.pl 2026062402 28800 7200 604800 86400 | |
| www.optistepusa.com | CAA | 0 | 0 issue letsencrypt.org | |
| www.optistepusa.com | CAA | 0 | 0 iodef mailto:cca@fakro.info | |
| www.optistepusa.com | CAA | 0 | 0 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