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Hosting & Network
itbook-hd.co.jp runs on AS9597, with email via Microsoft 365.
- Hosting network
- AS9597AS9597
- Managed DNS
- Self-hosted / other
- Microsoft 365
- IPv6 (AAAA)
- Not enabled
- CAA pinning
- None
Sits alongside 719 other sites on AS9597. Stable here since we started watching (Jul 22, 2026).
The apex and www are the same hosting — the apex via A records, www via a CNAME to itbook-hd.co.jp.
DNS Records for itbook-hd.co.jp
| Hostname | Type | TTL | Priority | Content |
|---|---|---|---|---|
| itbook-hd.co.jp | A | 0 | 150.60.204.91 | |
| itbook-hd.co.jp | SOA | 3600 | ns01.vips.ne.jp helpdesk.jens.jp 2024071401 10800 1800 1209600 3600 | |
| itbook-hd.co.jp | MX | 0 | itbookhd-co-jp01e.mail.protection.outlook.com | |
| itbook-hd.co.jp | NS | 0 | ns01.vips.ne.jp | |
| itbook-hd.co.jp | NS | 0 | ns00.vips.ne.jp | |
| itbook-hd.co.jp | TXT | 0 | v=spf1 include:_spf.google.com include:_spf.activegate-ss.jp include:spf.protection.outlook.com +ip4:153.228.66.232 +ip4:153.209.145.95 +ip4:124.100.107.184 +ip4:52.197.177.28 +ip4:52.197.159.48 +ip4:219.101.192.142 +ip4:118.103.98.76 +ip4:110.4.190.160 +ip4:210.153.210.98 +ip4:115.176.195.187 +ip4:180.43.32.157 +ip4:61.122.32.1 +ip4:219.101.149.194 +ip4:210.188.90.202 +ip4:219.127.103.66 +ip4:183.182.163.130 +ip4:183.182.163.129 +ip4:1.1.71.249 +ip4:183.77.227.168 +ip4:210.150.145.117 +ip4:153.240.7.7 +ip4:153.246.131.192 +ip4:20.18.24.115 ~all | |
| itbook-hd.co.jp | TXT | 0 | MS=ms54603269 | |
| itbook-hd.co.jp | TXT | 0 | google-site-verification=Phzg3PyMl7KSG8__aGHUcV6vD_bWGpQ_N-80ZozlGdc | |
| www.itbook-hd.co.jp | MX | 0 | itbookhd-co-jp01e.mail.protection.outlook.com | |
| www.itbook-hd.co.jp | SOA | 3600 | ns01.vips.ne.jp helpdesk.jens.jp 2024071401 10800 1800 1209600 3600 | |
| www.itbook-hd.co.jp | NS | 0 | ns00.vips.ne.jp | |
| www.itbook-hd.co.jp | NS | 0 | ns01.vips.ne.jp | |
| www.itbook-hd.co.jp | A | 0 | 150.60.204.91 | |
| www.itbook-hd.co.jp | CNAME | 0 | itbook-hd.co.jp | |
| www.itbook-hd.co.jp | TXT | 0 | v=spf1 include:_spf.google.com include:_spf.activegate-ss.jp include:spf.protection.outlook.com +ip4:153.228.66.232 +ip4:153.209.145.95 +ip4:124.100.107.184 +ip4:52.197.177.28 +ip4:52.197.159.48 +ip4:219.101.192.142 +ip4:118.103.98.76 +ip4:110.4.190.160 +ip4:210.153.210.98 +ip4:115.176.195.187 +ip4:180.43.32.157 +ip4:61.122.32.1 +ip4:219.101.149.194 +ip4:210.188.90.202 +ip4:219.127.103.66 +ip4:183.182.163.130 +ip4:183.182.163.129 +ip4:1.1.71.249 +ip4:183.77.227.168 +ip4:210.150.145.117 +ip4:153.240.7.7 +ip4:153.246.131.192 +ip4:20.18.24.115 ~all | |
| www.itbook-hd.co.jp | TXT | 0 | google-site-verification=Phzg3PyMl7KSG8__aGHUcV6vD_bWGpQ_N-80ZozlGdc | |
| www.itbook-hd.co.jp | TXT | 0 | MS=ms54603269 |
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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