itbbooks.com - robtex.com
itbbooks.com
com
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.gtld-servers.net ⭐ | ||||||
| NS | b.gtld-servers.net | ||||||
| NS | c.gtld-servers.net | ||||||
| NS | d.gtld-servers.net | ||||||
| NS | e.gtld-servers.net | ||||||
| NS | f.gtld-servers.net | ||||||
| NS | g.gtld-servers.net | ||||||
| NS | h.gtld-servers.net | ||||||
| NS | i.gtld-servers.net | ||||||
| NS | j.gtld-servers.net | ||||||
| NS | k.gtld-servers.net | ||||||
| NS | l.gtld-servers.net | ||||||
| NS | m.gtld-servers.net | ||||||
| SOA | a.gtld-servers.netnstld@verisign-grs.com serial=1778470891 | ||||||
Same first word
itbbooks.com |
Similar names
DNS History
9 records (5 active, 4 former)
●NSns19.domaincontrol.com2026-04-04 → 2026-05-11 · 3 obs
● 2026-04-04 08:12:34
● 2026-05-11 03:55:42
●NSns20.domaincontrol.com2026-04-04 → 2026-05-11 · 3 obs
● 2026-04-04 08:12:34
● 2026-05-11 03:55:42
○NSns87.worldnic.com2015-07-08 → 2016-05-02 · 4 obs
● 2016-05-02 13:46:32
○ 2017-02-16 20:56:34
○ 2026-05-11 03:55:42
○NSns88.worldnic.com2015-07-08 → 2016-05-02 · 4 obs
● 2016-05-02 13:46:32
○ 2017-02-16 20:56:34
○ 2026-05-11 03:55:42
●MXitbbooks-com.mail.protection.outlook.com2026-04-04 → 2026-05-11 · 3 obs
● 2026-04-04 08:12:34
● 2026-05-11 03:55:42
○MXmail.itbbooks.com2015-07-08 → 2016-05-02 · 4 obs
● 2016-05-02 13:46:32
○ 2017-02-16 20:56:34
○ 2026-05-11 03:55:42
●A13.248.243.52026-04-04 → 2026-05-11 · 3 obs
● 2026-04-04 08:12:34
● 2026-05-11 03:55:42
○A205.178.189.1292015-07-08 → 2016-05-02 · 4 obs
● 2016-05-02 13:46:32
○ 2017-02-16 20:56:34
○ 2026-05-11 03:55:42
●A76.223.105.2302026-04-04 → 2026-05-11 · 3 obs
● 2026-04-04 08:12:34
● 2026-05-11 03:55:42
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net... | - |
| itbbooks.com | ns19.domaincontrol.com, ns20.domaincontrol.com | 4 records |
✅ Authoritative Response
Server:97.74.109.10
NS records: ns19.domaincontrol.com, ns20.domaincontrol.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for itbbooks.com (unsigned zone)
⏱️ Timing
Total: 111ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 76.223.105.230, 13.248.243.5 |
| NS | 2 | ns19.domaincontrol.com, ns20.domaincontrol.com |
| MX | 1 | itbbooks-com.mail.protection.outlook.com |
| TXT | 2 | MS=ms44485542, v=spf1 include:spf.protection.outlook.co |
| SOA | 1 | ns19.domaincontrol.com dns.jomax.net |
📌 Glue Records Collected
Total: 4
Out-of-bailiwick: 4 (ns19.domaincontrol.com, ns19.domaincontrol.com, ns20.domaincontrol.com...)
Analysis
IP Addresses
itbbooks.com resolves to two IPs: 13.248.243.5 and 76.223.105.230.
other host names for instance xpower.us, bbqgrillsupply.com, rediscoveringmyself.com, qob.es and talent-interiors.com share IP numbers with itbbooks.com.
Name Servers
itbbooks.com is delegated to two name servers: ns19.domaincontrol.com and ns20.domaincontrol.com.
itbbooks.com shares the same name server setup as other domains, for example sekisano.com, bcempower.com, feelinghealthytoday.com, chanch.org and 1to1bariatric.com.
itbbooks.com at least partially shares name servers with other domains, for example gprassociates.com and 2easy.com.tw.
Host names with two IP numbers:
ns19.domaincontrol.com points to 2603:5:21d0::a and 97.74.109.10
ns20.domaincontrol.com points to 2603:5:22d0::a and 173.201.77.10
Mail Servers
itbbooks.com is handled by a single mail server, itbbooks-com.mail.protection.outlook.com.
Host name itbbooks-com.mail.protection.outlook.com points to eight IP numbers: 2a01:111:f403:c936::, 2a01:111:f403:f804::1, 2a01:111:f403:f90f::1, 2a01:111:f403:f912::, 52.101.10.14, 52.101.11.9, 52.101.40.1 and 52.101.41.22.