itbook.co - robtex.com
itbook.co
| DNSSEC | ⚠️ Not signed | ||||||
| A | 13.248.169.48🇺🇸 Amazon13.248.160.0/20 | ||||||
| PTR | a904c694c05102f30.awsglobalaccelerator.com | ||||||
| A | 76.223.54.146🇺🇸 Amazon76.223.48.0/20 | ||||||
| NS | ns1.afternic.com ⭐ | ||||||
| A | 2603:5:2126::45🇺🇸 GODADDY-DNS2603:5:2120::/44 | ||||||
| PTR | ns1.afternic.com | ||||||
| A | 97.74.98.69🇺🇸 GODADDY-DNS97.74.98.0/23 | ||||||
| PTR | ns1.afternic.com | ||||||
| NS | ns2.afternic.com | ||||||
| A | 2603:5:2226::45🇺🇸 GODADDY-DNS2603:5:2220::/44 | ||||||
| PTR | ns2.afternic.com | ||||||
| A | 173.201.66.69🇺🇸 GODADDY-DNS173.201.66.0/23 | ||||||
| PTR | ns2.afternic.com | ||||||
| NS | verification-imdej9cdcjwbr9fxdufjlq.ns101.verify.hn ⚠️ Not in zone NS records | ||||||
| A | 13.248.169.48🇺🇸 Amazon13.248.160.0/20 | ||||||
| PTR | a904c694c05102f30.awsglobalaccelerator.com | ||||||
| A | 76.223.54.146🇺🇸 Amazon76.223.48.0/20 | ||||||
| PTR | a904c694c05102f30.awsglobalaccelerator.com | ||||||
| TXT | v=spf1 -all | ||||||
| SOA | ns1.afternic.comdns@jomax.net serial=1 | ||||||
co
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | ns0.centralnic.net ⭐ | ||||||
| NS | a.registrydns.co | ||||||
| NS | b.registrydns.co | ||||||
| NS | c.registrydns.co | ||||||
| NS | d.registrydns.co | ||||||
| SOA | ns0.centralnic.nethostmaster@centralnic.net serial=1759717797 | ||||||
Same first word
itbook.de |
itbook.co.kr |
itbook.com |
itbook.net |
itbook.cc |
itbook.store |
itbook.info |
itbook.co |
itbook.download |
itbook.sakura.ne.jp |
itbook.pl |
itbook.eu |
itbook.es |
Similar names
DNS History
11 records (5 active, 6 former)
○NSns01.one.com2015-07-23 → 2016-03-26 · 4 obs
● 2016-03-26 15:12:22
○ 2017-03-29 15:37:44
○ 2026-07-27 18:59:26
○NSns02.one.com2015-07-23 → 2016-03-26 · 4 obs
● 2016-03-26 15:12:22
○ 2017-03-29 15:37:44
○ 2026-07-27 18:59:26
●NSns1.afternic.com2026-06-15 → 2026-07-27 · 3 obs
● 2026-06-15 15:39:14
● 2026-07-27 18:59:26
●NSns2.afternic.com2026-06-15 → 2026-07-27 · 3 obs
● 2026-06-15 15:39:14
● 2026-07-27 18:59:26
●NSverification-imdej9cdcjwbr9fxdufjlq.ns101.verify.hn2026-06-15 → 2026-07-27 · 3 obs
● 2026-06-15 15:39:14
● 2026-07-27 18:59:26
○MXmxcluster1.one.com2015-07-23 → 2016-03-26 · 4 obs
● 2016-03-26 15:12:22
○ 2017-03-29 15:37:44
○ 2026-07-27 18:59:26
○MXmxcluster2.one.com2015-07-23 → 2016-03-26 · 4 obs
● 2016-03-26 15:12:22
○ 2017-03-29 15:37:44
○ 2026-07-27 18:59:26
●A13.248.169.482026-06-15 → 2026-07-27 · 3 obs
● 2026-06-15 15:39:14
● 2026-07-27 18:59:26
○A46.30.212.2292015-11-18 → 2016-03-26 · 5 obs
● 2015-11-18 10:43:14
● 2016-03-26 15:12:22
○ 2017-03-29 15:37:44
○ 2026-07-27 18:59:26
○A46.30.212.662015-07-23 → 2015-07-23 · 3 obs
○ 2015-11-18 10:43:14
○ 2026-07-27 18:59:26
●A76.223.54.1462026-06-15 → 2026-07-27 · 3 obs
● 2026-06-15 15:39:14
● 2026-07-27 18:59:26
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| co | b.registrydns.co, a.registrydns.co, d.registrydns.co, c.registrydns.co | - |
| itbook.co | ns1.afternic.com, ns2.afternic.com, verification-imdej9cdcjwbr9fxdufjlq.ns101.verify.hn | - |
✅ Authoritative Response
Server:97.74.98.69
NS records: ns1.afternic.com, ns2.afternic.com, verification-imdej9cdcjwbr9fxdufjlq.ns101.verify.hn
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for itbook.co (unsigned zone)
⏱️ Timing
Total: 3139ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 76.223.54.146, 13.248.169.48 |
| NS | 2 | ns1.afternic.com, ns2.afternic.com |
| MX | 1 | . (pri: 0) |
| TXT | 1 | v=spf1 -all |
| SOA | 1 | ns1.afternic.com dns.jomax.net |
Analysis
IP Addresses
itbook.co points to the IP addresses 13.248.169.48 and 76.223.54.146
Two other host names, along with www.drivinglessons.co.za, secumaster.com and co.id40www.dollarstore.hit.to, also share IP numbers with itbook.co.
Name Servers
The authoritative name servers for itbook.co are ns1.afternic.com, ns2.afternic.com and verification-imdej9cdcjwbr9fxdufjlq.ns101.verify.hn — three in total.
There is at least partial name server overlap between itbook.co and other domains — mail.vegaship.com, firedept.net, dns.samin.co.uk and two more among them.
These name servers tend to appear in combination with the name servers verification-d3jclucsp89ganyqbydeny.ns101.verify.hn, verification-ywpbsnxpm99a4argbrkijr.ns101.verify.hn, verification-m3erh32ujyoastvophjvuz.ns101.verify.hn and verification-gg7m2kugnfcdrc4tef2fvf.ns101.verify.hn.
ns1.afternic.com, ns2.afternic.com and verification-imdej9cdcjwbr9fxdufjlq.ns101.verify.hn all resolve to exactly two IP numbers apiece: ns1.afternic.com → 97.74.98.69 and 2603:5:2126::45; ns2.afternic.com → 173.201.66.69 and 2603:5:2226::45; verification-imdej9cdcjwbr9fxdufjlq.ns101.verify.hn → 13.248.169.48 and 76.223.54.146.