gcfbook.com - robtex.com

gcfbook.com

DNSSEC⚠️ Not signed
A172.247.41.2🇺🇸 CNSERVERSLLC172.247.0.0/16 cust proxy reg
NSns1.sharesdns.com ⭐
A154.23.191.194🇺🇸 HKCICL-AS-AP154.23.191.0/24 HONG KONG COMMUNICATIONS INTERNATIONAL CO.,LIMITED
A154.86.21.194🇭🇰 HKCICL-AS-AP154.86.21.0/24 HONG KONG COMMUNICATIONS INTERNATIONAL CO.,LIMITED
NSns2.sharesdns.com
A154.23.191.195🇺🇸 HKCICL-AS-AP154.23.191.0/24 HONG KONG COMMUNICATIONS INTERNATIONAL CO.,LIMITED
A154.86.21.195🇭🇰 HKCICL-AS-AP154.86.21.0/24 HONG KONG COMMUNICATIONS INTERNATIONAL CO.,LIMITED
SOAns1.sharesdns.comadmin@sharesdns.com serial=1589012322

com

DNSSEC🔒 Signed (DS record present)
NSa.gtld-servers.net ⭐
NSb.gtld-servers.net
NSc.gtld-servers.net
NSd.gtld-servers.net
NSe.gtld-servers.net
NSf.gtld-servers.net
NSg.gtld-servers.net
NSh.gtld-servers.net
NSi.gtld-servers.net
NSj.gtld-servers.net
NSk.gtld-servers.net
NSl.gtld-servers.net
NSm.gtld-servers.net
SOAa.gtld-servers.netnstld@verisign-grs.com serial=1771291435
WOT: SAFE (60/100)

Subdomains

m.gcfbook.com

Same first word

gcfbook.com

DNS History

12 records (3 active, 9 former)

20162017201820192020202120222023202420252026NSns1.sharesdns.comns2.sharesdns.comf1g1ns1.dnspod.netf1g1ns2.dnspod.netns1.namebrightdns.comns2.namebrightdns.comA172.247.41.2103.41.52.7254.86.217.13254.88.146.159CNAMEcaught.dropcatch.comnbparking-lb-1977168523.us-east-1.elb.amazonaws.com
○NSf1g1ns1.dnspod.net2015-06-02 → 2016-04-14 · 4 obs
● 2015-06-02 01:05:20
● 2016-04-14 03:50:50
○ 2017-01-02 23:52:14
○ 2026-03-18 11:50:44
○NSf1g1ns2.dnspod.net2015-06-02 → 2016-04-14 · 4 obs
● 2015-06-02 01:05:20
● 2016-04-14 03:50:50
○ 2017-01-02 23:52:14
○ 2026-03-18 11:50:44
○NSns1.namebrightdns.com2017-01-02 → 2017-01-02 · 4 obs
○ 2016-04-14 03:50:50
● 2017-01-02 23:52:14
○ 2026-02-24 16:23:58
○ 2026-03-18 11:50:44
●NSns1.sharesdns.com2026-02-24 → 2026-03-18 · 3 obs
○ 2017-01-02 23:52:14
● 2026-02-24 16:23:58
● 2026-03-18 11:50:44
○NSns2.namebrightdns.com2017-01-02 → 2017-01-02 · 4 obs
○ 2016-04-14 03:50:50
● 2017-01-02 23:52:14
○ 2026-02-24 16:23:58
○ 2026-03-18 11:50:44
●NSns2.sharesdns.com2026-02-24 → 2026-03-18 · 3 obs
○ 2017-01-02 23:52:14
● 2026-02-24 16:23:58
● 2026-03-18 11:50:44
○A103.41.52.722015-06-02 → 2016-04-14 · 4 obs
● 2015-06-02 01:05:20
● 2016-04-14 03:50:50
○ 2017-01-02 23:52:14
○ 2026-03-18 11:50:44
●A172.247.41.22026-03-13 → 2026-03-18 · 4 obs
○ 2026-02-24 16:23:58
○ 2026-02-25 10:21:24
● 2026-03-13 02:03:54
● 2026-03-18 11:50:44
○A54.86.217.1322017-01-02 → 2017-01-02 · 4 obs
○ 2016-04-14 03:50:50
● 2017-01-02 23:52:14
○ 2026-02-24 16:23:58
○ 2026-03-18 11:50:44
○A54.88.146.1592017-01-02 → 2017-01-02 · 4 obs
○ 2016-04-14 03:50:50
● 2017-01-02 23:52:14
○ 2026-02-24 16:23:58
○ 2026-03-18 11:50:44
○CNAMEcaught.dropcatch.com2017-01-02 → 2017-01-02 · 3 obs
● 2017-01-02 23:52:14
○ 2026-02-24 16:23:58
○ 2026-03-18 11:50:44
○CNAMEnbparking-lb-1977168523.us-east-1.elb.amazonaws.com2017-01-02 → 2017-01-02 · 3 obs
● 2017-01-02 23:52:14
○ 2026-02-24 16:23:58
○ 2026-03-18 11:50:44

🔍 DNS Trace

Analysis

Hierarchy

gcfbook.com is the parent of m.gcfbook.com.

IP Addresses

gcfbook.com resolves to one IP number: 172.247.41.2.

Other host names, for instance hsfzedu.cn, m.gcfbook.com and mail.hsfzedu.cn share IP numbers with gcfbook.com.

Name Servers

gcfbook.com is delegated to two name servers ns1.sharesdns.com and ns2.sharesdns.com.

gcfbook.com shares the same name server setup as other domains, for instance 21windows.com, zyqzyyjy.com, cqsuoke.com, kmshellac.com and ynjiali.com.

Host names with two IP numbers:

The host name ns1.sharesdns.com points to 154.23.191.194 and 154.86.21.194; the host name ns2.sharesdns.com points to 154.23.191.195 and 154.86.21.195.