refbook.com - dns.ninja

`refbook.com`

DNSSEC	⚠️ Not signed
A	168.138.174.20^{🇸🇬 ORACLE-OCI-31898168.138.160.0/19 Oracle Corporation}
NS	`erin.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3a71^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`erin.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c071^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`erin.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2071^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`erin.ns.cloudflare.com`
		A	108.162.192.113^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`erin.ns.cloudflare.com`
		A	172.64.32.113^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`erin.ns.cloudflare.com`
		A	173.245.58.113^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`erin.ns.cloudflare.com`
NS	`james.ns.cloudflare.com`
		A	2606:4700:58::adf5:3bb2^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`james.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c1b2^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`james.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:21b2^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`james.ns.cloudflare.com`
		A	108.162.193.178^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`james.ns.cloudflare.com`
		A	172.64.33.178^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`james.ns.cloudflare.com`
		A	173.245.59.178^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`james.ns.cloudflare.com`
TXT	`ca3-eaf2ebdd708842618580837cf50068de`
SOA	`erin.ns.cloudflare.com`dns@cloudflare.com serial=2411838251

`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.net`nstld@verisign-grs.com serial=1786392199

Subdomains

live.refbook.com

www.refbook.com

email.refbook.com

Same first word

refbook.net

refbook.com.au

refbook.cn

refbook.com.cn

refbook.herokuapp.com

refbook.online

refbook.com

Similar names

bookref.com

forkobe.com

frebook.com

bookerf.com

roebfko.cn

fbooker.co.uk

ferbook.com

erfbook.com

fbooker.com

DNS History

10 records (3 active, 7 former)

○NSdns1.name-services.com2008-11-05 → 2018-09-10 · 4 obs

● 2008-11-05 10:01:18
● 2018-09-10 18:09:10
○ 2026-02-15 05:54:00
○ 2026-08-10 20:21:26

○NSdns2.name-services.com2008-11-05 → 2018-09-10 · 4 obs

● 2008-11-05 10:01:18
● 2018-09-10 18:09:10
○ 2026-02-15 05:54:00
○ 2026-08-10 20:21:26

○NSdns3.name-services.com2008-11-05 → 2018-09-10 · 4 obs

● 2008-11-05 10:01:18
● 2018-09-10 18:09:10
○ 2026-02-15 05:54:00
○ 2026-08-10 20:21:26

○NSdns4.name-services.com2008-11-05 → 2018-09-10 · 4 obs

● 2008-11-05 10:01:18
● 2018-09-10 18:09:10
○ 2026-02-15 05:54:00
○ 2026-08-10 20:21:26

○NSdns5.name-services.com2008-11-05 → 2018-09-10 · 4 obs

● 2008-11-05 10:01:18
● 2018-09-10 18:09:10
○ 2026-02-15 05:54:00
○ 2026-08-10 20:21:26

●NSerin.ns.cloudflare.com2026-02-15 → 2026-08-10 · 3 obs

○ 2018-09-10 18:09:10
● 2026-02-15 05:54:00
● 2026-08-10 20:21:26

●NSjames.ns.cloudflare.com2026-02-15 → 2026-08-10 · 3 obs

○ 2018-09-10 18:09:10
● 2026-02-15 05:54:00
● 2026-08-10 20:21:26

●A168.138.174.202026-02-15 → 2026-08-10 · 3 obs

○ 2018-09-10 18:09:10
● 2026-02-15 05:54:00
● 2026-08-10 20:21:26

○A192.168.3.22015-08-21 → 2018-09-10 · 5 obs

○ 2008-11-05 10:01:18
● 2015-08-21 10:52:10
● 2018-09-10 18:09:10
○ 2026-02-15 05:54:00
○ 2026-08-10 20:21:26

○A219.163.200.652008-11-05 → 2008-11-05 · 3 obs

● 2008-11-05 10:01:18
○ 2015-08-21 10:52:10
○ 2026-08-10 20:21:26

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	h.gtld-servers.net, i.gtld-servers.net, k.gtld-servers.net, e.gtld-servers.net...	-
refbook.com	erin.ns.cloudflare.com, james.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.192.113

NS records: erin.ns.cloudflare.com, james.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for refbook.com (unsigned zone)

⏱️ Timing

Total: 209ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`168.138.174.20`
NS	2	`erin.ns.cloudflare.com, james.ns.cloudflare.com`
TXT	1	`ca3-eaf2ebdd708842618580837cf50068de`
SOA	1	`erin.ns.cloudflare.com dns.cloudflare.co`

📌 Glue Records Collected

Total: 12

Out-of-bailiwick: 12 (erin.ns.cloudflare.com, erin.ns.cloudflare.com, erin.ns.cloudflare.com...)

Analysis

Hierarchy

refbook.com sits above live.refbook.com, www.refbook.com and email.refbook.com in the domain hierarchy.

IP Addresses

refbook.com resolves to one IP address: 168.138.174.20.

Other hosts including live.refbook.com, www.refbook.com and email.refbook.com share IP addresses with refbook.com.

Name Servers

DNS delegation for refbook.com points to two name servers: erin.ns.cloudflare.com and james.ns.cloudflare.com.

refbook.com uses the same name servers as several other domains — among them dom2-fan.ru, doedar299.shop, doedap173.shop and two more.

There is at least partial name server overlap between refbook.com and other domains — spedtrum.net, fantasysportstech.com, uluckyplus2b.com and two more among them.

The name servers vivienne.ns.cloudflare.com, ivan.ns.cloudflare.com and lex.ns.cloudflare.com are often found in combination with these name servers.

Hostnames that resolve to 6 IP addresses:

erin.ns.cloudflare.com has IP addresses 108.162.192.113, 172.64.32.113 and 173.245.58.113, plus 3 other.

james.ns.cloudflare.com has IP addresses 108.162.193.178, 172.64.33.178 and 173.245.59.178, plus 3 other.