`referencebooks.net`

DNSSEC	⚠️ Not signed
NS	`dns3.fisc.com` ⚠️ Not in zone NS records
		A	18.222.65.51^{🇺🇸 Amazon18.220.0.0/14 EC2 CMH prefix}
			PTR	`ec2-18-222-65-51.us-east-2.compute.amazonaws.com`
NS	`dns4.fisc.com` ⚠️ Not in zone NS records

`net`

	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=1774452922

referencebooks.nl

referencebooks.net

2 records (2 active, 0 former)

●NSdns3.fisc.com2026-02-21 → 2026-03-25 · 2 obs

● 2026-02-21 08:16:24
● 2026-03-25 16:02:38

●NSdns4.fisc.com2026-02-21 → 2026-03-25 · 2 obs

● 2026-02-21 08:16:24
● 2026-03-25 16:02:38

Zone	Nameservers	Glue
net	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
referencebooks.net	dns3.fisc.com, dns4.fisc.com	-

Server:18.222.65.51

NS records: dns3.fisc.com, dns4.fisc.com

⚠️ Insecure (no DNSSEC)

No DS record for referencebooks.net (unsigned zone)

Total: 144ms | Queries: -

Type	Count	Sample Data

referencebooks.net is delegated to two name servers: dns3.fisc.com and dns4.fisc.com.

referencebooks.net shares the same name server setup as other domains, for example cyberstamp.org, lightning-force.net, harryfischer.net, optimalhealing.net and purely-organics.net.

referencebooks.net at least partially shares name servers with other domains, for instance speaking-volumes.com, fisc.com, internetcash.com, ourvoicesunited.us and leecastle.com.

These name servers are commonly used with dns1.fisc.com, dns2.fisc.com and dns5.fisc.com.

Host names with one IP number: dns3.fisc.com points to: 18.222.65.51.