`practicalcryptography.com`

DNSSEC	⚠️ Not signed
A	97.107.130.222^{🇺🇸 AKAMAI-LINODE-AP97.107.128.0/20 Akamai Technologies}
		PTR	`97-107-130-222.ip.linodeusercontent.com`
NS	`dns1.registrar-servers.com` ⭐
		A	2610:a1:1024::200^{🇺🇸 MAINT-ID-120082610:a1:1024::/48 Neustar}
			PTR	`dns1.namecheaphosting.com`
			PTR	`dns1.registrar-servers.com`
		A	156.154.132.200^{🇺🇸 MAINT-ID-12008156.154.132.0/24 Neustar}
			PTR	`dns1.namecheaphosting.com`
			PTR	`dns1.registrar-servers.com`
NS	`dns2.registrar-servers.com`
		A	2610:a1:1025::200^{🇺🇸 MAINT-ID-120082610:a1:1025::/48 Neustar}
			PTR	`dns2.namecheaphosting.com`
			PTR	`dns2.registrar-servers.com`
		A	156.154.133.200^{🇺🇸 MAINT-ID-12008156.154.133.0/24 Neustar}
			PTR	`dns2.namecheaphosting.com`
			PTR	`dns2.registrar-servers.com`
SOA	`dns1.registrar-servers.com`hostmaster@registrar-servers.com serial=1706561929

`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=1771291435

rank #461550 globally
rank #207438 in the tld
WOT: SAFE (80/100)

Same first word

practicalcryptography.com

DNS History

6 records (3 active, 3 former)

●NSdns1.registrar-servers.com2026-03-07 → 2026-03-23 · 3 obs

○ 2017-01-17 05:28:36
● 2026-03-07 04:42:54
● 2026-03-23 04:08:26

●NSdns2.registrar-servers.com2026-03-07 → 2026-03-23 · 3 obs

○ 2017-01-17 05:28:36
● 2026-03-07 04:42:54
● 2026-03-23 04:08:26

○NSns1.bradleyayers.com2015-06-30 → 2017-01-17 · 4 obs

● 2015-06-30 17:41:24
● 2017-01-17 05:28:36
○ 2026-03-07 04:42:54
○ 2026-03-23 04:08:26

○NSns2.bradleyayers.com2015-06-30 → 2017-01-17 · 4 obs

● 2015-06-30 17:41:24
● 2017-01-17 05:28:36
○ 2026-03-07 04:42:54
○ 2026-03-23 04:08:26

○A72.14.185.922015-06-30 → 2017-01-17 · 4 obs

● 2015-06-30 17:41:24
● 2017-01-17 05:28:36
○ 2026-03-07 04:42:54
○ 2026-03-23 04:08:26

●A97.107.130.2222026-03-07 → 2026-03-23 · 3 obs

○ 2017-01-17 05:28:36
● 2026-03-07 04:42:54
● 2026-03-23 04:08:26

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	h.gtld-servers.net, g.gtld-servers.net, d.gtld-servers.net, i.gtld-servers.net...	-
practicalcryptography.com	dns1.registrar-servers.com, dns2.registrar-servers.com	4 records

✅ Authoritative Response

Server:156.154.132.200

NS records: dns1.registrar-servers.com, dns2.registrar-servers.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for practicalcryptography.com (unsigned zone)

⏱️ Timing

Total: 1599ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`97.107.130.222`
NS	2	`dns1.registrar-servers.com, dns2.registrar-servers.com`
SOA	1	`dns1.registrar-servers.com hostmaster.re`

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (dns1.registrar-servers.com, dns1.registrar-servers.com, dns2.registrar-servers.com...)

Analysis

IP Addresses

practicalcryptography.com points to IP number 97.107.130.222.

Other host names, for instance, 97-107-130-222.ip.linodeusercontent.com share IP numbers with practicalcryptography.com.

Name Servers

practicalcryptography.com is delegated to two name servers: dns1.registrar-servers.com and dns2.registrar-servers.com.

practicalcryptography.com uses the same name server setup as other domains such as kleinschwanz.com, anguine.com, tilttheodds.com, taceo.co.uk and alexandrajaymes.com.

practicalcryptography.com shares name servers with other domains at least partially, for example alchem.tv, zenamcon.net, wpforce.net, descubrechile.net and rublagar.com.

These name servers are commonly used with dns3.registrar-servers.com, dns4.registrar-servers.com and dns5.registrar-servers.com.

Host names with two IP numbers:

dns1.registrar-servers.com points to 2610:a1:1024::200 and 156.154.132.200; dns2.registrar-servers.com points to 2610:a1:1025::200 and 156.154.133.200.

practicalcryptography.com - robtex.com