`restrictedcode.com`

DNSSEC	⚠️ Not signed
A	77.72.2.103^{🇬🇧 KRYSTAL77.72.2.0/24}
		PTR	`p103.lon.krystal.io`
NS	`ns1.krystal.uk` ⭐
		A	77.72.0.11^{🇬🇧 KRYSTAL77.72.0.0/21 Krystal Hosting Ltd}
			PTR	`ns1.krystal.uk`
NS	`ns2.krystal.uk`
		A	139.162.230.184^{🇬🇧 AKAMAI-LINODE-AP139.162.224.0/19 Akamai Technologies}
			PTR	`ns2.krystal.uk`
MX	`mx1.krystal.io` ⭐
		A	185.53.56.44^{🇬🇧 KRYSTAL185.53.56.0/22}
			PTR	`mx1.strikemail.co.uk`
		A	185.53.56.46^{🇬🇧 KRYSTAL185.53.56.0/22}
			PTR	`mx1.strikemail.co.uk`
MX	`mx2.krystal.io`⁽²⁰⁾
		A	185.53.56.45^{🇬🇧 KRYSTAL185.53.56.0/22}
			PTR	`mx2.strikemail.co.uk`
		A	185.53.56.47^{🇬🇧 KRYSTAL185.53.56.0/22}
			PTR	`mx2.strikemail.co.uk`
TXT	`v=spf1 include:_spf.mlsend.com include:relay.k.io a mx ip4:77.72.2.103 ~all`
SOA	`ns1.krystal.uk`admin@k-validator-tuna-lon.krystal.uk 2026-03-08 #0

`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=1776141267

Same first word

restrictedcode.com

DNS History

13 records (5 active, 8 former)

●NSns1.krystal.uk2026-02-18 → 2026-04-14 · 3 obs

○ 2018-06-08 23:58:58
● 2026-02-18 13:58:06
● 2026-04-14 04:53:50

○NSns1030.ui-dns.org2018-06-08 → 2018-06-08 · 3 obs

● 2018-06-08 23:58:58
○ 2026-02-18 13:58:06
○ 2026-04-14 04:53:50

○NSns1034.ui-dns.de2018-06-08 → 2018-06-08 · 3 obs

● 2018-06-08 23:58:58
○ 2026-02-18 13:58:06
○ 2026-04-14 04:53:50

○NSns1062.ui-dns.biz2018-06-08 → 2018-06-08 · 3 obs

● 2018-06-08 23:58:58
○ 2026-02-18 13:58:06
○ 2026-04-14 04:53:50

○NSns1070.ui-dns.com2018-06-08 → 2018-06-08 · 3 obs

● 2018-06-08 23:58:58
○ 2026-02-18 13:58:06
○ 2026-04-14 04:53:50

●NSns2.krystal.uk2026-02-18 → 2026-04-14 · 3 obs

○ 2018-06-08 23:58:58
● 2026-02-18 13:58:06
● 2026-04-14 04:53:50

○MXmx00.1and1.co.uk2018-06-08 → 2018-06-08 · 3 obs

● 2018-06-08 23:58:58
○ 2026-02-18 13:58:06
○ 2026-04-14 04:53:50

○MXmx01.1and1.co.uk2018-06-08 → 2018-06-08 · 3 obs

● 2018-06-08 23:58:58
○ 2026-02-18 13:58:06
○ 2026-04-14 04:53:50

●MXmx1.krystal.io2026-02-18 → 2026-04-14 · 3 obs

○ 2018-06-08 23:58:58
● 2026-02-18 13:58:06
● 2026-04-14 04:53:50

●MXmx2.krystal.io2026-02-18 → 2026-04-14 · 3 obs

○ 2018-06-08 23:58:58
● 2026-02-18 13:58:06
● 2026-04-14 04:53:50

○A2001:8d8:100f:f000::2f22018-06-08 → 2018-06-08 · 3 obs

● 2018-06-08 23:58:58
○ 2026-02-18 13:58:06
○ 2026-04-14 04:53:50

○A217.160.0.2292018-06-08 → 2018-06-08 · 3 obs

● 2018-06-08 23:58:58
○ 2026-02-18 13:58:06
○ 2026-04-14 04:53:50

●A77.72.2.1032026-02-18 → 2026-04-14 · 3 obs

○ 2018-06-08 23:58:58
● 2026-02-18 13:58:06
● 2026-04-14 04:53:50

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...	-
restrictedcode.com	ns2.krystal.uk, ns1.krystal.uk	-

✅ Authoritative Response

Server:77.72.0.11

NS records: ns2.krystal.uk, ns1.krystal.uk

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for restrictedcode.com (unsigned zone)

⏱️ Timing

Total: 441ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`77.72.2.103`
NS	2	`ns1.krystal.uk, ns2.krystal.uk`
MX	2	`mx1.krystal.io (pri: 10), mx2.krystal.io (pri: 20)`
TXT	1	`v=spf1 include:_spf.mlsend.com include:r`
SOA	1	`ns1.krystal.uk admin.k-validator-tuna-lo`

Analysis

IP Addresses

restrictedcode.com maps to IP address 77.72.2.103.

Other host names, for instance funnywomen.co.uk, intefence.com, cmlsteel.com, keybury.co.uk and parrswood.thesharpsystem.com share IP numbers with restrictedcode.com.

Name Servers

Two name servers ns1.krystal.uk and ns2.krystal.uk are delegated to restrictedcode.com.

restrictedcode.com uses the same name server configuration as other domains, such as hiashford.co.uk, irovedout.com, deacons-accountants.co.uk, pindell.net and nicelipo.com.

restrictedcode.com at least partially shares name servers with other domains such as benjaminmee.com, samotech.co.uk, osato.co.uk, tomgirling.co.uk and no1junkstreet.co.uk.

These name servers are often used together with ns1.krystal.co.uk, ns2.krystal.co.uk, ns1.cloudhosting.uk, ns2.cloudhosting.uk, ns1.cloudhosting.co.uk, ns2.cloudhosting.co.uk, ns1.krystal.io, ns2.krystal.io, ns3.krystal.io and ns4.krystal.io.

Host names with a single IP address:

ns1.krystal.uk points to 77.72.0.11

ns2.krystal.uk points to 139.162.230.184

Mail Servers

Two mail servers handle restrictedcode.com: mx1.krystal.io and mx2.krystal.io.

restrictedcode.com shares the same mail server setup as other domains, including pediabook.com, amanara.co.uk, taguri.org, unifon.org and tfscare.com.

Host names with two IPs:

mx1.krystal.io points to 185.53.56.44 and 185.53.56.46.

mx2.krystal.io points to 185.53.56.45 and 185.53.56.47.

restrictedcode.com - robtex.com