`ratiocalculators.com`

DNSSEC	⚠️ Not signed
A	158.220.115.140^{🇩🇪 CONTABO158.220.112.0/20}
		PTR	`server.cybernetaustralia.com`
NS	`ns112.cybernetaustralia.com` ⭐ ⚠️ Not in parent delegation
		A	158.220.115.140^{🇩🇪 CONTABO158.220.112.0/20}
			PTR	`server.cybernetaustralia.com`
NS	`ns113.cybernetaustralia.com` ⚠️ Not in parent delegation
		A	158.220.115.140^{🇩🇪 CONTABO158.220.112.0/20}
			PTR	`server.cybernetaustralia.com`
NS	`ns19.host.com.pk` ⚠️ Not in zone NS records
		A	158.220.115.140^{🇩🇪 CONTABO158.220.112.0/20}
			PTR	`server.cybernetaustralia.com`
NS	`ns20.host.com.pk` ⚠️ Not in zone NS records
		A	158.220.115.140^{🇩🇪 CONTABO158.220.112.0/20}
			PTR	`server.cybernetaustralia.com`
MX	`ratiocalculators.com` ⭐
		A	158.220.115.140^{🇩🇪 CONTABO158.220.112.0/20}
			PTR	`server.cybernetaustralia.com`
TXT	`v=spf1 +a +mx +ip4:158.220.115.140 ~all`
SOA	`ns112.cybernetaustralia.com`syed_dillu@hotmail.com 2026-04-28 #1

`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=1778494786

MX for

ratiocalculators.com

Same first word

ratiocalculators.com

DNS History

13 records (6 active, 7 former)

○NSns-cloud1.googledomains.com2015-10-28 → 2016-04-14 · 5 obs

○ 2008-03-15 05:23:44
● 2015-10-28 08:06:38
● 2016-04-14 18:41:20
○ 2016-11-27 04:06:56
○ 2026-05-11 10:24:42

○NSns-cloud2.googledomains.com2015-10-28 → 2016-04-14 · 5 obs

○ 2008-03-15 05:23:44
● 2015-10-28 08:06:38
● 2016-04-14 18:41:20
○ 2016-11-27 04:06:56
○ 2026-05-11 10:24:42

○NSns-cloud3.googledomains.com2015-10-28 → 2016-04-14 · 5 obs

○ 2008-03-15 05:23:44
● 2015-10-28 08:06:38
● 2016-04-14 18:41:20
○ 2016-11-27 04:06:56
○ 2026-05-11 10:24:42

○NSns-cloud4.googledomains.com2015-10-28 → 2016-04-14 · 5 obs

○ 2008-03-15 05:23:44
● 2015-10-28 08:06:38
● 2016-04-14 18:41:20
○ 2016-11-27 04:06:56
○ 2026-05-11 10:24:42

○NSns1.directnavi1.com2008-03-15 → 2008-03-15 · 3 obs

● 2008-03-15 05:23:44
○ 2015-10-28 08:06:38
○ 2026-05-11 10:24:42

●NSns112.cybernetaustralia.com2026-04-09 → 2026-05-11 · 3 obs

○ 2016-11-27 04:06:56
● 2026-04-09 10:01:48
● 2026-05-11 10:24:42

●NSns113.cybernetaustralia.com2026-04-09 → 2026-05-11 · 3 obs

○ 2016-11-27 04:06:56
● 2026-04-09 10:01:48
● 2026-05-11 10:24:42

●NSns19.host.com.pk2026-04-09 → 2026-05-11 · 3 obs

○ 2016-11-27 04:06:56
● 2026-04-09 10:01:48
● 2026-05-11 10:24:42

○NSns2.directnavi2.com2008-03-15 → 2008-03-15 · 3 obs

● 2008-03-15 05:23:44
○ 2015-10-28 08:06:38
○ 2026-05-11 10:24:42

●NSns20.host.com.pk2026-04-09 → 2026-05-11 · 3 obs

○ 2016-11-27 04:06:56
● 2026-04-09 10:01:48
● 2026-05-11 10:24:42

●MXratiocalculators.com2026-04-09 → 2026-05-11 · 2 obs

● 2026-04-09 10:01:48
● 2026-05-11 10:24:42

●A158.220.115.1402026-04-09 → 2026-05-11 · 3 obs

○ 2015-10-28 08:06:38
● 2026-04-09 10:01:48
● 2026-05-11 10:24:42

○A72.32.71.2142008-03-15 → 2008-03-15 · 3 obs

● 2008-03-15 05:23:44
○ 2015-10-28 08:06:38
○ 2026-05-11 10:24:42

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
ratiocalculators.com	ns19.host.com.pk, ns20.host.com.pk	-

✅ Authoritative Response

Server:158.220.115.140

NS records: ns19.host.com.pk, ns20.host.com.pk

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for ratiocalculators.com (unsigned zone)

⏱️ Timing

Total: 438ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`158.220.115.140`
NS	2	`ns112.cybernetaustralia.com, ns113.cybernetaustralia.com`
MX	1	`ratiocalculators.com (pri: 0)`
TXT	1	`v=spf1 +a +mx +ip4:158.220.115.140 ~all`
SOA	1	`ns112.cybernetaustralia.com syed_dillu.h`

Analysis

Mail Server Role

ratiocalculators.com serves as the mail server for ratiocalculators.com.

IP Addresses

ratiocalculators.com resolves to a single IP address: 158.220.115.140.

Other host names including ns114.host.com.pk, trhbusiness.com, ns19.cybernetaustralia.com, alqaflamovers.com and ns112.cybernetaustralia.com share IP numbers with ratiocalculators.com.

Name Servers

ratiocalculators.com is delegated to four name servers: ns112.cybernetaustralia.com, ns113.cybernetaustralia.com, ns19.host.com.pk and ns20.host.com.pk.

ratiocalculators.com at least partially shares name servers with other domains, including ammch.com, premiumfood.pk, helpu2helpu.com, glowskintoday.com and rbitra.com.

These name servers are often used together with ns20.cybernetaustralia.com.

Host names with one IP number: The host names ns112.cybernetaustralia.com, ns113.cybernetaustralia.com, ns19.host.com.pk and ns20.host.com.pk point to 158.220.115.140.

Mail Servers

A single mail server handles ratiocalculators.com.

ratiocalculators.com points to a single IP: 158.220.115.140.

ratiocalculators.com - robtex.com