`flashcalc.com`

DNSSEC	⚠️ Not signed
A	165.160.13.20^{🇺🇸 CORPORATION-1165.160.13.0/24 251 Little Falls Drive Wilmington DE 19808 United States}
A	165.160.15.20^{🇺🇸 CORPORATION-1165.160.15.0/24 251 Little Falls Drive Wilmington DE 19808 United States}
NS	`dns1.cscdns.net` ⭐
		A	2610:a1:1022::100^{🇺🇸 MAINT-ID-120082610:a1:1022::/48 Neustar}
			PTR	`ns1.arcemus.com`
			PTR	`kandns06.digitalarchives.com`
			PTR	`ns1.euro909.com`
			PTR	`ns2.euro909.com`
			PTR	`indom10.indomco.com`
			PTR	`indom30.indomco.fr`
			PTR	`ns1.ascio.net`
			PTR	`ns3.ascio.net`
			PTR	`dns1.cscdns.net`
			PTR	`pdns1.cscdns.net`
			PTR	`sbdns3.cscdns.net`
			PTR	`spdns3.cscdns.net`
			PTR	`ns0.netnames.net`
			PTR	`ns1.netnames.net`
			PTR	`ns3.netnames.net`
			PTR	`ns5.netnames.net`
			PTR	`ns7.netnames.net`
			PTR	`indom130.indomco.org`
			PTR	`ns2.domainnetwork.se`
			PTR	`ns.domainnetwork.se`
		A	156.154.130.100^{🇺🇸 MAINT-ID-12008156.154.130.0/24 Neustar}
			PTR	`ns1.arcemus.com`
			PTR	`kandns06.digitalarchives.com`
			PTR	`ns1.euro909.com`
			PTR	`ns2.euro909.com`
			PTR	`indom10.indomco.com`
			PTR	`indom30.indomco.fr`
			PTR	`ns1.ascio.net`
			PTR	`ns3.ascio.net`
			PTR	`dns1.cscdns.net`
			PTR	`pdns1.cscdns.net`
			PTR	`sbdns3.cscdns.net`
			PTR	`spdns3.cscdns.net`
			PTR	`ns0.netnames.net`
			PTR	`ns1.netnames.net`
			PTR	`ns3.netnames.net`
			PTR	`ns5.netnames.net`
			PTR	`ns7.netnames.net`
			PTR	`indom130.indomco.org`
			PTR	`ns2.domainnetwork.se`
			PTR	`ns.domainnetwork.se`
NS	`dns2.cscdns.net`
		A	2610:a1:1023::100^{🇺🇸 MAINT-ID-120082610:a1:1023::/48 Neustar}
			PTR	`ns2.arcemus.com`
			PTR	`nusdns06.digitalarchives.com`
			PTR	`ns3.domainnetwork.com`
			PTR	`ns3.euro909.com`
			PTR	`indom80.indomco.hk`
			PTR	`ns2.ascio.net`
			PTR	`ns4.ascio.net`
			PTR	`dns2.cscdns.net`
			PTR	`pdns2.cscdns.net`
			PTR	`indom20.indomco.net`
			PTR	`ns2.netnames.net`
			PTR	`ns4.netnames.net`
			PTR	`ns6.netnames.net`
			PTR	`ns8.netnames.net`
		A	156.154.131.100^{🇺🇸 MAINT-ID-12008156.154.131.0/24 Neustar}
			PTR	`ns2.arcemus.com`
			PTR	`nusdns06.digitalarchives.com`
			PTR	`ns3.domainnetwork.com`
			PTR	`ns3.euro909.com`
			PTR	`indom80.indomco.hk`
			PTR	`ns2.ascio.net`
			PTR	`ns4.ascio.net`
			PTR	`dns2.cscdns.net`
			PTR	`pdns2.cscdns.net`
			PTR	`indom20.indomco.net`
			PTR	`ns2.netnames.net`
			PTR	`ns4.netnames.net`
			PTR	`ns6.netnames.net`
			PTR	`ns8.netnames.net`
MX	`custmx.cscdns.net` ⭐
		A	198.58.121.58^{🇺🇸 AKAMAI-LINODE-AP198.58.96.0/19 Akamai Technologies}
			PTR	`198-58-121-58.ip.linodeusercontent.com`
SOA	`dns1.cscdns.net`hostmaster@cscdns.net 2018-09-05 #3

`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=1774633287

Same first word

flashcalc.com

DNS History

15 records (5 active, 10 former)

●NSdns1.cscdns.net2020-04-08 → 2026-03-27 · 3 obs

○ 2017-03-24 15:58:04
● 2020-04-08 03:57:26
● 2026-03-27 18:03:26

●NSdns2.cscdns.net2020-04-08 → 2026-03-27 · 3 obs

○ 2017-03-24 15:58:04
● 2020-04-08 03:57:26
● 2026-03-27 18:03:26

○NSns13.domaincontrol.com2015-08-12 → 2017-03-24 · 5 obs

○ 2008-03-15 15:25:18
● 2015-08-12 12:13:12
● 2017-03-24 15:58:04
○ 2020-04-08 03:57:26
○ 2026-03-27 18:03:26

○NSns14.domaincontrol.com2015-08-12 → 2017-03-24 · 5 obs

○ 2008-03-15 15:25:18
● 2015-08-12 12:13:12
● 2017-03-24 15:58:04
○ 2020-04-08 03:57:26
○ 2026-03-27 18:03:26

○NSrgp1.stargate.com2008-03-15 → 2008-03-15 · 3 obs

● 2008-03-15 15:25:18
○ 2015-08-12 12:13:12
○ 2026-03-27 18:03:26

○NSrgp2.stargate.com2008-03-15 → 2008-03-15 · 3 obs

● 2008-03-15 15:25:18
○ 2015-08-12 12:13:12
○ 2026-03-27 18:03:26

●MXcustmx.cscdns.net2020-04-08 → 2026-03-27 · 3 obs

○ 2017-03-24 15:58:04
● 2020-04-08 03:57:26
● 2026-03-27 18:03:26

○MXmail.xyz.xyz2008-03-15 → 2008-03-15 · 3 obs

● 2008-03-15 15:25:18
○ 2015-08-12 12:13:12
○ 2026-03-27 18:03:26

○MXmailstore1.secureserver.net2015-08-12 → 2017-03-24 · 5 obs

○ 2008-03-15 15:25:18
● 2015-08-12 12:13:12
● 2017-03-24 15:58:04
○ 2020-04-08 03:57:26
○ 2026-03-27 18:03:26

○MXsmtp.secureserver.net2015-08-12 → 2017-03-24 · 5 obs

○ 2008-03-15 15:25:18
● 2015-08-12 12:13:12
● 2017-03-24 15:58:04
○ 2020-04-08 03:57:26
○ 2026-03-27 18:03:26

●A165.160.13.202020-04-08 → 2026-03-27 · 3 obs

○ 2017-03-24 15:58:04
● 2020-04-08 03:57:26
● 2026-03-27 18:03:26

●A165.160.15.202020-04-08 → 2026-03-27 · 3 obs

○ 2017-03-24 15:58:04
● 2020-04-08 03:57:26
● 2026-03-27 18:03:26

○A184.168.221.72017-03-24 → 2017-03-24 · 4 obs

○ 2016-03-02 02:53:54
● 2017-03-24 15:58:04
○ 2020-04-08 03:57:26
○ 2026-03-27 18:03:26

○A209.85.51.1712008-03-15 → 2008-03-15 · 3 obs

● 2008-03-15 15:25:18
○ 2015-08-12 12:13:12
○ 2026-03-27 18:03:26

○A216.84.234.1012015-08-12 → 2016-03-02 · 5 obs

○ 2008-03-15 15:25:18
● 2015-08-12 12:13:12
● 2016-03-02 02:53:54
○ 2017-03-24 15:58:04
○ 2026-03-27 18:03:26

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
flashcalc.com	dns1.cscdns.net, dns2.cscdns.net	-

✅ Authoritative Response

Server:156.154.130.100

NS records: dns1.cscdns.net, dns2.cscdns.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for flashcalc.com (unsigned zone)

⏱️ Timing

Total: 467ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`165.160.13.20, 165.160.15.20`
NS	2	`dns1.cscdns.net, dns2.cscdns.net`
MX	1	`custmx.cscdns.net (pri: 10)`
SOA	1	`dns1.cscdns.net hostmaster.cscdns.net`

Analysis

IP Addresses

flashcalc.com has two IP numbers: 165.160.13.20 and 165.160.15.20.

Other host names, for instance mail.generic-sovaldi.com, osram.co, pall-medical.us, incorproate.org and wwwtruistcf.org share IP numbers with flashcalc.com.

Name Servers

flashcalc.com's delegation uses two name servers: dns1.cscdns.net and dns2.cscdns.net.

flashcalc.com uses the same name server setup as other domains, such as fxusa.us, chimerix.net, husqvarnadealers.nl, livingandgiving.net and thinkoutsidethebun.com.

flashcalc.com shares name servers with other domains at least partially, for example 5hronline.com, edokeefe.net and budweiserbeer.dk.

Host names with two IPs:

dns1.cscdns.net points to 2610:a1:1022::100 and 156.154.130.100

dns2.cscdns.net points to 2610:a1:1023::100 and 156.154.131.100

Mail Servers

A single mail server handles flashcalc.com, custmx.cscdns.net.

flashcalc.com shares the same mail server setup as other domains, for instance haystaxationpersonnel.com, bankingonlinetruist.org, blacksparksolutions.com, sentimental.flowers and strategicex.com.

Host name custmx.cscdns.net resolves to a single IP: 198.58.121.58.

flashcalc.com - robtex.com

flashcalc.com

com

Same first word

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

IP Addresses

Name Servers

Mail Servers

`flashcalc.com`

`com`