`calculationtools.com`

DNSSEC	⚠️ Not signed
A	83.143.219.48^{🇫🇮 GLESYS-FI-283.143.216.0/21}
		PTR	`host6.domain247.fi`
NS	`ns1.domain247.fi` ⭐
		A	2a02:750:23:111::111^{🇸🇪 GLESYS2a02:750::/29}
			PTR	`ns1.domain247.fi`
		A	46.246.110.111^{🇸🇪 GLESYS46.246.0.0/17 Portlane Network}
			PTR	`ns1.domain247.fi`
NS	`ns2.domain247.fi`
		A	2a00:1a28:100::31^{🇫🇮 GLESYS2a00:1a28::/32 Portlane Network}
			PTR	`ns2.domain247.fi`
		A	46.246.10.31^{🇫🇮 GLESYS46.246.0.0/17 Portlane Network}
			PTR	`ns2.domain247.fi`
MX	`mail.calculationtools.com` ⭐
		A	83.143.219.48^{🇫🇮 GLESYS-FI-283.143.216.0/21}
			PTR	`host6.domain247.fi`
TXT	`v=spf1 ip4:83.143.219.48 +a +mx ~all`
SOA	`ns1.domain247.fi`webmonster@momentdigital.fi 2026-07-31 #5

`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=1785494017

Previously MX for

calculationtools.com

Subdomains

mail.calculationtools.com

Same first word

calculationtools.com

DNS History

9 records (4 active, 5 former)

●NSns1.domain247.fi2026-03-03 → 2026-07-31 · 3 obs

○ 2020-03-15 05:01:46
● 2026-03-03 03:02:40
● 2026-07-31 10:58:30

●NSns2.domain247.fi2026-03-03 → 2026-07-31 · 3 obs

○ 2020-03-15 05:01:46
● 2026-03-03 03:02:40
● 2026-07-31 10:58:30

○NSns3.capnova.com2016-03-22 → 2020-03-15 · 4 obs

● 2016-03-22 10:16:22
● 2020-03-15 05:01:46
○ 2026-03-03 03:02:40
○ 2026-07-31 10:58:30

○NSns4.capnova.com2016-03-22 → 2020-03-15 · 4 obs

● 2016-03-22 10:16:22
● 2020-03-15 05:01:46
○ 2026-03-03 03:02:40
○ 2026-07-31 10:58:30

○MXcalculationtools.com2016-03-22 → 2026-03-24 · 4 obs

● 2016-03-22 10:16:22
● 2026-03-24 14:03:10
○ 2026-05-02 07:30:40
○ 2026-07-31 10:58:30

●MXmail.calculationtools.com2026-05-02 → 2026-07-31 · 3 obs

○ 2026-03-24 14:03:10
● 2026-05-02 07:30:40
● 2026-07-31 10:58:30

○A83.143.218.1152020-03-15 → 2020-03-15 · 4 obs

○ 2017-03-23 19:50:36
● 2020-03-15 05:01:46
○ 2026-03-03 03:02:40
○ 2026-07-31 10:58:30

○A83.143.218.1622016-03-22 → 2017-03-23 · 4 obs

● 2016-03-22 10:16:22
● 2017-03-23 19:50:36
○ 2020-03-15 05:01:46
○ 2026-07-31 10:58:30

●A83.143.219.482026-03-03 → 2026-07-31 · 3 obs

○ 2020-03-15 05:01:46
● 2026-03-03 03:02:40
● 2026-07-31 10:58:30

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
calculationtools.com	ns1.domain247.fi, ns2.domain247.fi	-

✅ Authoritative Response

Server:46.246.110.111

NS records: ns1.domain247.fi, ns2.domain247.fi

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for calculationtools.com (unsigned zone)

⏱️ Timing

Total: 618ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`83.143.219.48`
NS	2	`ns2.domain247.fi, ns1.domain247.fi`
MX	1	`mail.calculationtools.com (pri: 0)`
TXT	1	`v=spf1 ip4:83.143.219.48 +a +mx ~all`
SOA	1	`ns1.domain247.fi webmonster.momentdigita`

Analysis

Hierarchy

mail.calculationtools.com is delegated beneath calculationtools.com.

IP Addresses

calculationtools.com has exactly one IP address — 83.143.219.48.

host6.domain247.fi, mail.coplean.fi, lapuanhelemi.fi plus two other host names have IP numbers in common with calculationtools.com.

Name Servers

DNS delegation for calculationtools.com points to two name servers: ns1.domain247.fi and ns2.domain247.fi.

The name server configuration of calculationtools.com is shared with other domains, for instance jumbonapteekki.fi, korpiklaani.com, time4results.com and two others.

Some name servers delegated to calculationtools.com are also used by other domains, notably host4.domain247.fi and gancho.fi.

ns1.domain247.fi directs to 46.246.110.111 and 2a02:750:23:111::111. ns2.domain247.fi directs to 46.246.10.31 and 2a00:1a28:100::31. Each host name carries two IP addresses.

Mail Servers

calculationtools.com uses one mail server — mail.calculationtools.com.

mail.calculationtools.com has exactly one IP number: 83.143.219.48.

calculationtools.com - robtex.com