`wtcs.fi`

DNSSEC	⚠️ Not signed
A	188.117.31.188^{🇫🇮 NBLNETWORKS-AS188.117.0.0/18 Nebula Oy}
		PTR	`whpro3-hki1.hosting.fi`
NS	`namesurfer.inet.fi` ⭐
		A	131.177.73.253^{🇫🇮 TSF-IP-Core131.177.0.0/16 DN-131177-BLOCK Telia Finland Oyj 00510 TELIA FINLAND}
NS	`ns1-fin.global.sonera.fi`
		A	2001:2060:ffdd:a01::53^{🇫🇮 TSF-IP-Core2001:2060::/32 TELIA-FI-NET-IPv6-BLK Telia Finland Oyj}
			PTR	`ns1-fin.global.sonera.fi`
		A	193.210.18.31^{🇫🇮 TSF-IP-Core193.210.18.0/24 Telia Finland Oyj Internet Service Production}
NS	`ns1-swe.global.sonera.se`
		A	2001:2040:c000:63::1^{🇸🇪 TELIANET-SWEDEN2001:2040::/32 TELIANET-BLK}
			PTR	`ns1-swe.global.sonera.se`
		A	213.64.37.28^{🇸🇪 TELIANET-SWEDEN213.64.0.0/14 TELIANET-BLK}
			PTR	`ns1-swe.global.sonera.se`
NS	`ns2-fin.global.sonera.fi`
		A	2001:2060:ffdd:a02::53^{🇫🇮 TSF-IP-Core2001:2060::/32 TELIA-FI-NET-IPv6-BLK Telia Finland Oyj}
			PTR	`ns2-fin.global.sonera.fi`
		A	195.156.148.158^{🇫🇮 TSF-IP-Core195.156.0.0/16 DN-195156-BLOCK Telia Finland Oyj}
			PTR	`ns2-fin.global.sonera.fi`
NS	`ns2-usa.global.sonera.net`
		A	212.169.92.213^{🇳🇴 NETCOM-AS212.169.64.0/18 NetCom Mobile Broadband}
MX	`wtcs-fi.mail.protection.outlook.com` ⭐
		A	2a01:111:f403:ca04::b^{🇮🇪 Microsoft2a01:111:f000::/36}
			PTR	`mail-dbbpr03cu00103.inbound.protection.outlook.com`
		A	2a01:111:f403:ca04::c^{🇮🇪 Microsoft2a01:111:f000::/36}
			PTR	`mail-db9pr02cu00204.inbound.protection.outlook.com`
		A	2a01:111:f403:ca09::6^{🇳🇱 Microsoft2a01:111:f000::/36}
			PTR	`mail-am4pr0401cu00106.inbound.protection.outlook.com`
		A	2a01:111:f403:ca09::f^{🇳🇱 Microsoft2a01:111:f000::/36}
			PTR	`mail-am7pr05cu00307.inbound.protection.outlook.com`
		A	52.101.68.10^{🇮🇪 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-dbbpr03cu00102.inbound.protection.outlook.com`
		A	52.101.68.27^{🇮🇪 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-db7pr03cu00503.inbound.protection.outlook.com`
		A	52.101.73.2^{🇳🇱 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-as9pr07cu00302.inbound.protection.outlook.com`
		A	52.101.73.153^{🇳🇱 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-as8pr05cu00401.inbound.protection.outlook.com`
TXT	`MS=ms68057489`
TXT	`v=spf1 include:spf.protection.outlook.com include:spf.magiccloud.fi include:s...`
SOA	`namesurfer.inet.fi`hostmaster@telia.fi 2025-08-07 #14

`fi`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.fi` ⭐
	NS	`b.fi`
	NS	`c.fi`
	NS	`d.fi`
	NS	`e.fi`
	NS	`f.fi`
	NS	`g.fi`
	NS	`i.fi`
	NS	`j.fi`
	NS	`k.fi`
	TXT	`whois.fi`
	TXT	`https://domain.fi/`
	SOA	`a.fi`fi-domain-tech@ficora.fi 2026-07-16 #19

Same first word

wtcs.org

wtcs.de

wtcs.cn

wtcs.cl

wtcs.net

wtcs.eu

wtcs.in

wtcs.fi

wtcs.ca

wtcs.org.uk

Similar names

cwts.edu

stcw.us

wcst.de

tcsw.ch

cwst.be

twcs.catholic.edu.au

stcw.at

stcw.cn

twcs.com.br

twcs.nl

cwst.co

cstw.com

cwst.nl

wstc.info

cwts.ca

swct.org

sctw.com.au

wcts.com.au

sctw.ch

twcs.com.au

stcw.online

wtsc.com

wcst.com

wstc.nl

tcsw.de

cwts.org

cstw.de

tswc.org

wstc.co

wsct.at

twsc.nl

wsct.com

scwt.net

wcts.co

stcw.com

swct.com

sctw.nl

tcsw.org

cwst.cc

tcsw.edu.in

cwst.ie

twsc.net.cn

wtsc.com.au

twsc.org.uk

tcsw.cn

swtc.vip

ctws.de

scwt.info

tcsw.org.uk

wsct.cn

swtc.nl

tswc.com

stcw.org

tscw.com

cwts.cn

wstc.net

cwst.cz

wtsc.info

swtc.ac.th

wtsc.ca

swtc.edu

twsc.ca

tcws.net

wcst.co.in

cwst.fr

cwts.com

wsct.eu

scwt.net.cn

swtc.com

twcs.cc

ctws.me

wstc.us

cwts.nl

wtsc.nl

wstc.org.au

cstw.com.cn

cwts.net

twsc.co.za

cwts.info

tcsw.com.cn

stcw.ru

ctws.kasserver.com

cwst.de

cstw.cn

swtc.jp

sctw.net

cwts.com.au

scwt.com.au

wsct.com.au

cwst.at

cwst.co.il

ctws.cn

ctsw.org.uk

DNS History

11 records (7 active, 4 former)

●NSnamesurfer.inet.fi2026-06-09 → 2026-07-16 · 3 obs

○ 2021-10-25 08:32:36
● 2026-06-09 08:31:22
● 2026-07-16 03:23:52

○NSns.nebula.fi2015-07-20 → 2021-10-25 · 4 obs

● 2015-07-20 11:44:16
● 2021-10-25 08:32:36
○ 2026-06-09 08:31:22
○ 2026-07-16 03:23:52

●NSns1-fin.global.sonera.fi2026-06-09 → 2026-07-16 · 3 obs

○ 2021-10-25 08:32:36
● 2026-06-09 08:31:22
● 2026-07-16 03:23:52

●NSns1-swe.global.sonera.se2026-06-09 → 2026-07-16 · 3 obs

○ 2021-10-25 08:32:36
● 2026-06-09 08:31:22
● 2026-07-16 03:23:52

●NSns2-fin.global.sonera.fi2026-06-09 → 2026-07-16 · 3 obs

○ 2021-10-25 08:32:36
● 2026-06-09 08:31:22
● 2026-07-16 03:23:52

●NSns2-usa.global.sonera.net2026-06-09 → 2026-07-16 · 3 obs

○ 2021-10-25 08:32:36
● 2026-06-09 08:31:22
● 2026-07-16 03:23:52

○NSns2.nebula.fi2015-07-20 → 2021-10-25 · 4 obs

● 2015-07-20 11:44:16
● 2021-10-25 08:32:36
○ 2026-06-09 08:31:22
○ 2026-07-16 03:23:52

○MXmailserver23.nebula.fi2015-07-20 → 2017-09-06 · 4 obs

● 2015-07-20 11:44:16
● 2017-09-06 15:44:34
○ 2021-10-25 08:32:36
○ 2026-07-16 03:23:52

●MXwtcs-fi.mail.protection.outlook.com2021-10-25 → 2026-07-16 · 3 obs

○ 2017-09-06 15:44:34
● 2021-10-25 08:32:36
● 2026-07-16 03:23:52

●A188.117.31.1882017-04-25 → 2026-07-16 · 3 obs

○ 2016-08-25 10:23:24
● 2017-04-25 07:47:12
● 2026-07-16 03:23:52

○A83.145.246.1522015-07-20 → 2016-08-25 · 4 obs

● 2015-07-20 11:44:16
● 2016-08-25 10:23:24
○ 2017-04-25 07:47:12
○ 2026-07-16 03:23:52

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
fi	a.fi, b.fi, c.fi, d.fi...	-
wtcs.fi	ns1-fin.global.sonera.fi, ns1-swe.global.sonera.se, ns2-fin.global.sonera.fi, ns2-usa.global.sonera.net	4 records

✅ Authoritative Response

Server:212.169.92.213

NS records: ns1-fin.global.sonera.fi, ns1-swe.global.sonera.se, ns2-fin.global.sonera.fi, ns2-usa.global.sonera.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for wtcs.fi (unsigned zone)

⏱️ Timing

Total: 1196ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`188.117.31.188`
NS	4	`ns1-swe.global.sonera.se, ns2-fin.global.sonera.fi...`
MX	1	`wtcs-fi.mail.protection.outlook.com (pri`
TXT	2	`MS=ms68057489, v=spf1 include:spf.protection.outlook.co`
SOA	1	`namesurfer.inet.fi hostmaster.telia.fi`

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (ns1-fin.global.sonera.fi, ns2-fin.global.sonera.fi, ns1-fin.global.sonera.fi...)

Analysis

IP Addresses

wtcs.fi points to a single IP number: 188.117.31.188.

Additional host names — koskelin.fi, karolus.fi, lmsracingfi.virtualserver17.nebula.fi and two others — share IP numbers with wtcs.fi.

Name Servers

Delegation for wtcs.fi is to five name servers: namesurfer.inet.fi, ns1-fin.global.sonera.fi, ns2-fin.global.sonera.fi and two others.

At least some of wtcs.fi's name servers are shared with other domains, for example verkkolaskufoorumi.com, 89.194.in-addr.arpa, 138.165.195.in-addr.arpa and two more.

It is common for these name servers to be used in conjunction with the name servers ns2-usa.global.sonera.net, ns1-swe.global.sonera.se and nasu.intra.sonera.fi.

Host names with two IP numbers:

ns1-fin.global.sonera.fi points to 193.210.18.31 and 2001:2060:ffdd:a01::53.

ns2-fin.global.sonera.fi points to 195.156.148.158 and 2001:2060:ffdd:a02::53.

ns1-swe.global.sonera.se points to 213.64.37.28 and 2001:2040:c000:63::1.

Host names pointing to a single IP address:

namesurfer.inet.fi points to 131.177.73.253.

ns2-usa.global.sonera.net points to 212.169.92.213.