`bk-engineering.ch`

DNSSEC	⚠️ Not signed
A	94.126.20.68^{🇨🇭 ASN-METANET94.126.16.0/21 METANET AG, part of group.one}
NS	`ns1.virtualtec.ch` ⭐
		A	93.189.64.6^{🇨🇭 VIRTUALTEC93.189.64.0/21 VirtualTec Solutions AG}
			PTR	`ns1.virtualtec.ch`
NS	`ns1.onflow.ch`
		A	93.189.64.6^{🇨🇭 VIRTUALTEC93.189.64.0/21 VirtualTec Solutions AG}
			PTR	`ns1.virtualtec.ch`
NS	`ns2.onflow.ch`
		A	93.189.66.16^{🇨🇭 VIRTUALTEC93.189.64.0/21 VirtualTec Solutions AG}
			PTR	`ns2.virtualtec.ch`
MX	`bkengineering-ch0e.mail.protection.outlook.com` ⭐
		A	2a01:111:f403:ca04::^{🇮🇪 Microsoft2a01:111:f000::/36}
			PTR	`mail-db3pr0202cu00100.inbound.protection.outlook.com`
		A	2a01:111:f403:ca04::a^{🇮🇪 Microsoft2a01:111:f000::/36}
			PTR	`mail-du0pr03cu00102.inbound.protection.outlook.com`
		A	2a01:111:f403:ca04::d^{🇮🇪 Microsoft2a01:111:f000::/36}
			PTR	`mail-db6pr03cu00105.inbound.protection.outlook.com`
		A	2a01:111:f403:ca04::e^{🇮🇪 Microsoft2a01:111:f000::/36}
			PTR	`mail-db8pr02cu00106.inbound.protection.outlook.com`
		A	52.101.68.3^{🇮🇪 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-db7pr03cu00403.inbound.protection.outlook.com`
		A	52.101.68.36^{🇮🇪 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-db5pr02cu00104.inbound.protection.outlook.com`
		A	52.101.73.4^{🇳🇱 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-am0pr83cu00404.inbound.protection.outlook.com`
		A	52.101.73.26^{🇳🇱 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-as9pr05cu01302.inbound.protection.outlook.com`
MX	`mx100.virtualtec.ch`⁽¹⁰⁾
		A	93.189.66.68^{🇨🇭 VIRTUALTEC93.189.64.0/21 VirtualTec Solutions AG}
			PTR	`zrhcz-mx11.virtualtec.ch`
		A	93.189.66.69^{🇨🇭 VIRTUALTEC93.189.64.0/21 VirtualTec Solutions AG}
			PTR	`zrhcz-mx12.virtualtec.ch`
		A	93.189.66.72^{🇨🇭 VIRTUALTEC93.189.64.0/21 VirtualTec Solutions AG}
			PTR	`zrhcz-mx41.virtualtec.ch`
		A	93.189.66.74^{🇨🇭 VIRTUALTEC93.189.64.0/21 VirtualTec Solutions AG}
			PTR	`zrhcz-mx13.virtualtec.ch`
MX	`mx200.virtualtec.ch`⁽¹⁰⁰⁾
		A	93.189.66.70^{🇨🇭 VIRTUALTEC93.189.64.0/21 VirtualTec Solutions AG}
			PTR	`zrhcz-mx21.virtualtec.ch`
		A	93.189.66.71^{🇨🇭 VIRTUALTEC93.189.64.0/21 VirtualTec Solutions AG}
			PTR	`zrhcz-mx22.virtualtec.ch`
		A	93.189.66.73^{🇨🇭 VIRTUALTEC93.189.64.0/21 VirtualTec Solutions AG}
			PTR	`zrhcz-mx42.virtualtec.ch`
		A	93.189.66.75^{🇨🇭 VIRTUALTEC93.189.64.0/21 VirtualTec Solutions AG}
			PTR	`zrhcz-mx23.virtualtec.ch`
MX	`mx.virtualtec.ch`⁽²⁰⁰⁾
		A	93.189.64.11^{🇨🇭 VIRTUALTEC93.189.64.0/21 VirtualTec Solutions AG}
			PTR	`zrhcz-mx1.virtualtec.ch`
		A	93.189.64.12^{🇨🇭 VIRTUALTEC93.189.64.0/21 VirtualTec Solutions AG}
			PTR	`zrhcz-mx2.virtualtec.ch`
		A	93.189.64.21^{🇨🇭 VIRTUALTEC93.189.64.0/21 VirtualTec Solutions AG}
			PTR	`zrhcz-mx3.virtualtec.ch`
		A	93.189.64.141^{🇨🇭 VIRTUALTEC93.189.64.0/21 VirtualTec Solutions AG}
			PTR	`zrhcz-mx4.virtualtec.ch`
TXT	`v=spf1 include:spf.protection.outlook.com -all`
TXT	`MS=ms54355735`
SOA	`ns1.virtualtec.ch`hostmaster@bk-engineering.ch 2020-07-27 #2

`ch`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.nic.ch` ⭐
	NS	`b.nic.ch`
	NS	`d.nic.ch`
	NS	`e.nic.ch`
	NS	`f.nic.ch`
	SOA	`a.nic.ch`dns-operation@switch.ch 2026-08-04 #28

Same first word

bk-engineering.ch

bk-engineering.de

bk-engineering.eu

bk-engineering.dk

Similar names

kb-engineering.com

DNS History

9 records (8 active, 1 former)

●NSns1.onflow.ch2015-07-14 → 2026-08-04 · 2 obs

● 2015-07-14 16:19:06
● 2026-08-04 12:15:58

●NSns1.virtualtec.ch2015-07-14 → 2026-08-04 · 2 obs

● 2015-07-14 16:19:06
● 2026-08-04 12:15:58

●NSns2.onflow.ch2015-07-14 → 2026-08-04 · 2 obs

● 2015-07-14 16:19:06
● 2026-08-04 12:15:58

●MXbkengineering-ch0e.mail.protection.outlook.com2015-12-08 → 2026-08-04 · 3 obs

○ 2015-07-14 16:19:06
● 2015-12-08 16:52:52
● 2026-08-04 12:15:58

●MXmx.virtualtec.ch2015-07-14 → 2026-08-04 · 2 obs

● 2015-07-14 16:19:06
● 2026-08-04 12:15:58

●MXmx100.virtualtec.ch2015-07-14 → 2026-08-04 · 2 obs

● 2015-07-14 16:19:06
● 2026-08-04 12:15:58

●MXmx200.virtualtec.ch2015-07-14 → 2026-08-04 · 2 obs

● 2015-07-14 16:19:06
● 2026-08-04 12:15:58

○A93.189.66.642015-07-14 → 2017-04-06 · 4 obs

● 2015-07-14 16:19:06
● 2017-04-06 14:43:06
○ 2026-05-02 02:31:06
○ 2026-08-04 12:15:58

●A94.126.20.682026-05-02 → 2026-08-04 · 3 obs

○ 2017-04-06 14:43:06
● 2026-05-02 02:31:06
● 2026-08-04 12:15:58

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
ch	a.nic.ch, b.nic.ch, d.nic.ch, e.nic.ch...	-
bk-engineering.ch	ns1.onflow.ch, ns2.onflow.ch	2 records

✅ Authoritative Response

Server:93.189.66.16

NS records: ns1.onflow.ch, ns2.onflow.ch

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for bk-engineering.ch (unsigned zone)

⏱️ Timing

Total: 571ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`94.126.20.68`
NS	2	`ns2.onflow.ch, ns1.onflow.ch`
MX	4	`mx200.virtualtec.ch (pri: 200), mx100.virtualtec.ch (pri: 100)...`
TXT	2	`MS=ms54355735, v=spf1 include:spf.protection.outlook.co`
SOA	1	`ns1.virtualtec.ch hostmaster.bk-engineer`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns2.onflow.ch, ns1.onflow.ch)

Analysis

IP Addresses

bk-engineering.ch points to a single IP number: 94.126.20.68.

Additional host names — swidex.ch, wbcag.ch, spaetz.ch and two others — share IP numbers with bk-engineering.ch.

Name Servers

Three name servers are authoritative for bk-engineering.ch: ns1.onflow.ch, ns2.onflow.ch and ns1.virtualtec.ch.

There is at least partial name server overlap between bk-engineering.ch and other domains — hw-r.ch, bio-familia.com, wuennewil-flamatt.ch and two more among them.

These name servers are frequently paired with the name servers ns2.virtualtec.ch, ns4.graphic-studio.ch, ns5.graphic-studio.ch and two others.

ns1.onflow.ch, ns2.onflow.ch and ns1.virtualtec.ch each resolve to a single IP address: ns1.onflow.ch resolves to 93.189.64.6, ns2.onflow.ch resolves to 93.189.66.16 and ns1.virtualtec.ch resolves to 93.189.64.6.

These two host names — ns1.onflow.ch and ns1.virtualtec.ch — each point to 93.189.64.6 IP addresses.

Mail Servers

Mail for bk-engineering.ch is handled by four mail servers: mx100.virtualtec.ch, mx200.virtualtec.ch, mx.virtualtec.ch and bkengineering-ch0e.mail.protection.outlook.com.

bk-engineering.ch shares mail servers — at least in part — with other domains, including textedlimited.co.uk, tkgs.ch, vhost31.dux.virtualtec.ch and two others.

These mail servers are frequently seen alongside the mail servers mx.webone.ch.

Host names with 8 IP numbers:

bkengineering-ch0e.mail.protection.outlook.com carries IP addresses 52.101.68.3, 52.101.68.36 and 52.101.73.4, with 5 other addresses beyond those.

Host names resolving to four IP addresses:

mx100.virtualtec.ch resolves to four IP addresses — 93.189.66.68, 93.189.66.69, 93.189.66.72 and 93.189.66.74.

mx200.virtualtec.ch resolves to four IP addresses — 93.189.66.70, 93.189.66.71, 93.189.66.73 and 93.189.66.75.

mx.virtualtec.ch resolves to four IP addresses — 93.189.64.11, 93.189.64.12, 93.189.64.21 and 93.189.64.141.

bk-engineering.ch - robtex.com