`sio-engineering.com`

DNSSEC	⚠️ Not signed
A	2001:8d8:100f:f000::200^{🇩🇪 IONOS-AS2001:8d8::/32 DE-IONOS-20020910}
		PTR	`2001-08d8-100f-f000-0000-0000-0000-0200.elastic-ssl.ui-r.com`
A	217.160.0.63^{🇩🇪 IONOS-AS217.160.0.0/16 IONOS-PA-3}
NS	`docks20.rzone.de` ⭐
		A	2001:8d8:fe:53:5747:2a74:d:20^{🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific}
			PTR	`docks20.rzone.de`
		A	217.160.80.147^{🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific}
			PTR	`docks20.rzone.de`
NS	`shades06.rzone.de`
		A	2607:f1c0:fe:53:185:132:34:133^{🇺🇸 IONOS-ANYCAST2607:f1c0:fe::/47 AS8560 global anycast services (more specific) 1&1 IONOS Inc. 701 Lee Rd, Suite 300 Chesterbrook, PA 19087 US}
			PTR	`shades06.rzone.de`
		A	185.132.34.133^{🇩🇪 IONOS-ANYCAST185.132.32.0/22 IONOS DNSAS (eBGP DNS)}
			PTR	`shades06.rzone.de`
MX	`smtpin.rzone.de` ⭐
		A	2a01:238:20a:202:50f0::1097^{🇩🇪 STRATO2a01:238:20a::/48 Strato AG}
			PTR	`smtpin.rzone.de`
		A	81.169.145.97^{🇩🇪 STRATO81.169.144.0/22 AG}
			PTR	`smtpin.rzone.de`
SOA	`docks20.rzone.de`hostmaster@strato-rz.de 2020-06-07 #15

`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=1781565375

Previously MX for

sio-engineering.com

Same first word

sio-engineering.com

DNS History

13 records (5 active, 8 former)

●NSdocks20.rzone.de2016-04-01 → 2026-06-15 · 3 obs

○ 2015-12-31 20:52:06
● 2016-04-01 21:38:50
● 2026-06-15 23:30:10

○NSns.stratoserver.net2015-06-12 → 2015-12-31 · 4 obs

● 2015-06-12 00:02:16
● 2015-12-31 20:52:06
○ 2016-04-01 21:38:50
○ 2026-06-15 23:30:10

○NSns2.stratoserver.net2015-06-12 → 2015-12-31 · 4 obs

● 2015-06-12 00:02:16
● 2015-12-31 20:52:06
○ 2016-04-01 21:38:50
○ 2026-06-15 23:30:10

●NSshades06.rzone.de2016-04-01 → 2026-06-15 · 3 obs

○ 2015-12-31 20:52:06
● 2016-04-01 21:38:50
● 2026-06-15 23:30:10

○MXsio-engineering.com2015-06-12 → 2015-12-31 · 4 obs

● 2015-06-12 00:02:16
● 2015-12-31 20:52:06
○ 2016-04-01 21:38:50
○ 2026-06-15 23:30:10

●MXsmtpin.rzone.de2016-04-01 → 2026-06-15 · 3 obs

○ 2015-12-31 20:52:06
● 2016-04-01 21:38:50
● 2026-06-15 23:30:10

●A2001:8d8:100f:f000::2002026-02-23 → 2026-06-15 · 3 obs

○ 2017-04-20 17:04:32
● 2026-02-23 16:30:00
● 2026-06-15 23:30:10

●A217.160.0.632026-02-23 → 2026-06-15 · 3 obs

○ 2017-04-20 17:04:32
● 2026-02-23 16:30:00
● 2026-06-15 23:30:10

○A2a01:238:20a:202:1152::2026-02-23 → 2026-06-15 · 2 obs

○ 2026-02-23 16:30:00
○ 2026-06-15 23:30:10

○A2a01:238:20a:202:1162::2016-04-01 → 2017-04-20 · 5 obs

○ 2015-12-31 20:52:06
● 2016-04-01 21:38:50
● 2017-04-20 17:04:32
○ 2026-02-23 16:30:00
○ 2026-06-15 23:30:10

○A81.169.145.1522026-02-23 → 2026-06-15 · 2 obs

○ 2026-02-23 16:30:00
○ 2026-06-15 23:30:10

○A81.169.145.1622016-04-01 → 2017-04-20 · 5 obs

○ 2015-12-31 20:52:06
● 2016-04-01 21:38:50
● 2017-04-20 17:04:32
○ 2026-02-23 16:30:00
○ 2026-06-15 23:30:10

○A85.214.58.1702015-06-12 → 2015-12-31 · 4 obs

● 2015-06-12 00:02:16
● 2015-12-31 20:52:06
○ 2016-04-01 21:38:50
○ 2026-06-15 23:30:10

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
sio-engineering.com	shades06.rzone.de, docks20.rzone.de	-

✅ Authoritative Response

Server:185.132.34.133

NS records: shades06.rzone.de, docks20.rzone.de

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for sio-engineering.com (unsigned zone)

⏱️ Timing

Total: 724ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`217.160.0.63`
AAAA	1	`2001:8d8:100f:f000::200`
NS	2	`shades06.rzone.de, docks20.rzone.de`
MX	1	`smtpin.rzone.de (pri: 5)`
SOA	1	`docks20.rzone.de hostmaster.strato-rz.de`

Analysis

IP Addresses

sio-engineering.com has two IP addresses: 217.160.0.63 and 2001:8d8:100f:f000::200

rheincafe.de, cooltureclub.com, lacoquetterie.com and two other host names share IP numbers with sio-engineering.com.

Name Servers

sio-engineering.com is served by two delegated name servers, docks20.rzone.de and shades06.rzone.de.

sio-engineering.com uses the same name servers as several other domains — among them ppu.de, colaco.de, maktoub.de and two more.

At least some of sio-engineering.com's name servers are shared with other domains, for example weltreiseshop.de, slave-one.de, italpark.de and two more.

These name servers tend to co-occur with docks16.rzone.de, shades13.rzone.de, shades01.rzone.de and 7 other name servers in the same DNS delegations.

Each of the two host names carries two IP addresses: docks20.rzone.de points to 217.160.80.147 and 2001:8d8:fe:53:5747:2a74:d:20, and shades06.rzone.de points to 185.132.34.133 and 2607:f1c0:fe:53:185:132:34:133.

Mail Servers

Mail for sio-engineering.com is handled by a single mail server, smtpin.rzone.de.

sio-engineering.com uses an identical mail server configuration to several other domains — among them bierewirtz.de, two-times.de, koffino.com and two more.

sio-engineering.com overlaps on mail servers with certain other domains, nexusmg.net among them.

smtpin.rzone.de directs to two IP numbers, 81.169.145.97 and 2a01:238:20a:202:50f0::1097.

sio-engineering.com - robtex.com