`sii-engineering.de`

DNSSEC	⚠️ Not signed
A	2606:4700:3033::6815:5c58^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3033::ac43:bedc^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.92.88^{Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.190.220^{🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`kiki.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3ab4^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kiki.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0b4^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`kiki.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20b4^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`kiki.ns.cloudflare.com`
		A	108.162.192.180^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kiki.ns.cloudflare.com`
		A	172.64.32.180^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kiki.ns.cloudflare.com`
		A	173.245.58.180^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kiki.ns.cloudflare.com`
NS	`nash.ns.cloudflare.com`
		A	2606:4700:58::adf5:3bd1^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nash.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c1d1^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`nash.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:21d1^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`nash.ns.cloudflare.com`
		A	108.162.193.209^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nash.ns.cloudflare.com`
		A	172.64.33.209^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nash.ns.cloudflare.com`
		A	173.245.59.209^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nash.ns.cloudflare.com`
MX	`siiengineering-de0i.mail.protection.outlook.com` ⭐
		A	2a01:111:f403:ca1e::^{🇫🇷 Microsoft2a01:111:f000::/36}
			PTR	`mail-mrzp264cu00100.inbound.protection.outlook.com`
		A	2a01:111:f403:ca25::^{🇫🇷 Microsoft2a01:111:f000::/36}
			PTR	`mail-pa5p264cu00200.inbound.protection.outlook.com`
		A	2a01:111:f403:ca25::1^{🇫🇷 Microsoft2a01:111:f000::/36}
			PTR	`mail-pr0p264cu01301.inbound.protection.outlook.com`
		A	2a01:111:f403:ca25::2^{🇫🇷 Microsoft2a01:111:f000::/36}
			PTR	`mail-paup264cu00202.inbound.protection.outlook.com`
		A	52.101.164.0^{🇫🇷 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-mrzp264cu00100.inbound.protection.outlook.com`
		A	52.101.166.0^{🇫🇷 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-pa5p264cu00200.inbound.protection.outlook.com`
		A	52.101.166.1^{🇫🇷 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-pr0p264cu01301.inbound.protection.outlook.com`
		A	52.101.166.2^{🇫🇷 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-paup264cu00202.inbound.protection.outlook.com`
TXT	`MS=ms32018947`
TXT	`MS=ms63083956`
TXT	`dropbox-domain-verification=9ervbw26ymdo`
TXT	`google-site-verification=Sqo4Q_qSqQJZHqI9osqigfw-Y2J8F8zMch5irkfI7dQ`
TXT	`google-site-verification=vyjbpwew0yagRYY7ic-jfwWpJ83SGdFN7j09Da6QBco`
TXT	`have-i-been-pwned-verification=aae93b80c58e57c7d47669b399698186`
TXT	`v=spf1 ip4:91.250.84.180 include:spf.protection.outlook.com include:spf.prote...`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4	104.21.92.88, 172.67.190.220
		IPv6	2606:4700:3033::6815:5c58, 2606:4700:3033::ac43:bedc
SOA	`kiki.ns.cloudflare.com`dns@cloudflare.com serial=2398766262

`de`

	DNSSEC	🔒 Signed (DS record present)
	NS	`f.nic.de` ⭐
	NS	`a.nic.de`
	NS	`l.de.net` ⚠️ Not in parent delegation
	NS	`n.de.net` ⚠️ Not in parent delegation
	NS	`s.de.net` ⚠️ Not in parent delegation
	NS	`z.nic.de`
	SOA	`f.nic.de`dns-operations@denic.de serial=1773553752

Subdomains

mail.sii-engineering.de

stats.sii-engineering.de

Same first word

sii-engineering.de

DNS History

12 records (7 active, 5 former)

●NSkiki.ns.cloudflare.com2017-01-15 → 2026-03-22 · 2 obs

● 2017-01-15 07:30:06
● 2026-03-22 17:15:08

●NSnash.ns.cloudflare.com2017-01-15 → 2026-03-22 · 2 obs

● 2017-01-15 07:30:06
● 2026-03-22 17:15:08

○MXmail.sii-engineering.de2017-01-15 → 2017-01-15 · 3 obs

● 2017-01-15 07:30:06
○ 2026-02-23 13:06:46
○ 2026-03-22 17:15:08

●MXsiiengineering-de0i.mail.protection.outlook.com2026-02-23 → 2026-03-22 · 3 obs

○ 2017-01-15 07:30:06
● 2026-02-23 13:06:46
● 2026-03-22 17:15:08

●A104.21.92.882026-02-23 → 2026-03-22 · 3 obs

○ 2017-01-15 07:30:06
● 2026-02-23 13:06:46
● 2026-03-22 17:15:08

○A104.27.190.1432017-01-15 → 2017-01-15 · 3 obs

● 2017-01-15 07:30:06
○ 2026-02-23 13:06:46
○ 2026-03-22 17:15:08

○A104.27.191.1432017-01-15 → 2017-01-15 · 3 obs

● 2017-01-15 07:30:06
○ 2026-02-23 13:06:46
○ 2026-03-22 17:15:08

●A172.67.190.2202026-02-23 → 2026-03-22 · 3 obs

○ 2017-01-15 07:30:06
● 2026-02-23 13:06:46
● 2026-03-22 17:15:08

○A2400:cb00:2048:1::681b:be8f2017-01-15 → 2017-01-15 · 3 obs

● 2017-01-15 07:30:06
○ 2026-02-23 13:06:46
○ 2026-03-22 17:15:08

○A2400:cb00:2048:1::681b:bf8f2017-01-15 → 2017-01-15 · 3 obs

● 2017-01-15 07:30:06
○ 2026-02-23 13:06:46
○ 2026-03-22 17:15:08

●A2606:4700:3033::6815:5c582026-02-23 → 2026-03-22 · 3 obs

○ 2017-01-15 07:30:06
● 2026-02-23 13:06:46
● 2026-03-22 17:15:08

●A2606:4700:3033::ac43:bedc2026-02-23 → 2026-03-22 · 3 obs

○ 2017-01-15 07:30:06
● 2026-02-23 13:06:46
● 2026-03-22 17:15:08

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
de	a.nic.de, f.nic.de, z.nic.de	-
sii-engineering.de	kiki.ns.cloudflare.com, nash.ns.cloudflare.com	-

✅ Authoritative Response

Server: 173.245.58.180

NS records: kiki.ns.cloudflare.com, nash.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for sii-engineering.de (unsigned zone)

⏱️ Timing

Total: 939ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.92.88, 172.67.190.220`
AAAA	2	`2606:4700:3033::6815:5c58, 2606:4700:3033::ac43:bedc`
NS	2	`kiki.ns.cloudflare.com, nash.ns.cloudflare.com`
MX	1	`siiengineering-de0i.mail.protection.outl`
TXT	7	`MS=ms32018947, MS=ms63083956...`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`kiki.ns.cloudflare.com dns.cloudflare.co`

Analysis

Hierarchy

sii-engineering.de is a parent of mail.sii-engineering.de and stats.sii-engineering.de.

IP Addresses

sii-engineering.de maps to four IP numbers: 2606:4700:3033::6815:5c58, 2606:4700:3033::ac43:bedc, 104.21.92.88 and 172.67.190.220.

Other host names, for instance yumingzhuanfa.com, bestcentralfloridahomes.com, exa.to, godigit.io and vagahajomeonsolutions.digital share IP numbers with sii-engineering.de.

Name Servers

Two name servers kiki.ns.cloudflare.com and nash.ns.cloudflare.com handle delegation for sii-engineering.de.

sii-engineering.de uses the same name server setup as other domains, for example atol.waw.pl, thenester.com, domown.com, weixin.download and arcari.com.br.

sii-engineering.de partially shares name servers with other domains; examples include bilpos.com, elss.kz, goodgame.id, rickydsribshack.com and megatronicka.com.

These name servers are often used with the name servers walt.ns.cloudflare.com and aspen.ns.cloudflare.com.

Host names with six IP numbers: kiki.ns.cloudflare.com points to: 2606:4700:50::adf5:3ab4, 2803:f800:50::6ca2:c0b4, 2a06:98c1:50::ac40:20b4, 108.162.192.180, 172.64.32.180 and 173.245.58.180; nash.ns.cloudflare.com points to: 2606:4700:58::adf5:3bd1, 2803:f800:50::6ca2:c1d1, 2a06:98c1:50::ac40:21d1, 108.162.193.209, 172.64.33.209 and 173.245.59.209.

Mail Servers

sii-engineering.de is handled by a single mail server, siiengineering-de0i.mail.protection.outlook.com.

Hostname siiengineering-de0i.mail.protection.outlook.com points to eight IP numbers: 2a01:111:f403:ca1e::, 2a01:111:f403:ca25::, 2a01:111:f403:ca25::1, 2a01:111:f403:ca25::2, 52.101.164.0, 52.101.166.0, 52.101.166.1 and 52.101.166.2.

sii-engineering.de - robtex.com