`softwareengineering.biz`

DNSSEC	⚠️ Not signed
A	2606:4700:3030::6815:4f45^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3031::ac43:a93d^{🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.79.69^{Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.169.61^{🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`bob.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b68^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`bob.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c168^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`bob.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2168^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`bob.ns.cloudflare.com`
		A	108.162.193.104^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`bob.ns.cloudflare.com`
		A	172.64.33.104^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`bob.ns.cloudflare.com`
		A	173.245.59.104^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`bob.ns.cloudflare.com`
NS	`sima.ns.cloudflare.com`
		A	2606:4700:50::adf5:3ade^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sima.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0de^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`sima.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20de^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`sima.ns.cloudflare.com`
		A	108.162.192.222^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sima.ns.cloudflare.com`
		A	172.64.32.222^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sima.ns.cloudflare.com`
		A	173.245.58.222^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sima.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.79.69, 172.67.169.61
		IPv6 hints	2606:4700:3030::6815:4f45, 2606:4700:3031::ac43:a93d
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=174, name=cloudflare-ech.com
SOA	`bob.ns.cloudflare.com`dns@cloudflare.com serial=2400384345

`biz`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.gtld.biz` ⭐
	NS	`b.gtld.biz`
	NS	`c.gtld.biz`
	NS	`m.gtld.biz`
	NS	`n.gtld.biz`
	NS	`w.gtld.biz`
	NS	`x.gtld.biz`
	NS	`y.gtld.biz`
	SOA	`a.gtld.biz`admin@tldns.godaddy serial=1776164219

Previously MX for

softwareengineering.biz

Same first word

softwareengineering.ca

softwareengineering.com

softwareengineering.info

softwareengineering.ie

softwareengineering.biz

Similar names

engineeringsoftware.org

engineeringsoftware.biz

engineeringsoftware.eu

DNS History

19 records (6 active, 13 former)

●NSbob.ns.cloudflare.com2026-03-05 → 2026-04-14 · 3 obs

○ 2017-11-28 15:52:16
● 2026-03-05 13:56:04
● 2026-04-14 11:11:08

○NSns1.sedoparking.com2016-01-23 → 2016-12-01 · 5 obs

○ 2015-11-01 11:16:54
● 2016-01-23 23:11:12
● 2016-12-01 21:58:36
○ 2017-11-28 15:52:16
○ 2026-04-14 11:11:08

○NSns1000.mochahost.com2015-06-14 → 2015-11-01 · 4 obs

● 2015-06-14 17:21:42
● 2015-11-01 11:16:54
○ 2016-01-23 23:11:12
○ 2026-04-14 11:11:08

○NSns2.sedoparking.com2016-01-23 → 2016-12-01 · 5 obs

○ 2015-11-01 11:16:54
● 2016-01-23 23:11:12
● 2016-12-01 21:58:36
○ 2017-11-28 15:52:16
○ 2026-04-14 11:11:08

○NSns2000.mochahost.com2015-06-14 → 2015-11-01 · 4 obs

● 2015-06-14 17:21:42
● 2015-11-01 11:16:54
○ 2016-01-23 23:11:12
○ 2026-04-14 11:11:08

●NSsima.ns.cloudflare.com2026-03-05 → 2026-04-14 · 3 obs

○ 2017-11-28 15:52:16
● 2026-03-05 13:56:04
● 2026-04-14 11:11:08

○MXlocalhost2016-12-01 → 2016-12-01 · 4 obs

○ 2016-04-11 11:42:18
● 2016-12-01 21:58:36
○ 2017-11-28 15:52:16
○ 2026-04-14 11:11:08

○MXmail.nickstel.com2016-01-23 → 2016-04-11 · 5 obs

○ 2015-11-01 11:16:54
● 2016-01-23 23:11:12
● 2016-04-11 11:42:18
○ 2016-12-01 21:58:36
○ 2026-04-14 11:11:08

○MXsoftwareengineering.biz2015-06-14 → 2015-11-01 · 4 obs

● 2015-06-14 17:21:42
● 2015-11-01 11:16:54
○ 2016-01-23 23:11:12
○ 2026-04-14 11:11:08

●A104.21.79.692026-03-05 → 2026-04-14 · 5 obs

○ 2017-11-28 15:52:16
● 2026-03-05 13:56:04
○ 2026-03-15 21:08:20
○ 2026-03-23 03:16:28
● 2026-04-14 11:11:08

●A172.67.169.612026-03-05 → 2026-04-14 · 5 obs

○ 2017-11-28 15:52:16
● 2026-03-05 13:56:04
○ 2026-03-15 21:08:20
○ 2026-03-23 03:16:28
● 2026-04-14 11:11:08

○A188.114.96.02026-03-15 → 2026-03-23 · 4 obs

○ 2026-03-05 13:56:04
● 2026-03-15 21:08:20
● 2026-03-23 03:16:28
○ 2026-04-14 11:11:08

○A188.114.97.02026-03-15 → 2026-03-23 · 4 obs

○ 2026-03-05 13:56:04
● 2026-03-15 21:08:20
● 2026-03-23 03:16:28
○ 2026-04-14 11:11:08

○A198.38.82.292015-06-14 → 2015-11-01 · 4 obs

● 2015-06-14 17:21:42
● 2015-11-01 11:16:54
○ 2016-01-23 23:11:12
○ 2026-04-14 11:11:08

●A2606:4700:3030::6815:4f452026-03-05 → 2026-04-14 · 5 obs

○ 2017-11-28 15:52:16
● 2026-03-05 13:56:04
○ 2026-03-15 21:08:20
○ 2026-03-23 03:16:28
● 2026-04-14 11:11:08

●A2606:4700:3031::ac43:a93d2026-03-05 → 2026-04-14 · 5 obs

○ 2017-11-28 15:52:16
● 2026-03-05 13:56:04
○ 2026-03-15 21:08:20
○ 2026-03-23 03:16:28
● 2026-04-14 11:11:08

○A2a06:98c1:3120::2026-03-15 → 2026-03-23 · 4 obs

○ 2026-03-05 13:56:04
● 2026-03-15 21:08:20
● 2026-03-23 03:16:28
○ 2026-04-14 11:11:08

○A2a06:98c1:3121::2026-03-15 → 2026-03-23 · 4 obs

○ 2026-03-05 13:56:04
● 2026-03-15 21:08:20
● 2026-03-23 03:16:28
○ 2026-04-14 11:11:08

○A72.52.4.1192016-01-23 → 2016-12-01 · 5 obs

○ 2015-11-01 11:16:54
● 2016-01-23 23:11:12
● 2016-12-01 21:58:36
○ 2017-11-28 15:52:16
○ 2026-04-14 11:11:08

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
biz	a.gtld.biz, b.gtld.biz, c.gtld.biz, m.gtld.biz...	-
softwareengineering.biz	sima.ns.cloudflare.com, bob.ns.cloudflare.com	-

✅ Authoritative Response

Server:108.162.192.222

NS records: sima.ns.cloudflare.com, bob.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for softwareengineering.biz (unsigned zone)

⏱️ Timing

Total: 678ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.79.69, 172.67.169.61`
AAAA	2	`2606:4700:3030::6815:4f45, 2606:4700:3031::ac43:a93d`
NS	2	`bob.ns.cloudflare.com, sima.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`bob.ns.cloudflare.com dns.cloudflare.com`

Analysis

IP Addresses

softwareengineering.biz points to four IP numbers: 2606:4700:3030::6815:4f45, 2606:4700:3031::ac43:a93d, 104.21.79.69 and 172.67.169.61.

Other host names, for instance gaianet.org, anlikj.com, mail.mereja.com, rawemoqameaconsulting36.click and ancientpeak9.xyz share IP numbers with softwareengineering.biz.

Name Servers

Delegation for softwareengineering.biz rests with two name servers, bob.ns.cloudflare.com and sima.ns.cloudflare.com.

softwareengineering.biz shares the same name server setup as other domains, including iraqi-datepalms.net, sdrta.org, salamandersworkshop.com, insolvencynotices.com.au and cebl.org.

softwareengineering.biz at least partially shares name servers with other domains, for instance zindarato.com, mega188joss.online, jeromefdn.org, b3f5.com and supertatie.com.

these name servers are commonly used with sterling.ns.cloudflare.com, owen.ns.cloudflare.com and mitch.ns.cloudflare.com.

Host names with six IP numbers: bob.ns.cloudflare.com points to: 2606:4700:58::adf5:3b68, 2803:f800:50::6ca2:c168, 2a06:98c1:50::ac40:2168, 108.162.193.104, 172.64.33.104 and 173.245.59.104. sima.ns.cloudflare.com points to: 2606:4700:50::adf5:3ade, 2803:f800:50::6ca2:c0de, 2a06:98c1:50::ac40:20de, 108.162.192.222, 172.64.32.222 and 173.245.58.222.

softwareengineering.biz - robtex.com