stlengineering.net - dns.ninja

`stlengineering.net`

DNSSEC	⚠️ Not signed
A	2606:4700:3033::6815:2e46^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3034::ac43:8810^{🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.46.70^{Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.136.16^{🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`kate.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3a7c^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kate.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c07c^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`kate.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:207c^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`kate.ns.cloudflare.com`
		A	108.162.192.124^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kate.ns.cloudflare.com`
		A	172.64.32.124^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kate.ns.cloudflare.com`
		A	173.245.58.124^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kate.ns.cloudflare.com`
NS	`mark.ns.cloudflare.com`
		A	2606:4700:58::adf5:3b82^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`mark.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c182^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`mark.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2182^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`mark.ns.cloudflare.com`
		A	108.162.193.130^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`mark.ns.cloudflare.com`
		A	172.64.33.130^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`mark.ns.cloudflare.com`
		A	173.245.59.130^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`mark.ns.cloudflare.com`
MX	`stlengineering-net.mail.protection.outlook.com` ⭐
		A	2a01:111:f403:c91d::^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-mw2pr04cu00100.inbound.protection.outlook.com`
		A	2a01:111:f403:c92c::2^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-dm2pr04cu00102.inbound.protection.outlook.com`
		A	2a01:111:f403:c946::6^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-ch5pr02cu00406.inbound.protection.outlook.com`
		A	2a01:111:f403:f905::3^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-dm5pr02cu00203.inbound.protection.outlook.com`
		A	52.101.8.42^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-dm6pr03cu00402.inbound.protection.outlook.com`
		A	52.101.10.1^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-bn6pr02cu00301.inbound.protection.outlook.com`
		A	52.101.10.5^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-bn6pr04cu00105.inbound.protection.outlook.com`
		A	52.101.10.14^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-bn6pr04cu00206.inbound.protection.outlook.com`
TXT	`MS=ms54604684`
TXT	`google-site-verification=jxf_Rh2KkBESjgNKkkW9FzLtt6aIAjxEfv2MU8AM5NE`
TXT	`v=spf1 include:spf.protection.outlook.com -all`
TXT	`v=spf1 ip4:71.10.214.146 include:spf.protection.outlook.com ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.46.70, 172.67.136.16
		IPv6 hints	2606:4700:3033::6815:2e46, 2606:4700:3034::ac43:8810
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=97, name=cloudflare-ech.com
SOA	`kate.ns.cloudflare.com`dns@cloudflare.com serial=2406193591

`net`

	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=1785531832

Same first word

stlengineering.net

Similar names

tlsengineering.com

sterlingengine.co.uk

DNS History

16 records (7 active, 9 former)

●NSkate.ns.cloudflare.com2026-02-14 → 2026-07-31 · 3 obs

○ 2017-04-03 16:05:08
● 2026-02-14 23:10:36
● 2026-07-31 21:25:46

●NSmark.ns.cloudflare.com2026-02-14 → 2026-07-31 · 3 obs

○ 2017-04-03 16:05:08
● 2026-02-14 23:10:36
● 2026-07-31 21:25:46

○NSns39.domaincontrol.com2015-07-20 → 2017-04-03 · 4 obs

● 2015-07-20 18:59:10
● 2017-04-03 16:05:08
○ 2026-02-14 23:10:36
○ 2026-07-31 21:25:46

○NSns40.domaincontrol.com2015-07-20 → 2017-04-03 · 4 obs

● 2015-07-20 18:59:10
● 2017-04-03 16:05:08
○ 2026-02-14 23:10:36
○ 2026-07-31 21:25:46

○MXmailstore1.secureserver.net2015-07-20 → 2017-04-03 · 4 obs

● 2015-07-20 18:59:10
● 2017-04-03 16:05:08
○ 2026-02-14 23:10:36
○ 2026-07-31 21:25:46

○MXsmtp.secureserver.net2015-07-20 → 2017-04-03 · 4 obs

● 2015-07-20 18:59:10
● 2017-04-03 16:05:08
○ 2026-02-14 23:10:36
○ 2026-07-31 21:25:46

●MXstlengineering-net.mail.protection.outlook.com2026-02-14 → 2026-07-31 · 3 obs

○ 2017-04-03 16:05:08
● 2026-02-14 23:10:36
● 2026-07-31 21:25:46

●A104.21.46.702026-02-14 → 2026-07-31 · 3 obs

○ 2017-04-03 16:05:08
● 2026-02-14 23:10:36
● 2026-07-31 21:25:46

○A160.153.136.32016-08-10 → 2017-04-03 · 5 obs

○ 2016-03-28 05:04:42
● 2016-08-10 19:17:30
● 2017-04-03 16:05:08
○ 2026-02-14 23:10:36
○ 2026-07-31 21:25:46

●A172.67.136.162026-02-14 → 2026-07-31 · 3 obs

○ 2017-04-03 16:05:08
● 2026-02-14 23:10:36
● 2026-07-31 21:25:46

○A198.71.232.32015-11-13 → 2016-03-28 · 5 obs

○ 2015-07-20 18:59:10
● 2015-11-13 14:49:36
● 2016-03-28 05:04:42
○ 2016-08-10 19:17:30
○ 2026-07-31 21:25:46

●A2606:4700:3033::6815:2e462026-07-31 → 2026-07-31 · 3 obs

○ 2026-06-09 08:34:44
● 2026-07-31 21:25:44
● 2026-07-31 21:25:46

○A2606:4700:3033::ac43:88102026-02-14 → 2026-06-09 · 5 obs

○ 2017-04-03 16:05:08
● 2026-02-14 23:10:36
● 2026-06-09 08:34:44
○ 2026-07-31 21:25:44
○ 2026-07-31 21:25:46

●A2606:4700:3034::ac43:88102026-07-31 → 2026-07-31 · 3 obs

○ 2026-06-09 08:34:44
● 2026-07-31 21:25:44
● 2026-07-31 21:25:46

○A2606:4700:3037::6815:2e462026-02-14 → 2026-06-09 · 5 obs

○ 2017-04-03 16:05:08
● 2026-02-14 23:10:36
● 2026-06-09 08:34:44
○ 2026-07-31 21:25:44
○ 2026-07-31 21:25:46

○A72.167.191.692015-07-20 → 2015-07-20 · 3 obs

● 2015-07-20 18:59:10
○ 2015-11-13 14:49:36
○ 2026-07-31 21:25:46

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
net	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
stlengineering.net	kate.ns.cloudflare.com, mark.ns.cloudflare.com	-

✅ Authoritative Response

Server:172.64.33.130

NS records: kate.ns.cloudflare.com, mark.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for stlengineering.net (unsigned zone)

⏱️ Timing

Total: 230ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.136.16, 104.21.46.70`
AAAA	2	`2606:4700:3034::ac43:8810, 2606:4700:3033::6815:2e46`
NS	2	`kate.ns.cloudflare.com, mark.ns.cloudflare.com`
MX	1	`stlengineering-net.mail.protection.outlo`
TXT	4	`MS=ms54604684, google-site-verification=jxf_Rh2KkBESjgN...`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`kate.ns.cloudflare.com dns.cloudflare.co`

Analysis

IP Addresses

stlengineering.net directs to four IP numbers, which are 104.21.46.70, 172.67.136.16, 2606:4700:3033::6815:2e46 and 2606:4700:3034::ac43:8810.

thelowcountrylife.com, utel-audits.com, www.microsoft-be.com and two other host names share IP numbers with stlengineering.net.

Name Servers

DNS delegation for stlengineering.net points to two name servers: kate.ns.cloudflare.com and mark.ns.cloudflare.com.

stlengineering.net uses the same name servers as several other domains — among them 1l0.us, ijtechnologies.com, barys.com.uy and two more.

There is at least partial name server overlap between stlengineering.net and other domains — visitdurban.travel, tentacle.nz, hhai.ca and two more among them.

These name servers tend to appear in combination with the name servers mitchell.ns.cloudflare.com, toby.ns.cloudflare.com, amy.ns.cloudflare.com and will.ns.cloudflare.com.

Hostnames that resolve to 6 IP addresses:

kate.ns.cloudflare.com has IP addresses 108.162.192.124, 172.64.32.124 and 173.245.58.124, plus 3 other.

mark.ns.cloudflare.com has IP addresses 108.162.193.130, 172.64.33.130 and 173.245.59.130, plus 3 other.

Mail Servers

Mail for stlengineering.net is handled by a single mail server, stlengineering-net.mail.protection.outlook.com.

stlengineering-net.mail.protection.outlook.com resolves to 8 IP addresses — 52.101.8.42, 52.101.10.1, 52.101.10.5 and 5 others.