helpfulengineering.org - dns.ninja

`helpfulengineering.org`

DNSSEC	⚠️ Not signed
A	2606:4700:3031::ac43:ac6e^{🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3032::6815:37c2^{🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.55.194^{Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.172.110^{🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`itzel.ns.cloudflare.com` ⭐
		A	2606:4700:50::a29f:262a^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`itzel.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c22a^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`itzel.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:222a^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`itzel.ns.cloudflare.com`
		A	108.162.194.42^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`itzel.ns.cloudflare.com`
		A	162.159.38.42^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`itzel.ns.cloudflare.com`
		A	172.64.34.42^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`itzel.ns.cloudflare.com`
NS	`sonny.ns.cloudflare.com`
		A	2606:4700:58::a29f:2c42^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sonny.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c342^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`sonny.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2342^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`sonny.ns.cloudflare.com`
		A	108.162.195.66^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sonny.ns.cloudflare.com`
		A	162.159.44.66^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sonny.ns.cloudflare.com`
		A	172.64.35.66^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sonny.ns.cloudflare.com`
MX	`aspmx.l.google.com` ⭐
		A	2607:f8b0:4004:c23::1a^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`yuiadrs-in-f26.1e100.net`
		A	64.233.180.26^{🇺🇸 Google64.233.180.0/24}
			PTR	`on-in-f26.1e100.net`
			PTR	`pe-in-f26.1e100.net`
MX	`alt1.aspmx.l.google.com`⁽⁵⁾
		A	2800:3f0:4003:c0f::1a^{🇨🇱 Google2800:3f0:4003::/48}
		A	108.177.123.26^{🇺🇸 Google108.177.123.0/24}
			PTR	`lcscld-in-f26.1e100.net`
MX	`alt2.aspmx.l.google.com`⁽⁵⁾
		A	2a00:1450:400b:c02::1a^{🇮🇪 Google2a00:1450:400b::/48}
			PTR	`dj-in-f26.1e100.net`
		A	172.253.116.26^{🇺🇸 Google172.253.116.0/24}
			PTR	`dj-in-f26.1e100.net`
MX	`alt3.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:4009:c0f::1b^{🇬🇧 Google2a00:1450:4009::/48}
			PTR	`yulhrs-in-f27.1e100.net`
		A	192.178.223.27^{🇺🇸 Google192.178.223.0/24}
			PTR	`yulhrs-in-f27.1e100.net`
MX	`alt4.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:400c:c23::1a^{🇧🇪 Google2a00:1450:400c::/48}
			PTR	`yubrupd-in-f26.1e100.net`
		A	172.253.157.26^{🇺🇸 Google172.253.0.0/16}
			PTR	`yubrupd-in-f26.1e100.net`
TXT	`MS=ms50657102, 3600`
TXT	`MS=ms99244290`
TXT	`brevo-code:34f659657f3188437a248c230ade572e`
TXT	`google-site-verification=elEt4izOYR59Tw8k30QCI-761hdZ7uIVimbomgHxFUc`
TXT	`v=spf1 include:_spf.google.com include:7478923.spf03.hubspotemail.net include...`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.55.194, 172.67.172.110
		IPv6 hints	2606:4700:3031::ac43:ac6e, 2606:4700:3032::6815:37c2
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=117, name=cloudflare-ech.com
SOA	`itzel.ns.cloudflare.com`dns@cloudflare.com serial=2411396810

`org`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a0.org.afilias-nst.info` ⭐ ⚠️ Not in parent delegation
	NS	`a2.org.afilias-nst.info` ⚠️ Not in parent delegation
	NS	`b0.org.afilias-nst.org`
	NS	`b2.org.afilias-nst.org`
	NS	`c0.org.afilias-nst.info` ⚠️ Not in parent delegation
	NS	`d0.org.afilias-nst.org`
	SOA	`a0.org.afilias-nst.info`hostmaster@donuts.email serial=1786028648

Subdomains

www.helpfulengineering.org

Same first word

helpfulengineering.org

DNS History

27 records (11 active, 16 former)

○NSdarl.ns.cloudflare.com2020-03-20 → 2020-03-20 · 3 obs

● 2020-03-20 15:26:24
○ 2026-04-06 11:16:32
○ 2026-08-06 15:52:18

●NSitzel.ns.cloudflare.com2026-04-06 → 2026-08-06 · 3 obs

○ 2020-03-20 15:26:24
● 2026-04-06 11:16:32
● 2026-08-06 15:52:18

○NSmiki.ns.cloudflare.com2020-03-20 → 2020-03-20 · 3 obs

● 2020-03-20 15:26:24
○ 2026-04-06 11:16:32
○ 2026-08-06 15:52:18

●NSsonny.ns.cloudflare.com2026-04-06 → 2026-08-06 · 3 obs

○ 2020-03-20 15:26:24
● 2026-04-06 11:16:32
● 2026-08-06 15:52:18

●MXalt1.aspmx.l.google.com2026-04-06 → 2026-08-06 · 3 obs

○ 2020-03-20 15:26:24
● 2026-04-06 11:16:32
● 2026-08-06 15:52:18

●MXalt2.aspmx.l.google.com2026-04-06 → 2026-08-06 · 3 obs

○ 2020-03-20 15:26:24
● 2026-04-06 11:16:32
● 2026-08-06 15:52:18

●MXalt3.aspmx.l.google.com2026-04-06 → 2026-08-06 · 3 obs

○ 2020-03-20 15:26:24
● 2026-04-06 11:16:32
● 2026-08-06 15:52:18

●MXalt4.aspmx.l.google.com2026-04-06 → 2026-08-06 · 3 obs

○ 2020-03-20 15:26:24
● 2026-04-06 11:16:32
● 2026-08-06 15:52:18

●MXaspmx.l.google.com2026-04-06 → 2026-08-06 · 3 obs

○ 2020-03-20 15:26:24
● 2026-04-06 11:16:32
● 2026-08-06 15:52:18

○MXmail.protonmail.ch2020-03-20 → 2020-03-20 · 3 obs

● 2020-03-20 15:26:24
○ 2026-04-06 11:16:32
○ 2026-08-06 15:52:18

○MXmailsec.protonmail.ch2020-03-20 → 2020-03-20 · 3 obs

● 2020-03-20 15:26:24
○ 2026-04-06 11:16:32
○ 2026-08-06 15:52:18

●A104.21.55.1942026-04-06 → 2026-08-06 · 9 obs

○ 2020-03-20 15:26:24
● 2026-04-06 11:16:32
● 2026-04-14 09:54:46
○ 2026-04-21 04:46:24
● 2026-04-27 09:17:50
● 2026-06-13 17:43:24
○ 2026-06-26 13:56:42
● 2026-07-25 03:50:18
● 2026-08-06 15:52:18

○A104.27.134.112020-03-20 → 2020-03-20 · 3 obs

● 2020-03-20 15:26:24
○ 2026-04-06 11:16:32
○ 2026-08-06 15:52:18

○A104.27.135.112020-03-20 → 2020-03-20 · 3 obs

● 2020-03-20 15:26:24
○ 2026-04-06 11:16:32
○ 2026-08-06 15:52:18

○A172.64.80.12026-04-06 → 2026-08-06 · 2 obs

○ 2026-04-06 11:16:32
○ 2026-08-06 15:52:18

●A172.67.172.1102026-04-06 → 2026-08-06 · 9 obs

○A188.114.96.02026-04-21 → 2026-06-26 · 7 obs

○ 2026-04-14 09:54:46
● 2026-04-21 04:46:24
○ 2026-04-27 09:17:50
○ 2026-06-13 17:43:24
● 2026-06-26 13:56:42
○ 2026-07-25 03:50:18
○ 2026-08-06 15:52:18

○A188.114.97.02026-04-21 → 2026-06-26 · 7 obs

○ 2026-04-14 09:54:46
● 2026-04-21 04:46:24
○ 2026-04-27 09:17:50
○ 2026-06-13 17:43:24
● 2026-06-26 13:56:42
○ 2026-07-25 03:50:18
○ 2026-08-06 15:52:18

○A2606:4700:130:436c:6f75:6466:6c61:72652026-04-06 → 2026-08-06 · 2 obs

○ 2026-04-06 11:16:32
○ 2026-08-06 15:52:18

●A2606:4700:3031::ac43:ac6e2026-07-25 → 2026-08-06 · 3 obs

○ 2026-06-26 13:56:42
● 2026-07-25 03:50:18
● 2026-08-06 15:52:18

●A2606:4700:3032::6815:37c22026-07-25 → 2026-08-06 · 3 obs

○ 2026-06-26 13:56:42
● 2026-07-25 03:50:18
● 2026-08-06 15:52:18

○A2606:4700:3034::681b:870b2020-03-20 → 2020-03-20 · 3 obs

● 2020-03-20 15:26:24
○ 2026-04-06 11:16:32
○ 2026-08-06 15:52:18

○A2606:4700:3035::ac43:ac6e2026-04-06 → 2026-06-13 · 8 obs

○ 2020-03-20 15:26:24
● 2026-04-06 11:16:32
● 2026-04-14 09:54:46
○ 2026-04-21 04:46:24
● 2026-04-27 09:17:50
● 2026-06-13 17:43:24
○ 2026-06-26 13:56:42
○ 2026-08-06 15:52:18

○A2606:4700:3036::6815:37c22026-04-06 → 2026-06-13 · 8 obs

○ 2020-03-20 15:26:24
● 2026-04-06 11:16:32
● 2026-04-14 09:54:46
○ 2026-04-21 04:46:24
● 2026-04-27 09:17:50
● 2026-06-13 17:43:24
○ 2026-06-26 13:56:42
○ 2026-08-06 15:52:18

○A2606:4700:3037::681b:860b2020-03-20 → 2020-03-20 · 3 obs

● 2020-03-20 15:26:24
○ 2026-04-06 11:16:32
○ 2026-08-06 15:52:18

○A2a06:98c1:3120::2026-04-21 → 2026-06-26 · 7 obs

○ 2026-04-14 09:54:46
● 2026-04-21 04:46:24
○ 2026-04-27 09:17:50
○ 2026-06-13 17:43:24
● 2026-06-26 13:56:42
○ 2026-07-25 03:50:18
○ 2026-08-06 15:52:18

○A2a06:98c1:3121::2026-04-21 → 2026-06-26 · 7 obs

○ 2026-04-14 09:54:46
● 2026-04-21 04:46:24
○ 2026-04-27 09:17:50
○ 2026-06-13 17:43:24
● 2026-06-26 13:56:42
○ 2026-07-25 03:50:18
○ 2026-08-06 15:52:18

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
org	b0.org.afilias-nst.org, b2.org.afilias-nst.org, d0.org.afilias-nst.org	-
helpfulengineering.org	itzel.ns.cloudflare.com, sonny.ns.cloudflare.com	-

✅ Authoritative Response

Server:108.162.194.42

NS records: itzel.ns.cloudflare.com, sonny.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for helpfulengineering.org (unsigned zone)

⏱️ Timing

Total: 771ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.172.110, 104.21.55.194`
AAAA	2	`2606:4700:3031::ac43:ac6e, 2606:4700:3032::6815:37c2`
NS	2	`itzel.ns.cloudflare.com, sonny.ns.cloudflare.com`
MX	5	`aspmx.l.google.com (pri: 1), alt3.aspmx.l.google.com (pri: 10)...`
TXT	5	`MS=ms50657102, 3600, MS=ms99244290...`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`itzel.ns.cloudflare.com dns.cloudflare.c`

Analysis

Hierarchy

helpfulengineering.org is a parent domain of www.helpfulengineering.org.

IP Addresses

helpfulengineering.org has four IP addresses: 104.21.55.194, 172.67.172.110, 2606:4700:3031::ac43:ac6e and 2606:4700:3032::6815:37c2.

sortedemais.com, qwfrog.com, skviki.osijek031.com plus two other host names have IP numbers in common with helpfulengineering.org.

Name Servers

helpfulengineering.org is served by two delegated name servers, itzel.ns.cloudflare.com and sonny.ns.cloudflare.com.

The name server configuration of helpfulengineering.org is shared with other domains, for instance asimplecpu.com, coincanvas.net, suomenarvokulta.fi and two others.

helpfulengineering.org shares at least some of its name servers with other domains, including sinarharapan.co.id, cwin95.com, jokoor.com and two others.

These name servers are frequently paired with the name servers rory.ns.cloudflare.com, haley.ns.cloudflare.com and ben.ns.cloudflare.com.

Hosts with 6 IP addresses each:

itzel.ns.cloudflare.com carries IP addresses 108.162.194.42, 162.159.38.42 and 172.64.34.42, with 3 other addresses beyond those.

sonny.ns.cloudflare.com carries IP addresses 108.162.195.66, 162.159.44.66 and 172.64.35.66, with 3 other addresses beyond those.

Mail Servers

Mail for helpfulengineering.org is handled by five mail servers, namely aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com and two others.

At least some of the mail servers used by helpfulengineering.org are shared with other domains: ns500765.ns500734.ns500693.ns500699.ns500728.ns500588.ns500699.ns500588.ns500693.ns500693.ns500683.dtrkdll.com, ns500734.ns500699.ns500699.ns500734.ns500693.ns500699.ns500693.ns500699.ns500699.ns500588.ns500588.ns500683.ns500588.ns500588.ns500578.ns500110.dtrkdll.com, ns500699.ns500693.ns500693.ns500734.ns500693.ns500699.ns500734.ns500588.ns500588.ns500693.ns500612.ns500588.ns500588.ns500588.ns500588.dtrkdll.com and two others among them.

These mail servers often appear in conjunction with the mail servers alt3.aspmx.l.google.com, alt4.aspmx.l.google.com, aspmx2.googlemail.com and aspmx3.googlemail.com.

Host names pointing to two IP addresses:

aspmx.l.google.com maps to two IP addresses — 64.233.180.26 and 2607:f8b0:4004:c23::1a.

alt1.aspmx.l.google.com maps to two IP addresses — 108.177.123.26 and 2800:3f0:4003:c0f::1a.

alt2.aspmx.l.google.com maps to two IP addresses — 172.253.116.26 and 2a00:1450:400b:c02::1a.

alt3.aspmx.l.google.com maps to two IP addresses — 192.178.223.27 and 2a00:1450:4009:c0f::1b.

alt4.aspmx.l.google.com maps to two IP addresses — 172.253.157.26 and 2a00:1450:400c:c23::1a.