hackharvard.io - dns.ninja

`hackharvard.io`

DNSSEC	⚠️ Not signed
A	2606:4700:3032::6815:2e29^{🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3036::ac43:df9b^{🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.46.41^{Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.223.155^{🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`kayleigh.ns.cloudflare.com` ⭐
		A	2606:4700:50::a29f:265c^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kayleigh.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c25c^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`kayleigh.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:225c^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`kayleigh.ns.cloudflare.com`
		A	108.162.194.92^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kayleigh.ns.cloudflare.com`
		A	162.159.38.92^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kayleigh.ns.cloudflare.com`
		A	172.64.34.92^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kayleigh.ns.cloudflare.com`
NS	`randall.ns.cloudflare.com`
		A	2606:4700:58::a29f:2ceb^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`randall.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c3eb^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`randall.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:23eb^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`randall.ns.cloudflare.com`
		A	108.162.195.235^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`randall.ns.cloudflare.com`
		A	162.159.44.235^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`randall.ns.cloudflare.com`
		A	172.64.35.235^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`randall.ns.cloudflare.com`
MX	`aspmx.l.google.com` ⭐
		A	2607:f8b0:4004:c08::1b^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`bi-in-f27.1e100.net`
		A	192.179.18.26^{🇺🇸 Google192.178.0.0/15}
			PTR	`ry-in-f26.1e100.net`
MX	`alt1.aspmx.l.google.com`⁽⁵⁾
		A	2800:3f0:4003:c14::1b^{🇨🇱 Google2800:3f0:4003::/48}
		A	192.178.234.27^{🇺🇸 Google192.178.0.0/15}
			PTR	`ncsclj-in-f27.1e100.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	`firebase=hackharvard-core`
TXT	`hyjcw23y3l(0x663470)zxp2se8`
TXT	`v=spf1 include:_spf.firebasemail.com ~all`
TXT	`v=spf1 include:_spf.google.com ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.46.41, 172.67.223.155
		IPv6 hints	2606:4700:3032::6815:2e29, 2606:4700:3036::ac43:df9b
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=225, name=cloudflare-ech.com
SOA	`kayleigh.ns.cloudflare.com`dns@cloudflare.com serial=2409668331

`io`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a0.nic.io` ⭐
	NS	`a2.nic.io`
	NS	`b0.nic.io`
	NS	`c0.nic.io`
	SOA	`a0.nic.io`hostmaster@donuts.email serial=1786689324

Same first word

hackharvard.io

DNS History

17 records (11 active, 6 former)

○NSjade.ns.cloudflare.com2017-03-16 → 2017-03-16 · 3 obs

● 2017-03-16 17:07:36
○ 2026-02-15 01:51:08
○ 2026-08-14 06:55:44

●NSkayleigh.ns.cloudflare.com2026-02-15 → 2026-08-14 · 3 obs

○ 2017-03-16 17:07:36
● 2026-02-15 01:51:08
● 2026-08-14 06:55:44

●NSrandall.ns.cloudflare.com2026-02-15 → 2026-08-14 · 3 obs

○ 2017-03-16 17:07:36
● 2026-02-15 01:51:08
● 2026-08-14 06:55:44

○NSrudy.ns.cloudflare.com2017-03-16 → 2017-03-16 · 3 obs

● 2017-03-16 17:07:36
○ 2026-02-15 01:51:08
○ 2026-08-14 06:55:44

●MXalt1.aspmx.l.google.com2026-02-15 → 2026-08-14 · 3 obs

○ 2017-03-16 17:07:36
● 2026-02-15 01:51:08
● 2026-08-14 06:55:44

●MXalt2.aspmx.l.google.com2026-02-15 → 2026-08-14 · 3 obs

○ 2017-03-16 17:07:36
● 2026-02-15 01:51:08
● 2026-08-14 06:55:44

●MXalt3.aspmx.l.google.com2026-02-15 → 2026-08-14 · 3 obs

○ 2017-03-16 17:07:36
● 2026-02-15 01:51:08
● 2026-08-14 06:55:44

●MXalt4.aspmx.l.google.com2026-02-15 → 2026-08-14 · 3 obs

○ 2017-03-16 17:07:36
● 2026-02-15 01:51:08
● 2026-08-14 06:55:44

●MXaspmx.l.google.com2026-02-15 → 2026-08-14 · 3 obs

○ 2017-03-16 17:07:36
● 2026-02-15 01:51:08
● 2026-08-14 06:55:44

○MXmxa.mailgun.org2017-03-16 → 2017-03-16 · 3 obs

● 2017-03-16 17:07:36
○ 2026-02-15 01:51:08
○ 2026-08-14 06:55:44

○MXmxb.mailgun.org2017-03-16 → 2017-03-16 · 3 obs

● 2017-03-16 17:07:36
○ 2026-02-15 01:51:08
○ 2026-08-14 06:55:44

●A104.21.46.412026-02-15 → 2026-08-14 · 3 obs

○ 2017-03-16 17:07:36
● 2026-02-15 01:51:08
● 2026-08-14 06:55:44

○A162.243.199.1172017-03-16 → 2017-03-16 · 3 obs

● 2017-03-16 17:07:36
○ 2026-02-15 01:51:08
○ 2026-08-14 06:55:44

●A172.67.223.1552026-02-15 → 2026-08-14 · 3 obs

○ 2017-03-16 17:07:36
● 2026-02-15 01:51:08
● 2026-08-14 06:55:44

●A2606:4700:3032::6815:2e292026-07-01 → 2026-08-14 · 3 obs

○ 2026-02-15 01:51:08
● 2026-07-01 00:52:52
● 2026-08-14 06:55:44

●A2606:4700:3036::ac43:df9b2026-02-15 → 2026-08-14 · 3 obs

○ 2017-03-16 17:07:36
● 2026-02-15 01:51:08
● 2026-08-14 06:55:44

○A2606:4700:3037::6815:2e292026-02-15 → 2026-02-15 · 4 obs

○ 2017-03-16 17:07:36
● 2026-02-15 01:51:08
○ 2026-07-01 00:52:52
○ 2026-08-14 06:55:44

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
io	a0.nic.io, a2.nic.io, b0.nic.io, c0.nic.io	-
hackharvard.io	randall.ns.cloudflare.com, kayleigh.ns.cloudflare.com	-

✅ Authoritative Response

Server:172.64.34.92

NS records: randall.ns.cloudflare.com, kayleigh.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for hackharvard.io (unsigned zone)

⏱️ Timing

Total: 465ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.223.155, 104.21.46.41`
AAAA	2	`2606:4700:3032::6815:2e29, 2606:4700:3036::ac43:df9b`
NS	2	`kayleigh.ns.cloudflare.com, randall.ns.cloudflare.com`
MX	5	`aspmx.l.google.com (pri: 1), alt3.aspmx.l.google.com (pri: 10)...`
TXT	4	`firebase=hackharvard-core, hyjcw23y3l(0x663470)zxp2se8...`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`kayleigh.ns.cloudflare.com dns.cloudflar`

Analysis

IP Addresses

hackharvard.io has four IP addresses: 104.21.46.41, 172.67.223.155, 2606:4700:3032::6815:2e29 and 2606:4700:3036::ac43:df9b.

digitallogicdynamics.click, www.mtlnovel.me, trainingcurve.org.uk plus two other host names have IP numbers in common with hackharvard.io.

Name Servers

hackharvard.io uses two name servers for its delegation: kayleigh.ns.cloudflare.com and randall.ns.cloudflare.com.

The name server configuration of hackharvard.io is shared with other domains, for instance chiccodoro.it, codex-native-relay-pages.pages.dev, jalperiontas.sbs and two others.

hackharvard.io partially shares its NS delegation with several other domains, including zhishiku88.com, sunrayyuma.com, 2pvv3k.mom and two others.

These name servers are regularly seen alongside carrera.ns.cloudflare.com and sevki.ns.cloudflare.com as name servers.

Hosts with 6 IP addresses each:

Hostname kayleigh.ns.cloudflare.com directs to 108.162.194.92, 162.159.38.92 and 172.64.34.92 along with 3 other IP addresses.

Hostname randall.ns.cloudflare.com directs to 108.162.195.235, 162.159.44.235 and 172.64.35.235 along with 3 other IP addresses.

Mail Servers

Mail for hackharvard.io 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 hackharvard.io are shared with other domains: gomeendo.com, flistudio.com, adrockers.com.br 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 directs traffic to 192.179.18.26 and 2607:f8b0:4004:c08::1b.

alt1.aspmx.l.google.com directs traffic to 192.178.234.27 and 2800:3f0:4003:c14::1b.

alt2.aspmx.l.google.com directs traffic to 172.253.116.26 and 2a00:1450:400b:c02::1a.

alt3.aspmx.l.google.com directs traffic to 192.178.223.27 and 2a00:1450:4009:c0f::1b.

alt4.aspmx.l.google.com directs traffic to 172.253.157.26 and 2a00:1450:400c:c23::1a.