`hackerone-mail.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3030::6815:3ac^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::ac43:82f9^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.3.172^{Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.130.249^{🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`a.ns.hackerone.com` ⭐
		A	2400:cb00:2049:1::a29f:1f^{🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street}
			PTR	`a.ns.hackerone.com`
		A	162.159.0.31^{Cloudflare162.159.0.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
NS	`b.ns.hackerone.com`
		A	2400:cb00:2049:1::a29f:11f^{🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street}
			PTR	`b.ns.hackerone.com`
		A	162.159.1.31^{Cloudflare162.159.1.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`b.ns.hackerone.com`
TXT	`v=spf1 -all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.3.172, 172.67.130.249
		IPv6 hints	2606:4700:3030::6815:3ac, 2606:4700:3037::ac43:82f9
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=0, name=cloudflare-ech.com
SOA	`a.ns.hackerone.com`dns@cloudflare.com serial=2401690345

`com`

	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=1777093761

Same first word

hackerone-mail.com

DNS History

10 records (6 active, 4 former)

●NSa.ns.hackerone.com2026-02-19 → 2026-04-25 · 2 obs

● 2026-02-19 04:17:38
● 2026-04-25 05:30:32

●NSb.ns.hackerone.com2026-02-19 → 2026-04-25 · 2 obs

● 2026-02-19 04:17:38
● 2026-04-25 05:30:32

●A104.21.3.1722026-02-19 → 2026-04-25 · 3 obs

● 2026-02-19 04:17:38
○ 2026-02-24 13:21:42
● 2026-04-25 05:30:32

●A172.67.130.2492026-02-19 → 2026-04-25 · 3 obs

● 2026-02-19 04:17:38
○ 2026-02-24 13:21:42
● 2026-04-25 05:30:32

○A188.114.96.02026-02-24 → 2026-02-24 · 3 obs

○ 2026-02-19 04:17:38
● 2026-02-24 13:21:42
○ 2026-04-25 05:30:32

○A188.114.97.02026-02-24 → 2026-02-24 · 3 obs

○ 2026-02-19 04:17:38
● 2026-02-24 13:21:42
○ 2026-04-25 05:30:32

●A2606:4700:3030::6815:3ac2026-02-19 → 2026-04-25 · 3 obs

● 2026-02-19 04:17:38
○ 2026-02-24 13:21:42
● 2026-04-25 05:30:32

●A2606:4700:3037::ac43:82f92026-02-19 → 2026-04-25 · 3 obs

● 2026-02-19 04:17:38
○ 2026-02-24 13:21:42
● 2026-04-25 05:30:32

○A2a06:98c1:3120::2026-02-24 → 2026-02-24 · 3 obs

○ 2026-02-19 04:17:38
● 2026-02-24 13:21:42
○ 2026-04-25 05:30:32

○A2a06:98c1:3121::2026-02-24 → 2026-02-24 · 3 obs

○ 2026-02-19 04:17:38
● 2026-02-24 13:21:42
○ 2026-04-25 05:30:32

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	g.gtld-servers.net, a.gtld-servers.net, b.gtld-servers.net, e.gtld-servers.net...	-
hackerone-mail.com	a.ns.hackerone.com, b.ns.hackerone.com	4 records

✅ Authoritative Response

Server:162.159.0.31

NS records: a.ns.hackerone.com, b.ns.hackerone.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for hackerone-mail.com (unsigned zone)

⏱️ Timing

Total: 204ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.3.172, 172.67.130.249`
AAAA	2	`2606:4700:3030::6815:3ac, 2606:4700:3037::ac43:82f9`
NS	2	`a.ns.hackerone.com, b.ns.hackerone.com`
TXT	1	`v=spf1 -all`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`a.ns.hackerone.com dns.cloudflare.com`

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (a.ns.hackerone.com, a.ns.hackerone.com, b.ns.hackerone.com...)

Analysis

IP Addresses

hackerone-mail.com maps to four IP numbers: 2606:4700:3030::6815:3ac, 2606:4700:3037::ac43:82f9, 104.21.3.172 and 172.67.130.249.

other host names include customerboard.co, balpinar.com, missav.hottv33.top, www.etrackingpro.com and golambent.com; they share IP numbers with hackerone-mail.com.

Name Servers

Two name servers a.ns.hackerone.com and b.ns.hackerone.com handle the delegation for hackerone-mail.com.

hackerone-mail.com shares the same name server setup as other domains, for instance hackeronesupport.com, breaker101.com, hackerone.ac, wearehackerond.com and hackerone.com.mt.

hackerone-mail.com at least partially shares name servers with other domains, for instance hackerons.com, hckr1.com, hackerall.com, hackerone.mx and hackedone.com.

Host names with two IP numbers:

a.ns.hackerone.com points to 2400:cb00:2049:1::a29f:1f and 162.159.0.31.

b.ns.hackerone.com points to 2400:cb00:2049:1::a29f:11f and 162.159.1.31.

hackerone-mail.com - robtex.com