`2591ky.com`

DNSSEC	⚠️ Not signed
NS	`edns153.ultradns.com` ⭐ ⚠️ Not in parent delegation
		A	2001:502:f3ff::299^{🇺🇸 MAINT-ID-120082001:502:f3ff::/48 Neustar}
			PTR	`edns153.ultradns.com`
		A	204.74.66.153^{🇺🇸 MAINT-ID-12008204.74.66.0/24 Neustar}
NS	`edns153.ultradns.biz` ⚠️ Not in parent delegation
		A	2610:a1:1015::299^{🇺🇸 MAINT-ID-120082610:a1:1015::/48 Neustar}
			PTR	`edns153.ultradns.biz`
		A	204.74.67.153^{🇺🇸 MAINT-ID-12008204.74.67.0/24 Neustar}
NS	`edns153.ultradns.net` ⚠️ Not in parent delegation
		A	2610:a1:1014::299^{🇺🇸 MAINT-ID-120082610:a1:1014::/48 Neustar}
			PTR	`edns153.ultradns.net`
		A	204.74.110.153^{🇺🇸 MAINT-ID-12008204.74.110.0/24 Neustar}
NS	`edns153.ultradns.org` ⚠️ Not in parent delegation
		A	2001:502:4612::299^{🇺🇸 MAINT-ID-120082001:502:4612::/48 Neustar}
			PTR	`edns153.ultradns.org`
		A	204.74.111.153^{🇺🇸 MAINT-ID-12008204.74.111.0/24 Neustar}
NS	`pdns104.ultradns.biz` ⚠️ Not in zone NS records
		A	2610:a1:1015::8c^{🇺🇸 MAINT-ID-120082610:a1:1015::/48 Neustar}
			PTR	`pdns104.ultradns.biz`
		A	156.154.66.104^{🇺🇸 MAINT-ID-12008156.154.66.0/24 Neustar}
NS	`pdns104.ultradns.com` ⚠️ Not in zone NS records
		A	2001:502:f3ff::8c^{🇺🇸 MAINT-ID-120082001:502:f3ff::/48 Neustar}
			PTR	`pdns104.ultradns.com`
		A	156.154.64.104^{🇺🇸 MAINT-ID-12008156.154.64.0/24 Neustar}
NS	`pdns104.ultradns.net` ⚠️ Not in zone NS records
		A	2610:a1:1014::8c^{🇺🇸 MAINT-ID-120082610:a1:1014::/48 Neustar}
			PTR	`pdns104.ultradns.net`
		A	156.154.65.104^{🇺🇸 MAINT-ID-12008156.154.65.0/24 Neustar}
NS	`pdns104.ultradns.org` ⚠️ Not in zone NS records
		A	2001:502:4612::8c^{🇺🇸 MAINT-ID-120082001:502:4612::/48 Neustar}
			PTR	`pdns104.ultradns.org`
		A	156.154.67.104^{🇺🇸 MAINT-ID-12008156.154.67.0/24 Neustar}
SOA	`edns153.ultradns.com`zhanghang8819@gmail.com 2022-12-19 #3

`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=1785357187

⚠️ On DNS blocklist: tif

Same first word

2591ky.com

Similar names

2159ky.com

2951ky.com

2915ky.com

2519ky.com

2195ky.com

1259ky.com

DNS History

17 records (8 active, 9 former)

●NSedns153.ultradns.biz2026-07-26 → 2026-07-29 · 2 obs

● 2026-07-26 11:28:36
● 2026-07-29 20:54:08

●NSedns153.ultradns.com2026-07-26 → 2026-07-29 · 2 obs

● 2026-07-26 11:28:36
● 2026-07-29 20:54:08

●NSedns153.ultradns.net2026-07-26 → 2026-07-29 · 2 obs

● 2026-07-26 11:28:36
● 2026-07-29 20:54:08

●NSedns153.ultradns.org2026-07-26 → 2026-07-29 · 2 obs

● 2026-07-26 11:28:36
● 2026-07-29 20:54:08

●NSpdns104.ultradns.biz2026-07-26 → 2026-07-29 · 2 obs

● 2026-07-26 11:28:36
● 2026-07-29 20:54:08

●NSpdns104.ultradns.com2026-07-26 → 2026-07-29 · 2 obs

● 2026-07-26 11:28:36
● 2026-07-29 20:54:08

●NSpdns104.ultradns.net2026-07-26 → 2026-07-29 · 2 obs

● 2026-07-26 11:28:36
● 2026-07-29 20:54:08

●NSpdns104.ultradns.org2026-07-26 → 2026-07-29 · 2 obs

● 2026-07-26 11:28:36
● 2026-07-29 20:54:08

○A156.240.110.2442026-07-26 → 2026-07-26 · 3 obs

● 2026-07-26 11:28:36
○ 2026-07-29 20:54:06
○ 2026-07-29 20:54:08

○A156.240.110.2482026-07-26 → 2026-07-26 · 3 obs

● 2026-07-26 11:28:36
○ 2026-07-29 20:54:06
○ 2026-07-29 20:54:08

○A18.166.174.1972026-07-26 → 2026-07-26 · 3 obs

● 2026-07-26 11:28:36
○ 2026-07-29 20:54:06
○ 2026-07-29 20:54:08

○A210.79.61.182026-07-26 → 2026-07-26 · 3 obs

● 2026-07-26 11:28:36
○ 2026-07-29 20:54:06
○ 2026-07-29 20:54:08

○A45.156.221.112026-07-26 → 2026-07-26 · 3 obs

● 2026-07-26 11:28:36
○ 2026-07-29 20:54:06
○ 2026-07-29 20:54:08

○A45.156.221.122026-07-26 → 2026-07-26 · 3 obs

● 2026-07-26 11:28:36
○ 2026-07-29 20:54:06
○ 2026-07-29 20:54:08

○A45.156.221.132026-07-26 → 2026-07-26 · 3 obs

● 2026-07-26 11:28:36
○ 2026-07-29 20:54:06
○ 2026-07-29 20:54:08

○A45.156.221.142026-07-26 → 2026-07-26 · 3 obs

● 2026-07-26 11:28:36
○ 2026-07-29 20:54:06
○ 2026-07-29 20:54:08

○A54.46.75.852026-07-26 → 2026-07-26 · 3 obs

● 2026-07-26 11:28:36
○ 2026-07-29 20:54:06
○ 2026-07-29 20:54:08

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
2591ky.com	pdns104.ultradns.net, pdns104.ultradns.com, pdns104.ultradns.biz, pdns104.ultradns.org	2 records

✅ Authoritative Response

Server:156.154.67.104

NS records: pdns104.ultradns.net, pdns104.ultradns.com, pdns104.ultradns.biz, pdns104.ultradns.org

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for 2591ky.com (unsigned zone)

⏱️ Timing

Total: 636ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	4	`edns153.ultradns.biz, edns153.ultradns.com...`
SOA	1	`edns153.ultradns.com zhanghang8819.gmail`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (pdns104.ultradns.com, pdns104.ultradns.com)

Analysis

Name Servers

2591ky.com delegates authority to 8 name servers: edns153.ultradns.biz, pdns104.ultradns.biz, edns153.ultradns.com plus 5 other.

2591ky.com shares at least some of its name servers with other domains, including 153.166.108.in-addr.arpa, k8101.com, oyx21w.vip and two others.

These name servers are frequently seen alongside pdns104.ultradns.com, pdns104.ultradns.net, pdns104.ultradns.org and 6 other name servers.

Hosts with two IP numbers each:

edns153.ultradns.biz directs traffic to 204.74.67.153 and 2610:a1:1015::299.

pdns104.ultradns.biz directs traffic to 156.154.66.104 and 2610:a1:1015::8c.

edns153.ultradns.com directs traffic to 204.74.66.153 and 2001:502:f3ff::299.

pdns104.ultradns.com directs traffic to 156.154.64.104 and 2001:502:f3ff::8c.

edns153.ultradns.net directs traffic to 204.74.110.153 and 2610:a1:1014::299.

pdns104.ultradns.net directs traffic to 156.154.65.104 and 2610:a1:1014::8c.

edns153.ultradns.org directs traffic to 204.74.111.153 and 2001:502:4612::299.

pdns104.ultradns.org directs traffic to 156.154.67.104 and 2001:502:4612::8c.