`5991s.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3031::ac43:9c16^{🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3033::6815:2a27^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.42.39^{Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.156.22^{🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`jo.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3aac^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jo.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0ac^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`jo.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20ac^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`jo.ns.cloudflare.com`
		A	108.162.192.172^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jo.ns.cloudflare.com`
		A	172.64.32.172^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jo.ns.cloudflare.com`
		A	173.245.58.172^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jo.ns.cloudflare.com`
NS	`woz.ns.cloudflare.com`
		A	2606:4700:58::adf5:3b96^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`woz.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c196^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`woz.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2196^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`woz.ns.cloudflare.com`
		A	108.162.193.150^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`woz.ns.cloudflare.com`
		A	172.64.33.150^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`woz.ns.cloudflare.com`
		A	173.245.59.150^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`woz.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.42.39, 172.67.156.22
		IPv6 hints	2606:4700:3031::ac43:9c16, 2606:4700:3033::6815:2a27
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=147, name=cloudflare-ech.com
SOA	`jo.ns.cloudflare.com`dns@cloudflare.com serial=2410422783

`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=1786117489

⚠️ On DNS blocklist: gambling

Same first word

5991s.com

Similar names

s9159.com

s9159.cn

5199s.tw

DNS History

13 records (6 active, 7 former)

●NSjo.ns.cloudflare.com2026-08-02 → 2026-08-07 · 3 obs

○ 2019-12-18 18:57:34
● 2026-08-02 14:16:04
● 2026-08-07 16:14:32

○NSns4.dnsdun.com2019-12-18 → 2019-12-18 · 3 obs

● 2019-12-18 18:57:34
○ 2026-08-02 14:16:04
○ 2026-08-07 16:14:32

○NSns4.dnsdun.net2019-12-18 → 2019-12-18 · 3 obs

● 2019-12-18 18:57:34
○ 2026-08-02 14:16:04
○ 2026-08-07 16:14:32

●NSwoz.ns.cloudflare.com2026-08-02 → 2026-08-07 · 3 obs

○ 2019-12-18 18:57:34
● 2026-08-02 14:16:04
● 2026-08-07 16:14:32

●A104.21.42.392026-08-07 → 2026-08-07 · 3 obs

○ 2026-08-02 14:16:04
● 2026-08-07 16:14:30
● 2026-08-07 16:14:32

●A172.67.156.222026-08-07 → 2026-08-07 · 3 obs

○ 2026-08-02 14:16:04
● 2026-08-07 16:14:30
● 2026-08-07 16:14:32

○A188.114.96.02026-08-02 → 2026-08-02 · 4 obs

○ 2019-12-18 18:57:34
● 2026-08-02 14:16:04
○ 2026-08-07 16:14:30
○ 2026-08-07 16:14:32

○A188.114.97.02026-08-02 → 2026-08-02 · 4 obs

○ 2019-12-18 18:57:34
● 2026-08-02 14:16:04
○ 2026-08-07 16:14:30
○ 2026-08-07 16:14:32

●A2606:4700:3031::ac43:9c162026-08-07 → 2026-08-07 · 3 obs

○ 2026-08-02 14:16:04
● 2026-08-07 16:14:30
● 2026-08-07 16:14:32

●A2606:4700:3033::6815:2a272026-08-07 → 2026-08-07 · 3 obs

○ 2026-08-02 14:16:04
● 2026-08-07 16:14:30
● 2026-08-07 16:14:32

○A2a06:98c1:3120::2026-08-02 → 2026-08-02 · 4 obs

○ 2019-12-18 18:57:34
● 2026-08-02 14:16:04
○ 2026-08-07 16:14:30
○ 2026-08-07 16:14:32

○A2a06:98c1:3121::2026-08-02 → 2026-08-02 · 4 obs

○ 2019-12-18 18:57:34
● 2026-08-02 14:16:04
○ 2026-08-07 16:14:30
○ 2026-08-07 16:14:32

○A45.15.187.102019-12-18 → 2019-12-18 · 3 obs

● 2019-12-18 18:57:34
○ 2026-08-02 14:16:04
○ 2026-08-07 16:14:32

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	h.gtld-servers.net, g.gtld-servers.net, f.gtld-servers.net, k.gtld-servers.net...	-
5991s.com	woz.ns.cloudflare.com, jo.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.192.172

NS records: woz.ns.cloudflare.com, jo.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for 5991s.com (unsigned zone)

⏱️ Timing

Total: 258ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.156.22, 104.21.42.39`
AAAA	2	`2606:4700:3033::6815:2a27, 2606:4700:3031::ac43:9c16`
NS	2	`jo.ns.cloudflare.com, woz.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`jo.ns.cloudflare.com dns.cloudflare.com`

📌 Glue Records Collected

Total: 12

Out-of-bailiwick: 12 (woz.ns.cloudflare.com, woz.ns.cloudflare.com, woz.ns.cloudflare.com...)

Analysis

IP Addresses

5991s.com resolves to four IP addresses: 104.21.42.39, 172.67.156.22, 2606:4700:3031::ac43:9c16 and 2606:4700:3033::6815:2a27.

jacksservice.com, surveyclick.com, mimoza-live.com plus two other host names have IP numbers in common with 5991s.com.

Name Servers

The NS records for 5991s.com delegate to jo.ns.cloudflare.com and woz.ns.cloudflare.com.

The name server configuration of 5991s.com is shared with other domains, for instance vezha.ua, brunel.kiwi, 9427555.com and two others.

5991s.com partially shares its NS delegation with several other domains, including travelvietnam.net, divorce-files.com, alleygh.co and two others.

These name servers are regularly seen alongside clayton.ns.cloudflare.com and art.ns.cloudflare.com as name servers.

Hosts with 6 IP addresses each:

jo.ns.cloudflare.com maps to 108.162.192.172, 172.64.32.172, 173.245.58.172 and 3 additional IP addresses.

woz.ns.cloudflare.com maps to 108.162.193.150, 172.64.33.150, 173.245.59.150 and 3 additional IP addresses.

5991s.com - robtex.com

5991s.com

com

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

IP Addresses

Name Servers

`5991s.com`

`com`