`certjuken.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3030::6815:4fd2^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3034::ac43:94ca^{🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.79.210^{Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.148.202^{🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`cash.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b51^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`cash.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c151^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`cash.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2151^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`cash.ns.cloudflare.com`
		A	108.162.193.81^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`cash.ns.cloudflare.com`
		A	172.64.33.81^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`cash.ns.cloudflare.com`
		A	173.245.59.81^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`cash.ns.cloudflare.com`
NS	`ulla.ns.cloudflare.com`
		A	2606:4700:50::adf5:3ae9^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ulla.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0e9^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`ulla.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20e9^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`ulla.ns.cloudflare.com`
		A	108.162.192.233^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ulla.ns.cloudflare.com`
		A	172.64.32.233^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ulla.ns.cloudflare.com`
		A	173.245.58.233^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ulla.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4	104.21.79.210, 172.67.148.202
		IPv6	2606:4700:3030::6815:4fd2, 2606:4700:3034::ac43:94ca
SOA	`cash.ns.cloudflare.com`dns@cloudflare.com serial=2397971174

`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=1771291435

Same first word

certjuken.com

DNS History

14 records (6 active, 8 former)

●NScash.ns.cloudflare.com2016-12-20 → 2026-03-24 · 2 obs

● 2016-12-20 18:16:10
● 2026-03-24 03:18:52

●NSulla.ns.cloudflare.com2016-12-20 → 2026-03-24 · 2 obs

● 2016-12-20 18:16:10
● 2026-03-24 03:18:52

●A104.21.79.2102026-02-28 → 2026-03-24 · 5 obs

○ 2017-09-23 15:45:36
● 2026-02-28 18:43:28
● 2026-03-22 20:06:16
○ 2026-03-23 10:16:56
● 2026-03-24 03:18:52

○A104.27.158.1502016-12-20 → 2017-09-23 · 4 obs

● 2016-12-20 18:16:10
● 2017-09-23 15:45:36
○ 2026-02-28 18:43:28
○ 2026-03-24 03:18:52

○A104.27.159.1502016-12-20 → 2017-09-23 · 4 obs

● 2016-12-20 18:16:10
● 2017-09-23 15:45:36
○ 2026-02-28 18:43:28
○ 2026-03-24 03:18:52

●A172.67.148.2022026-02-28 → 2026-03-24 · 5 obs

○ 2017-09-23 15:45:36
● 2026-02-28 18:43:28
● 2026-03-22 20:06:16
○ 2026-03-23 10:16:56
● 2026-03-24 03:18:52

○A188.114.96.02026-03-23 → 2026-03-23 · 3 obs

○ 2026-03-22 20:06:16
● 2026-03-23 10:16:56
○ 2026-03-24 03:18:52

○A188.114.97.02026-03-23 → 2026-03-23 · 3 obs

○ 2026-03-22 20:06:16
● 2026-03-23 10:16:56
○ 2026-03-24 03:18:52

○A2400:cb00:2048:1::681b:9e962016-12-20 → 2017-09-23 · 4 obs

● 2016-12-20 18:16:10
● 2017-09-23 15:45:36
○ 2026-02-28 18:43:28
○ 2026-03-24 03:18:52

○A2400:cb00:2048:1::681b:9f962016-12-20 → 2017-09-23 · 4 obs

● 2016-12-20 18:16:10
● 2017-09-23 15:45:36
○ 2026-02-28 18:43:28
○ 2026-03-24 03:18:52

●A2606:4700:3030::6815:4fd22026-02-28 → 2026-03-24 · 5 obs

○ 2017-09-23 15:45:36
● 2026-02-28 18:43:28
● 2026-03-22 20:06:16
○ 2026-03-23 10:16:56
● 2026-03-24 03:18:52

●A2606:4700:3034::ac43:94ca2026-02-28 → 2026-03-24 · 5 obs

○ 2017-09-23 15:45:36
● 2026-02-28 18:43:28
● 2026-03-22 20:06:16
○ 2026-03-23 10:16:56
● 2026-03-24 03:18:52

○A2a06:98c1:3120::2026-03-23 → 2026-03-23 · 3 obs

○ 2026-03-22 20:06:16
● 2026-03-23 10:16:56
○ 2026-03-24 03:18:52

○A2a06:98c1:3121::2026-03-23 → 2026-03-23 · 3 obs

○ 2026-03-22 20:06:16
● 2026-03-23 10:16:56
○ 2026-03-24 03:18:52

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
certjuken.com	ulla.ns.cloudflare.com, cash.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.193.81

NS records: ulla.ns.cloudflare.com, cash.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for certjuken.com (unsigned zone)

⏱️ Timing

Total: 373ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.79.210, 172.67.148.202`
AAAA	2	`2606:4700:3034::ac43:94ca, 2606:4700:3030::6815:4fd2`
NS	2	`cash.ns.cloudflare.com, ulla.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`cash.ns.cloudflare.com dns.cloudflare.co`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

certjuken.com maps to four IP numbers: 2606:4700:3030::6815:4fd2, 2606:4700:3034::ac43:94ca, 104.21.79.210 and 172.67.148.202.

Other host names such as emploi-tunisie-travail.com, studiofratini.com, jhome.eu, tappetit.com and oleadatv.net share IPs with certjuken.com.

Name Servers

Two name servers cash.ns.cloudflare.com and ulla.ns.cloudflare.com handle the delegation for certjuken.com.

certjuken.com shares the same name server setup as other domains, for example latestcram.com, vce4plus.com, realvce.com, guidetorrent.com and real4exams.com.

certjuken.com at least partially shares name servers with other domains, for example clintonfurniturerefinishing.com, cintepa.com, 1100886.xyz, f4s9.com and ajends77.xyz.

These name servers are often used together with clay.ns.cloudflare.com and jessica.ns.cloudflare.com.

Host names with six IP numbers:

cash.ns.cloudflare.com points to 2606:4700:58::adf5:3b51, 2803:f800:50::6ca2:c151, 2a06:98c1:50::ac40:2151, 108.162.193.81, 172.64.33.81 and 173.245.59.81.

ulla.ns.cloudflare.com points to 2606:4700:50::adf5:3ae9, 2803:f800:50::6ca2:c0e9, 2a06:98c1:50::ac40:20e9, 108.162.192.233, 172.64.32.233 and 173.245.58.233.

certjuken.com - robtex.com

certjuken.com

com

Same first word

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

IP Addresses

Name Servers

`certjuken.com`

`com`