`jknowledgetutor.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3033::ac43:ba4e^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3035::6815:3bfb^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.59.251^{Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.186.78^{🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`max.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b84^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`max.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c184^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`max.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2184^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`max.ns.cloudflare.com`
		A	108.162.193.132^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`max.ns.cloudflare.com`
		A	172.64.33.132^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`max.ns.cloudflare.com`
		A	173.245.59.132^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`max.ns.cloudflare.com`
NS	`wally.ns.cloudflare.com`
		A	2606:4700:50::adf5:3aef^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`wally.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0ef^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`wally.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20ef^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`wally.ns.cloudflare.com`
		A	108.162.192.239^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`wally.ns.cloudflare.com`
		A	172.64.32.239^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`wally.ns.cloudflare.com`
		A	173.245.58.239^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`wally.ns.cloudflare.com`
MX	`mail.jknowledgetutor.com` ⭐
		A	139.180.211.87^{🇸🇬 AS-VULTR139.180.208.0/20 The Constant Company, LLC 319 CLEMATIS ST Suite 900}
			PTR	`139.180.211.87.vultrusercontent.com`
TXT	`google-site-verification=ln2ncRZqvX702aGwIoSi_ZpXhw0wPJ1LNCuXcPF4GPY`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4	104.21.59.251, 172.67.186.78
		IPv6	2606:4700:3033::ac43:ba4e, 2606:4700:3035::6815:3bfb
SOA	`max.ns.cloudflare.com`dns@cloudflare.com serial=2397420595

`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=1774432927

Subdomains

nrw.jknowledgetutor.com

mail.jknowledgetutor.com

Same first word

jknowledgetutor.com

DNS History

22 records (7 active, 15 former)

○NSdns1.thzhost.com2016-07-05 → 2017-02-15 · 5 obs

○ 2016-02-24 04:39:44
● 2016-07-05 02:54:00
● 2017-02-15 21:31:36
○ 2019-03-28 19:40:22
○ 2026-03-25 10:14:56

○NSdns2.thzhost.com2016-07-05 → 2017-02-15 · 5 obs

○ 2016-02-24 04:39:44
● 2016-07-05 02:54:00
● 2017-02-15 21:31:36
○ 2019-03-28 19:40:22
○ 2026-03-25 10:14:56

○NSdns3.thzhost.com2016-07-05 → 2017-02-15 · 5 obs

○ 2016-02-24 04:39:44
● 2016-07-05 02:54:00
● 2017-02-15 21:31:36
○ 2019-03-28 19:40:22
○ 2026-03-25 10:14:56

○NSdns4.thzhost.com2016-07-05 → 2017-02-15 · 5 obs

○ 2016-02-24 04:39:44
● 2016-07-05 02:54:00
● 2017-02-15 21:31:36
○ 2019-03-28 19:40:22
○ 2026-03-25 10:14:56

●NSmax.ns.cloudflare.com2019-03-28 → 2026-03-25 · 3 obs

○ 2017-02-15 21:31:36
● 2019-03-28 19:40:22
● 2026-03-25 10:14:56

○NSns1.esarnserver.com2015-07-11 → 2015-11-16 · 4 obs

● 2015-07-11 06:06:54
● 2015-11-16 01:35:54
○ 2016-02-24 04:39:44
○ 2026-03-25 10:14:56

○NSns2.esarnserver.com2015-07-11 → 2015-11-16 · 4 obs

● 2015-07-11 06:06:54
● 2015-11-16 01:35:54
○ 2016-02-24 04:39:44
○ 2026-03-25 10:14:56

○NSns3.esarnserver.com2016-02-24 → 2016-02-24 · 4 obs

○ 2015-11-16 01:35:54
● 2016-02-24 04:39:44
○ 2016-07-05 02:54:00
○ 2026-03-25 10:14:56

○NSns4.esarnserver.com2016-02-24 → 2016-02-24 · 4 obs

○ 2015-11-16 01:35:54
● 2016-02-24 04:39:44
○ 2016-07-05 02:54:00
○ 2026-03-25 10:14:56

●NSwally.ns.cloudflare.com2019-03-28 → 2026-03-25 · 3 obs

○ 2017-02-15 21:31:36
● 2019-03-28 19:40:22
● 2026-03-25 10:14:56

●MXmail.jknowledgetutor.com2015-07-11 → 2026-03-25 · 2 obs

● 2015-07-11 06:06:54
● 2026-03-25 10:14:56

○A103.58.148.762016-07-05 → 2017-02-15 · 5 obs

○ 2016-02-24 04:39:44
● 2016-07-05 02:54:00
● 2017-02-15 21:31:36
○ 2019-03-28 19:40:22
○ 2026-03-25 10:14:56

●A104.21.59.2512026-02-18 → 2026-03-25 · 3 obs

○ 2019-03-28 19:40:22
● 2026-02-18 01:34:40
● 2026-03-25 10:14:56

○A104.27.130.1592019-03-28 → 2019-03-28 · 4 obs

○ 2017-02-15 21:31:36
● 2019-03-28 19:40:22
○ 2026-02-18 01:34:40
○ 2026-03-25 10:14:56

○A104.27.131.1592019-03-28 → 2019-03-28 · 4 obs

○ 2017-02-15 21:31:36
● 2019-03-28 19:40:22
○ 2026-02-18 01:34:40
○ 2026-03-25 10:14:56

○A150.107.29.1542016-02-24 → 2016-02-24 · 4 obs

○ 2015-11-16 01:35:54
● 2016-02-24 04:39:44
○ 2016-07-05 02:54:00
○ 2026-03-25 10:14:56

●A172.67.186.782026-02-18 → 2026-03-25 · 3 obs

○ 2019-03-28 19:40:22
● 2026-02-18 01:34:40
● 2026-03-25 10:14:56

○A183.90.173.1312015-07-11 → 2015-11-16 · 4 obs

● 2015-07-11 06:06:54
● 2015-11-16 01:35:54
○ 2016-02-24 04:39:44
○ 2026-03-25 10:14:56

○A2606:4700:30::681b:829f2019-03-28 → 2019-03-28 · 4 obs

○ 2017-02-15 21:31:36
● 2019-03-28 19:40:22
○ 2026-02-18 01:34:40
○ 2026-03-25 10:14:56

○A2606:4700:30::681b:839f2019-03-28 → 2019-03-28 · 4 obs

○ 2017-02-15 21:31:36
● 2019-03-28 19:40:22
○ 2026-02-18 01:34:40
○ 2026-03-25 10:14:56

●A2606:4700:3033::ac43:ba4e2026-02-18 → 2026-03-25 · 3 obs

○ 2019-03-28 19:40:22
● 2026-02-18 01:34:40
● 2026-03-25 10:14:56

●A2606:4700:3035::6815:3bfb2026-02-18 → 2026-03-25 · 3 obs

○ 2019-03-28 19:40:22
● 2026-02-18 01:34:40
● 2026-03-25 10:14:56

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
jknowledgetutor.com	max.ns.cloudflare.com, wally.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.192.239

NS records: max.ns.cloudflare.com, wally.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for jknowledgetutor.com (unsigned zone)

⏱️ Timing

Total: 141ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.186.78, 104.21.59.251`
AAAA	2	`2606:4700:3035::6815:3bfb, 2606:4700:3033::ac43:ba4e`
NS	2	`max.ns.cloudflare.com, wally.ns.cloudflare.com`
MX	1	`mail.jknowledgetutor.com (pri: 10)`
TXT	1	`google-site-verification=ln2ncRZqvX702aG`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`max.ns.cloudflare.com dns.cloudflare.com`

📌 Glue Records Collected

Total: 12

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

Analysis

Hierarchy

jknowledgetutor.com is a parent of nrw.jknowledgetutor.com and mail.jknowledgetutor.com.

IP Addresses

jknowledgetutor.com resolves to four IPs: 2606:4700:3033::ac43:ba4e, 2606:4700:3035::6815:3bfb, 104.21.59.251 and 172.67.186.78.

Other host names such as friese-producten.nl, tayhydro.com, fridakalo.com, idhome2b.fr and tesd-263748.eduunivkiz.ru share IP numbers with jknowledgetutor.com.

Name Servers

jknowledgetutor.com is delegated to two name servers: max.ns.cloudflare.com and wally.ns.cloudflare.com.

jknowledgetutor.com uses the same name server setup as other domains, including zlosniki.pl, agentslug.com, digitash.com, oddup.com and cursoo.com.br.

At least part of the name servers for jknowledgetutor.com are shared with other domains, for instance mohawkvalleycarpets.com, fqbf.com.cn, tamilpedia.in, af5.club and 4emd.com.

These name servers are often used together with elisa.ns.cloudflare.com, thomas.ns.cloudflare.com and clint.ns.cloudflare.com.

Host names with six IP numbers:

max.ns.cloudflare.com points to: 2606:4700:58::adf5:3b84, 2803:f800:50::6ca2:c184, 2a06:98c1:50::ac40:2184, 108.162.193.132, 172.64.33.132 and 173.245.59.132.

wally.ns.cloudflare.com points to: 2606:4700:50::adf5:3aef, 2803:f800:50::6ca2:c0ef, 2a06:98c1:50::ac40:20ef, 108.162.192.239, 172.64.32.239 and 173.245.58.239.

Mail Servers

The mail server for jknowledgetutor.com is mail.jknowledgetutor.com.

Host mail.jknowledgetutor.com points to IP 139.180.211.87.

jknowledgetutor.com - robtex.com