theoryofknowledge.net - dns.ninja

`theoryofknowledge.net`

DNSSEC	⚠️ Not signed
A	141.193.213.20^{🇺🇸 CLOUDFLARESPECTRUM141.193.213.0/24 WPEngine, Inc. 504 Lavaca Street, 1000, Austin, TX 78701, US}
A	141.193.213.21^{🇺🇸 CLOUDFLARESPECTRUM141.193.213.0/24 WPEngine, Inc. 504 Lavaca Street, 1000, Austin, TX 78701, US}
NS	`coco.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3a68^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`coco.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c068^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`coco.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2068^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`coco.ns.cloudflare.com`
		A	108.162.192.104^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`coco.ns.cloudflare.com`
		A	172.64.32.104^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`coco.ns.cloudflare.com`
		A	173.245.58.104^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`coco.ns.cloudflare.com`
NS	`fred.ns.cloudflare.com`
		A	2606:4700:58::adf5:3b71^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`fred.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c171^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`fred.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2171^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`fred.ns.cloudflare.com`
		A	108.162.193.113^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`fred.ns.cloudflare.com`
		A	172.64.33.113^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`fred.ns.cloudflare.com`
		A	173.245.59.113^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`fred.ns.cloudflare.com`
MX	`aspmx.l.google.com` ⭐
		A	2607:f8b0:4004:c23::1a^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`yuiadrs-in-f26.1e100.net`
		A	64.233.180.27^{🇺🇸 Google64.233.180.0/24}
			PTR	`on-in-f27.1e100.net`
			PTR	`pe-in-f27.1e100.net`
MX	`alt1.aspmx.l.google.com`⁽⁵⁾
		A	2800:3f0:4003:c14::1b^{🇨🇱 Google2800:3f0:4003::/48}
		A	192.178.234.27^{🇺🇸 Google192.178.0.0/15}
			PTR	`ncsclj-in-f27.1e100.net`
MX	`alt2.aspmx.l.google.com`⁽⁵⁾
		A	2a00:1450:400b:c02::1b^{🇮🇪 Google2a00:1450:400b::/48}
			PTR	`dj-in-f27.1e100.net`
		A	172.253.116.26^{🇺🇸 Google172.253.116.0/24}
			PTR	`dj-in-f26.1e100.net`
MX	`alt3.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:4009:c0f::1b^{🇬🇧 Google2a00:1450:4009::/48}
			PTR	`yulhrs-in-f27.1e100.net`
		A	192.178.223.26^{🇺🇸 Google192.178.223.0/24}
			PTR	`yulhrs-in-f26.1e100.net`
MX	`alt4.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:400c:c23::1b^{🇧🇪 Google2a00:1450:400c::/48}
			PTR	`yubrupd-in-f27.1e100.net`
		A	172.253.157.26^{🇺🇸 Google172.253.0.0/16}
			PTR	`yubrupd-in-f26.1e100.net`
TXT	`v=spf1 a mx include:_spf.google.com include:spf.stackmail.com include:_spf.el...`
SOA	`coco.ns.cloudflare.com`dns@cloudflare.com serial=2410085589

`net`

	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=1786661094

WOT: UNKNOWN (74/100)

Subdomains

www.theoryofknowledge.net

Same first word

theoryofknowledge.net

DNS History

17 records (9 active, 8 former)

●NScoco.ns.cloudflare.com2026-03-27 → 2026-08-13 · 3 obs

○ 2017-01-31 22:45:50
● 2026-03-27 12:32:10
● 2026-08-13 23:11:12

●NSfred.ns.cloudflare.com2026-03-27 → 2026-08-13 · 3 obs

○ 2017-01-31 22:45:50
● 2026-03-27 12:32:10
● 2026-08-13 23:11:12

○NSns1.bluehost.com2015-06-09 → 2017-01-31 · 4 obs

● 2015-06-09 15:21:22
● 2017-01-31 22:45:50
○ 2026-03-27 12:32:10
○ 2026-08-13 23:11:12

○NSns2.bluehost.com2015-06-09 → 2017-01-31 · 4 obs

● 2015-06-09 15:21:22
● 2017-01-31 22:45:50
○ 2026-03-27 12:32:10
○ 2026-08-13 23:11:12

●MXalt1.aspmx.l.google.com2026-03-27 → 2026-08-13 · 3 obs

○ 2017-01-31 22:45:50
● 2026-03-27 12:32:10
● 2026-08-13 23:11:12

●MXalt2.aspmx.l.google.com2026-03-27 → 2026-08-13 · 3 obs

○ 2017-01-31 22:45:50
● 2026-03-27 12:32:10
● 2026-08-13 23:11:12

●MXalt3.aspmx.l.google.com2026-03-27 → 2026-08-13 · 3 obs

○ 2017-01-31 22:45:50
● 2026-03-27 12:32:10
● 2026-08-13 23:11:12

●MXalt4.aspmx.l.google.com2026-03-27 → 2026-08-13 · 3 obs

○ 2017-01-31 22:45:50
● 2026-03-27 12:32:10
● 2026-08-13 23:11:12

●MXaspmx.l.google.com2026-03-27 → 2026-08-13 · 3 obs

○ 2017-01-31 22:45:50
● 2026-03-27 12:32:10
● 2026-08-13 23:11:12

○MXmail.theoryofknowledge.net2015-06-09 → 2017-01-31 · 4 obs

● 2015-06-09 15:21:22
● 2017-01-31 22:45:50
○ 2026-03-27 12:32:10
○ 2026-08-13 23:11:12

○A104.16.150.1082026-03-27 → 2026-08-13 · 2 obs

○ 2026-03-27 12:32:10
○ 2026-08-13 23:11:12

○A104.16.151.1082026-03-27 → 2026-08-13 · 2 obs

○ 2026-03-27 12:32:10
○ 2026-08-13 23:11:12

●A141.193.213.202026-03-27 → 2026-08-13 · 3 obs

○ 2017-01-31 22:45:50
● 2026-03-27 12:32:10
● 2026-08-13 23:11:12

●A141.193.213.212026-03-27 → 2026-08-13 · 3 obs

○ 2017-01-31 22:45:50
● 2026-03-27 12:32:10
● 2026-08-13 23:11:12

○A198.57.167.942015-06-09 → 2017-01-31 · 4 obs

● 2015-06-09 15:21:22
● 2017-01-31 22:45:50
○ 2026-03-27 12:32:10
○ 2026-08-13 23:11:12

○A2606:4700::6810:966c2026-03-27 → 2026-08-13 · 2 obs

○ 2026-03-27 12:32:10
○ 2026-08-13 23:11:12

○A2606:4700::6810:976c2026-03-27 → 2026-08-13 · 2 obs

○ 2026-03-27 12:32:10
○ 2026-08-13 23:11:12

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
net	d.gtld-servers.net, f.gtld-servers.net, h.gtld-servers.net, b.gtld-servers.net...	-
theoryofknowledge.net	fred.ns.cloudflare.com, coco.ns.cloudflare.com	-

✅ Authoritative Response

Server:173.245.58.104

NS records: fred.ns.cloudflare.com, coco.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for theoryofknowledge.net (unsigned zone)

⏱️ Timing

Total: 451ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`141.193.213.21, 141.193.213.20`
NS	2	`coco.ns.cloudflare.com, fred.ns.cloudflare.com`
MX	5	`aspmx.l.google.com (pri: 1), alt3.aspmx.l.google.com (pri: 10)...`
TXT	1	`v=spf1 a mx include:_spf.google.com incl`
SOA	1	`coco.ns.cloudflare.com dns.cloudflare.co`

Analysis

Hierarchy

theoryofknowledge.net is the parent zone for www.theoryofknowledge.net.

IP Addresses

theoryofknowledge.net resolves to the IP addresses 141.193.213.20 and 141.193.213.21

Additional host names — defi.be, mail.thompsonhanson.com, 180newyork.com and two others — share IP numbers with theoryofknowledge.net.

Name Servers

theoryofknowledge.net is served by two delegated name servers, coco.ns.cloudflare.com and fred.ns.cloudflare.com.

theoryofknowledge.net shares its name server setup with other domains, including 0mark.com, pkat.gr, fashiond.gr and two others.

theoryofknowledge.net partially shares its NS delegation with several other domains, including d4f3d1971e90.com, annaeverywhere.com, 12b01d2709bb.com and two others.

The name servers fatima.ns.cloudflare.com, ernest.ns.cloudflare.com, elijah.ns.cloudflare.com and vin.ns.cloudflare.com are often found in use alongside these name servers.

Host names with 6 IP numbers:

coco.ns.cloudflare.com carries IP addresses 108.162.192.104, 172.64.32.104 and 173.245.58.104, with 3 other addresses beyond those.

fred.ns.cloudflare.com carries IP addresses 108.162.193.113, 172.64.33.113 and 173.245.59.113, with 3 other addresses beyond those.

Mail Servers

theoryofknowledge.net is handled by five mail servers: aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com and two others.

theoryofknowledge.net shares mail servers — at least in part — with other domains, including ns500698.ns500759.ns500758.ns500735.ns500735.ns500708.ns500708.ns500619.ns500619.ns500619.ns500576.trackreceptor.com, ns500759.ns500759.ns500759.ns500758.ns500698.ns500698.ns500736.ns500576.ns500576.ns500698.ns500619.trackreceptor.com, ns500754.ns500731.ns500671.ns500671.ns500731.ns500704.ns500678.ns500671.ns500704.ns500678.ns500291.ns500666.tenderladiesbz.com and two others.

These mail servers are frequently paired with the mail servers alt3.aspmx.l.google.com, alt4.aspmx.l.google.com, aspmx2.googlemail.com and aspmx3.googlemail.com.

Host names with two IP numbers:

aspmx.l.google.com maps to two IP addresses — 64.233.180.27 and 2607:f8b0:4004:c23::1a.

alt1.aspmx.l.google.com maps to two IP addresses — 192.178.234.27 and 2800:3f0:4003:c14::1b.

alt2.aspmx.l.google.com maps to two IP addresses — 172.253.116.26 and 2a00:1450:400b:c02::1b.

alt3.aspmx.l.google.com maps to two IP addresses — 192.178.223.26 and 2a00:1450:4009:c0f::1b.

alt4.aspmx.l.google.com maps to two IP addresses — 172.253.157.26 and 2a00:1450:400c:c23::1b.