knowledge.dev - dns.ninja

🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`knowledge.dev`

DNSSEC	⚠️ Not signed
A	3.170.3.16^{🇺🇸 Amazon3.170.3.0/24}
		PTR	`server-3-170-3-16.iad55.r.cloudfront.net`
A	3.170.3.23^{🇺🇸 Amazon3.170.3.0/24}
A	3.170.3.84^{🇺🇸 Amazon3.170.3.0/24}
A	3.170.3.125^{🇺🇸 Amazon3.170.3.0/24}
NS	`ns-373.awsdns-46.com` ⭐
		A	2600:9000:5301:7500::1^{🇺🇸 Amazon2600:9000:5301::/48 - CloudFront}
			PTR	`ns-373.awsdns-46.com`
		A	205.251.193.117^{🇺🇸 Amazon205.251.193.0/24 prefix}
			PTR	`ns-373.awsdns-46.com`
NS	`ns-1306.awsdns-35.org`
		A	2600:9000:5305:1a00::1^{🇺🇸 Amazon2600:9000:5305::/48 - CloudFront}
			PTR	`ns-1306.awsdns-35.org`
		A	205.251.197.26^{🇺🇸 Amazon205.251.197.0/24 prefix}
			PTR	`ns-1306.awsdns-35.org`
NS	`ns-1830.awsdns-36.co.uk`
		A	2600:9000:5307:2600::1^{🇺🇸 Amazon2600:9000:5307::/48 - CloudFront}
			PTR	`ns-1830.awsdns-36.co.uk`
		A	205.251.199.38^{🇺🇸 Amazon205.251.199.0/24 prefix}
			PTR	`ns-1830.awsdns-36.co.uk`
NS	`ns-704.awsdns-24.net`
		A	2600:9000:5302:c000::1^{🇺🇸 Amazon2600:9000:5302::/48 - CloudFront}
			PTR	`ns-704.awsdns-24.net`
		A	205.251.194.192^{🇺🇸 Amazon205.251.194.0/24 prefix}
			PTR	`ns-704.awsdns-24.net`
MX	`smtp.google.com` ⭐
		A	2607:f8b0:4004:c07::1a^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`bc-in-f26.1e100.net`
		A	2607:f8b0:4004:c07::1b^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`bc-in-f27.1e100.net`
		A	2607:f8b0:4004:c1f::1a^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`pd-in-f26.1e100.net`
		A	2607:f8b0:4004:c21::1b^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`pe-in-f27.1e100.net`
		A	64.233.180.26^{🇺🇸 Google64.233.180.0/24}
			PTR	`on-in-f26.1e100.net`
			PTR	`pe-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`
		A	142.251.179.26^{🇺🇸 Google142.251.179.0/24}
			PTR	`pd-in-f26.1e100.net`
		A	172.253.62.26^{🇺🇸 Google172.253.62.0/24}
			PTR	`bc-in-f26.1e100.net`
		A	172.253.62.27^{🇺🇸 Google172.253.62.0/24}
			PTR	`bc-in-f27.1e100.net`
TXT	`paddle-verification=c0245535`
TXT	`v=spf1 include:zohomail.eu ~all`
TXT	`zoho-verification=zb98748253.zmverify.zoho.eu`
SOA	`ns-373.awsdns-46.com`awsdns-hostmaster@amazon.com serial=1

`dev`

	DNSSEC	🔒 Signed (DS record present)
	NS	`ns-tld1.charlestonroadregistry.com` ⭐
	NS	`ns-tld2.charlestonroadregistry.com`
	NS	`ns-tld3.charlestonroadregistry.com`
	NS	`ns-tld4.charlestonroadregistry.com`
	NS	`ns-tld5.charlestonroadregistry.com`
	SOA	`ns-tld1.charlestonroadregistry.com`cloud-dns-hostmaster@google.com serial=1

🔒 HSTS Preload (+subdomains)

Same first word

knowledge.work

knowledge.org.tw

knowledge.cz

knowledge.edu.rs

knowledge.bio

knowledge.exposed

knowledge.mx

knowledge.codes

knowledge.life

knowledge.coop

knowledge.no

knowledge.cards

knowledge.cafe

knowledge.services

knowledge.forum

knowledge.fit

knowledge.fashion

knowledge.homes

knowledge.ro

knowledge.dev

knowledge.email

knowledge.store

knowledge.de.com

knowledge.best

knowledge.dog

knowledge.me

knowledge.capital

knowledge.rest

knowledge.construction

knowledge.com.pa

knowledge.su

knowledge.gg

knowledge.farm

knowledge.ca

knowledge.ru

knowledge.ch

knowledge.im

knowledge.io

knowledge.camp

knowledge.money

knowledge.plus

knowledge.poker

knowledge.co.uk

knowledge.legal

knowledge.ao

knowledge.systems

knowledge.works

knowledge.gratis

knowledge.productions

knowledge.se

knowledge.chat

knowledge.co.il

knowledge.center

knowledge.com.kw

knowledge.adm.br

knowledge.nl

knowledge.fitness

knowledge.beer

knowledge.network

knowledge.app

knowledge.university

knowledge.builders

knowledge.fi

knowledge.investments

knowledge.uk.com

knowledge.de

knowledge.info

knowledge.academy

knowledge.forsale

knowledge.wtf

knowledge.asia

knowledge.lv

knowledge.skin

knowledge.com.sa

knowledge.free

knowledge.ai

knowledge.ovh

knowledge.com.in

knowledge.space

knowledge.clinic

knowledge.care

knowledge.org.il

knowledge.wine

knowledge.school

knowledge.wiki

knowledge.net.nz

knowledge.or.kr

knowledge.org.uk

knowledge.mom

knowledge.yachts

knowledge.casa

knowledge.love

knowledge.monster

knowledge.ne.jp

knowledge.kr

knowledge.digital

knowledge.no-ip.org

knowledge.nexus

knowledge.ventures

knowledge.za.org

Similar names

Previous names

know2do.dev

knowable.dev

knoway.dev

knowbase.dev

knowbetter.dev

knowby.dev

knowbyreport.dev

knowde.dev

knowdocs.dev

knower.dev

knowhere-japan.dev

knowhub.dev

knowhup.dev

knowhy.dev

knowide.dev

knowify.dev

knowir.dev

knowit.dev

knowlats.dev

Next names

DNS History

17 records (9 active, 8 former)

●NSns-1306.awsdns-35.org2026-08-27 → 2026-09-04 · 2 obs

● 2026-08-27 13:56:18
● 2026-09-04 02:17:32

●NSns-1830.awsdns-36.co.uk2026-08-27 → 2026-09-04 · 2 obs

● 2026-08-27 13:56:18
● 2026-09-04 02:17:32

●NSns-373.awsdns-46.com2026-08-27 → 2026-09-04 · 2 obs

● 2026-08-27 13:56:18
● 2026-09-04 02:17:32

●NSns-704.awsdns-24.net2026-08-27 → 2026-09-04 · 2 obs

● 2026-08-27 13:56:18
● 2026-09-04 02:17:32

●MXsmtp.google.com2026-08-27 → 2026-09-04 · 6 obs

● 2026-08-27 13:56:18
○ 2026-09-03 01:27:58
● 2026-09-03 02:38:02
○ 2026-09-03 08:27:12
● 2026-09-03 09:31:44
● 2026-09-04 02:17:32

○A18.154.206.492026-08-29 → 2026-08-30 · 6 obs

○ 2026-08-28 09:39:22
● 2026-08-29 02:31:38
○ 2026-08-29 03:39:52
● 2026-08-30 19:41:48
○ 2026-08-30 20:28:14
○ 2026-09-04 02:17:32

○A18.154.206.542026-08-29 → 2026-08-30 · 6 obs

○ 2026-08-28 09:39:22
● 2026-08-29 02:31:38
○ 2026-08-29 03:39:52
● 2026-08-30 19:41:48
○ 2026-08-30 20:28:14
○ 2026-09-04 02:17:32

○A18.154.206.62026-08-29 → 2026-08-30 · 6 obs

○ 2026-08-28 09:39:22
● 2026-08-29 02:31:38
○ 2026-08-29 03:39:52
● 2026-08-30 19:41:48
○ 2026-08-30 20:28:14
○ 2026-09-04 02:17:32

○A18.154.206.722026-08-29 → 2026-08-30 · 6 obs

○ 2026-08-28 09:39:22
● 2026-08-29 02:31:38
○ 2026-08-29 03:39:52
● 2026-08-30 19:41:48
○ 2026-08-30 20:28:14
○ 2026-09-04 02:17:32

●A3.170.3.1252026-08-27 → 2026-09-04 · 19 obs

○ 2026-08-27 13:56:18
● 2026-08-27 19:57:18
○ 2026-08-28 00:38:58
● 2026-08-28 01:49:32
○ 2026-08-28 07:21:24
● 2026-08-28 09:39:22
○ 2026-08-29 02:31:38
● 2026-08-29 03:39:52
○ 2026-08-29 19:35:38
● 2026-08-29 21:31:22
○ 2026-08-30 19:41:48
● 2026-08-30 20:28:14
○ 2026-09-03 01:27:58
● 2026-09-03 02:38:02
○ 2026-09-03 08:27:12
● 2026-09-03 09:31:44
○ 2026-09-03 12:18:24
● 2026-09-03 15:02:38
● 2026-09-04 02:17:32

●A3.170.3.162026-08-27 → 2026-09-04 · 19 obs

●A3.170.3.232026-08-27 → 2026-09-04 · 19 obs

●A3.170.3.842026-08-27 → 2026-09-04 · 19 obs

○A99.86.12.1062026-08-27 → 2026-09-03 · 11 obs

● 2026-08-27 13:56:18
○ 2026-08-27 19:57:18
● 2026-08-28 00:38:58
○ 2026-08-28 01:49:32
● 2026-08-28 07:21:24
○ 2026-08-28 09:39:22
● 2026-08-29 19:35:38
○ 2026-08-29 21:31:22
● 2026-09-03 12:18:24
○ 2026-09-03 15:02:38
○ 2026-09-04 02:17:32

○A99.86.12.1232026-08-27 → 2026-09-03 · 11 obs

○A99.86.12.62026-08-27 → 2026-09-03 · 11 obs

○A99.86.12.902026-08-27 → 2026-09-03 · 11 obs

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
dev	ns-tld1.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com, ns-tld3.charlestonroadregistry.com, ns-tld4.charlestonroadregistry.com...	-
knowledge.dev	ns-1306.awsdns-35.org, ns-704.awsdns-24.net, ns-373.awsdns-46.com, ns-1830.awsdns-36.co.uk	-

✅ Authoritative Response

Server:205.251.193.117

NS records: ns-1306.awsdns-35.org, ns-704.awsdns-24.net, ns-373.awsdns-46.com, ns-1830.awsdns-36.co.uk

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for knowledge.dev (unsigned zone)

⏱️ Timing

Total: 809ms | Queries: -

📄 Records

Type	Count	Sample Data
A	4	`3.170.3.23, 3.170.3.16...`
NS	4	`ns-1306.awsdns-35.org, ns-1830.awsdns-36.co.uk...`
MX	1	`smtp.google.com (pri: 1)`
TXT	3	`paddle-verification=c0245535, v=spf1 include:zohomail.eu ~all...`
SOA	1	`ns-373.awsdns-46.com awsdns-hostmaster.a`

Analysis

IP Addresses

knowledge.dev resolves to four IP addresses: 3.170.3.16, 3.170.3.23, 3.170.3.84 and 3.170.3.125.

d2vqu6r2szz09w.cloudfront.net, d3qc91ut97epj1.cloudfront.net, www.aooni2-database.com and two other host names share IP numbers with knowledge.dev.

Name Servers

The authoritative name servers for knowledge.dev are ns-373.awsdns-46.com, ns-704.awsdns-24.net, ns-1306.awsdns-35.org and ns-1830.awsdns-36.co.uk.

knowledge.dev has at least partial name server overlap with other domains, such as heafnerchevy.com, leastactionlabs.com, heidigital.com and two others.

These name servers tend to appear together with the name servers ns-204.awsdns-25.com, ns-761.awsdns-31.net and ns-1716.awsdns-22.co.uk.

ns-373.awsdns-46.com, ns-704.awsdns-24.net, ns-1306.awsdns-35.org and ns-1830.awsdns-36.co.uk all point to exactly two IP numbers each: ns-373.awsdns-46.com → 205.251.193.117 and 2600:9000:5301:7500::1; ns-704.awsdns-24.net → 205.251.194.192 and 2600:9000:5302:c000::1; ns-1306.awsdns-35.org → 205.251.197.26 and 2600:9000:5305:1a00::1; ns-1830.awsdns-36.co.uk → 205.251.199.38 and 2600:9000:5307:2600::1.

Mail Servers

Mail for knowledge.dev is handled by a single mail server, smtp.google.com.

knowledge.dev uses an identical mail server configuration to several other domains — among them clarkcheung.com, gofoundationearlylearning.org, rsaffiliate.com and two more.

knowledge.dev has at least partial mail server overlap with other domains such as wingmate.events, 42robots.ai, nhr.com.tw and two more.

These mail servers commonly appear together with aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com and two other mail servers.

smtp.google.com resolves to 9 IP addresses — 64.233.180.26, 64.233.180.27, 142.251.179.26 and 6 others.