`knowledgebase.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3032::ac43:9741^{🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3033::6815:9c^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.0.156^{Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.151.65^{🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`ruth.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3a8f^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ruth.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c08f^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`ruth.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:208f^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`ruth.ns.cloudflare.com`
		A	108.162.192.143^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
		A	172.64.32.143^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
		A	173.245.58.143^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
NS	`vin.ns.cloudflare.com`
		A	2606:4700:58::adf5:3bf5^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`vin.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c1f5^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`vin.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:21f5^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`vin.ns.cloudflare.com`
		A	108.162.193.245^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`vin.ns.cloudflare.com`
		A	172.64.33.245^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`vin.ns.cloudflare.com`
		A	173.245.59.245^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`vin.ns.cloudflare.com`
MX	`aspmx.l.google.com` ⭐
		A	2607:f8b0:4004:c1f::1b^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`pd-in-f27.1e100.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:c0f::1a^{🇨🇱 Google2800:3f0:4003::/48}
		A	108.177.123.26^{🇺🇸 Google108.177.123.0/24}
			PTR	`lcscld-in-f26.1e100.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	192.178.223.27^{🇺🇸 Google192.178.223.0/24}
			PTR	`yulhrs-in-f27.1e100.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	`apple-domain-verification=tPlbd8bIzPEcvHD44eNB9LhEzwBX3s6B_RbWLpPnge0`
TXT	`google-site-verification=44avr7fzqGQDfZw8EkqYvaHPF3m-pYtusBMK3qWn8EI`
TXT	`google-site-verification=ISvKTTBfU1KZA8johouLyEMcGvp0dIFovcFu0M0cPOk`
TXT	`v=spf1 include:_spf.google.com -all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.0.156, 172.67.151.65
		IPv6 hints	2606:4700:3032::ac43:9741, 2606:4700:3033::6815:9c
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=57, name=cloudflare-ech.com
SOA	`ruth.ns.cloudflare.com`dns@cloudflare.com serial=2405285041

`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=1783199481

rank #431701 globally
rank #184050 in the tld

Subdomains

www.knowledgebase.com

Same first word

Similar names

baseknowledge.com

knolwedgebase.com

DNS History

21 records (11 active, 10 former)

○NSns1.tierra.net2015-06-12 → 2017-07-08 · 4 obs

● 2015-06-12 12:04:32
● 2017-07-08 00:32:04
○ 2026-03-14 03:13:46
○ 2026-07-04 21:13:18

○NSns2.tierra.net2015-06-12 → 2017-07-08 · 4 obs

● 2015-06-12 12:04:32
● 2017-07-08 00:32:04
○ 2026-03-14 03:13:46
○ 2026-07-04 21:13:18

●NSruth.ns.cloudflare.com2026-03-14 → 2026-07-04 · 3 obs

○ 2017-07-08 00:32:04
● 2026-03-14 03:13:46
● 2026-07-04 21:13:18

●NSvin.ns.cloudflare.com2026-03-14 → 2026-07-04 · 3 obs

○ 2017-07-08 00:32:04
● 2026-03-14 03:13:46
● 2026-07-04 21:13:18

●MXalt1.aspmx.l.google.com2026-03-14 → 2026-07-04 · 3 obs

○ 2017-07-08 00:32:04
● 2026-03-14 03:13:46
● 2026-07-04 21:13:18

●MXalt2.aspmx.l.google.com2026-03-14 → 2026-07-04 · 3 obs

○ 2017-07-08 00:32:04
● 2026-03-14 03:13:46
● 2026-07-04 21:13:18

●MXalt3.aspmx.l.google.com2026-03-14 → 2026-07-04 · 3 obs

○ 2017-07-08 00:32:04
● 2026-03-14 03:13:46
● 2026-07-04 21:13:18

●MXalt4.aspmx.l.google.com2026-03-14 → 2026-07-04 · 3 obs

○ 2017-07-08 00:32:04
● 2026-03-14 03:13:46
● 2026-07-04 21:13:18

●MXaspmx.l.google.com2026-03-14 → 2026-07-04 · 3 obs

○ 2017-07-08 00:32:04
● 2026-03-14 03:13:46
● 2026-07-04 21:13:18

○MXmx1.daemonmail.net2015-06-12 → 2017-07-08 · 4 obs

● 2015-06-12 12:04:32
● 2017-07-08 00:32:04
○ 2026-03-14 03:13:46
○ 2026-07-04 21:13:18

○MXmx2.daemonmail.net2015-06-12 → 2017-07-08 · 4 obs

● 2015-06-12 12:04:32
● 2017-07-08 00:32:04
○ 2026-03-14 03:13:46
○ 2026-07-04 21:13:18

●A104.21.0.1562026-03-24 → 2026-07-04 · 16 obs

○ 2026-03-14 03:13:46
● 2026-03-24 17:01:52
● 2026-04-09 10:14:54
○ 2026-04-10 14:23:54
● 2026-04-22 02:51:54
○ 2026-04-22 11:53:52
● 2026-04-24 04:52:12
● 2026-05-09 12:08:16
○ 2026-05-16 22:48:12
● 2026-05-20 15:36:04
○ 2026-05-21 21:06:38
● 2026-05-29 06:50:56
● 2026-06-09 09:28:50
○ 2026-06-17 20:51:40
● 2026-06-25 12:21:50
● 2026-07-04 21:13:18

●A172.67.151.652026-03-24 → 2026-07-04 · 16 obs

○A188.114.96.02026-03-14 → 2026-06-17 · 17 obs

○ 2017-07-08 00:32:04
● 2026-03-14 03:13:46
○ 2026-03-24 17:01:52
○ 2026-04-09 10:14:54
● 2026-04-10 14:23:54
○ 2026-04-22 02:51:54
● 2026-04-22 11:53:52
○ 2026-04-24 04:52:12
○ 2026-05-09 12:08:16
● 2026-05-16 22:48:12
○ 2026-05-20 15:36:04
● 2026-05-21 21:06:38
○ 2026-05-29 06:50:56
○ 2026-06-09 09:28:50
● 2026-06-17 20:51:40
○ 2026-06-25 12:21:50
○ 2026-07-04 21:13:18

○A188.114.97.02026-03-14 → 2026-06-17 · 17 obs

○A209.240.157.352015-06-12 → 2017-07-08 · 4 obs

● 2015-06-12 12:04:32
● 2017-07-08 00:32:04
○ 2026-03-14 03:13:46
○ 2026-07-04 21:13:18

●A2606:4700:3032::ac43:97412026-03-24 → 2026-07-04 · 16 obs

●A2606:4700:3033::6815:9c2026-06-25 → 2026-07-04 · 3 obs

○ 2026-06-17 20:51:40
● 2026-06-25 12:21:50
● 2026-07-04 21:13:18

○A2606:4700:3035::6815:9c2026-03-24 → 2026-06-09 · 15 obs

○A2a06:98c1:3120::2026-03-14 → 2026-06-17 · 17 obs

○A2a06:98c1:3121::2026-03-14 → 2026-06-17 · 17 obs

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	c.gtld-servers.net, l.gtld-servers.net, h.gtld-servers.net, j.gtld-servers.net...	-
knowledgebase.com	ruth.ns.cloudflare.com, vin.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.192.143

NS records: ruth.ns.cloudflare.com, vin.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for knowledgebase.com (unsigned zone)

⏱️ Timing

Total: 161ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.0.156, 172.67.151.65`
AAAA	2	`2606:4700:3033::6815:9c, 2606:4700:3032::ac43:9741`
NS	2	`ruth.ns.cloudflare.com, vin.ns.cloudflare.com`
MX	5	`aspmx.l.google.com (pri: 1), alt3.aspmx.l.google.com (pri: 10)...`
TXT	4	`apple-domain-verification=tPlbd8bIzPEcvH, google-site-verification=44avr7fzqGQDfZw...`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`ruth.ns.cloudflare.com dns.cloudflare.co`

📌 Glue Records Collected

Total: 12

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

Analysis

Hierarchy

knowledgebase.com is a parent domain of www.knowledgebase.com.

IP Addresses

knowledgebase.com resolves to four IP addresses: 104.21.0.156, 172.67.151.65, 2606:4700:3032::ac43:9741 and 2606:4700:3033::6815:9c.

Among the host names that share IP numbers with knowledgebase.com are mail.pillerutenresept.com, www.217361.com, 7photo.net and two others.

Name Servers

knowledgebase.com has two authoritative name servers — ruth.ns.cloudflare.com and vin.ns.cloudflare.com.

knowledgebase.com has the same name server delegation as a number of other domains, such as pedroramon.com, jscode-tt-c.workers.dev, joshop.cam and two more.

knowledgebase.com shares at least some of its name servers with other domains, including pourau.nz, thesourcebulkfoods.net, billee.com and two others.

These name servers are frequently seen alongside the name servers coco.ns.cloudflare.com, seth.ns.cloudflare.com, olof.ns.cloudflare.com and fred.ns.cloudflare.com.

Host names resolving to 6 IP numbers:

ruth.ns.cloudflare.com points to 108.162.192.143, 172.64.32.143, 173.245.58.143 and 3 other IP addresses.

vin.ns.cloudflare.com points to 108.162.193.245, 172.64.33.245, 173.245.59.245 and 3 other IP addresses.

Mail Servers

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

knowledgebase.com shares at least some of its mail servers with other domains — for example igoal.com.br, westernoaks.org, lesamisdonno.com and two more.

It is common for these mail servers to co-occur with alt3.aspmx.l.google.com, alt4.aspmx.l.google.com, aspmx2.googlemail.com and aspmx3.googlemail.com as mail servers.

Hosts with two IP numbers each:

aspmx.l.google.com resolves to 64.233.180.27 and 2607:f8b0:4004:c1f::1b.

alt1.aspmx.l.google.com resolves to 108.177.123.26 and 2800:3f0:4003:c0f::1a.

alt2.aspmx.l.google.com resolves to 172.253.116.26 and 2a00:1450:400b:c02::1b.

alt3.aspmx.l.google.com resolves to 192.178.223.27 and 2a00:1450:4009:c0f::1b.

alt4.aspmx.l.google.com resolves to 172.253.157.26 and 2a00:1450:400c:c23::1b.