`knuthuus.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3031::ac43:be96^{🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3035::6815:51c1^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.81.193^{Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.190.150^{🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`david.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b98^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`david.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c198^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`david.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2198^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`david.ns.cloudflare.com`
		A	108.162.193.152^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`david.ns.cloudflare.com`
		A	172.64.33.152^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`david.ns.cloudflare.com`
		A	173.245.59.152^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`david.ns.cloudflare.com`
NS	`nina.ns.cloudflare.com`
		A	2606:4700:50::adf5:3a88^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nina.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c088^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`nina.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2088^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`nina.ns.cloudflare.com`
		A	108.162.192.136^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nina.ns.cloudflare.com`
		A	172.64.32.136^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nina.ns.cloudflare.com`
		A	173.245.58.136^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nina.ns.cloudflare.com`
MX	`mx1.emailowl.com` ⭐
		A	107.191.41.169^{🇺🇸 AS-VULTR107.191.40.0/22 Vultr Assigned Prefix}
			PTR	`mx6.emailowl.com`
MX	`mx2.emailowl.com` ⭐
		A	107.170.208.118^{🇺🇸 DIGITALOCEAN107.170.192.0/18 DigitalOcean}
			PTR	`mx2.emailowl.com`
MX	`mx3.emailowl.com` ⭐
		A	188.226.221.25^{🇳🇱 DIGITALOCEAN188.226.128.0/17 DigitalOcean}
			PTR	`mx3.emailowl.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.81.193, 172.67.190.150
		IPv6 hints	2606:4700:3031::ac43:be96, 2606:4700:3035::6815:51c1
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=105, name=cloudflare-ech.com
SOA	`david.ns.cloudflare.com`dns@cloudflare.com serial=2401451763

`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=1777117716

WOT: SAFE (67/100)

Previously MX for

knuthuus.com

Same first word

knuthuus.com

DNS History

19 records (9 active, 10 former)

●NSdavid.ns.cloudflare.com2016-06-22 → 2026-04-25 · 3 obs

○ 2015-06-23 11:29:28
● 2016-06-22 18:56:24
● 2026-04-25 11:57:00

●NSnina.ns.cloudflare.com2016-06-22 → 2026-04-25 · 3 obs

○ 2015-06-23 11:29:28
● 2016-06-22 18:56:24
● 2026-04-25 11:57:00

○NSns1.md-pb-iqsv.com2015-06-23 → 2015-06-23 · 3 obs

● 2015-06-23 11:29:28
○ 2016-06-22 18:56:24
○ 2026-04-25 11:57:00

○NSns2.md-pb-iqsv.com2015-06-23 → 2015-06-23 · 3 obs

● 2015-06-23 11:29:28
○ 2016-06-22 18:56:24
○ 2026-04-25 11:57:00

○MXknuthuus.com2015-06-23 → 2015-06-23 · 3 obs

● 2015-06-23 11:29:28
○ 2016-06-22 18:56:24
○ 2026-04-25 11:57:00

●MXmx1.emailowl.com2016-06-22 → 2026-04-25 · 3 obs

○ 2015-06-23 11:29:28
● 2016-06-22 18:56:24
● 2026-04-25 11:57:00

●MXmx2.emailowl.com2016-06-22 → 2026-04-25 · 3 obs

○ 2015-06-23 11:29:28
● 2016-06-22 18:56:24
● 2026-04-25 11:57:00

●MXmx3.emailowl.com2016-06-22 → 2026-04-25 · 3 obs

○ 2015-06-23 11:29:28
● 2016-06-22 18:56:24
● 2026-04-25 11:57:00

●A104.21.81.1932026-04-14 → 2026-04-25 · 3 obs

○ 2020-01-04 18:01:26
● 2026-04-14 15:15:24
● 2026-04-25 11:57:00

○A104.27.162.1412016-06-22 → 2020-01-04 · 5 obs

○ 2015-06-23 11:29:28
● 2016-06-22 18:56:24
● 2020-01-04 18:01:26
○ 2026-04-14 15:15:24
○ 2026-04-25 11:57:00

○A104.27.163.1412016-06-22 → 2020-01-04 · 5 obs

○ 2015-06-23 11:29:28
● 2016-06-22 18:56:24
● 2020-01-04 18:01:26
○ 2026-04-14 15:15:24
○ 2026-04-25 11:57:00

●A172.67.190.1502026-04-14 → 2026-04-25 · 3 obs

○ 2020-01-04 18:01:26
● 2026-04-14 15:15:24
● 2026-04-25 11:57:00

○A2400:cb00:2048:1::681b:a28d2016-06-22 → 2017-02-17 · 5 obs

○ 2015-06-23 11:29:28
● 2016-06-22 18:56:24
● 2017-02-17 14:56:58
○ 2020-01-04 18:01:26
○ 2026-04-25 11:57:00

○A2400:cb00:2048:1::681b:a38d2016-06-22 → 2017-02-17 · 5 obs

○ 2015-06-23 11:29:28
● 2016-06-22 18:56:24
● 2017-02-17 14:56:58
○ 2020-01-04 18:01:26
○ 2026-04-25 11:57:00

○A2606:4700:30::681b:a28d2020-01-04 → 2020-01-04 · 4 obs

○ 2017-02-17 14:56:58
● 2020-01-04 18:01:26
○ 2026-04-14 15:15:24
○ 2026-04-25 11:57:00

○A2606:4700:30::681b:a38d2020-01-04 → 2020-01-04 · 4 obs

○ 2017-02-17 14:56:58
● 2020-01-04 18:01:26
○ 2026-04-14 15:15:24
○ 2026-04-25 11:57:00

●A2606:4700:3031::ac43:be962026-04-14 → 2026-04-25 · 3 obs

○ 2020-01-04 18:01:26
● 2026-04-14 15:15:24
● 2026-04-25 11:57:00

●A2606:4700:3035::6815:51c12026-04-14 → 2026-04-25 · 3 obs

○ 2020-01-04 18:01:26
● 2026-04-14 15:15:24
● 2026-04-25 11:57:00

○A66.221.63.2452015-06-23 → 2015-06-23 · 3 obs

● 2015-06-23 11:29:28
○ 2016-06-22 18:56:24
○ 2026-04-25 11:57:00

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
knuthuus.com	nina.ns.cloudflare.com, david.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.192.136

NS records: nina.ns.cloudflare.com, david.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for knuthuus.com (unsigned zone)

⏱️ Timing

Total: 554ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.190.150, 104.21.81.193`
AAAA	2	`2606:4700:3035::6815:51c1, 2606:4700:3031::ac43:be96`
NS	2	`david.ns.cloudflare.com, nina.ns.cloudflare.com`
MX	3	`mx1.emailowl.com (pri: 10), mx2.emailowl.com (pri: 10)...`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`david.ns.cloudflare.com dns.cloudflare.c`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

knuthuus.com points to four IP numbers: 2606:4700:3031::ac43:be96, 2606:4700:3035::6815:51c1, 104.21.81.193 and 172.67.190.150.

Other host names, for instance magnet.com.co, ag-prod-online-edge-api-gateway.pro, (0x6675636b)bookgreece.net, www.haydonperryman.com and taoscript.com share IP numbers with knuthuus.com.

Name Servers

Delegation for knuthuus.com rests with two name servers, david.ns.cloudflare.com and nina.ns.cloudflare.com.

knuthuus.com shares the same name server setup as other domains, including erotikum.com, hotpartys.com, germainedesigns.com, musculardevelopment.com and microsgfgdwe557845784869654wfhjhcjcghrst5426578gjhgchfgdsf.pages.dev.

knuthuus.com at least partially shares name servers with other domains, for instance slashstudio.pl, marygraceswim.com, deathclock.net, elevationsbyzs.com and lackerdeu.org.

these name servers are commonly used with chad.ns.cloudflare.com, arya.ns.cloudflare.com and joyce.ns.cloudflare.com.

Host names with six IP numbers: david.ns.cloudflare.com points to: 2606:4700:58::adf5:3b98, 2803:f800:50::6ca2:c198, 2a06:98c1:50::ac40:2198, 108.162.193.152, 172.64.33.152 and 173.245.59.152. nina.ns.cloudflare.com points to: 2606:4700:50::adf5:3a88, 2803:f800:50::6ca2:c088, 2a06:98c1:50::ac40:2088, 108.162.192.136, 172.64.32.136 and 173.245.58.136.

Mail Servers

knuthuus.com is handled by three mail servers: mx1.emailowl.com, mx2.emailowl.com and mx3.emailowl.com.

knuthuus.com shares mail servers with other domains at least in part, for instance oskarwilczynski.com, (0x6e756465)newbies.com, all-proaquatics.com, is55.com and cutmp3.online.

Host names with one IP number:

mx1.emailowl.com points to 107.191.41.169.

mx2.emailowl.com points to 107.170.208.118.

mx3.emailowl.com points to 188.226.221.25.

knuthuus.com - robtex.com

knuthuus.com

com

Previously MX for

Same first word

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

IP Addresses

Name Servers

Mail Servers

`knuthuus.com`

`com`