`designforusability.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3032::ac43:db19^{🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3034::6815:3e1c^{🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.62.28^{Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.219.25^{🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`dave.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b6d^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dave.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c16d^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`dave.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:216d^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`dave.ns.cloudflare.com`
		A	108.162.193.109^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dave.ns.cloudflare.com`
		A	172.64.33.109^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dave.ns.cloudflare.com`
		A	173.245.59.109^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dave.ns.cloudflare.com`
NS	`lindsey.ns.cloudflare.com`
		A	2606:4700:50::a29f:2605^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`lindsey.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c205^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`lindsey.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2205^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`lindsey.ns.cloudflare.com`
		A	108.162.194.5^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`lindsey.ns.cloudflare.com`
		A	162.159.38.5^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`lindsey.ns.cloudflare.com`
		A	172.64.34.5^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`lindsey.ns.cloudflare.com`
MX	`mx1-hosting.jellyfish.systems` ⭐
		A	162.255.118.28^{🇺🇸 NAMCHEAP-PH162.255.118.0/24 Namecheap, Inc. 11400 W. Olympic Blvd. Suite 200 Los Angeles, CA 90064 UNITED STATES}
			PTR	`oxse3a.privateemail.com`
MX	`mx2-hosting.jellyfish.systems`⁽¹⁰⁾
		A	162.255.118.29^{🇺🇸 NAMCHEAP-PH162.255.118.0/24 Namecheap, Inc. 11400 W. Olympic Blvd. Suite 200 Los Angeles, CA 90064 UNITED STATES}
			PTR	`oxse2b.privateemail.com`
MX	`mx3-hosting.jellyfish.systems`⁽²⁰⁾
		A	162.255.118.13^{🇺🇸 NAMCHEAP-PH162.255.118.0/24 Namecheap, Inc. 11400 W. Olympic Blvd. Suite 200 Los Angeles, CA 90064 UNITED STATES}
			PTR	`mx3-hosting.jellyfish.systems`
TXT	`v=spf1 +a +mx +ip4:162.0.232.73 include:spf.web-hosting.com ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.62.28, 172.67.219.25
		IPv6 hints	2606:4700:3032::ac43:db19, 2606:4700:3034::6815:3e1c
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=194, name=cloudflare-ech.com
SOA	`dave.ns.cloudflare.com`dns@cloudflare.com serial=2403888750

`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=1778878196

Subdomains

www.designforusability.com

Same first word

designforusability.com

DNS History

25 records (9 active, 16 former)

●NSdave.ns.cloudflare.com2026-04-19 → 2026-05-15 · 3 obs

○ 2017-12-20 07:58:54
● 2026-04-19 08:53:02
● 2026-05-15 21:08:30

○NSdns1.registrar-servers.com2016-01-27 → 2017-12-20 · 5 obs

○ 2015-11-09 04:41:38
● 2016-01-27 10:56:08
● 2017-12-20 07:58:54
○ 2026-04-19 08:53:02
○ 2026-05-15 21:08:30

○NSdns2.registrar-servers.com2016-01-27 → 2017-12-20 · 5 obs

○ 2015-11-09 04:41:38
● 2016-01-27 10:56:08
● 2017-12-20 07:58:54
○ 2026-04-19 08:53:02
○ 2026-05-15 21:08:30

○NSdns3.registrar-servers.com2016-01-27 → 2016-04-19 · 5 obs

○ 2015-11-09 04:41:38
● 2016-01-27 10:56:08
● 2016-04-19 15:28:36
○ 2016-12-06 02:46:04
○ 2026-05-15 21:08:30

○NSdns4.registrar-servers.com2016-01-27 → 2016-04-19 · 5 obs

○ 2015-11-09 04:41:38
● 2016-01-27 10:56:08
● 2016-04-19 15:28:36
○ 2016-12-06 02:46:04
○ 2026-05-15 21:08:30

○NSdns5.registrar-servers.com2016-01-27 → 2016-04-19 · 5 obs

○ 2015-11-09 04:41:38
● 2016-01-27 10:56:08
● 2016-04-19 15:28:36
○ 2016-12-06 02:46:04
○ 2026-05-15 21:08:30

●NSlindsey.ns.cloudflare.com2026-04-19 → 2026-05-15 · 3 obs

○ 2017-12-20 07:58:54
● 2026-04-19 08:53:02
● 2026-05-15 21:08:30

○NSns1.livedns.co.uk2015-07-06 → 2015-11-09 · 4 obs

● 2015-07-06 15:19:28
● 2015-11-09 04:41:38
○ 2016-01-27 10:56:08
○ 2026-05-15 21:08:30

○NSns2.livedns.co.uk2015-07-06 → 2015-11-09 · 4 obs

● 2015-07-06 15:19:28
● 2015-11-09 04:41:38
○ 2016-01-27 10:56:08
○ 2026-05-15 21:08:30

○NSns3.livedns.co.uk2015-07-06 → 2015-11-09 · 4 obs

● 2015-07-06 15:19:28
● 2015-11-09 04:41:38
○ 2016-01-27 10:56:08
○ 2026-05-15 21:08:30

○MXeforward1.registrar-servers.com2016-01-27 → 2017-12-20 · 4 obs

● 2016-01-27 10:56:08
● 2017-12-20 07:58:54
○ 2026-04-19 08:53:02
○ 2026-05-15 21:08:30

○MXeforward2.registrar-servers.com2016-01-27 → 2017-12-20 · 4 obs

● 2016-01-27 10:56:08
● 2017-12-20 07:58:54
○ 2026-04-19 08:53:02
○ 2026-05-15 21:08:30

○MXeforward3.registrar-servers.com2016-01-27 → 2017-12-20 · 4 obs

● 2016-01-27 10:56:08
● 2017-12-20 07:58:54
○ 2026-04-19 08:53:02
○ 2026-05-15 21:08:30

○MXeforward4.registrar-servers.com2016-01-27 → 2017-12-20 · 4 obs

● 2016-01-27 10:56:08
● 2017-12-20 07:58:54
○ 2026-04-19 08:53:02
○ 2026-05-15 21:08:30

○MXeforward5.registrar-servers.com2016-01-27 → 2017-12-20 · 4 obs

● 2016-01-27 10:56:08
● 2017-12-20 07:58:54
○ 2026-04-19 08:53:02
○ 2026-05-15 21:08:30

●MXmx1-hosting.jellyfish.systems2026-04-19 → 2026-05-15 · 3 obs

○ 2017-12-20 07:58:54
● 2026-04-19 08:53:02
● 2026-05-15 21:08:30

●MXmx2-hosting.jellyfish.systems2026-04-19 → 2026-05-15 · 3 obs

○ 2017-12-20 07:58:54
● 2026-04-19 08:53:02
● 2026-05-15 21:08:30

●MXmx3-hosting.jellyfish.systems2026-04-19 → 2026-05-15 · 3 obs

○ 2017-12-20 07:58:54
● 2026-04-19 08:53:02
● 2026-05-15 21:08:30

●A104.21.62.282026-04-19 → 2026-05-15 · 3 obs

○ 2017-12-20 07:58:54
● 2026-04-19 08:53:02
● 2026-05-15 21:08:30

○A138.68.133.1802016-12-06 → 2017-12-20 · 5 obs

○ 2016-04-19 15:28:36
● 2016-12-06 02:46:04
● 2017-12-20 07:58:54
○ 2026-04-19 08:53:02
○ 2026-05-15 21:08:30

●A172.67.219.252026-04-19 → 2026-05-15 · 3 obs

○ 2017-12-20 07:58:54
● 2026-04-19 08:53:02
● 2026-05-15 21:08:30

○A212.48.87.2102016-01-27 → 2016-04-19 · 5 obs

○ 2015-11-09 04:41:38
● 2016-01-27 10:56:08
● 2016-04-19 15:28:36
○ 2016-12-06 02:46:04
○ 2026-05-15 21:08:30

●A2606:4700:3032::ac43:db192026-04-19 → 2026-05-15 · 3 obs

○ 2017-12-20 07:58:54
● 2026-04-19 08:53:02
● 2026-05-15 21:08:30

●A2606:4700:3034::6815:3e1c2026-04-19 → 2026-05-15 · 3 obs

○ 2017-12-20 07:58:54
● 2026-04-19 08:53:02
● 2026-05-15 21:08:30

○A88.208.252.92015-07-06 → 2015-11-09 · 4 obs

● 2015-07-06 15:19:28
● 2015-11-09 04:41:38
○ 2016-01-27 10:56:08
○ 2026-05-15 21:08:30

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	j.gtld-servers.net, a.gtld-servers.net, h.gtld-servers.net, l.gtld-servers.net...	-
designforusability.com	dave.ns.cloudflare.com, lindsey.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.194.5

NS records: dave.ns.cloudflare.com, lindsey.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for designforusability.com (unsigned zone)

⏱️ Timing

Total: 231ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.62.28, 172.67.219.25`
AAAA	2	`2606:4700:3034::6815:3e1c, 2606:4700:3032::ac43:db19`
NS	2	`dave.ns.cloudflare.com, lindsey.ns.cloudflare.com`
MX	3	`mx2-hosting.jellyfish.systems (pri: 10), mx3-hosting.jellyfish.systems (pri: 20)...`
TXT	1	`v=spf1 +a +mx +ip4:162.0.232.73 include:`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`dave.ns.cloudflare.com dns.cloudflare.co`

📌 Glue Records Collected

Total: 12

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

Analysis

Hierarchy

The parent of www.designforusability.com is designforusability.com.

IP Addresses

designforusability.com resolves to four IP numbers: 2606:4700:3032::ac43:db19, 2606:4700:3034::6815:3e1c, 104.21.62.28 and 172.67.219.25.

Other host names such as islam2all.com, rlshub.com, paysdebaud.com, pizza-tower.io and bogilhost.space share IPs with designforusability.com.

Name Servers

designforusability.com is delegated to two name servers: dave.ns.cloudflare.com and lindsey.ns.cloudflare.com.

designforusability.com shares the same name server setup as linkdewacair.online, img.id, specialdewacair.online, crowny.io and christineslfok.com.

designforusability.com at least partially shares name servers with other domains, for instance correosachle.top, source-israel.co.il, homeyou.com, longmenzhiboapp.net.cn and binsweeps.com.

These name servers are commonly used together with jarred.ns.cloudflare.com, mimi.ns.cloudflare.com and dana.ns.cloudflare.com.

Host names with six IP numbers:

dave.ns.cloudflare.com points to 2606:4700:58::adf5:3b6d, 2803:f800:50::6ca2:c16d, 2a06:98c1:50::ac40:216d, 108.162.193.109, 172.64.33.109 and 173.245.59.109.

lindsey.ns.cloudflare.com points to 2606:4700:50::a29f:2605, 2803:f800:50::6ca2:c205, 2a06:98c1:50::ac40:2205, 108.162.194.5, 162.159.38.5 and 172.64.34.5.

Mail Servers

Three mail servers handle designforusability.com: mx1-hosting.jellyfish.systems, mx2-hosting.jellyfish.systems and mx3-hosting.jellyfish.systems.

designforusability.com shares at least partially some mail servers with other domains, including btness.com, wiselythemes.com, 789690498.xyz, exidelo.com and gmsmallcarbash.com.

Host names with a single IP:

mx1-hosting.jellyfish.systems points to: 162.255.118.28.

mx2-hosting.jellyfish.systems points to: 162.255.118.29.

mx3-hosting.jellyfish.systems points to: 162.255.118.13.

designforusability.com - robtex.com