usability.com - dns.ninja

`usability.com`

DNSSEC	⚠️ Not signed
NS	`dns101.register.com` ⭐
		A	162.159.24.117^{Cloudflare162.159.24.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
NS	`dns102.register.com`
		A	162.159.25.158^{Cloudflare162.159.25.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
MX	`aspmx.l.google.com` ⭐
		A	2607:f8b0:4004:c1b::1a^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`wv-in-f26.1e100.net`
		A	172.253.115.27^{🇺🇸 Google172.253.115.0/24}
			PTR	`bg-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::1a^{🇮🇪 Google2a00:1450:400b::/48}
			PTR	`dj-in-f26.1e100.net`
		A	172.253.116.27^{🇺🇸 Google172.253.116.0/24}
			PTR	`dj-in-f27.1e100.net`
MX	`aspmx2.googlemail.com`⁽¹⁰⁾
		A	2800:3f0:4003:c0f::1a^{🇨🇱 Google2800:3f0:4003::/48}
		A	108.177.123.27^{🇺🇸 Google108.177.123.0/24}
			PTR	`lcscld-in-f27.1e100.net`
MX	`aspmx3.googlemail.com`⁽¹⁰⁾
		A	2a00:1450:400b:c02::1a^{🇮🇪 Google2a00:1450:400b::/48}
			PTR	`dj-in-f26.1e100.net`
		A	172.253.116.27^{🇺🇸 Google172.253.116.0/24}
			PTR	`dj-in-f27.1e100.net`
MX	`aspmx4.googlemail.com`⁽¹⁰⁾
		A	2a00:1450:4009:c0f::1a^{🇬🇧 Google2a00:1450:4009::/48}
			PTR	`yulhrs-in-f26.1e100.net`
		A	192.178.223.26^{🇺🇸 Google192.178.223.0/24}
			PTR	`yulhrs-in-f26.1e100.net`
MX	`aspmx5.googlemail.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	`MS=ms33116326`
SOA	`DNS101.REGISTER.com`root@REGISTER.com serial=126042020

`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=1783207136

Same first word

DNS History

14 records (9 active, 5 former)

●NSdns101.register.com2026-03-05 → 2026-07-04 · 3 obs

○ 2016-04-24 16:06:26
● 2026-03-05 00:51:46
● 2026-07-04 23:37:50

●NSdns102.register.com2026-03-05 → 2026-07-04 · 3 obs

○ 2016-04-24 16:06:26
● 2026-03-05 00:51:46
● 2026-07-04 23:37:50

○NSdns206.a.register.com2015-04-26 → 2016-04-24 · 4 obs

● 2015-04-26 08:22:42
● 2016-04-24 16:06:26
○ 2026-03-05 00:51:46
○ 2026-07-04 23:37:50

○NSdns215.c.register.com2015-04-26 → 2016-04-24 · 4 obs

● 2015-04-26 08:22:42
● 2016-04-24 16:06:26
○ 2026-03-05 00:51:46
○ 2026-07-04 23:37:50

○NSdns223.b.register.com2015-04-26 → 2016-04-24 · 4 obs

● 2015-04-26 08:22:42
● 2016-04-24 16:06:26
○ 2026-03-05 00:51:46
○ 2026-07-04 23:37:50

○NSdns249.d.register.com2015-04-26 → 2016-04-24 · 4 obs

● 2015-04-26 08:22:42
● 2016-04-24 16:06:26
○ 2026-03-05 00:51:46
○ 2026-07-04 23:37:50

●MXalt1.aspmx.l.google.com2015-04-26 → 2026-07-04 · 2 obs

● 2015-04-26 08:22:42
● 2026-07-04 23:37:50

●MXalt2.aspmx.l.google.com2015-04-26 → 2026-07-04 · 2 obs

● 2015-04-26 08:22:42
● 2026-07-04 23:37:50

●MXaspmx.l.google.com2015-04-26 → 2026-07-04 · 2 obs

● 2015-04-26 08:22:42
● 2026-07-04 23:37:50

●MXaspmx2.googlemail.com2015-04-26 → 2026-07-04 · 2 obs

● 2015-04-26 08:22:42
● 2026-07-04 23:37:50

●MXaspmx3.googlemail.com2015-04-26 → 2026-07-04 · 2 obs

● 2015-04-26 08:22:42
● 2026-07-04 23:37:50

●MXaspmx4.googlemail.com2015-04-26 → 2026-07-04 · 2 obs

● 2015-04-26 08:22:42
● 2026-07-04 23:37:50

●MXaspmx5.googlemail.com2015-04-26 → 2026-07-04 · 2 obs

● 2015-04-26 08:22:42
● 2026-07-04 23:37:50

○A173.236.7.852015-04-26 → 2016-04-24 · 4 obs

● 2015-04-26 08:22:42
● 2016-04-24 16:06:26
○ 2026-03-05 00:51:46
○ 2026-07-04 23:37:50

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
usability.com	dns101.register.com, dns102.register.com	2 records

✅ Authoritative Response

Server:162.159.24.117

NS records: dns101.register.com, dns102.register.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for usability.com (unsigned zone)

⏱️ Timing

Total: 346ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`dns101.register.com, dns102.register.com`
MX	7	`aspmx3.googlemail.com (pri: 10), aspmx.l.google.com (pri: 0)...`
TXT	1	`MS=ms33116326`
SOA	1	`DNS101.REGISTER.com root.REGISTER.com`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (dns101.register.com, dns102.register.com)

Analysis

Name Servers

usability.com is delegated to two name servers: dns101.register.com and dns102.register.com.

The name server configuration of usability.com is shared with other domains, for instance kurst.com, billymaynard.com, qll.co and two others.

usability.com shares at least some of its name servers with other domains, such as olyclub.net.

Each of dns101.register.com and dns102.register.com has one IP address: dns101.register.com uses 162.159.24.117 and dns102.register.com uses 162.159.25.158.

Mail Servers

usability.com uses 7 mail servers for delivery: aspmx2.googlemail.com, aspmx3.googlemail.com, aspmx4.googlemail.com and 4 other.

At least some of the mail servers used by usability.com are shared with other domains: andymaus.com, copblock.org, velozoart.com and two others among them.

These mail servers are often deployed together with aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com and 3 other mail servers.

Host names pointing to two IP addresses:

aspmx2.googlemail.com points to 108.177.123.27 and 2800:3f0:4003:c0f::1a.

aspmx3.googlemail.com points to 172.253.116.27 and 2a00:1450:400b:c02::1a.

aspmx4.googlemail.com points to 192.178.223.26 and 2a00:1450:4009:c0f::1a.

aspmx5.googlemail.com points to 172.253.157.26 and 2a00:1450:400c:c23::1b.

aspmx.l.google.com points to 172.253.115.27 and 2607:f8b0:4004:c1b::1a.

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

alt2.aspmx.l.google.com points to 172.253.116.27 and 2a00:1450:400b:c02::1a.

aspmx2.googlemail.com and alt1.aspmx.l.google.com are host names that each point to 2800:3f0:4003:c0f::1a IP addresses.

aspmx3.googlemail.com and alt2.aspmx.l.google.com are host names that each point to 2a00:1450:400b:c02::1a IP addresses.

aspmx3.googlemail.com and alt2.aspmx.l.google.com are host names that each point to 172.253.116.27 IP addresses.