`speechunderstanding.com`

DNSSEC	⚠️ Not signed
NS	`ns-609.awsdns-12.net` ⭐
		A	2600:9000:5302:6100::1^{🇺🇸 Amazon2600:9000:5302::/48 - CloudFront}
			PTR	`ns-609.awsdns-12.net`
		A	205.251.194.97^{🇺🇸 Amazon205.251.194.0/24 prefix}
			PTR	`ns-609.awsdns-12.net`
NS	`ns-1194.awsdns-21.org`
		A	2600:9000:5304:aa00::1^{🇺🇸 Amazon2600:9000:5304::/48 - CloudFront}
			PTR	`ns-1194.awsdns-21.org`
		A	205.251.196.170^{🇺🇸 Amazon205.251.196.0/24 prefix}
			PTR	`ns-1194.awsdns-21.org`
NS	`ns-1590.awsdns-06.co.uk`
		A	2600:9000:5306:3600::1^{🇺🇸 Amazon2600:9000:5306::/48 - CloudFront}
			PTR	`ns-1590.awsdns-06.co.uk`
		A	205.251.198.54^{🇺🇸 Amazon205.251.198.0/24 prefix}
			PTR	`ns-1590.awsdns-06.co.uk`
NS	`ns-342.awsdns-42.com`
		A	2600:9000:5301:5600::1^{🇺🇸 Amazon2600:9000:5301::/48 - CloudFront}
			PTR	`ns-342.awsdns-42.com`
		A	205.251.193.86^{🇺🇸 Amazon205.251.193.0/24 prefix}
			PTR	`ns-342.awsdns-42.com`
MX	`leslie.speechunderstanding.com` ⭐
		A	192.28.32.143^{🇺🇸 AS7792192.28.32.0/19}
TXT	`v=spf1 -all`
SOA	`ns-609.awsdns-12.net`awsdns-hostmaster@amazon.com serial=1

`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=1785799062

Subdomains

leslie.speechunderstanding.com

Same first word

speechunderstanding.com

DNS History

15 records (5 active, 10 former)

○NSat1gtm.mmodal.com2015-06-29 → 2017-07-06 · 5 obs

○ 2008-03-15 06:30:32
● 2015-06-29 13:13:00
● 2017-07-06 17:41:46
○ 2026-04-29 08:41:34
○ 2026-08-03 23:32:02

○NSauthns1.qwest.net2015-06-29 → 2017-07-06 · 5 obs

○ 2008-03-15 06:30:32
● 2015-06-29 13:13:00
● 2017-07-06 17:41:46
○ 2026-04-29 08:41:34
○ 2026-08-03 23:32:02

○NSauthns2.qwest.net2015-06-29 → 2017-07-06 · 5 obs

○ 2008-03-15 06:30:32
● 2015-06-29 13:13:00
● 2017-07-06 17:41:46
○ 2026-04-29 08:41:34
○ 2026-08-03 23:32:02

●NSns-1194.awsdns-21.org2026-04-29 → 2026-08-03 · 3 obs

○ 2017-07-06 17:41:46
● 2026-04-29 08:41:34
● 2026-08-03 23:32:02

●NSns-1590.awsdns-06.co.uk2026-04-29 → 2026-08-03 · 3 obs

○ 2017-07-06 17:41:46
● 2026-04-29 08:41:34
● 2026-08-03 23:32:02

●NSns-342.awsdns-42.com2026-04-29 → 2026-08-03 · 3 obs

○ 2017-07-06 17:41:46
● 2026-04-29 08:41:34
● 2026-08-03 23:32:02

●NSns-609.awsdns-12.net2026-04-29 → 2026-08-03 · 3 obs

○ 2017-07-06 17:41:46
● 2026-04-29 08:41:34
● 2026-08-03 23:32:02

○NSns13.domaincontrol.com2008-03-15 → 2008-03-15 · 3 obs

● 2008-03-15 06:30:32
○ 2015-06-29 13:13:00
○ 2026-08-03 23:32:02

○NSns14.domaincontrol.com2008-03-15 → 2008-03-15 · 3 obs

● 2008-03-15 06:30:32
○ 2015-06-29 13:13:00
○ 2026-08-03 23:32:02

○NSph1gtm.mmodal.com2015-06-29 → 2017-07-06 · 5 obs

○ 2008-03-15 06:30:32
● 2015-06-29 13:13:00
● 2017-07-06 17:41:46
○ 2026-04-29 08:41:34
○ 2026-08-03 23:32:02

●MXleslie.speechunderstanding.com2026-04-29 → 2026-08-03 · 3 obs

○ 2015-06-29 13:13:00
● 2026-04-29 08:41:34
● 2026-08-03 23:32:02

○MXmailstore1.secureserver.net2008-03-15 → 2008-03-15 · 3 obs

● 2008-03-15 06:30:32
○ 2015-06-29 13:13:00
○ 2026-08-03 23:32:02

○MXsmtp.secureserver.net2008-03-15 → 2008-03-15 · 3 obs

● 2008-03-15 06:30:32
○ 2015-06-29 13:13:00
○ 2026-08-03 23:32:02

○A217.19.248.1322016-04-10 → 2017-07-06 · 5 obs

○ 2015-06-29 13:13:00
● 2016-04-10 03:02:24
● 2017-07-06 17:41:46
○ 2026-04-29 08:41:34
○ 2026-08-03 23:32:02

○A68.178.232.1002008-03-15 → 2008-03-15 · 3 obs

● 2008-03-15 06:30:32
○ 2015-06-29 13:13:00
○ 2026-08-03 23:32:02

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
speechunderstanding.com	ns-609.awsdns-12.net, ns-342.awsdns-42.com, ns-1590.awsdns-06.co.uk, ns-1194.awsdns-21.org	2 records

✅ Authoritative Response

Server:205.251.198.54

NS records: ns-609.awsdns-12.net, ns-342.awsdns-42.com, ns-1590.awsdns-06.co.uk, ns-1194.awsdns-21.org

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for speechunderstanding.com (unsigned zone)

⏱️ Timing

Total: 398ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	4	`ns-1194.awsdns-21.org, ns-1590.awsdns-06.co.uk...`
MX	1	`leslie.speechunderstanding.com (pri: 10)`
TXT	1	`v=spf1 -all`
SOA	1	`ns-609.awsdns-12.net awsdns-hostmaster.a`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns-342.awsdns-42.com, ns-342.awsdns-42.com)

Analysis

Hierarchy

speechunderstanding.com is the parent zone for leslie.speechunderstanding.com.

Name Servers

The domain speechunderstanding.com is delegated to these four name servers: ns-342.awsdns-42.com, ns-609.awsdns-12.net, ns-1194.awsdns-21.org and ns-1590.awsdns-06.co.uk.

speechunderstanding.com partially shares its NS delegation with several other domains, including kilcolmannationalschool.com, bearapps.org, codizsoft.com and two others.

ns-342.awsdns-42.com, ns-609.awsdns-12.net, ns-1194.awsdns-21.org and ns-1590.awsdns-06.co.uk each carry two IP addresses. ns-342.awsdns-42.com has 205.251.193.86 and 2600:9000:5301:5600::1; ns-609.awsdns-12.net has 205.251.194.97 and 2600:9000:5302:6100::1; ns-1194.awsdns-21.org has 205.251.196.170 and 2600:9000:5304:aa00::1; ns-1590.awsdns-06.co.uk has 205.251.198.54 and 2600:9000:5306:3600::1.

Mail Servers

speechunderstanding.com routes its mail through a single mail server, leslie.speechunderstanding.com.

leslie.speechunderstanding.com points to one IP number — 192.28.32.143.

speechunderstanding.com - robtex.com