`semanticsfirst.com`

DNSSEC	⚠️ Not signed
NS	`ns-1317.awsdns-36.org` ⚠️ Not in zone NS records
		A	2600:9000:5305:2500::1^{🇺🇸 Amazon2600:9000:5305::/48 - CloudFront}
			PTR	`ns-1317.awsdns-36.org`
		A	205.251.197.37^{🇺🇸 Amazon205.251.197.0/24 prefix}
			PTR	`ns-1317.awsdns-36.org`
NS	`ns-2003.awsdns-58.co.uk` ⚠️ Not in zone NS records
		A	2600:9000:5307:d300::1^{🇺🇸 Amazon2600:9000:5307::/48 - CloudFront}
			PTR	`ns-2003.awsdns-58.co.uk`
		A	205.251.199.211^{🇺🇸 Amazon205.251.199.0/24 prefix}
			PTR	`ns-2003.awsdns-58.co.uk`
NS	`ns-318.awsdns-39.com` ⚠️ Not in zone NS records
		A	2600:9000:5301:3e00::1^{🇺🇸 Amazon2600:9000:5301::/48 - CloudFront}
		A	205.251.193.62^{🇺🇸 Amazon205.251.193.0/24 prefix}
			PTR	`ns-318.awsdns-39.com`
NS	`ns-921.awsdns-51.net` ⚠️ Not in zone NS records
		A	2600:9000:5303:9900::1^{🇺🇸 Amazon2600:9000:5303::/48 - CloudFront}
			PTR	`ns-921.awsdns-51.net`
		A	205.251.195.153^{🇺🇸 Amazon205.251.195.0/24 prefix}
			PTR	`ns-921.awsdns-51.net`

`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=1785630232

Same first word

semanticsfirst.com

DNS History

9 records (4 active, 5 former)

●NSns-1317.awsdns-36.org2026-06-04 → 2026-08-02 · 3 obs

○ 2015-10-24 03:06:34
● 2026-06-04 14:19:56
● 2026-08-02 00:24:24

●NSns-2003.awsdns-58.co.uk2026-06-04 → 2026-08-02 · 3 obs

○ 2015-10-24 03:06:34
● 2026-06-04 14:19:56
● 2026-08-02 00:24:24

●NSns-318.awsdns-39.com2026-06-04 → 2026-08-02 · 3 obs

○ 2015-10-24 03:06:34
● 2026-06-04 14:19:56
● 2026-08-02 00:24:24

●NSns-921.awsdns-51.net2026-06-04 → 2026-08-02 · 3 obs

○ 2015-10-24 03:06:34
● 2026-06-04 14:19:56
● 2026-08-02 00:24:24

○NSns55.domaincontrol.com2008-03-08 → 2008-03-08 · 3 obs

● 2008-03-08 13:23:04
○ 2015-10-24 03:06:34
○ 2026-08-02 00:24:24

○NSns56.domaincontrol.com2008-03-08 → 2008-03-08 · 3 obs

● 2008-03-08 13:23:04
○ 2015-10-24 03:06:34
○ 2026-08-02 00:24:24

○MXmailstore1.secureserver.net2008-03-08 → 2008-03-08 · 3 obs

● 2008-03-08 13:23:04
○ 2015-10-24 03:06:34
○ 2026-08-02 00:24:24

○MXsmtp.secureserver.net2008-03-08 → 2008-03-08 · 3 obs

● 2008-03-08 13:23:04
○ 2015-10-24 03:06:34
○ 2026-08-02 00:24:24

○A198.64.157.382008-03-08 → 2008-03-08 · 3 obs

● 2008-03-08 13:23:04
○ 2015-10-24 03:06:34
○ 2026-08-02 00:24:24

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
semanticsfirst.com	ns-318.awsdns-39.com, ns-921.awsdns-51.net, ns-1317.awsdns-36.org, ns-2003.awsdns-58.co.uk	2 records

✅ Authoritative Response

Server:205.251.193.62

NS records: ns-318.awsdns-39.com, ns-921.awsdns-51.net, ns-1317.awsdns-36.org, ns-2003.awsdns-58.co.uk

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for semanticsfirst.com (unsigned zone)

⏱️ Timing

Total: 327ms | Queries: -

📄 Records

Type	Count	Sample Data

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns-318.awsdns-39.com, ns-318.awsdns-39.com)

Analysis

Name Servers

The NS records for semanticsfirst.com point to four name servers: ns-318.awsdns-39.com, ns-921.awsdns-51.net, ns-1317.awsdns-36.org and ns-2003.awsdns-58.co.uk.

There is at least partial name server overlap between semanticsfirst.com and other domains — privategithub.link, 121.228.13.in-addr.arpa, airnz.se and two more among them.

These name servers tend to appear in combination with the name servers ns1-24-ap-southeast-1.ec2-rdns.amazonaws.com, ns2-24-ap-southeast-1.ec2-rdns.amazonaws.com, ns3-24-ap-southeast-1.ec2-rdns.amazonaws.com and ns4-24-ap-southeast-1.ec2-rdns.amazonaws.com.

All four hostnames — ns-318.awsdns-39.com, ns-921.awsdns-51.net, ns-1317.awsdns-36.org and ns-2003.awsdns-58.co.uk — resolve to two IP numbers apiece: ns-318.awsdns-39.com to 205.251.193.62 and 2600:9000:5301:3e00::1; ns-921.awsdns-51.net to 205.251.195.153 and 2600:9000:5303:9900::1; ns-1317.awsdns-36.org to 205.251.197.37 and 2600:9000:5305:2500::1; ns-2003.awsdns-58.co.uk to 205.251.199.211 and 2600:9000:5307:d300::1.

semanticsfirst.com - robtex.com