🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`codeessentialsbooks.com`

DNSSEC	⚠️ Not signed
A	64.29.17.1^{🇺🇸 Amazon64.29.17.0/24 EC2 Prefix}
A	216.198.79.1^{🇺🇸 Amazon216.198.79.0/24 EC2 Prefix}
NS	`ns1.vercel-dns.com` ⭐
		A	2620:4d:4000:6259:7:13:0:1^{🇺🇸 NSONE2620:4d:4000::/48 PNAP-ACS nsone-1}
			PTR	`dns1.p13.nsone.net`
		A	198.51.44.13^{🇺🇸 NSONE198.51.44.0/24}
			PTR	`dns1.p13.nsone.net`
NS	`ns2.vercel-dns.com`
		A	2a00:edc0:6259:7:13::2^{🇺🇸 NSONE2a00:edc0:6259::/48 NS1-2}
			PTR	`dns2.p13.nsone.net`
		A	198.51.45.13^{🇺🇸 NSONE198.51.45.0/24}
			PTR	`dns2.p13.nsone.net`
MX	`mx1.improvmx.com` ⭐
		A	2a05:d012:412:e201:88aa:e7b9:7a43:12d7^{🇫🇷 Amazon2a05:d012:400::/38 AMAZON AWS}
		A	2a05:d012:412:e202:f36:2c1f:1a49:d38a^{🇫🇷 Amazon2a05:d012:400::/38 AMAZON AWS}
		A	2a05:d012:412:e203:373a:f51a:4a85:1d25^{🇫🇷 Amazon2a05:d012:400::/38 AMAZON AWS}
		A	13.37.195.136^{🇫🇷 Amazon13.36.0.0/14 EC2 CDG Prefix}
			PTR	`ec2-13-37-195-136.eu-west-3.compute.amazonaws.com`
		A	15.236.236.160^{🇫🇷 Amazon15.236.0.0/15 EC2 CDG prefix}
			PTR	`ec2-15-236-236-160.eu-west-3.compute.amazonaws.com`
		A	35.181.18.45^{🇫🇷 Amazon35.181.0.0/16 EC2 CDG prefix}
			PTR	`ec2-35-181-18-45.eu-west-3.compute.amazonaws.com`
MX	`mx2.improvmx.com`⁽²⁰⁾
		A	2a05:d012:412:e201:1f6e:f6e4:8fd7:4678^{🇫🇷 Amazon2a05:d012:400::/38 AMAZON AWS}
		A	2a05:d012:412:e202:e81e:cc44:3b53:8a3d^{🇫🇷 Amazon2a05:d012:400::/38 AMAZON AWS}
		A	2a05:d012:412:e203:7e33:3d9c:28d7:ee20^{🇫🇷 Amazon2a05:d012:400::/38 AMAZON AWS}
		A	13.36.107.63^{🇫🇷 Amazon13.36.0.0/14 EC2 CDG Prefix}
			PTR	`ec2-13-36-107-63.eu-west-3.compute.amazonaws.com`
		A	13.36.222.39^{🇫🇷 Amazon13.36.0.0/14 EC2 CDG Prefix}
			PTR	`ec2-13-36-222-39.eu-west-3.compute.amazonaws.com`
		A	15.236.61.92^{🇫🇷 Amazon15.236.0.0/15 EC2 CDG prefix}
			PTR	`ec2-15-236-61-92.eu-west-3.compute.amazonaws.com`
TXT	`mailerlite-domain-verification=71a3c1e0eaec8aa19f28bb62eda79c4fd5965ad3`
TXT	`v=spf1 a mx include:_spf.mlsend.com include:spf.improvmx.com ~all`
SOA	`ns1.vercel-dns.com`hostmaster@nsone.net serial=1784011398

`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=1794133851

Same first word

codeessentialsbooks.com

Previous names

Next names

DNS History

8 records (6 active, 2 former)

●NSns1.vercel-dns.com2026-09-14 → 2026-11-08 · 2 obs

● 2026-09-14 06:40:22
● 2026-11-08 10:58:52

●NSns2.vercel-dns.com2026-09-14 → 2026-11-08 · 2 obs

● 2026-09-14 06:40:22
● 2026-11-08 10:58:52

●MXmx1.improvmx.com2026-09-14 → 2026-11-08 · 2 obs

● 2026-09-14 06:40:22
● 2026-11-08 10:58:52

●MXmx2.improvmx.com2026-09-14 → 2026-11-08 · 2 obs

● 2026-09-14 06:40:22
● 2026-11-08 10:58:52

●A216.198.79.12026-09-14 → 2026-11-08 · 8 obs

● 2026-09-14 06:40:22
○ 2026-09-15 09:02:26
● 2026-09-19 22:38:50
○ 2026-10-02 04:43:36
● 2026-10-05 09:59:00
○ 2026-10-08 16:17:20
● 2026-10-30 00:07:30
● 2026-11-08 10:58:52

○A216.198.79.652026-09-15 → 2026-11-08 · 10 obs

○ 2026-09-14 06:40:22
● 2026-09-15 09:02:26
○ 2026-09-18 18:29:00
● 2026-09-19 22:38:50
○ 2026-10-05 09:59:00
● 2026-10-08 16:17:20
○ 2026-10-30 00:07:30
● 2026-11-08 06:00:56
○ 2026-11-08 10:12:16
○ 2026-11-08 10:58:52

●A64.29.17.12026-09-14 → 2026-11-08 · 8 obs

● 2026-09-14 06:40:22
○ 2026-09-19 22:38:50
● 2026-10-02 04:43:36
○ 2026-10-05 09:59:00
● 2026-10-08 16:17:20
○ 2026-11-05 03:43:26
● 2026-11-08 10:12:16
● 2026-11-08 10:58:52

○A64.29.17.652026-09-18 → 2026-11-05 · 8 obs

○ 2026-09-15 09:02:26
● 2026-09-18 18:29:00
○ 2026-09-19 22:38:50
● 2026-10-05 09:59:00
○ 2026-10-08 16:17:20
● 2026-11-05 03:43:26
○ 2026-11-08 06:00:56
○ 2026-11-08 10:58:52

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	k.gtld-servers.net, l.gtld-servers.net, m.gtld-servers.net, a.gtld-servers.net...	-
codeessentialsbooks.com	ns1.vercel-dns.com, ns2.vercel-dns.com	4 records

✅ Authoritative Response

Server:198.51.44.13

NS records: ns1.vercel-dns.com, ns2.vercel-dns.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for codeessentialsbooks.com (unsigned zone)

⏱️ Timing

Total: 257ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`216.198.79.1, 216.198.79.65`
NS	2	`ns1.vercel-dns.com, ns2.vercel-dns.com`
MX	2	`mx1.improvmx.com (pri: 10), mx2.improvmx.com (pri: 20)`
TXT	2	`mailerlite-domain-verification=71a3c1e0e, v=spf1 a mx include:_spf.mlsend.com incl`
SOA	1	`ns1.vercel-dns.com hostmaster.nsone.net`

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (ns1.vercel-dns.com, ns1.vercel-dns.com, ns2.vercel-dns.com...)

Analysis

IP Addresses

codeessentialsbooks.com has two IP addresses: 64.29.17.1 and 216.198.79.1

Additional host names — craftedcandidate.ai, sanu-singh.is-a.dev, pedroscales.com and two others — share IP numbers with codeessentialsbooks.com.

Name Servers

codeessentialsbooks.com has two authoritative name servers — ns1.vercel-dns.com and ns2.vercel-dns.com.

codeessentialsbooks.com shares its name server setup with other domains, including dxlabs.cn, gogogo.co.mz, kura-eyelash.com and two others.

The name servers for codeessentialsbooks.com overlap at least in part with those of other domains, including sakarisson.com and afrix.top.

Both ns1.vercel-dns.com and ns2.vercel-dns.com have two IP addresses each. ns1.vercel-dns.com resolves to 198.51.44.13 and 2620:4d:4000:6259:7:13:0:1; ns2.vercel-dns.com resolves to 198.51.45.13 and 2a00:edc0:6259:7:13::2.

Mail Servers

codeessentialsbooks.com has two mail servers: mx1.improvmx.com and mx2.improvmx.com.

codeessentialsbooks.com shares the same mail server setup as other domains, including newsjacking.biz, logicmoo.org, coming.in.net and two others.

codeessentialsbooks.com shares mail servers — at least in part — with other domains, including ruckpost.com, coupez.video, rendeal.co and two others.

Host names with 6 IP numbers:

mx1.improvmx.com points to 13.37.195.136, 15.236.236.160, 35.181.18.45 and 3 other IP addresses.

mx2.improvmx.com points to 13.36.107.63, 13.36.222.39, 15.236.61.92 and 3 other IP addresses.

codeessentialsbooks.com - robtex.com