`readcwbooks.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3031::ac43:ae83^{🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::6815:2813^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.40.19^{Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.174.131^{🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`anton.ns.cloudflare.com` ⭐
		A	2606:4700:58::a29f:2caf^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`anton.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c3af^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`anton.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:23af^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`anton.ns.cloudflare.com`
		A	108.162.195.175^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`anton.ns.cloudflare.com`
		A	162.159.44.175^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`anton.ns.cloudflare.com`
		A	172.64.35.175^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`anton.ns.cloudflare.com`
NS	`harleigh.ns.cloudflare.com`
		A	2606:4700:50::a29f:263a^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`harleigh.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c23a^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`harleigh.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:223a^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`harleigh.ns.cloudflare.com`
		A	108.162.194.58^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`harleigh.ns.cloudflare.com`
		A	162.159.38.58^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`harleigh.ns.cloudflare.com`
		A	172.64.34.58^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`harleigh.ns.cloudflare.com`
MX	`mx.stackmail.com` ⭐
		A	185.151.28.67^{🇬🇧 TWENTYI185.151.28.0/24}
			PTR	`mx.stackmail.com`
TXT	`v=spf1 include:spf.stackmail.com a mx -all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4	104.21.40.19, 172.67.174.131
		IPv6	2606:4700:3031::ac43:ae83, 2606:4700:3037::6815:2813
SOA	`anton.ns.cloudflare.com`dns@cloudflare.com serial=2398303068

`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=1774788832

Same first word

readcwbooks.com

DNS History

13 records (7 active, 6 former)

●NSanton.ns.cloudflare.com2026-03-16 → 2026-03-29 · 3 obs

○ 2017-09-03 13:27:12
● 2026-03-16 09:10:48
● 2026-03-29 13:00:30

●NSharleigh.ns.cloudflare.com2026-03-16 → 2026-03-29 · 3 obs

○ 2017-09-03 13:27:12
● 2026-03-16 09:10:48
● 2026-03-29 13:00:30

○NSns0.dnsmadeeasy.com2015-07-26 → 2017-09-03 · 4 obs

● 2015-07-26 15:22:14
● 2017-09-03 13:27:12
○ 2026-03-16 09:10:48
○ 2026-03-29 13:00:30

○NSns1.dnsmadeeasy.com2015-07-26 → 2017-09-03 · 4 obs

● 2015-07-26 15:22:14
● 2017-09-03 13:27:12
○ 2026-03-16 09:10:48
○ 2026-03-29 13:00:30

○NSns2.dnsmadeeasy.com2015-07-26 → 2017-09-03 · 4 obs

● 2015-07-26 15:22:14
● 2017-09-03 13:27:12
○ 2026-03-16 09:10:48
○ 2026-03-29 13:00:30

○NSns3.dnsmadeeasy.com2015-07-26 → 2017-09-03 · 4 obs

● 2015-07-26 15:22:14
● 2017-09-03 13:27:12
○ 2026-03-16 09:10:48
○ 2026-03-29 13:00:30

○NSns4.dnsmadeeasy.com2015-07-26 → 2017-09-03 · 4 obs

● 2015-07-26 15:22:14
● 2017-09-03 13:27:12
○ 2026-03-16 09:10:48
○ 2026-03-29 13:00:30

●MXmx.stackmail.com2026-03-16 → 2026-03-29 · 2 obs

● 2026-03-16 09:10:48
● 2026-03-29 13:00:30

●A104.21.40.192026-03-16 → 2026-03-29 · 3 obs

○ 2017-09-03 13:27:12
● 2026-03-16 09:10:48
● 2026-03-29 13:00:30

●A172.67.174.1312026-03-16 → 2026-03-29 · 3 obs

○ 2017-09-03 13:27:12
● 2026-03-16 09:10:48
● 2026-03-29 13:00:30

●A2606:4700:3031::ac43:ae832026-03-16 → 2026-03-29 · 3 obs

○ 2017-09-03 13:27:12
● 2026-03-16 09:10:48
● 2026-03-29 13:00:30

●A2606:4700:3037::6815:28132026-03-16 → 2026-03-29 · 3 obs

○ 2017-09-03 13:27:12
● 2026-03-16 09:10:48
● 2026-03-29 13:00:30

○A66.117.217.102015-07-26 → 2017-09-03 · 4 obs

● 2015-07-26 15:22:14
● 2017-09-03 13:27:12
○ 2026-03-16 09:10:48
○ 2026-03-29 13:00:30

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
readcwbooks.com	harleigh.ns.cloudflare.com, anton.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.194.58

NS records: harleigh.ns.cloudflare.com, anton.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for readcwbooks.com (unsigned zone)

⏱️ Timing

Total: 104ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.40.19, 172.67.174.131`
AAAA	2	`2606:4700:3037::6815:2813, 2606:4700:3031::ac43:ae83`
NS	2	`anton.ns.cloudflare.com, harleigh.ns.cloudflare.com`
MX	1	`mx.stackmail.com (pri: 10)`
TXT	1	`v=spf1 include:spf.stackmail.com a mx -a`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`anton.ns.cloudflare.com dns.cloudflare.c`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

readcwbooks.com points to four IP numbers: 2606:4700:3031::ac43:ae83, 2606:4700:3037::6815:2813, 104.21.40.19 and 172.67.174.131.

Other host names, for instance bgsinfinity.com, gp5-sochi.ru, vxy.com.hk, georgiagasprices.com and core24services.com share IP numbers with readcwbooks.com.

Name Servers

readcwbooks.com's delegation is to two name servers anton.ns.cloudflare.com and harleigh.ns.cloudflare.com.

readcwbooks.com shares the same name server configuration as other domains, such as elcellerdeltossal.com, carmanyc.com, razrrods.com, trashthedressonline.com and completeyachtservice.com.

readcwbooks.com at least partially shares its name servers with other domains, for instance tsn.uk.com, syzysyy.com, 78wing-2025.com, indexx.top and longan.id.

These name servers are commonly used with armando.ns.cloudflare.com, frida.ns.cloudflare.com and peyton.ns.cloudflare.com.

Host names with six IP numbers:

anton.ns.cloudflare.com points to: 2606:4700:58::a29f:2caf, 2803:f800:50::6ca2:c3af, 2a06:98c1:50::ac40:23af, 108.162.195.175, 162.159.44.175 and 172.64.35.175.

harleigh.ns.cloudflare.com points to: 2606:4700:50::a29f:263a, 2803:f800:50::6ca2:c23a, 2a06:98c1:50::ac40:223a, 108.162.194.58, 162.159.38.58 and 172.64.34.58.

Mail Servers

readcwbooks.com is served by a single mail server, mx.stackmail.com.

readcwbooks.com uses the same mail server setup as other domains such as amezzo.com, brooksoffice.com, cadenzaindustry.com, tipsofbusiness.com and amaroney.com.

readcwbooks.com shares some mail servers with other domains at least partially, for example sockcity.com.

mx.stackmail.com points to IP number 185.151.28.67.

readcwbooks.com - robtex.com

readcwbooks.com

com

Same first word

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

IP Addresses

Name Servers

Mail Servers

`readcwbooks.com`

`com`