`firstbooksale.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3033::6815:4f58^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3035::ac43:a96c^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.79.88^{Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.169.108^{🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`nelly.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3ad1^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nelly.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0d1^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`nelly.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20d1^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`nelly.ns.cloudflare.com`
		A	108.162.192.209^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nelly.ns.cloudflare.com`
		A	172.64.32.209^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nelly.ns.cloudflare.com`
		A	173.245.58.209^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nelly.ns.cloudflare.com`
NS	`rajeev.ns.cloudflare.com`
		A	2606:4700:58::adf5:3be0^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`rajeev.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c1e0^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`rajeev.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:21e0^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`rajeev.ns.cloudflare.com`
		A	108.162.193.224^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`rajeev.ns.cloudflare.com`
		A	172.64.33.224^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`rajeev.ns.cloudflare.com`
		A	173.245.59.224^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`rajeev.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4	104.21.79.88, 172.67.169.108
		IPv6	2606:4700:3033::6815:4f58, 2606:4700:3035::ac43:a96c
SOA	`nelly.ns.cloudflare.com`dns@cloudflare.com serial=2398559697

`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=1771291435

Same first word

firstbooksale.com

DNS History

10 records (6 active, 4 former)

●NSnelly.ns.cloudflare.com2026-03-01 → 2026-03-23 · 2 obs

● 2026-03-01 13:32:02
● 2026-03-23 06:31:10

●NSrajeev.ns.cloudflare.com2026-03-01 → 2026-03-23 · 2 obs

● 2026-03-01 13:32:02
● 2026-03-23 06:31:10

●A104.21.79.882026-03-01 → 2026-03-23 · 5 obs

● 2026-03-01 13:32:02
● 2026-03-16 04:18:22
○ 2026-03-20 10:53:24
● 2026-03-23 06:31:08
● 2026-03-23 06:31:10

●A172.67.169.1082026-03-01 → 2026-03-23 · 5 obs

● 2026-03-01 13:32:02
● 2026-03-16 04:18:22
○ 2026-03-20 10:53:24
● 2026-03-23 06:31:08
● 2026-03-23 06:31:10

○A188.114.96.02026-03-20 → 2026-03-20 · 4 obs

○ 2026-03-16 04:18:22
● 2026-03-20 10:53:24
○ 2026-03-23 06:31:08
○ 2026-03-23 06:31:10

○A188.114.97.02026-03-20 → 2026-03-20 · 4 obs

○ 2026-03-16 04:18:22
● 2026-03-20 10:53:24
○ 2026-03-23 06:31:08
○ 2026-03-23 06:31:10

●A2606:4700:3033::6815:4f582026-03-01 → 2026-03-23 · 5 obs

● 2026-03-01 13:32:02
● 2026-03-16 04:18:22
○ 2026-03-20 10:53:24
● 2026-03-23 06:31:08
● 2026-03-23 06:31:10

●A2606:4700:3035::ac43:a96c2026-03-01 → 2026-03-23 · 5 obs

● 2026-03-01 13:32:02
● 2026-03-16 04:18:22
○ 2026-03-20 10:53:24
● 2026-03-23 06:31:08
● 2026-03-23 06:31:10

○A2a06:98c1:3120::2026-03-20 → 2026-03-20 · 4 obs

○ 2026-03-16 04:18:22
● 2026-03-20 10:53:24
○ 2026-03-23 06:31:08
○ 2026-03-23 06:31:10

○A2a06:98c1:3121::2026-03-20 → 2026-03-20 · 4 obs

○ 2026-03-16 04:18:22
● 2026-03-20 10:53:24
○ 2026-03-23 06:31:08
○ 2026-03-23 06:31:10

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...	-
firstbooksale.com	rajeev.ns.cloudflare.com, nelly.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:173.245.59.224

NS records: rajeev.ns.cloudflare.com, nelly.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for firstbooksale.com (unsigned zone)

⏱️ Timing

Total: 249ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.79.88, 172.67.169.108`
AAAA	2	`2606:4700:3033::6815:4f58, 2606:4700:3035::ac43:a96c`
NS	2	`nelly.ns.cloudflare.com, rajeev.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`nelly.ns.cloudflare.com dns.cloudflare.c`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

firstbooksale.com resolves to four IP numbers: 2606:4700:3033::6815:4f58, 2606:4700:3035::ac43:a96c, 104.21.79.88 and 172.67.169.108.

Other host names such as oanow.cn, www.kediluo.com, yurspecgrupp.ru, www.adu.edu.az and applebroker.io share IPs with firstbooksale.com.

Name Servers

firstbooksale.com is delegated to two name servers: nelly.ns.cloudflare.com and rajeev.ns.cloudflare.com.

firstbooksale.com shares the same name server setup as motads.com, blingitonjewels.com, sciowa.org, automotivepartsberserk.com and electrodomesticosonline.com.

firstbooksale.com at least partially shares name servers with other domains, for instance xenos-isle.com, maxwinberjayatogel.xyz, biangtoto.com, rembobarat.com and shiokelinci4d-menangwd.xyz.

these name servers are commonly used with alberto.ns.cloudflare.com, armfazh.ns.cloudflare.com, sreeni.ns.cloudflare.com and chip.ns.cloudflare.com.

Host names with six IP numbers:

nelly.ns.cloudflare.com points to 2606:4700:50::adf5:3ad1, 2803:f800:50::6ca2:c0d1, 2a06:98c1:50::ac40:20d1, 108.162.192.209, 172.64.32.209 and 173.245.58.209.

rajeev.ns.cloudflare.com points to 2606:4700:58::adf5:3be0, 2803:f800:50::6ca2:c1e0, 2a06:98c1:50::ac40:21e0, 108.162.193.224, 172.64.33.224 and 173.245.59.224.

firstbooksale.com - robtex.com