`bookshelfcentral.click`

DNSSEC	⚠️ Not signed
A	2606:4700:3035::ac43:d6a4^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3036::6815:2d84^{🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.45.132^{Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.214.164^{🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`hugh.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b75^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`hugh.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c175^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`hugh.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2175^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`hugh.ns.cloudflare.com`
		A	108.162.193.117^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`hugh.ns.cloudflare.com`
		A	172.64.33.117^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`hugh.ns.cloudflare.com`
		A	173.245.59.117^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`hugh.ns.cloudflare.com`
NS	`nena.ns.cloudflare.com`
		A	2606:4700:50::a29f:26a1^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nena.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c2a1^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`nena.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:22a1^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`nena.ns.cloudflare.com`
		A	108.162.194.161^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nena.ns.cloudflare.com`
		A	162.159.38.161^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nena.ns.cloudflare.com`
		A	172.64.34.161^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nena.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.45.132, 172.67.214.164
		IPv6 hints	2606:4700:3035::ac43:d6a4, 2606:4700:3036::6815:2d84
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=200, name=cloudflare-ech.com
SOA	`hugh.ns.cloudflare.com`dns@cloudflare.com serial=2410270462

`click`

	DNSSEC	🔒 Signed (DS record present)
	NS	`ns01.trs-dns.com` ⭐
	NS	`ns.trs-dns.com`
	NS	`ns01.trs-dns.net`
	NS	`ns10.trs-dns.info`
	NS	`ns10.trs-dns.org`
	SOA	`ns.trs-dns.com`trs-ops@tucows.com serial=1785237056

⚠️ On DNS blocklist: tif

Same first word

bookshelfcentral.click

DNS History

6 records (6 active, 0 former)

●NShugh.ns.cloudflare.com2026-07-26 → 2026-07-28 · 2 obs

● 2026-07-26 20:13:16
● 2026-07-28 11:22:52

●NSnena.ns.cloudflare.com2026-07-26 → 2026-07-28 · 2 obs

● 2026-07-26 20:13:16
● 2026-07-28 11:22:52

●A104.21.45.1322026-07-26 → 2026-07-28 · 2 obs

● 2026-07-26 20:13:16
● 2026-07-28 11:22:52

●A172.67.214.1642026-07-26 → 2026-07-28 · 2 obs

● 2026-07-26 20:13:16
● 2026-07-28 11:22:52

●A2606:4700:3035::ac43:d6a42026-07-26 → 2026-07-28 · 2 obs

● 2026-07-26 20:13:16
● 2026-07-28 11:22:52

●A2606:4700:3036::6815:2d842026-07-26 → 2026-07-28 · 2 obs

● 2026-07-26 20:13:16
● 2026-07-28 11:22:52

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
click	ns10.trs-dns.info, ns10.trs-dns.org, ns01.trs-dns.com, ns01.trs-dns.net	8 records
bookshelfcentral.click	hugh.ns.cloudflare.com, nena.ns.cloudflare.com	-

✅ Authoritative Response

Server:172.64.34.161

NS records: hugh.ns.cloudflare.com, nena.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for bookshelfcentral.click (unsigned zone)

⏱️ Timing

Total: 442ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.214.164, 104.21.45.132`
AAAA	2	`2606:4700:3035::ac43:d6a4, 2606:4700:3036::6815:2d84`
NS	2	`hugh.ns.cloudflare.com, nena.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`hugh.ns.cloudflare.com dns.cloudflare.co`

📌 Glue Records Collected

Total: 8

Out-of-bailiwick: 8 (ns10.trs-dns.info, ns10.trs-dns.org, ns01.trs-dns.net...)

Analysis

IP Addresses

bookshelfcentral.click points to the four IP addresses 104.21.45.132, 172.67.214.164, 2606:4700:3035::ac43:d6a4 and 2606:4700:3036::6815:2d84.

Additional host names — bong88.giving, mail.2m.gs, preiner.net and two others — share IP numbers with bookshelfcentral.click.

Name Servers

bookshelfcentral.click has two authoritative name servers — hugh.ns.cloudflare.com and nena.ns.cloudflare.com.

bookshelfcentral.click shares its name server setup with other domains, including execskilltrail.sbs, courseexpertspro.sbs, exectrainingspark.sbs and two others.

The name servers of bookshelfcentral.click overlap at least partially with those of other domains — among them feverdog.nl, rk2.in, tarotyalgomas.com and two more.

The name servers harlan.ns.cloudflare.com, chan.ns.cloudflare.com and coco.ns.cloudflare.com are commonly seen alongside these name servers.

Host names with 6 IP numbers:

hugh.ns.cloudflare.com points to 108.162.193.117, 172.64.33.117, 173.245.59.117 and 3 other IP addresses.

nena.ns.cloudflare.com points to 108.162.194.161, 162.159.38.161, 172.64.34.161 and 3 other IP addresses.

bookshelfcentral.click - robtex.com