`bookshark.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3036::6815:4c97^{🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::ac43:c442^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.76.151^{Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.196.66^{🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`journey.ns.cloudflare.com` ⭐
		A	2606:4700:50::a29f:2603^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`journey.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c203^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`journey.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2203^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`journey.ns.cloudflare.com`
		A	108.162.194.3^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`journey.ns.cloudflare.com`
		A	162.159.38.3^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`journey.ns.cloudflare.com`
		A	172.64.34.3^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`journey.ns.cloudflare.com`
NS	`miguel.ns.cloudflare.com`
		A	2606:4700:58::a29f:2c5f^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`miguel.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c35f^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`miguel.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:235f^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`miguel.ns.cloudflare.com`
		A	108.162.195.95^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`miguel.ns.cloudflare.com`
		A	162.159.44.95^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`miguel.ns.cloudflare.com`
		A	172.64.35.95^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`miguel.ns.cloudflare.com`
MX	`bookshark-com.mail.protection.outlook.com` ⭐
		A	2a01:111:f403:c802::^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-cy4pr03cu00100.inbound.protection.outlook.com`
		A	2a01:111:f403:c92c::3^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-dm5pr04cu00103.inbound.protection.outlook.com`
		A	2a01:111:f403:c936::^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-cy1pr05cu00400.inbound.protection.outlook.com`
		A	2a01:111:f403:c946::2^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-ch4pr04cu00102.inbound.protection.outlook.com`
		A	40.93.192.4^{🇺🇸 Microsoft40.80.0.0/12}
			PTR	`mail-dm2pr04cu00404.inbound.protection.outlook.com`
		A	52.101.9.2^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-mn2pr02cu00202.inbound.protection.outlook.com`
		A	52.101.41.22^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-sj2pr05cu00406.inbound.protection.outlook.com`
		A	52.101.42.14^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-mw2pr04cu00106.inbound.protection.outlook.com`
TXT	`BDI-268-ndj`
TXT	`MS=ms11327771`
TXT	`Vy6tv55P+yVEzKRCP2r1YaHss5Y/yTQVGO//HAYGlmjwWqyDdgp9BgCB0jYzO8R9XKm2k1CYlmgob...`
TXT	`_globalsign-domain-verification=utUk12Jw6ZXWefUSX6pIfLy6uw3luzj2XVGXAxUkwk`
TXT	`google-site-verification=1xxTovHp5_JI-x3Qb1-lWMRMikKtZvTzOGsVHdE8Zts`
TXT	`klaviyo-site-verification=TxwBzZ`
TXT	`pax8validate`
TXT	`v=spf1 include:mail.zendesk.com include:spf.protection.outlook.com include:se...`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4	104.21.76.151, 172.67.196.66
		IPv6	2606:4700:3036::6815:4c97, 2606:4700:3037::ac43:c442
SOA	`journey.ns.cloudflare.com`dns@cloudflare.com serial=2396343503

`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=1774711657

rank #696413 globally
rank #317581 in the tld

Subdomains

homeschool.bookshark.com

Same first word

bookshark.com

Similar names

sharkbook.ai

DNS History

20 records (7 active, 13 former)

○NSdns1.registrar-servers.com2015-07-26 → 2018-01-17 · 4 obs

● 2015-07-26 14:57:52
● 2018-01-17 21:49:02
○ 2026-03-28 08:59:44
○ 2026-03-28 15:32:58

○NSdns2.registrar-servers.com2015-07-26 → 2018-01-17 · 4 obs

● 2015-07-26 14:57:52
● 2018-01-17 21:49:02
○ 2026-03-28 08:59:44
○ 2026-03-28 15:32:58

○NSdns3.registrar-servers.com2015-07-26 → 2016-04-29 · 4 obs

● 2015-07-26 14:57:52
● 2016-04-29 21:56:58
○ 2017-01-03 01:20:36
○ 2026-03-28 15:32:58

○NSdns4.registrar-servers.com2015-07-26 → 2016-04-29 · 4 obs

● 2015-07-26 14:57:52
● 2016-04-29 21:56:58
○ 2017-01-03 01:20:36
○ 2026-03-28 15:32:58

○NSdns5.registrar-servers.com2015-07-26 → 2016-04-29 · 4 obs

● 2015-07-26 14:57:52
● 2016-04-29 21:56:58
○ 2017-01-03 01:20:36
○ 2026-03-28 15:32:58

●NSjourney.ns.cloudflare.com2026-03-28 → 2026-03-28 · 3 obs

○ 2018-01-17 21:49:02
● 2026-03-28 08:59:44
● 2026-03-28 15:32:58

●NSmiguel.ns.cloudflare.com2026-03-28 → 2026-03-28 · 3 obs

○ 2018-01-17 21:49:02
● 2026-03-28 08:59:44
● 2026-03-28 15:32:58

○NSpdns1.registrar-servers.com2026-03-28 → 2026-03-28 · 2 obs

○ 2026-03-28 08:59:44
○ 2026-03-28 15:32:58

○NSpdns2.registrar-servers.com2026-03-28 → 2026-03-28 · 2 obs

○ 2026-03-28 08:59:44
○ 2026-03-28 15:32:58

●MXbookshark-com.mail.protection.outlook.com2026-03-28 → 2026-03-28 · 3 obs

○ 2018-01-17 21:49:02
● 2026-03-28 08:59:44
● 2026-03-28 15:32:58

○MXinquisicorp.com.inbound10.mxlogic.net2015-07-26 → 2016-04-29 · 4 obs

● 2015-07-26 14:57:52
● 2016-04-29 21:56:58
○ 2017-01-03 01:20:36
○ 2026-03-28 15:32:58

○MXinquisicorp.com.inbound10.mxlogicmx.net2015-07-26 → 2016-04-29 · 4 obs

● 2015-07-26 14:57:52
● 2016-04-29 21:56:58
○ 2017-01-03 01:20:36
○ 2026-03-28 15:32:58

○MXmx1-us1.ppe-hosted.com2017-01-03 → 2018-01-17 · 5 obs

○ 2016-04-29 21:56:58
● 2017-01-03 01:20:36
● 2018-01-17 21:49:02
○ 2026-03-28 08:59:44
○ 2026-03-28 15:32:58

○MXmx2-us1.ppe-hosted.com2017-01-03 → 2018-01-17 · 5 obs

○ 2016-04-29 21:56:58
● 2017-01-03 01:20:36
● 2018-01-17 21:49:02
○ 2026-03-28 08:59:44
○ 2026-03-28 15:32:58

●A104.21.76.1512026-03-28 → 2026-03-28 · 3 obs

○ 2018-01-17 21:49:02
● 2026-03-28 08:59:44
● 2026-03-28 15:32:58

●A172.67.196.662026-03-28 → 2026-03-28 · 3 obs

○ 2018-01-17 21:49:02
● 2026-03-28 08:59:44
● 2026-03-28 15:32:58

●A2606:4700:3036::6815:4c972026-03-28 → 2026-03-28 · 3 obs

○ 2018-01-17 21:49:02
● 2026-03-28 08:59:44
● 2026-03-28 15:32:58

●A2606:4700:3037::ac43:c4422026-03-28 → 2026-03-28 · 3 obs

○ 2018-01-17 21:49:02
● 2026-03-28 08:59:44
● 2026-03-28 15:32:58

○A64.78.188.382015-07-26 → 2018-01-17 · 4 obs

● 2015-07-26 14:57:52
● 2018-01-17 21:49:02
○ 2026-03-28 08:59:44
○ 2026-03-28 15:32:58

○A65.112.122.422026-03-28 → 2026-03-28 · 2 obs

○ 2026-03-28 08:59:44
○ 2026-03-28 15:32:58

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
bookshark.com	journey.ns.cloudflare.com, miguel.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.195.95

NS records: journey.ns.cloudflare.com, miguel.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for bookshark.com (unsigned zone)

⏱️ Timing

Total: 149ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.196.66, 104.21.76.151`
AAAA	2	`2606:4700:3037::ac43:c442, 2606:4700:3036::6815:4c97`
NS	2	`journey.ns.cloudflare.com, miguel.ns.cloudflare.com`
MX	1	`bookshark-com.mail.protection.outlook.co`
TXT	8	`BDI-268-ndj, MS=ms11327771...`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`journey.ns.cloudflare.com dns.cloudflare`

📌 Glue Records Collected

Total: 12

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

Analysis

Hierarchy

bookshark.com is the parent of homeschool.bookshark.com.

IP Addresses

Four IP numbers are pointed to by bookshark.com: 2606:4700:3036::6815:4c97, 2606:4700:3037::ac43:c442, 104.21.76.151 and 172.67.196.66.

other host names including deciduouspress.com.au, potenzafacile.shop, gayandlesbianweddings.com, ylatis.eu and www.godamanga.art share IP numbers with bookshark.com.

Name Servers

bookshark.com is delegated to two name servers journey.ns.cloudflare.com and miguel.ns.cloudflare.com.

bookshark.com shares the same name server setup as other domains, for instance cdn-gamma.com, inquisicorp.com, abuse.cloudflare.com, cdn-pi.com and dubbing-copy.com.

bookshark.com at least partially shares name servers with other domains, for instance endoflifecelebration.com, putthat(0x73686974)onthelist.com, agileineducation.org, developers503.com and winetfsa.com.br.

These name servers are commonly used alongside raquel.ns.cloudflare.com and dayana.ns.cloudflare.com.

Host names with six IP numbers:

Host name journey.ns.cloudflare.com points to: 2606:4700:50::a29f:2603, 2803:f800:50::6ca2:c203, 2a06:98c1:50::ac40:2203, 108.162.194.3, 162.159.38.3 and 172.64.34.3.

Host name miguel.ns.cloudflare.com points to: 2606:4700:58::a29f:2c5f, 2803:f800:50::6ca2:c35f, 2a06:98c1:50::ac40:235f, 108.162.195.95, 162.159.44.95 and 172.64.35.95.

Mail Servers

bookshark.com is handled by a single mail server, bookshark-com.mail.protection.outlook.com.

Host bookshark-com.mail.protection.outlook.com points to eight IP numbers: 2a01:111:f403:c802::, 2a01:111:f403:c92c::3, 2a01:111:f403:c936::, 2a01:111:f403:c946::2, 40.93.192.4, 52.101.9.2, 52.101.41.22 and 52.101.42.14.

bookshark.com - robtex.com

bookshark.com

com

Subdomains

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

Hierarchy

IP Addresses

Name Servers

Mail Servers

`bookshark.com`

`com`