`bookoapp.com`

DNSSEC	⚠️ Not signed
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 2620:4D:4000::/48}
			PTR	`dns1.p13.nsone.net`
		A	198.51.44.13^{🇺🇸 NSONE198.51.44.0/24 198.51.44.0}
			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^{🇺🇸 NSONE198.51.45.0/24 198.51.45.0}
			PTR	`dns2.p13.nsone.net`
MX	`aspmx.l.google.com` ⭐
		A	2607:f8b0:4004:c1d::1b^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`ww-in-f27.1e100.net`
		A	142.251.16.27^{🇺🇸 Google142.251.16.0/24}
			PTR	`bl-in-f27.1e100.net`
MX	`alt1.aspmx.l.google.com`⁽⁵⁾
		A	2800:3f0:4003:c0f::1a^{🇨🇱 Google2800:3f0:4003::/48}
		A	108.177.123.26^{🇺🇸 Google108.177.123.0/24}
			PTR	`lcscld-in-f26.1e100.net`
MX	`alt2.aspmx.l.google.com`⁽⁵⁾
		A	2a00:1450:400b:c02::1b^{🇮🇪 Google2a00:1450:400b::/48}
			PTR	`dj-in-f27.1e100.net`
		A	172.253.116.26^{🇺🇸 Google172.253.116.0/24}
			PTR	`dj-in-f26.1e100.net`
MX	`alt3.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:4009:c0f::1a^{🇬🇧 Google2a00:1450:4009::/48}
			PTR	`yulhrs-in-f26.1e100.net`
		A	192.178.223.26^{🇺🇸 Google192.178.223.0/24}
			PTR	`yulhrs-in-f26.1e100.net`
MX	`alt4.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:400c:c23::1b^{🇧🇪 Google2a00:1450:400c::/48}
			PTR	`yubrupd-in-f27.1e100.net`
		A	172.253.157.26^{🇺🇸 Google172.253.0.0/16}
			PTR	`yubrupd-in-f26.1e100.net`
TXT	`google-site-verification=bnIoqZ6xitmSilTdhP6xfN22NeBs2LE1rH5ZGvHVs2k`
TXT	`google-site-verification=bnloqZ6xitmSiITdhP6xfN22NeBs2LE1rH5ZGv...`
TXT	`stripe-verification=DBACE21D2C8820153E2ED6628CA9FC795351EED8C452F517027B14029...`
TXT	`v=spf1 include:_spf.google.com ~all`
SOA	`ns1.vercel-dns.com`hostmaster@nsone.net serial=1754119658

`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=1783471996

Same first word

bookoapp.com

Similar names

appboook.com

bookappo.com

appobook.com

bookappo.cz

DNS History

18 records (8 active, 10 former)

●NSns1.vercel-dns.com2026-06-19 → 2026-07-08 · 3 obs

○ 2018-07-15 12:03:36
● 2026-06-19 19:21:02
● 2026-07-08 00:55:54

●NSns2.vercel-dns.com2026-06-19 → 2026-07-08 · 3 obs

○ 2018-07-15 12:03:36
● 2026-06-19 19:21:02
● 2026-07-08 00:55:54

○NSns25.domaincontrol.com2018-07-15 → 2018-07-15 · 3 obs

● 2018-07-15 12:03:36
○ 2026-06-19 19:21:02
○ 2026-07-08 00:55:54

○NSns26.domaincontrol.com2018-07-15 → 2018-07-15 · 3 obs

● 2018-07-15 12:03:36
○ 2026-06-19 19:21:02
○ 2026-07-08 00:55:54

●MXalt1.aspmx.l.google.com2026-06-19 → 2026-07-08 · 2 obs

● 2026-06-19 19:21:02
● 2026-07-08 00:55:54

●MXalt2.aspmx.l.google.com2026-06-19 → 2026-07-08 · 2 obs

● 2026-06-19 19:21:02
● 2026-07-08 00:55:54

●MXalt3.aspmx.l.google.com2026-06-19 → 2026-07-08 · 2 obs

● 2026-06-19 19:21:02
● 2026-07-08 00:55:54

●MXalt4.aspmx.l.google.com2026-06-19 → 2026-07-08 · 2 obs

● 2026-06-19 19:21:02
● 2026-07-08 00:55:54

●MXaspmx.l.google.com2026-06-19 → 2026-07-08 · 2 obs

● 2026-06-19 19:21:02
● 2026-07-08 00:55:54

○A184.168.221.412018-07-15 → 2018-07-15 · 3 obs

● 2018-07-15 12:03:36
○ 2026-06-19 19:21:02
○ 2026-07-08 00:55:54

○A184.168.221.522018-07-15 → 2018-07-15 · 3 obs

● 2018-07-15 12:03:36
○ 2026-06-19 19:21:02
○ 2026-07-08 00:55:54

○A184.168.221.582018-07-15 → 2018-07-15 · 3 obs

● 2018-07-15 12:03:36
○ 2026-06-19 19:21:02
○ 2026-07-08 00:55:54

○A184.168.221.632018-07-15 → 2018-07-15 · 3 obs

● 2018-07-15 12:03:36
○ 2026-06-19 19:21:02
○ 2026-07-08 00:55:54

●A216.198.79.12026-06-19 → 2026-07-08 · 3 obs

○ 2018-07-15 12:03:36
● 2026-06-19 19:21:02
● 2026-07-08 00:55:54

○A50.63.202.452018-07-15 → 2018-07-15 · 3 obs

● 2018-07-15 12:03:36
○ 2026-06-19 19:21:02
○ 2026-07-08 00:55:54

○A50.63.202.492018-07-15 → 2018-07-15 · 3 obs

● 2018-07-15 12:03:36
○ 2026-06-19 19:21:02
○ 2026-07-08 00:55:54

○A50.63.202.552018-07-15 → 2018-07-15 · 3 obs

● 2018-07-15 12:03:36
○ 2026-06-19 19:21:02
○ 2026-07-08 00:55:54

○A50.63.202.582018-07-15 → 2018-07-15 · 3 obs

● 2018-07-15 12:03:36
○ 2026-06-19 19:21:02
○ 2026-07-08 00:55:54

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
bookoapp.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 bookoapp.com (unsigned zone)

⏱️ Timing

Total: 144ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`216.198.79.1`
NS	2	`ns1.vercel-dns.com, ns2.vercel-dns.com`
MX	5	`aspmx.l.google.com (pri: 1), alt3.aspmx.l.google.com (pri: 10)...`
TXT	4	`google-site-verification=bnIoqZ6xitmSilT, google-site-verification=bnloqZ6xitmSiIT...`
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

bookoapp.com directs to one IP number, which is 216.198.79.1.

Among the host names that share IP numbers with bookoapp.com are netchaps.co.uk, proton.link, rviv.me and two others.

Name Servers

Two name servers handle the delegation for bookoapp.com: ns1.vercel-dns.com and ns2.vercel-dns.com.

bookoapp.com has the same name server delegation as a number of other domains, such as saasmith.com, ilium.io, 1440.ai and two more.

There is at least partial name server overlap between bookoapp.com and other domains — sqc.agency, 1000engineers.ai, nasutow.pl and two more among them.

ns1.vercel-dns.com and ns2.vercel-dns.com both carry two IP addresses. The A records for ns1.vercel-dns.com are 198.51.44.13 and 2620:4d:4000:6259:7:13:0:1; the A records for ns2.vercel-dns.com are 198.51.45.13 and 2a00:edc0:6259:7:13::2.