`bookyourself.com`

DNSSEC	⚠️ Not signed
A	2a00:4b40:aaaa:2007::6^{🇸🇰 WEBSUPPORT-SRO-SK-AS2a00:4b40::/32}
A	37.9.175.181^{🇸🇰 WEBSUPPORT-SRO-SK-AS37.9.175.0/24}
NS	`ns1.websupport.sk` ⭐
		A	2a10:bbc0::11^{🇨🇿 ACTIVE24-AS2a10:bbc0::/32}
			PTR	`ns1.websupport.eu`
		A	45.10.97.11^{🇨🇿 ACTIVE24-AS45.10.97.0/24}
			PTR	`ns1.websupport.eu`
NS	`ns2.websupport.sk`
		A	2a02:250:3::12^{🇸🇪 ACTIVE24-AS2a02:250:3::/48}
			PTR	`ns2.websupport.eu`
		A	185.71.159.12^{🇸🇪 ACTIVE24-AS185.71.159.0/24}
			PTR	`ns2.websupport.eu`
NS	`ns3.websupport.sk`
		A	2a10:bbc0::13^{🇨🇿 ACTIVE24-AS2a10:bbc0::/32}
			PTR	`ns3.websupport.eu`
		A	45.10.97.13^{🇨🇿 ACTIVE24-AS45.10.97.0/24}
			PTR	`ns3.websupport.eu`
MX	`mailin2.bookyourself.com` ⭐
		A	37.9.169.113^{🇸🇰 WEBSUPPORT-SRO-SK-AS37.9.168.0/21 Websupport, s.r.o.}
			PTR	`m1-u7-mx.websupport.sk`
MX	`mailin1.bookyourself.com`⁽¹⁰⁰⁾
		A	2a00:4b40:aaaa:2101:45:13:137:9^{🇸🇰 WEBSUPPORT-SRO-SK-AS2a00:4b40::/32}
			PTR	`m1-u7-mx.websupport.sk`
		A	45.13.137.9^{🇸🇰 WEBSUPPORT-SRO-SK-AS45.13.137.0/24}
			PTR	`m1-u7-mx.websupport.sk`
TXT	`v=spf1 a mx include:_spf.m1.websupport.sk ?all`
TXT	`spf2.0/pra a mx include:_sid.m1.websupport.sk ?all`
SOA	`ns1.websupport.sk`admin@websupport.sk serial=1694244499

`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

Subdomains

mailin2.bookyourself.com

mailin1.bookyourself.com

mail.bookyourself.com

www.bookyourself.com

ns2.bookyourself.com

pl.bookyourself.com

ns1.bookyourself.com

Same first word

bookyourself.com

DNS History

17 records (7 active, 10 former)

○NSgene.ns.cloudflare.com2016-09-04 → 2016-09-04 · 4 obs

○ 2016-06-19 20:21:02
● 2016-09-04 09:17:50
○ 2026-02-15 08:38:38
○ 2026-03-17 13:07:04

○NSns1.bookyourself.com2015-08-04 → 2016-06-19 · 4 obs

● 2015-08-04 13:27:36
● 2016-06-19 20:21:02
○ 2016-09-04 09:17:50
○ 2026-03-17 13:07:04

●NSns1.websupport.sk2026-02-15 → 2026-03-17 · 3 obs

○ 2016-09-04 09:17:50
● 2026-02-15 08:38:38
● 2026-03-17 13:07:04

○NSns2.bookyourself.com2015-08-04 → 2016-06-19 · 4 obs

● 2015-08-04 13:27:36
● 2016-06-19 20:21:02
○ 2016-09-04 09:17:50
○ 2026-03-17 13:07:04

●NSns2.websupport.sk2026-02-15 → 2026-03-17 · 3 obs

○ 2016-09-04 09:17:50
● 2026-02-15 08:38:38
● 2026-03-17 13:07:04

●NSns3.websupport.sk2026-02-15 → 2026-03-17 · 3 obs

○ 2016-09-04 09:17:50
● 2026-02-15 08:38:38
● 2026-03-17 13:07:04

○NSterin.ns.cloudflare.com2016-09-04 → 2016-09-04 · 4 obs

○ 2016-06-19 20:21:02
● 2016-09-04 09:17:50
○ 2026-02-15 08:38:38
○ 2026-03-17 13:07:04

○MXmail.bookyourself.com2015-08-04 → 2016-09-04 · 4 obs

● 2015-08-04 13:27:36
● 2016-09-04 09:17:50
○ 2026-02-15 08:38:38
○ 2026-03-17 13:07:04

●MXmailin1.bookyourself.com2026-02-15 → 2026-03-17 · 3 obs

○ 2016-09-04 09:17:50
● 2026-02-15 08:38:38
● 2026-03-17 13:07:04

●MXmailin2.bookyourself.com2026-02-15 → 2026-03-17 · 3 obs

○ 2016-09-04 09:17:50
● 2026-02-15 08:38:38
● 2026-03-17 13:07:04

○A104.27.168.252016-09-04 → 2016-09-04 · 4 obs

○ 2016-06-19 20:21:02
● 2016-09-04 09:17:50
○ 2026-02-15 08:38:38
○ 2026-03-17 13:07:04

○A104.27.169.252016-09-04 → 2016-09-04 · 4 obs

○ 2016-06-19 20:21:02
● 2016-09-04 09:17:50
○ 2026-02-15 08:38:38
○ 2026-03-17 13:07:04

○A185.2.43.142015-08-04 → 2016-06-19 · 4 obs

● 2015-08-04 13:27:36
● 2016-06-19 20:21:02
○ 2016-09-04 09:17:50
○ 2026-03-17 13:07:04

○A2400:cb00:2048:1::681b:a8192016-09-04 → 2016-09-04 · 4 obs

○ 2016-06-19 20:21:02
● 2016-09-04 09:17:50
○ 2026-02-15 08:38:38
○ 2026-03-17 13:07:04

○A2400:cb00:2048:1::681b:a9192016-09-04 → 2016-09-04 · 4 obs

○ 2016-06-19 20:21:02
● 2016-09-04 09:17:50
○ 2026-02-15 08:38:38
○ 2026-03-17 13:07:04

●A2a00:4b40:aaaa:2007::62026-02-15 → 2026-03-17 · 3 obs

○ 2016-09-04 09:17:50
● 2026-02-15 08:38:38
● 2026-03-17 13:07:04

●A37.9.175.1812026-02-15 → 2026-03-17 · 3 obs

○ 2016-09-04 09:17:50
● 2026-02-15 08:38:38
● 2026-03-17 13:07:04

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
bookyourself.com	ns1.websupport.sk, ns2.websupport.sk, ns3.websupport.sk	-

✅ Authoritative Response

Server: 45.10.97.13

NS records: ns1.websupport.sk, ns2.websupport.sk, ns3.websupport.sk

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for bookyourself.com (unsigned zone)

⏱️ Timing

Total: 637ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`37.9.175.181`
AAAA	1	`2a00:4b40:aaaa:2007::6`
NS	3	`ns1.websupport.sk, ns2.websupport.sk...`
MX	2	`mailin2.bookyourself.com (pri: 10), mailin1.bookyourself.com (pri: 100)`
TXT	2	`v=spf1 a mx include:_spf.m1.websupport.s, spf2.0/pra a mx include:_sid.m1.websuppo`
SOA	1	`ns1.websupport.sk admin.websupport.sk`

Analysis

Hierarchy

bookyourself.com is a parent of mailin2.bookyourself.com, mailin1.bookyourself.com, mail.bookyourself.com, www.bookyourself.com, ns2.bookyourself.com and several other host names.

IP Addresses

bookyourself.com resolves to two IPs: 2a00:4b40:aaaa:2007::6 and 37.9.175.181.

other host names for instance mailinbackup1.tlumacz.sk, vratna.org, 189.43.oravanet.sk, zikavsky.sk and etlac.sk share IP numbers with bookyourself.com.

Name Servers

bookyourself.com is delegated to three name servers: ns1.websupport.sk, ns2.websupport.sk and ns3.websupport.sk.

bookyourself.com at least partially shares name servers with other domains, for instance joincart.com, kna.sk, poring.cz, festra.sk and osp.sk.

These name servers are often used with dns1.4system.sk and dns2.4system.sk.

Host names with two IP numbers:

Host ns1.websupport.sk points to 2a10:bbc0::11 and 45.10.97.11.

Host ns2.websupport.sk points to 2a02:250:3::12 and 185.71.159.12.

Host ns3.websupport.sk points to 2a10:bbc0::13 and 45.10.97.13.

Mail Servers

bookyourself.com is handled by two mail servers: mailin1.bookyourself.com and mailin2.bookyourself.com.

Host names with two IP numbers: mailin1.bookyourself.com points to 2a00:4b40:aaaa:2101:45:13:137:9 and 45.13.137.9.

Host names with one IP number: mailin2.bookyourself.com points to 37.9.169.113.

bookyourself.com - robtex.com