`return-booking.com`

DNSSEC	⚠️ Not signed
A	2001:8d8:100f:f000::2f8^{🇩🇪 IONOS-AS2001:8d8::/32 DE-IONOS-20020910}
		PTR	`2001-08d8-100f-f000-0000-0000-0000-02f8.elastic-ssl.ui-r.com`
A	217.160.0.67^{🇩🇪 IONOS-AS217.160.0.0/16 IONOS-PA-3}
NS	`ns1122.ui-dns.biz` ⭐
		A	2001:8d8:fe:53:0:d9a0:517a:100^{🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific}
			PTR	`ns1122.ui-dns.biz`
		A	217.160.81.122^{🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific}
			PTR	`ns1122.ui-dns.biz`
NS	`ns1122.ui-dns.com`
		A	2001:8d8:fe:53:0:d9a0:527a:100^{🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific}
			PTR	`ns1122.ui-dns.com`
		A	217.160.82.122^{🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific}
			PTR	`ns1122.ui-dns.com`
NS	`ns1122.ui-dns.de`
		A	2607:f1c0:fe:53:185:132:32:122^{🇺🇸 IONOS-ANYCAST2607:f1c0:fe::/47 AS8560 global anycast services (more specific) 1&1 IONOS Inc. 701 Lee Rd, Suite 300 Chesterbrook, PA 19087 US}
			PTR	`ns1122.ui-dns.de`
		A	217.160.80.122^{🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific}
			PTR	`ns1122.ui-dns.de`
NS	`ns1122.ui-dns.org`
		A	2001:8d8:fe:53:0:d9a0:537a:100^{🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific}
			PTR	`ns1122.ui-dns.org`
		A	217.160.83.122^{🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific}
			PTR	`ns1122.ui-dns.org`
MX	`mx00.ionos.de` ⭐
		A	212.227.15.41^{🇩🇪 IONOS-AS212.227.0.0/16 IONOS-PA-2}
			PTR	`mx00.kundenserver.de`
MX	`mx01.ionos.de` ⭐
		A	217.72.192.67^{🇩🇪 IONOS-AS217.72.192.0/20 Web.de}
			PTR	`mx01.kundenserver.de`
TXT	`v=spf1 include:_spf-eu.ionos.com ~all`
TXT	`google-site-verification=9yBJ5cCmq4uQrAebBbwNEDiuEdIGdBZcNJUb09B7R_U`
SOA	`ns1122.ui-dns.biz`hostmaster@kundenserver.de 2017-03-29 #13

`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=1774443967

Same first word

return-booking.com

DNS History

18 records (8 active, 10 former)

○NSns-de.1and1-dns.biz2015-05-29 → 2017-02-17 · 4 obs

● 2015-05-29 07:18:06
● 2017-02-17 19:58:38
○ 2020-01-17 06:14:48
○ 2026-03-25 13:08:10

○NSns-de.1and1-dns.com2015-05-29 → 2017-02-17 · 4 obs

● 2015-05-29 07:18:06
● 2017-02-17 19:58:38
○ 2020-01-17 06:14:48
○ 2026-03-25 13:08:10

○NSns-de.1and1-dns.de2015-05-29 → 2017-02-17 · 4 obs

● 2015-05-29 07:18:06
● 2017-02-17 19:58:38
○ 2020-01-17 06:14:48
○ 2026-03-25 13:08:10

○NSns-de.1and1-dns.org2015-05-29 → 2017-02-17 · 4 obs

● 2015-05-29 07:18:06
● 2017-02-17 19:58:38
○ 2020-01-17 06:14:48
○ 2026-03-25 13:08:10

●NSns1122.ui-dns.biz2020-01-17 → 2026-03-25 · 3 obs

○ 2017-02-17 19:58:38
● 2020-01-17 06:14:48
● 2026-03-25 13:08:10

●NSns1122.ui-dns.com2020-01-17 → 2026-03-25 · 3 obs

○ 2017-02-17 19:58:38
● 2020-01-17 06:14:48
● 2026-03-25 13:08:10

●NSns1122.ui-dns.de2020-01-17 → 2026-03-25 · 3 obs

○ 2017-02-17 19:58:38
● 2020-01-17 06:14:48
● 2026-03-25 13:08:10

●NSns1122.ui-dns.org2020-01-17 → 2026-03-25 · 3 obs

○ 2017-02-17 19:58:38
● 2020-01-17 06:14:48
● 2026-03-25 13:08:10

●MXmx00.ionos.de2026-02-28 → 2026-03-25 · 3 obs

○ 2020-01-17 06:14:48
● 2026-02-28 08:51:10
● 2026-03-25 13:08:10

○MXmx00.kundenserver.de2015-05-29 → 2020-01-17 · 4 obs

● 2015-05-29 07:18:06
● 2020-01-17 06:14:48
○ 2026-02-28 08:51:10
○ 2026-03-25 13:08:10

●MXmx01.ionos.de2026-02-28 → 2026-03-25 · 3 obs

○ 2020-01-17 06:14:48
● 2026-02-28 08:51:10
● 2026-03-25 13:08:10

○MXmx01.kundenserver.de2015-05-29 → 2020-01-17 · 4 obs

● 2015-05-29 07:18:06
● 2020-01-17 06:14:48
○ 2026-02-28 08:51:10
○ 2026-03-25 13:08:10

○A2001:8d8:1000:70e7:7c3b:1168:1368:192017-02-17 → 2017-02-17 · 4 obs

○ 2016-04-11 06:22:34
● 2017-02-17 19:58:38
○ 2020-01-17 06:14:48
○ 2026-03-25 13:08:10

○A2001:8d8:1000:70e7:fe0b:697d:ea2:18142015-05-29 → 2016-04-11 · 4 obs

● 2015-05-29 07:18:06
● 2016-04-11 06:22:34
○ 2017-02-17 19:58:38
○ 2026-03-25 13:08:10

●A2001:8d8:100f:f000::2f82020-01-17 → 2026-03-25 · 3 obs

○ 2017-02-17 19:58:38
● 2020-01-17 06:14:48
● 2026-03-25 13:08:10

●A217.160.0.672020-01-17 → 2026-03-25 · 3 obs

○ 2017-02-17 19:58:38
● 2020-01-17 06:14:48
● 2026-03-25 13:08:10

○A217.160.223.2072017-02-17 → 2017-02-17 · 4 obs

○ 2016-04-11 06:22:34
● 2017-02-17 19:58:38
○ 2020-01-17 06:14:48
○ 2026-03-25 13:08:10

○A87.106.115.2002015-05-29 → 2016-04-11 · 4 obs

● 2015-05-29 07:18:06
● 2016-04-11 06:22:34
○ 2017-02-17 19:58:38
○ 2026-03-25 13:08:10

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	e.gtld-servers.net, b.gtld-servers.net, l.gtld-servers.net, c.gtld-servers.net...	-
return-booking.com	ns1122.ui-dns.de, ns1122.ui-dns.biz, ns1122.ui-dns.org, ns1122.ui-dns.com	2 records

✅ Authoritative Response

Server:217.160.83.122

NS records: ns1122.ui-dns.de, ns1122.ui-dns.biz, ns1122.ui-dns.org, ns1122.ui-dns.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for return-booking.com (unsigned zone)

⏱️ Timing

Total: 464ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`217.160.0.67`
AAAA	1	`2001:8d8:100f:f000::2f8`
NS	4	`ns1122.ui-dns.org, ns1122.ui-dns.de...`
MX	2	`mx01.ionos.de (pri: 10), mx00.ionos.de (pri: 10)`
TXT	2	`v=spf1 include:_spf-eu.ionos.com ~all, google-site-verification=9yBJ5cCmq4uQrAe`
SOA	1	`ns1122.ui-dns.biz hostmaster.kundenserve`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns1122.ui-dns.com, ns1122.ui-dns.com)

Analysis

IP Addresses

return-booking.com resolves to two IP numbers: 2001:8d8:100f:f000::2f8 and 217.160.0.67.

other host names including www.tcsistemes.com, fuelcellpowertrain.de, coresio.de, infowarsshop.biz and buchpartner.de share IP numbers with return-booking.com.

Name Servers

return-booking.com is delegated to four name servers: ns1122.ui-dns.biz, ns1122.ui-dns.com, ns1122.ui-dns.de and ns1122.ui-dns.org.

return-booking.com at least partially shares name servers with other domains, for instance e-elahi.com, ksklie.com, cppc.de, thewield.com and lesgivrals.com.

These name servers are commonly used alongside ns1021.ui-dns.de, ns1094.ui-dns.de, ns1101.ui-dns.biz, ns1097.ui-dns.org, ns1028.ui-dns.de and ns1072.ui-dns.org.

Host names with two IP numbers:

ns1122.ui-dns.biz points to 2001:8d8:fe:53:0:d9a0:517a:100 and 217.160.81.122; ns1122.ui-dns.com points to 2001:8d8:fe:53:0:d9a0:527a:100 and 217.160.82.122; ns1122.ui-dns.de points to 2607:f1c0:fe:53:185:132:32:122 and 217.160.80.122; ns1122.ui-dns.org points to 2001:8d8:fe:53:0:d9a0:537a:100 and 217.160.83.122.

Mail Servers

Two mail servers handle return-booking.com: mx00.ionos.de and mx01.ionos.de.

return-booking.com shares the same mail server setup as other domains, for instance feuerwehrseelsorge.com, niveausteuerungen.com, lovmu.de, herrenmode-leon-finger.de and sleasing.de.

return-booking.com shares mail servers with other domains to some extent, for instance muehltal.de.

Host names with one IP number:

mx00.ionos.de points to 212.227.15.41

mx01.ionos.de points to 217.72.192.67

return-booking.com - robtex.com