51ytb.com - robtex.com

51ytb.com

DNSSEC⚠️ Not signed
A173.255.252.62🇺🇸 AKAMAI-LINODE-AP173.255.240.0/20 Akamai Technologies
PTRli262-62.members.linode.com
NSdns1.hosteaseservers.com ⭐ ⚠️ Not in parent delegation
A162.251.82.251🇺🇸 Cloudflare162.251.82.0/24 PDR
PTR162.251.82.251.reverse.myorderbox.com
NSdns2.hosteaseservers.com ⚠️ Not in parent delegation
A162.251.82.122🇺🇸 Cloudflare162.251.82.0/24 PDR
PTR162.251.82.122.reverse.myorderbox.com
NSdns3.hosteaseservers.com ⚠️ Not in parent delegation
A162.251.82.247🇺🇸 Cloudflare162.251.82.0/24 PDR
PTR162.251.82.247.reverse.myorderbox.com
NSdns4.hosteaseservers.com ⚠️ Not in parent delegation
A162.251.82.124🇺🇸 Cloudflare162.251.82.0/24 PDR
PTR162.251.82.124.reverse.myorderbox.com
NShostease.earth.orderbox-dns.com ⚠️ Not in zone NS records
A162.251.82.118🇺🇸 Cloudflare162.251.82.0/24 PDR
PTR162.251.82.118.reverse.myorderbox.com
A162.251.82.119🇺🇸 Cloudflare162.251.82.0/24 PDR
PTR162.251.82.119.reverse.myorderbox.com
A162.251.82.246🇺🇸 Cloudflare162.251.82.0/24 PDR
PTR162.251.82.246.reverse.myorderbox.com
A162.251.82.247🇺🇸 Cloudflare162.251.82.0/24 PDR
PTR162.251.82.247.reverse.myorderbox.com
NShostease.mars.orderbox-dns.com ⚠️ Not in zone NS records
A162.251.82.124🇺🇸 Cloudflare162.251.82.0/24 PDR
PTR162.251.82.124.reverse.myorderbox.com
A162.251.82.125🇺🇸 Cloudflare162.251.82.0/24 PDR
PTR162.251.82.125.reverse.myorderbox.com
A162.251.82.252🇺🇸 Cloudflare162.251.82.0/24 PDR
PTR162.251.82.252.reverse.myorderbox.com
A162.251.82.253🇺🇸 Cloudflare162.251.82.0/24 PDR
PTR162.251.82.253.reverse.myorderbox.com
NShostease.mercury.orderbox-dns.com ⚠️ Not in zone NS records
A162.251.82.122🇺🇸 Cloudflare162.251.82.0/24 PDR
PTR162.251.82.122.reverse.myorderbox.com
A162.251.82.123🇺🇸 Cloudflare162.251.82.0/24 PDR
PTR162.251.82.123.reverse.myorderbox.com
A162.251.82.250🇺🇸 Cloudflare162.251.82.0/24 PDR
PTR162.251.82.250.reverse.myorderbox.com
A162.251.82.251🇺🇸 Cloudflare162.251.82.0/24 PDR
PTR162.251.82.251.reverse.myorderbox.com
NShostease.venus.orderbox-dns.com ⚠️ Not in zone NS records
A162.251.82.120🇺🇸 Cloudflare162.251.82.0/24 PDR
PTR162.251.82.120.reverse.myorderbox.com
A162.251.82.121🇺🇸 Cloudflare162.251.82.0/24 PDR
PTR162.251.82.121.reverse.myorderbox.com
A162.251.82.248🇺🇸 Cloudflare162.251.82.0/24 PDR
PTR162.251.82.248.reverse.myorderbox.com
A162.251.82.249🇺🇸 Cloudflare162.251.82.0/24 PDR
PTR162.251.82.249.reverse.myorderbox.com
SOAdns1.hosteaseservers.comwulianmm@hotmail.com 2020-10-04 #2

com

DNSSEC🔒 Signed (DS record present)
NSa.gtld-servers.net ⭐
NSb.gtld-servers.net
NSc.gtld-servers.net
NSd.gtld-servers.net
NSe.gtld-servers.net
NSf.gtld-servers.net
NSg.gtld-servers.net
NSh.gtld-servers.net
NSi.gtld-servers.net
NSj.gtld-servers.net
NSk.gtld-servers.net
NSl.gtld-servers.net
NSm.gtld-servers.net
SOAa.gtld-servers.netnstld@verisign-grs.com serial=1774624217

Subdomains

www.51ytb.com

Same first word

51ytb.com

Similar names

51byt.net

DNS History

18 records (9 active, 9 former)

2017201820192020202120222023202420252026NSdns1.hosteaseservers.comdns2.hosteaseservers.comdns3.hosteaseservers.comdns4.hosteaseservers.comhostease.earth.orderbox-dns.comhostease.mars.orderbox-dns.comhostease.mercury.orderbox-dns.comhostease.venus.orderbox-dns.comdns10.hichina.comdns9.hichina.comns35.domaincontrol.comns36.domaincontrol.comMXmailstore1.secureserver.netmxn.mxhichina.commxw.mxhichina.comsmtp.secureserver.netA173.255.252.62142.111.223.244
●NSdns1.hosteaseservers.com2026-03-27 → 2026-03-27 · 2 obs
○ 2017-03-31 04:25:48
● 2026-03-27 15:23:02
○NSdns10.hichina.com2016-03-27 → 2016-08-11 · 4 obs
● 2016-03-27 04:29:16
● 2016-08-11 06:45:28
○ 2017-03-31 04:25:48
○ 2026-03-27 15:23:02
●NSdns2.hosteaseservers.com2026-03-27 → 2026-03-27 · 2 obs
○ 2017-03-31 04:25:48
● 2026-03-27 15:23:02
●NSdns3.hosteaseservers.com2026-03-27 → 2026-03-27 · 2 obs
○ 2017-03-31 04:25:48
● 2026-03-27 15:23:02
●NSdns4.hosteaseservers.com2026-03-27 → 2026-03-27 · 2 obs
○ 2017-03-31 04:25:48
● 2026-03-27 15:23:02
○NSdns9.hichina.com2016-03-27 → 2016-08-11 · 4 obs
● 2016-03-27 04:29:16
● 2016-08-11 06:45:28
○ 2017-03-31 04:25:48
○ 2026-03-27 15:23:02
●NShostease.earth.orderbox-dns.com2026-03-27 → 2026-03-27 · 2 obs
○ 2017-03-31 04:25:48
● 2026-03-27 15:23:02
●NShostease.mars.orderbox-dns.com2026-03-27 → 2026-03-27 · 2 obs
○ 2017-03-31 04:25:48
● 2026-03-27 15:23:02
●NShostease.mercury.orderbox-dns.com2026-03-27 → 2026-03-27 · 2 obs
○ 2017-03-31 04:25:48
● 2026-03-27 15:23:02
●NShostease.venus.orderbox-dns.com2026-03-27 → 2026-03-27 · 2 obs
○ 2017-03-31 04:25:48
● 2026-03-27 15:23:02
○NSns35.domaincontrol.com2017-03-31 → 2017-03-31 · 3 obs
○ 2016-08-11 06:45:28
● 2017-03-31 04:25:48
○ 2026-03-27 15:23:02
○NSns36.domaincontrol.com2017-03-31 → 2017-03-31 · 3 obs
○ 2016-08-11 06:45:28
● 2017-03-31 04:25:48
○ 2026-03-27 15:23:02
○MXmailstore1.secureserver.net2017-03-31 → 2017-03-31 · 3 obs
○ 2016-08-11 06:45:28
● 2017-03-31 04:25:48
○ 2026-03-27 15:23:02
○MXmxn.mxhichina.com2016-03-27 → 2016-08-11 · 4 obs
● 2016-03-27 04:29:16
● 2016-08-11 06:45:28
○ 2017-03-31 04:25:48
○ 2026-03-27 15:23:02
○MXmxw.mxhichina.com2016-03-27 → 2016-08-11 · 4 obs
● 2016-03-27 04:29:16
● 2016-08-11 06:45:28
○ 2017-03-31 04:25:48
○ 2026-03-27 15:23:02
○MXsmtp.secureserver.net2017-03-31 → 2017-03-31 · 3 obs
○ 2016-08-11 06:45:28
● 2017-03-31 04:25:48
○ 2026-03-27 15:23:02
○A142.111.223.2442017-03-31 → 2017-03-31 · 2 obs
● 2017-03-31 04:25:48
○ 2026-03-27 15:23:02
●A173.255.252.622026-03-27 → 2026-03-27 · 2 obs
○ 2017-03-31 04:25:48
● 2026-03-27 15:23:02

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coma.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...-
51ytb.comhostease.mercury.orderbox-dns.com, hostease.venus.orderbox-dns.com, hostease.earth.orderbox-dns.com, hostease.mars.orderbox-dns.com16 records

✅ Authoritative Response

Server:162.251.82.120

NS records: hostease.mercury.orderbox-dns.com, hostease.venus.orderbox-dns.com, hostease.earth.orderbox-dns.com, hostease.mars.orderbox-dns.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for 51ytb.com (unsigned zone)

⏱️ Timing

Total: 257ms | Queries: -

📄 Records

TypeCountSample Data
A1173.255.252.62
NS4dns3.hosteaseservers.com, dns2.hosteaseservers.com...
SOA1dns1.hosteaseservers.com wulianmm.hotmai

📌 Glue Records Collected

Total: 16

Out-of-bailiwick: 16 (hostease.mercury.orderbox-dns.com, hostease.mercury.orderbox-dns.com, hostease.mercury.orderbox-dns.com...)

Analysis

Hierarchy

51ytb.com is the parent of www.51ytb.com.

IP Addresses

51ytb.com resolves to one IP number: 173.255.252.62.

Other host names such as www.51ytb.com and li262-62.members.linode.com share IP numbers with 51ytb.com.

Name Servers

51ytb.com is delegated to eight name servers: dns1.hosteaseservers.com, dns2.hosteaseservers.com, dns3.hosteaseservers.com, dns4.hosteaseservers.com, hostease.earth.orderbox-dns.com, hostease.mars.orderbox-dns.com, hostease.mercury.orderbox-dns.com and hostease.venus.orderbox-dns.com.

51ytb.com at least partially shares name servers with other domains, for instance aokthermal.com, hengshicomposite.com, zscxzx.com, roader.org and zhangjiajietourism.com.

Host names with four IP numbers:

hostease.earth.orderbox-dns.com points to: 162.251.82.118, 162.251.82.119, 162.251.82.246 and 162.251.82.247.

hostease.mars.orderbox-dns.com points to: 162.251.82.124, 162.251.82.125, 162.251.82.252 and 162.251.82.253.

hostease.mercury.orderbox-dns.com points to: 162.251.82.122, 162.251.82.123, 162.251.82.250 and 162.251.82.251.

hostease.venus.orderbox-dns.com points to: 162.251.82.120, 162.251.82.121, 162.251.82.248 and 162.251.82.249.

Host names with one IP number:

dns1.hosteaseservers.com points to: 162.251.82.251.

dns2.hosteaseservers.com points to: 162.251.82.122.

dns3.hosteaseservers.com points to: 162.251.82.247.

dns4.hosteaseservers.com points to: 162.251.82.124.

Host names that point to 162.251.82.247: hostease.earth.orderbox-dns.com and dns3.hosteaseservers.com.

Host names that point to 162.251.82.124: hostease.mars.orderbox-dns.com and dns4.hosteaseservers.com.

Host names that point to 162.251.82.122: hostease.mercury.orderbox-dns.com and dns2.hosteaseservers.com.

Host names that point to 162.251.82.251: hostease.mercury.orderbox-dns.com and dns1.hosteaseservers.com.