rybk.com - dns.ninja

`rybk.com`

DNSSEC	⚠️ Not signed
NS	`dns11.hichina.com` ⭐
		A	2408:4009:501::19^{🇨🇳 Alibaba-Cloud2408:4009:501::/48}
		A	39.96.153.42^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	39.96.153.52^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	47.118.199.202^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	47.118.199.212^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	120.76.107.42^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	120.76.107.52^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	139.224.142.112^{🇨🇳 Alibaba-Cloud139.224.128.0/17 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District,}
		A	139.224.142.122^{🇨🇳 Alibaba-Cloud139.224.128.0/17 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District,}
NS	`dns12.hichina.com`
		A	2408:4009:501::20^{🇨🇳 Alibaba-Cloud2408:4009:501::/48}
		A	39.96.153.41^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	39.96.153.51^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	47.118.199.201^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	47.118.199.211^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	120.76.107.41^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	120.76.107.51^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	139.224.142.111^{🇨🇳 Alibaba-Cloud139.224.128.0/17 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District,}
		A	139.224.142.121^{🇨🇳 Alibaba-Cloud139.224.128.0/17 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District,}
MX	`mail.rybk.com` ⭐
		A	61.136.57.232^{🇨🇳 CHINA169-Backbone61.136.0.0/18 CNC Group CHINA169 Tianjin Province Network}
SOA	`dns11.hichina.com`hostmaster@hichina.com 2026-06-04 #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=1785123637

Subdomains

mail.rybk.com

Same first word

rybk.df.gov.br

rybk.ru

rybk.com

Similar names

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kybr.dev

DNS History

3 records (3 active, 0 former)

●NSdns11.hichina.com2015-06-18 → 2026-07-27 · 2 obs

● 2015-06-18 05:19:26
● 2026-07-27 04:03:32

●NSdns12.hichina.com2015-06-18 → 2026-07-27 · 2 obs

● 2015-06-18 05:19:26
● 2026-07-27 04:03:32

●MXmail.rybk.com2015-06-18 → 2026-07-27 · 2 obs

● 2015-06-18 05:19:26
● 2026-07-27 04:03:32

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...	-
rybk.com	dns11.hichina.com, dns12.hichina.com	18 records

✅ Authoritative Response

Server:120.76.107.41

NS records: dns11.hichina.com, dns12.hichina.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for rybk.com (unsigned zone)

⏱️ Timing

Total: 3693ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`dns12.hichina.com, dns11.hichina.com`
MX	1	`mail.rybk.com (pri: 10)`
SOA	1	`dns11.hichina.com hostmaster.hichina.com`

📌 Glue Records Collected

Total: 18

Out-of-bailiwick: 18 (dns11.hichina.com, dns11.hichina.com, dns11.hichina.com...)

Analysis

Hierarchy

rybk.com serves as the parent of mail.rybk.com.

Name Servers

rybk.com is delegated to two name servers: dns11.hichina.com and dns12.hichina.com.

The name server configuration of rybk.com is shared with other domains, for instance tradewin.cn, siyanghui.com, js-sckj.com and two others.

rybk.com has a partial name server overlap with other domains — among them beobeo.cn and llqv.cn.

It is common to see these name servers used together with name servers expirens3.hichina.com and expirens4.hichina.com.

Hosts with 9 IP addresses each:

dns11.hichina.com resolves to 39.96.153.42, 39.96.153.52, 47.118.199.202 and 6 other IP addresses.

dns12.hichina.com resolves to 39.96.153.41, 39.96.153.51, 47.118.199.201 and 6 other IP addresses.

Mail Servers

rybk.com uses one mail server — mail.rybk.com.

mail.rybk.com resolves to a single IP number: 61.136.57.232.