`ycb51.com`

DNSSEC	⚠️ Not signed
NS	`dns9.hichina.com` ⭐
		A	2408:4009:501::17^{🇨🇳 Alibaba-Cloud2408:4009:501::/48}
		A	39.96.153.42^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
			PTR	`ip-39-96-153-42.defastlink.net`
		A	39.96.153.52^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
			PTR	`ip-39-96-153-52.defastlink.net`
		A	47.118.199.202^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
			PTR	`ip-47-118-199-202.defastlink.net`
		A	47.118.199.212^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
			PTR	`ip-47-118-199-212.defastlink.net`
		A	120.76.107.42^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
			PTR	`ip-120-76-107-42.defastlink.net`
		A	120.76.107.52^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
			PTR	`ip-120-76-107-52.defastlink.net`
		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,}
			PTR	`ip-139-224-142-112.defastlink.net`
		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,}
			PTR	`ip-139-224-142-122.defastlink.net`
NS	`dns10.hichina.com`
		A	2408:4009:501::18^{🇨🇳 Alibaba-Cloud2408:4009:501::/48}
		A	39.96.153.41^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
			PTR	`ip-39-96-153-41.defastlink.net`
		A	39.96.153.51^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
			PTR	`ip-39-96-153-51.defastlink.net`
		A	47.118.199.201^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
			PTR	`ip-47-118-199-201.defastlink.net`
		A	47.118.199.211^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
			PTR	`ip-47-118-199-211.defastlink.net`
		A	120.76.107.41^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
			PTR	`ip-120-76-107-41.defastlink.net`
		A	120.76.107.51^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
			PTR	`ip-120-76-107-51.defastlink.net`
		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,}
			PTR	`ip-139-224-142-111.defastlink.net`
		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,}
			PTR	`ip-139-224-142-121.defastlink.net`
MX	`mx1.qiye.aliyun.com` ⭐
		A	47.246.137.47^{🇺🇸 Alibaba-Cloud47.246.136.0/22 Alibaba CLoud}
			PTR	`ip-47-246-137-47.defastlink.net`
MX	`mx2.qiye.aliyun.com`⁽¹⁰⁾
		A	47.246.136.231^{🇺🇸 Alibaba-Cloud47.246.136.0/22 Alibaba CLoud}
			PTR	`cz-clare.com`
			PTR	`reachsmartdwell.com`
			PTR	`wevolt.tech`
MX	`mx3.qiye.aliyun.com`⁽¹⁵⁾
		A	47.246.136.231^{🇺🇸 Alibaba-Cloud47.246.136.0/22 Alibaba CLoud}
			PTR	`cz-clare.com`
			PTR	`reachsmartdwell.com`
			PTR	`wevolt.tech`
		A	47.246.137.47^{🇺🇸 Alibaba-Cloud47.246.136.0/22 Alibaba CLoud}
			PTR	`ip-47-246-137-47.defastlink.net`
TXT	`v=spf1 include:spf.qiye.aliyun.com -all`
SOA	`dns9.hichina.com`hostmaster@hichina.com 2026-01-12 #9

`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

Same first word

ycb51.com

Similar names

51cyb.com

DNS History

8 records (5 active, 3 former)

●NSdns10.hichina.com2016-12-14 → 2026-03-15 · 2 obs

● 2016-12-14 00:55:02
● 2026-03-15 12:36:02

●NSdns9.hichina.com2016-12-14 → 2026-03-15 · 2 obs

● 2016-12-14 00:55:02
● 2026-03-15 12:36:02

●MXmx1.qiye.aliyun.com2026-03-15 → 2026-03-15 · 3 obs

○ 2018-06-19 08:40:56
● 2026-03-15 12:36:00
● 2026-03-15 12:36:02

●MXmx2.qiye.aliyun.com2026-03-15 → 2026-03-15 · 3 obs

○ 2018-06-19 08:40:56
● 2026-03-15 12:36:00
● 2026-03-15 12:36:02

●MXmx3.qiye.aliyun.com2026-03-15 → 2026-03-15 · 3 obs

○ 2018-06-19 08:40:56
● 2026-03-15 12:36:00
● 2026-03-15 12:36:02

○MXmxbiz1.qq.com2016-12-14 → 2018-06-19 · 4 obs

● 2016-12-14 00:55:02
● 2018-06-19 08:40:56
○ 2026-03-15 12:36:00
○ 2026-03-15 12:36:02

○MXmxbiz2.qq.com2016-12-14 → 2018-06-19 · 4 obs

● 2016-12-14 00:55:02
● 2018-06-19 08:40:56
○ 2026-03-15 12:36:00
○ 2026-03-15 12:36:02

○A121.43.154.1482018-06-19 → 2018-06-19 · 3 obs

● 2018-06-19 08:40:56
○ 2026-03-15 12:36:00
○ 2026-03-15 12:36:02

🔍 DNS Trace

Analysis

Name Servers

Two name servers dns10.hichina.com and dns9.hichina.com are delegated to ycb51.com.

ycb51.com uses the same name server configuration as other domains, such as doobuy.net, xstv.com.cn, aquamacro.com, xixianjituan.com and 1024.ink.

ycb51.com shares name servers with other domains at least partially, for instance gciig.com and dxka.com.

Two hosts with nine IPs each:

Host dns10.hichina.com points to 2408:4009:501::18, 39.96.153.41, 39.96.153.51, 47.118.199.201, 47.118.199.211, 120.76.107.41, 120.76.107.51, 139.224.142.111 and 139.224.142.121.

Host dns9.hichina.com points to 2408:4009:501::17, 39.96.153.42, 39.96.153.52, 47.118.199.202, 47.118.199.212, 120.76.107.42, 120.76.107.52, 139.224.142.112 and 139.224.142.122.

Mail Servers

ycb51.com is handled by three mail servers: mx1.qiye.aliyun.com, mx2.qiye.aliyun.com and mx3.qiye.aliyun.com.

ycb51.com shares mail servers with other domains at least in part, for instance flelaser.com, lchome.com, 1yuan.cn, jysdr.com and sports.edu.cn.