`sinavr.com`

DNSSEC	⚠️ Not signed
A	8.140.58.56^{🇨🇳 Alibaba-Cloud8.140.0.0/15 Alibaba.com Singapore E-Commerce Private Limited 8 Shenton Way, 45-01 AXA Tower, Singapore 068811}
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}
		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	`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}
		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	`mx1.feishu.cn` ⭐
		A	52.220.106.220^{🇸🇬 Amazon52.220.0.0/15 SIN prefix}
			PTR	`ec2-52-220-106-220.ap-southeast-1.compute.amazonaws.com`
MX	`mx2.feishu.cn`⁽⁵⁾
		A	101.126.58.225^{🇨🇳 VOLCANO-ENGINE101.126.56.0/21 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District,}
		A	122.14.229.0^{🇨🇳 CHINAMOBILE-CN122.14.224.0/20}
MX	`mx3.feishu.cn`⁽¹⁰⁾
		A	52.220.106.220^{🇸🇬 Amazon52.220.0.0/15 SIN prefix}
			PTR	`ec2-52-220-106-220.ap-southeast-1.compute.amazonaws.com`
		A	101.126.58.225^{🇨🇳 VOLCANO-ENGINE101.126.56.0/21 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District,}
		A	122.14.229.0^{🇨🇳 CHINAMOBILE-CN122.14.224.0/20}
TXT	`v=spf1 +include:_netblocks.m.feishu.cn -all`
TXT	`verification-code-site-App_feishu=hygdwEZRuzxCiHUbusKg`
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=1784960772

Same first word

sinavr.com

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DNS History

6 records (6 active, 0 former)

●NSdns10.hichina.com2026-07-01 → 2026-07-25 · 2 obs

● 2026-07-01 02:09:58
● 2026-07-25 06:40:18

●NSdns9.hichina.com2026-07-01 → 2026-07-25 · 2 obs

● 2026-07-01 02:09:58
● 2026-07-25 06:40:18

●MXmx1.feishu.cn2026-07-01 → 2026-07-25 · 2 obs

● 2026-07-01 02:09:58
● 2026-07-25 06:40:18

●MXmx2.feishu.cn2026-07-01 → 2026-07-25 · 2 obs

● 2026-07-01 02:09:58
● 2026-07-25 06:40:18

●MXmx3.feishu.cn2026-07-01 → 2026-07-25 · 2 obs

● 2026-07-01 02:09:58
● 2026-07-25 06:40:18

●A8.140.58.562026-07-01 → 2026-07-25 · 2 obs

● 2026-07-01 02:09:58
● 2026-07-25 06:40:18

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	g.gtld-servers.net, a.gtld-servers.net, c.gtld-servers.net, e.gtld-servers.net...	-
sinavr.com	dns9.hichina.com, dns10.hichina.com	18 records

✅ Authoritative Response

Server:120.76.107.41

NS records: dns9.hichina.com, dns10.hichina.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for sinavr.com (unsigned zone)

⏱️ Timing

Total: 834ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`8.140.58.56`
NS	2	`dns9.hichina.com, dns10.hichina.com`
MX	3	`mx1.feishu.cn (pri: 1), mx3.feishu.cn (pri: 10)...`
TXT	2	`verification-code-site-App_feishu=hygdwE, v=spf1 +include:_netblocks.m.feishu.cn -`
SOA	1	`dns9.hichina.com hostmaster.hichina.com`

📌 Glue Records Collected

Total: 18

Out-of-bailiwick: 18 (dns9.hichina.com, dns9.hichina.com, dns9.hichina.com...)

Analysis

IP Addresses

sinavr.com resolves to one IP address: 8.140.58.56.

Name Servers

sinavr.com has two authoritative name servers — dns10.hichina.com and dns9.hichina.com.

sinavr.com uses the same name servers as several other domains — among them entrongmed.com, xn--54q314bvkc7u7e.com, cdrnb.net and two more.

At least some of sinavr.com's name servers are shared with other domains, for example cepe.co, kdmans.com, chuanbaolin.com and two more.

These name servers are often deployed together with the name servers expirens3.hichina.com, expirens4.hichina.com, ns1.alidns.com and ns2.alidns.com.

Hostnames that resolve to 9 IP addresses:

dns10.hichina.com points to 39.96.153.41, 39.96.153.51, 47.118.199.201 and 6 other IP addresses.

dns9.hichina.com points to 39.96.153.42, 39.96.153.52, 47.118.199.202 and 6 other IP addresses.

Mail Servers

The MX records for sinavr.com list three mail servers: mx1.feishu.cn, mx2.feishu.cn and mx3.feishu.cn.

sinavr.com has at least partial mail server overlap with other domains such as tie520.com, xinglianhealth.com, kuaikuaichuhai.com and two more.

Hostnames that resolve to three IP addresses:

mx3.feishu.cn resolves to 52.220.106.220, 101.126.58.225 and 122.14.229.0.

Hostnames that resolve to two IP addresses:

mx2.feishu.cn resolves to 101.126.58.225 and 122.14.229.0.

Hosts with just one IP address:

mx1.feishu.cn resolves to 52.220.106.220.

The host names mx3.feishu.cn and mx1.feishu.cn both resolve to 52.220.106.220 IP addresses.

The host names mx3.feishu.cn and mx2.feishu.cn both resolve to 101.126.58.225 IP addresses.

The host names mx3.feishu.cn and mx2.feishu.cn both resolve to 122.14.229.0 IP addresses.

sinavr.com - robtex.com

sinavr.com

com

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

IP Addresses

Name Servers

Mail Servers

`sinavr.com`

`com`