🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`diffrobot.com`

DNSSEC	⚠️ Not signed
A	121.40.19.223^{🇨🇳 Alibaba-Cloud121.40.0.0/15}
NS	`dns19.hichina.com` ⭐
		A	2408:4009:501::27^{🇨🇳 Alibaba-Cloud2408:4009:501::/48}
		A	39.96.153.40^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	39.96.153.60^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	47.118.199.200^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	47.118.199.220^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	120.76.107.40^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	120.76.107.60^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	139.224.142.100^{🇨🇳 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	139.224.142.110^{🇨🇳 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	`dns20.hichina.com`
		A	2408:4009:501::28^{🇨🇳 Alibaba-Cloud2408:4009:501::/48}
		A	39.96.153.38^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	39.96.153.61^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	47.118.199.198^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	47.118.199.222^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	120.76.107.38^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	120.76.107.61^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	139.224.142.98^{🇨🇳 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	139.224.142.108^{🇨🇳 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}
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}
		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	`verification-code-site-App_feishu=9BC7lk5zN15nvqKeK0ga`
TXT	`v=spf1 +include:_netblocks.m.feishu.cn -all`
SOA	`dns19.hichina.com`hostmaster@hichina.com 2026-08-18 #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=1789203333

Same first word

diffrobot.com

Previous names

Next names

DNS History

17 records (6 active, 11 former)

○NSdns1.registrar-servers.com2015-05-07 → 2015-05-07 · 3 obs

● 2015-05-07 00:03:00
○ 2015-09-24 00:43:40
○ 2026-09-12 08:57:16

●NSdns19.hichina.com2017-07-04 → 2026-09-12 · 3 obs

○ 2015-09-24 00:43:40
● 2017-07-04 08:01:36
● 2026-09-12 08:57:16

○NSdns2.registrar-servers.com2015-05-07 → 2015-05-07 · 3 obs

● 2015-05-07 00:03:00
○ 2015-09-24 00:43:40
○ 2026-09-12 08:57:16

●NSdns20.hichina.com2017-07-04 → 2026-09-12 · 3 obs

○ 2015-09-24 00:43:40
● 2017-07-04 08:01:36
● 2026-09-12 08:57:16

○NSdns3.registrar-servers.com2015-05-07 → 2015-05-07 · 3 obs

● 2015-05-07 00:03:00
○ 2015-09-24 00:43:40
○ 2026-09-12 08:57:16

○NSdns4.registrar-servers.com2015-05-07 → 2015-05-07 · 3 obs

● 2015-05-07 00:03:00
○ 2015-09-24 00:43:40
○ 2026-09-12 08:57:16

○NSdns5.registrar-servers.com2015-05-07 → 2015-05-07 · 3 obs

● 2015-05-07 00:03:00
○ 2015-09-24 00:43:40
○ 2026-09-12 08:57:16

○MXeforward1.registrar-servers.com2015-05-07 → 2015-05-07 · 3 obs

● 2015-05-07 00:03:00
○ 2015-09-24 00:43:40
○ 2026-09-12 08:57:16

○MXeforward2.registrar-servers.com2015-05-07 → 2015-05-07 · 3 obs

● 2015-05-07 00:03:00
○ 2015-09-24 00:43:40
○ 2026-09-12 08:57:16

○MXeforward3.registrar-servers.com2015-05-07 → 2015-05-07 · 3 obs

● 2015-05-07 00:03:00
○ 2015-09-24 00:43:40
○ 2026-09-12 08:57:16

○MXeforward4.registrar-servers.com2015-05-07 → 2015-05-07 · 3 obs

● 2015-05-07 00:03:00
○ 2015-09-24 00:43:40
○ 2026-09-12 08:57:16

○MXeforward5.registrar-servers.com2015-05-07 → 2015-05-07 · 3 obs

● 2015-05-07 00:03:00
○ 2015-09-24 00:43:40
○ 2026-09-12 08:57:16

●MXmx1.feishu.cn2026-09-08 → 2026-09-12 · 3 obs

○ 2015-09-24 00:43:40
● 2026-09-08 21:42:32
● 2026-09-12 08:57:16

●MXmx2.feishu.cn2026-09-08 → 2026-09-12 · 3 obs

○ 2015-09-24 00:43:40
● 2026-09-08 21:42:32
● 2026-09-12 08:57:16

●MXmx3.feishu.cn2026-09-08 → 2026-09-12 · 3 obs

○ 2015-09-24 00:43:40
● 2026-09-08 21:42:32
● 2026-09-12 08:57:16

○A104.131.151.292015-05-07 → 2015-05-07 · 3 obs

● 2015-05-07 00:03:00
○ 2015-09-24 00:43:40
○ 2026-09-12 08:57:16

●A121.40.19.2232026-09-08 → 2026-09-12 · 3 obs

○ 2015-09-24 00:43:40
● 2026-09-08 21:42:32
● 2026-09-12 08:57:16

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...	-
diffrobot.com	dns19.hichina.com, dns20.hichina.com	18 records

✅ Authoritative Response

Server:120.76.107.38

NS records: dns19.hichina.com, dns20.hichina.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for diffrobot.com (unsigned zone)

⏱️ Timing

Total: 1104ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`121.40.19.223`
NS	2	`dns20.hichina.com, dns19.hichina.com`
MX	3	`mx1.feishu.cn (pri: 1), mx2.feishu.cn (pri: 5)...`
TXT	2	`v=spf1 +include:_netblocks.m.feishu.cn -, verification-code-site-App_feishu=9BC7lk`
SOA	1	`dns19.hichina.com hostmaster.hichina.com`

📌 Glue Records Collected

Total: 18

Out-of-bailiwick: 18 (dns19.hichina.com, dns19.hichina.com, dns19.hichina.com...)

Analysis

IP Addresses

diffrobot.com resolves to just one IP address, 121.40.19.223.

Two other host names, along with ntc.cn, wekontech.com and topole.net, also share IP numbers with diffrobot.com.

Name Servers

diffrobot.com is served by two delegated name servers, dns19.hichina.com and dns20.hichina.com.

diffrobot.com shares its NS records with other domains, for example wuxiaoyuan.cn, haiguibaba.cn, linearin.com and two others.

The name servers of diffrobot.com overlap at least partially with those of other domains — among them akeeo.com, tunni.cn, mycover.cn and two more.

These name servers commonly appear alongside the name servers expirens3.hichina.com and expirens4.hichina.com.

DNS names with 9 IP addresses:

dns19.hichina.com carries IP addresses 39.96.153.40, 39.96.153.60 and 47.118.199.200, with 6 other addresses beyond those.

dns20.hichina.com carries IP addresses 39.96.153.38, 39.96.153.61 and 47.118.199.198, with 6 other addresses beyond those.

Mail Servers

Mail for diffrobot.com is routed through three mail servers — mx1.feishu.cn, mx2.feishu.cn and mx3.feishu.cn.

There is at least a partial MX overlap between diffrobot.com and other domains, including tatadada.com, litcave.co, axz.ai and two others.

Hostnames that map to three IP numbers:

mx3.feishu.cn resolves to three addresses: 52.220.106.220, 101.126.58.225 and 122.14.229.0.

Host names that have two IP addresses:

mx2.feishu.cn maps to two IP addresses — 101.126.58.225 and 122.14.229.0.

Host names that point to one IP address:

mx1.feishu.cn points to the IP address 52.220.106.220.

These two host names — mx3.feishu.cn and mx1.feishu.cn — each point to 52.220.106.220 IP addresses.

These two host names — mx3.feishu.cn and mx2.feishu.cn — each point to 101.126.58.225 IP addresses.

These two host names — mx3.feishu.cn and mx2.feishu.cn — each point to 122.14.229.0 IP addresses.

diffrobot.com - robtex.com

diffrobot.com

com

Same first word

Previous names

Next names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

IP Addresses

Name Servers

Mail Servers

`diffrobot.com`

`com`