opencpu.com - dns.ninja

`opencpu.com`

DNSSEC	⚠️ Not signed
A	121.196.202.49^{🇨🇳 Alibaba-Cloud121.196.0.0/16}
NS	`dns25.hichina.com` ⭐
		A	2408:4009:501::33^{🇨🇳 Alibaba-Cloud2408:4009:501::/48}
		A	39.96.153.39^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	39.96.153.59^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	47.118.199.199^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	47.118.199.219^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	120.76.107.39^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	120.76.107.59^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	139.224.142.99^{🇨🇳 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	139.224.142.109^{🇨🇳 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	`dns26.hichina.com`
		A	2408:4009:501::34^{🇨🇳 Alibaba-Cloud2408:4009:501::/48}
		A	39.96.153.37^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	39.96.153.62^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	47.118.199.197^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	47.118.199.221^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	120.76.107.37^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	120.76.107.62^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	139.224.142.102^{🇨🇳 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	139.224.142.107^{🇨🇳 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	`mx2.zoho.com` ⭐
		A	136.143.183.44^{🇺🇸 ZohoAS136.143.182.0/23 Zoho}
			PTR	`mx2.zoho.com`
			PTR	`mx3.zoho.com`
			PTR	`mx.zoho.com`
			PTR	`mx2.zohomail.com`
			PTR	`mx3.zohomail.com`
			PTR	`mx.zohomail.com`
MX	`mx3.zoho.com`⁽²⁰⁾
		A	204.141.43.44^{🇺🇸 ZohoAS204.141.42.0/23 Zoho Corporation}
			PTR	`mx2.zoho.com`
			PTR	`mx3.zoho.com`
			PTR	`mx6.zoho.com`
			PTR	`mx7.zoho.com`
			PTR	`mx8.zoho.com`
			PTR	`mx.zoho.com`
			PTR	`mx2.zohomail.com`
			PTR	`mx3.zohomail.com`
			PTR	`mx.zohomail.com`
MX	`mx.zoho.com`⁽⁵⁰⁾
		A	204.141.43.44^{🇺🇸 ZohoAS204.141.42.0/23 Zoho Corporation}
			PTR	`mx2.zoho.com`
			PTR	`mx3.zoho.com`
			PTR	`mx6.zoho.com`
			PTR	`mx7.zoho.com`
			PTR	`mx8.zoho.com`
			PTR	`mx.zoho.com`
			PTR	`mx2.zohomail.com`
			PTR	`mx3.zohomail.com`
			PTR	`mx.zohomail.com`
TXT	`v=spf1 include:zoho.com ~all`
SOA	`dns25.hichina.com`hostmaster@hichina.com 2026-05-28 #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=1786169054

Subdomains

www.opencpu.com

Same first word

opencpu.github.io

opencpu.com

opencpu.org

Similar names

opencup.com

cuppone.com

opencup.net

opencup.vn

econpup.com

opencup.it

cuppone.ru

opencup.ru

opencup.gov.it

opencup.org

DNS History

12 records (6 active, 6 former)

●NSdns25.hichina.com2026-03-07 → 2026-08-08 · 3 obs

○ 2017-02-05 03:55:28
● 2026-03-07 06:02:38
● 2026-08-08 06:16:30

●NSdns26.hichina.com2026-03-07 → 2026-08-08 · 3 obs

○ 2017-02-05 03:55:28
● 2026-03-07 06:02:38
● 2026-08-08 06:16:30

○NSns61.domaincontrol.com2015-08-06 → 2017-02-05 · 4 obs

● 2015-08-06 10:17:56
● 2017-02-05 03:55:28
○ 2026-03-07 06:02:38
○ 2026-08-08 06:16:30

○NSns62.domaincontrol.com2015-08-06 → 2017-02-05 · 4 obs

● 2015-08-06 10:17:56
● 2017-02-05 03:55:28
○ 2026-03-07 06:02:38
○ 2026-08-08 06:16:30

●MXmx.zoho.com2026-03-07 → 2026-08-08 · 3 obs

○ 2017-02-05 03:55:28
● 2026-03-07 06:02:38
● 2026-08-08 06:16:30

●MXmx2.zoho.com2026-03-07 → 2026-08-08 · 3 obs

○ 2017-02-05 03:55:28
● 2026-03-07 06:02:38
● 2026-08-08 06:16:30

●MXmx3.zoho.com2026-03-07 → 2026-08-08 · 3 obs

○ 2017-02-05 03:55:28
● 2026-03-07 06:02:38
● 2026-08-08 06:16:30

○MXmxbiz1.qq.com2015-08-06 → 2017-02-05 · 4 obs

● 2015-08-06 10:17:56
● 2017-02-05 03:55:28
○ 2026-03-07 06:02:38
○ 2026-08-08 06:16:30

○MXmxbiz2.qq.com2015-08-06 → 2017-02-05 · 4 obs

● 2015-08-06 10:17:56
● 2017-02-05 03:55:28
○ 2026-03-07 06:02:38
○ 2026-08-08 06:16:30

○A104.168.141.802017-02-05 → 2017-02-05 · 4 obs

○ 2016-06-25 01:18:00
● 2017-02-05 03:55:28
○ 2026-03-07 06:02:38
○ 2026-08-08 06:16:30

●A121.196.202.492026-03-07 → 2026-08-08 · 3 obs

○ 2017-02-05 03:55:28
● 2026-03-07 06:02:38
● 2026-08-08 06:16:30

○A216.34.181.972015-08-06 → 2016-06-25 · 4 obs

● 2015-08-06 10:17:56
● 2016-06-25 01:18:00
○ 2017-02-05 03:55:28
○ 2026-08-08 06:16:30

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	h.gtld-servers.net, m.gtld-servers.net, a.gtld-servers.net, i.gtld-servers.net...	-
opencpu.com	dns25.hichina.com, dns26.hichina.com	18 records

✅ Authoritative Response

Server:2408:4009:501::34

NS records: dns25.hichina.com, dns26.hichina.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for opencpu.com (unsigned zone)

⏱️ Timing

Total: 2554ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`121.196.202.49`
NS	2	`dns25.hichina.com, dns26.hichina.com`
MX	3	`mx.zoho.com (pri: 10), mx3.zoho.com (pri: 50)...`
TXT	1	`v=spf1 include:zoho.com ~all`
SOA	1	`dns25.hichina.com hostmaster.hichina.com`

📌 Glue Records Collected

Total: 18

Out-of-bailiwick: 18 (dns25.hichina.com, dns25.hichina.com, dns25.hichina.com...)

Analysis

Hierarchy

www.opencpu.com is delegated beneath opencpu.com.

IP Addresses

opencpu.com has exactly one IP address — 121.196.202.49.

Further host names like ffsoft.com and www.opencpu.com overlap in IP numbers with opencpu.com.

Name Servers

The NS records for opencpu.com delegate to dns25.hichina.com and dns26.hichina.com.

The name server configuration of opencpu.com is shared with other domains, for instance zjhtoa.com, nonue.com, 335376.cn and two others.

opencpu.com and other domains like miraia.net share at least a portion of their name servers.

Hosts with 9 IP addresses each:

dns25.hichina.com maps to 39.96.153.39, 39.96.153.59, 47.118.199.199 and 6 additional IP addresses.

dns26.hichina.com maps to 39.96.153.37, 39.96.153.62, 47.118.199.197 and 6 additional IP addresses.

Mail Servers

Incoming mail for opencpu.com is delivered via three mail servers: mx2.zoho.com, mx3.zoho.com and mx.zoho.com.

At least some of the mail servers used by opencpu.com are shared with other domains: anamariaoliva.es, divvan.com, herbalremediesadvice.org and two others among them.

All three hosts carry a single IP: mx2.zoho.com directs to 136.143.183.44, while mx3.zoho.com and mx.zoho.com both direct to 204.141.43.44.

mx3.zoho.com and mx.zoho.com each have 204.141.43.44 IP addresses.