`primaopto.com`

DNSSEC	⚠️ Not signed
NS	`ns1.35.net` ⭐
		A	240e:d9:c200::2^{🇨🇳 CHINANET-SCIDC-AS-AP240e:d9:c000::/36 SICHUANIDC province network}
		A	60.247.150.254^{🇨🇳 CHINANET-SCIDC-AS-AP60.247.128.0/18 SICHUANIDC province network}
		A	118.123.249.114^{🇨🇳 CHINANET-SCIDC-AS-AP118.123.240.0/20 CHINANET SiChuan Telecom Internet Data Center}
		A	118.123.253.132^{🇨🇳 CHINANET-SCIDC-AS-AP118.123.240.0/20 CHINANET SiChuan Telecom Internet Data Center}
NS	`ns2.35.net`
		A	240e:d9:c200:1::2^{🇨🇳 CHINANET-SCIDC-AS-AP240e:d9:c000::/36 SICHUANIDC province network}
		A	61.172.183.73^{🇨🇳 SHANGHAITELECOM61.172.182.0/23 SHIDC}
		A	211.149.230.100^{🇨🇳 CHINANET-SCIDC-AS-AP211.149.224.0/19 chinanet SC province network-client}
NS	`ns3.35.net`
		A	61.172.183.77^{🇨🇳 SHANGHAITELECOM61.172.182.0/23 SHIDC}
		A	118.123.249.114^{🇨🇳 CHINANET-SCIDC-AS-AP118.123.240.0/20 CHINANET SiChuan Telecom Internet Data Center}
NS	`ns4.35.net`
		A	118.123.253.132^{🇨🇳 CHINANET-SCIDC-AS-AP118.123.240.0/20 CHINANET SiChuan Telecom Internet Data Center}
		A	211.149.230.100^{🇨🇳 CHINANET-SCIDC-AS-AP211.149.224.0/19 chinanet SC province network-client}
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`⁽²⁰⁾
		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`⁽³⁰⁾
		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`
SOA	`ns1.35.net`dnsconct@myhostadmin.net 2025-05-24 #14

`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=1776257342

Same first word

primaopto.com

Similar names

optimapro.net

optimpora.sk

optimapro.com

aptiompro.com

prooptima.pl

DNS History

10 records (7 active, 3 former)

○NS(root)2015-05-13 → 2017-10-24 · 4 obs

● 2015-05-13 14:04:52
● 2017-10-24 07:28:04
○ 2026-04-05 00:57:10
○ 2026-04-15 12:51:54

●NSns1.35.net2026-04-05 → 2026-04-15 · 3 obs

○ 2017-10-24 07:28:04
● 2026-04-05 00:57:10
● 2026-04-15 12:51:54

●NSns2.35.net2026-04-05 → 2026-04-15 · 3 obs

○ 2017-10-24 07:28:04
● 2026-04-05 00:57:10
● 2026-04-15 12:51:54

●NSns3.35.net2026-04-05 → 2026-04-15 · 3 obs

○ 2017-10-24 07:28:04
● 2026-04-05 00:57:10
● 2026-04-15 12:51:54

●NSns4.35.net2026-04-05 → 2026-04-15 · 3 obs

○ 2017-10-24 07:28:04
● 2026-04-05 00:57:10
● 2026-04-15 12:51:54

○MXmail.primaopto.com2015-05-13 → 2017-10-24 · 4 obs

● 2015-05-13 14:04:52
● 2017-10-24 07:28:04
○ 2026-04-05 00:57:10
○ 2026-04-15 12:51:54

●MXmx1.feishu.cn2026-04-05 → 2026-04-15 · 3 obs

○ 2017-10-24 07:28:04
● 2026-04-05 00:57:10
● 2026-04-15 12:51:54

●MXmx2.feishu.cn2026-04-05 → 2026-04-15 · 3 obs

○ 2017-10-24 07:28:04
● 2026-04-05 00:57:10
● 2026-04-15 12:51:54

●MXmx3.feishu.cn2026-04-05 → 2026-04-15 · 3 obs

○ 2017-10-24 07:28:04
● 2026-04-05 00:57:10
● 2026-04-15 12:51:54

○A202.85.221.2092017-10-24 → 2017-10-24 · 3 obs

● 2017-10-24 07:28:04
○ 2026-04-05 00:57:10
○ 2026-04-15 12:51:54

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	f.gtld-servers.net, g.gtld-servers.net, c.gtld-servers.net, b.gtld-servers.net...	-
primaopto.com	ns3.35.net, ns2.35.net, ns1.35.net, ns4.35.net	-

✅ Authoritative Response

Server:118.123.249.114

NS records: ns3.35.net, ns2.35.net, ns1.35.net, ns4.35.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for primaopto.com (unsigned zone)

⏱️ Timing

Total: 4265ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	4	`ns2.35.net, ns1.35.net...`
MX	3	`mx2.feishu.cn (pri: 20), mx3.feishu.cn (pri: 30)...`
TXT	1	`v=spf1 +include:_netblocks.m.feishu.cn -`
SOA	1	`ns1.35.net dnsconct.myhostadmin.net`

Analysis

Name Servers

primaopto.com is delegated to four name servers: ns1.35.net, ns2.35.net, ns3.35.net and ns4.35.net.

primaopto.com at least partially shares name servers with other domains such as jnv.cn, tzfdc.cn, haoshou.com, jsnj.com and wuxixujia.com.

Four IPs for ns1.35.net: 240e:d9:c200::2, 60.247.150.254, 118.123.249.114 and 118.123.253.132.

Three IPs for ns2.35.net: 240e:d9:c200:1::2, 61.172.183.73 and 211.149.230.100.

Two IPs for ns3.35.net: 61.172.183.77 and 118.123.249.114.

Two IPs for ns4.35.net: 118.123.253.132 and 211.149.230.100.

Names pointing to 118.123.249.114: ns1.35.net and ns3.35.net.

Names pointing to 118.123.253.132: ns1.35.net and ns4.35.net.

Names pointing to 211.149.230.100: ns2.35.net and ns4.35.net.

Mail Servers

primaopto.com is handled by three mail servers: mx1.feishu.cn, mx2.feishu.cn and mx3.feishu.cn.

primaopto.com shares mail servers with other domains at least in part, for instance lishuncdn.com, biosysen.com, mykarry.com, lockin.com and sxlab.net.