`ybtoptics.com`

DNSSEC	⚠️ Not signed
A	122.114.11.9^{🇨🇳 CHINA169-Backbone122.114.0.0/16 route of Chinaunicomroute of Chinaunicom}
NS	`ns1.dnsnw.com` ⭐
		A	240e:97d:10:1402:0:1:0:1004^{🇨🇳 CHINANET-Guangdong-DongGuan-IDC240e:97d::/36 DongGuan IDC Network}
		A	218.98.111.167^{🇩🇪 HKCICL-AS-AP218.98.111.0/24 HONG KONG COMMUNICATIONS INTERNATIONAL CO.,LIMITED}
NS	`ns.nagor.cn` ⚠️ Not in zone NS records
		A	240e:97d:10:1402:0:1:0:1004^{🇨🇳 CHINANET-Guangdong-DongGuan-IDC240e:97d::/36 DongGuan IDC Network}
		A	218.98.111.167^{🇩🇪 HKCICL-AS-AP218.98.111.0/24 HONG KONG COMMUNICATIONS INTERNATIONAL CO.,LIMITED}
NS	`ns.nagor.com.cn` ⚠️ Not in zone NS records
		A	240e:97d:10:1402:0:1:0:1004^{🇨🇳 CHINANET-Guangdong-DongGuan-IDC240e:97d::/36 DongGuan IDC Network}
		A	183.253.57.212^{🇨🇳 CHINAMOBILE-CN183.253.0.0/16 CMI (Customer Route)}
		A	211.99.99.54^{🇨🇳 DONGGUAN-1211.99.99.0/24 Proxy-registered route object}
NS	`ns2.dnsnw.com`
		A	240e:97d:10:1402:0:1:0:1004^{🇨🇳 CHINANET-Guangdong-DongGuan-IDC240e:97d::/36 DongGuan IDC Network}
		A	183.253.57.212^{🇨🇳 CHINAMOBILE-CN183.253.0.0/16 CMI (Customer Route)}
		A	211.99.99.54^{🇨🇳 DONGGUAN-1211.99.99.0/24 Proxy-registered route object}
MX	`mx403e.chinaemail.cn` ⭐
MX	`mxa403e.chinaemail.cn` ⭐
TXT	`v=spf1 include:spf.chinaemail.cn -all`
SOA	`ns1.dnsnw.com`admin@dnsnw.com serial=1751342647

`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=1774431112

Same first word

ybtoptics.com

DNS History

11 records (7 active, 4 former)

●NSns.nagor.cn2015-12-18 → 2026-03-25 · 6 obs

○ 2015-10-18 15:12:42
● 2015-12-18 23:56:28
● 2016-09-20 11:38:04
○ 2017-05-31 11:15:26
● 2026-02-16 06:51:04
● 2026-03-25 09:40:00

●NSns.nagor.com.cn2015-05-29 → 2026-03-25 · 7 obs

● 2015-05-29 09:24:54
○ 2015-10-18 15:12:42
● 2015-12-18 23:56:28
● 2016-09-20 11:38:04
○ 2017-05-31 11:15:26
● 2026-02-16 06:51:04
● 2026-03-25 09:40:00

●NSns1.dnsnw.com2015-12-18 → 2026-03-25 · 3 obs

○ 2015-10-18 15:12:42
● 2015-12-18 23:56:28
● 2026-03-25 09:40:00

○NSns1.dnsnw.net2015-10-18 → 2015-10-18 · 4 obs

○ 2015-05-29 09:24:54
● 2015-10-18 15:12:42
○ 2015-12-18 23:56:28
○ 2026-03-25 09:40:00

●NSns2.dnsnw.com2015-12-18 → 2026-03-25 · 6 obs

○ 2015-10-18 15:12:42
● 2015-12-18 23:56:28
● 2016-09-20 11:38:04
○ 2017-05-31 11:15:26
● 2026-02-16 06:51:04
● 2026-03-25 09:40:00

○NSns2.dnsnw.net2015-10-18 → 2015-10-18 · 4 obs

○ 2015-05-29 09:24:54
● 2015-10-18 15:12:42
○ 2015-12-18 23:56:28
○ 2026-03-25 09:40:00

●MXmx403e.chinaemail.cn2015-10-18 → 2026-03-25 · 2 obs

● 2015-10-18 15:12:42
● 2026-03-25 09:40:00

●MXmxa403e.chinaemail.cn2015-10-18 → 2026-03-25 · 2 obs

● 2015-10-18 15:12:42
● 2026-03-25 09:40:00

●A122.114.11.92026-02-16 → 2026-03-25 · 3 obs

○ 2017-05-31 11:15:26
● 2026-02-16 06:51:04
● 2026-03-25 09:40:00

○A180.86.155.252015-05-29 → 2016-09-20 · 4 obs

● 2015-05-29 09:24:54
● 2016-09-20 11:38:04
○ 2017-05-31 11:15:26
○ 2026-03-25 09:40:00

○CNAMEurl.nawang.cn2017-05-31 → 2026-02-16 · 4 obs

● 2017-05-31 11:15:26
● 2026-02-16 06:51:04
○ 2026-03-25 09:39:58
○ 2026-03-25 09:40:00

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	j.gtld-servers.net, f.gtld-servers.net, g.gtld-servers.net, h.gtld-servers.net...	-
ybtoptics.com	ns.nagor.cn, ns.nagor.com.cn, ns1.dnsnw.com, ns2.dnsnw.com	5 records

✅ Authoritative Response

Server:183.253.57.212

NS records: ns.nagor.cn, ns.nagor.com.cn, ns1.dnsnw.com, ns2.dnsnw.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for ybtoptics.com (unsigned zone)

⏱️ Timing

Total: 1690ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`122.114.11.9`
NS	2	`ns1.dnsnw.com, ns2.dnsnw.com`
MX	2	`mxa403e.chinaemail.cn (pri: 5), mx403e.chinaemail.cn (pri: 5)`
TXT	1	`v=spf1 include:spf.chinaemail.cn -all`
SOA	1	`ns1.dnsnw.com admin.dnsnw.com`

📌 Glue Records Collected

Total: 5

Out-of-bailiwick: 5 (ns1.dnsnw.com, ns1.dnsnw.com, ns2.dnsnw.com...)

Analysis

IP Addresses

ybtoptics.com resolves to a single IP: 122.114.11.9.

Other host names, for instance bsysbio.com, syspjc.com, www.bsysbio.com, symhbg.com and zlhr.net share IP numbers with ybtoptics.com.

Name Servers

ybtoptics.com is delegated to four name servers: ns.nagor.cn, ns1.dnsnw.com, ns2.dnsnw.com and ns.nagor.com.cn.

ybtoptics.com shares some name servers with other domains, for example xn--3bs933czqbe54e.com, 8dota.cn, se-ns.cn, bfcars.cn and 545365.cn.

Host names with three IP numbers:

The host name ns2.dnsnw.com points to 240e:97d:10:1402:0:1:0:1004, 183.253.57.212 and 211.99.99.54.

The host name ns.nagor.com.cn points to 240e:97d:10:1402:0:1:0:1004, 183.253.57.212 and 211.99.99.54.

Host names with two IP numbers:

The host name ns.nagor.cn points to 240e:97d:10:1402:0:1:0:1004 and 218.98.111.167.

The host name ns1.dnsnw.com points to 240e:97d:10:1402:0:1:0:1004 and 218.98.111.167.

Host names pointing to 240e:97d:10:1402:0:1:0:1004:

ns2.dnsnw.com, ns.nagor.com.cn, ns.nagor.cn and ns1.dnsnw.com.

Host names pointing to 183.253.57.212:

ns2.dnsnw.com and ns.nagor.com.cn.

Host names pointing to 211.99.99.54:

ns2.dnsnw.com and ns.nagor.com.cn.

Host names pointing to 218.98.111.167:

ns.nagor.cn and ns1.dnsnw.com.

Mail Servers

ybtoptics.com is served by two mail servers: mx403e.chinaemail.cn and mxa403e.chinaemail.cn.

ybtoptics.com shares the mail server setup with other domains, for example hkgec.com, cnwld.com, donshan.com, shsunto.com and qzshinetex.com.

ybtoptics.com shares mail servers with other domains at least partially, for example einolda.com, fairyware.net, tosailchem.com and tombo-shovel.com.

ybtoptics.com - robtex.com

ybtoptics.com

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