`61learn.com`

DNSSEC	⚠️ Not signed
A	39.108.186.31^{🇨🇳 Alibaba-Cloud39.108.128.0/17}
NS	`ns11.xincache.com` ⭐
		A	2402:4e00:1470:2::e^{🇨🇳 TENCENT-NET-AP2402:4e00:1400::/40}
		A	2402:4e00:1730::e^{🇨🇳 TENCENT-NET-AP2402:4e00:1700::/40}
		A	1.12.0.4^{🇨🇳 TENCENT-NET-AP-CN1.12.0.0/20 ZL-IDC-BOM}
		A	36.155.149.180^{🇨🇳 CMNET-Jiangsu-AP36.155.144.0/21 CMI (Customer Route)}
		A	112.80.181.45^{🇨🇳 CHINA169-Backbone112.80.0.0/13 China Unicom CHINA169 Jiangsu Province Network}
		A	117.89.178.173^{🇨🇳 ChinaNet-NANJING-JISHAN-IDC117.89.176.0/21 JS-CT NJ-JS-IDC}
		A	125.94.59.210^{🇨🇳 CHINANET-BACKBONE125.88.0.0/13 chinanet Guangdong network}
		A	129.211.176.209^{🇨🇳 TENCENT-NET-AP129.211.176.0/20}
NS	`ns12.xincache.com`
		A	2402:4e00:111:fff::c^{🇨🇳 TENCENT-NET-AP2402:4e00::/35}
		A	1.12.0.1^{🇨🇳 TENCENT-NET-AP-CN1.12.0.0/20 ZL-IDC-BOM}
		A	36.155.149.176^{🇨🇳 CMNET-Jiangsu-AP36.155.144.0/21 CMI (Customer Route)}
		A	112.80.181.111^{🇨🇳 CHINA169-Backbone112.80.0.0/13 China Unicom CHINA169 Jiangsu Province Network}
		A	117.89.178.184^{🇨🇳 ChinaNet-NANJING-JISHAN-IDC117.89.176.0/21 JS-CT NJ-JS-IDC}
		A	129.211.176.239^{🇨🇳 TENCENT-NET-AP129.211.176.0/20}
		A	163.177.5.23^{🇨🇳 UNICOM-GuangZhou-IDC163.177.5.0/24}
MX	`mxdomain.qq.com` ⭐
SOA	`ns11.xincache.com`ns12@xincache.com serial=1593399453

`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=1784946282

Subdomains

bbs.61learn.com

www.61learn.com

Same first word

61learn.com

61learn.net

DNS History

8 records (4 active, 4 former)

●NSns11.xincache.com2015-07-16 → 2026-07-25 · 5 obs

● 2015-07-16 05:47:30
○ 2015-12-16 02:48:36
○ 2017-06-14 10:25:30
● 2026-02-25 07:13:14
● 2026-07-25 02:33:46

●NSns12.xincache.com2015-07-16 → 2026-07-25 · 5 obs

● 2015-07-16 05:47:30
○ 2015-12-16 02:48:36
○ 2017-06-14 10:25:30
● 2026-02-25 07:13:14
● 2026-07-25 02:33:46

○NSns17.xincache.com2015-12-16 → 2017-06-14 · 5 obs

○ 2015-07-16 05:47:30
● 2015-12-16 02:48:36
● 2017-06-14 10:25:30
○ 2026-02-25 07:13:14
○ 2026-07-25 02:33:46

○NSns18.xincache.com2015-12-16 → 2017-06-14 · 5 obs

○ 2015-07-16 05:47:30
● 2015-12-16 02:48:36
● 2017-06-14 10:25:30
○ 2026-02-25 07:13:14
○ 2026-07-25 02:33:46

●MXmxdomain.qq.com2015-07-16 → 2026-07-25 · 2 obs

● 2015-07-16 05:47:30
● 2026-07-25 02:33:46

○A211.147.247.1122016-07-26 → 2017-06-14 · 5 obs

○ 2015-12-16 02:48:36
● 2016-07-26 14:57:34
● 2017-06-14 10:25:30
○ 2026-02-25 07:13:14
○ 2026-07-25 02:33:46

○A211.147.251.1612015-07-16 → 2015-12-16 · 4 obs

● 2015-07-16 05:47:30
● 2015-12-16 02:48:36
○ 2016-07-26 14:57:34
○ 2026-07-25 02:33:46

●A39.108.186.312026-02-25 → 2026-07-25 · 3 obs

○ 2017-06-14 10:25:30
● 2026-02-25 07:13:14
● 2026-07-25 02:33:46

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...	-
61learn.com	ns11.xincache.com, ns12.xincache.com	12 records

✅ Authoritative Response

Server:1.12.0.1

NS records: ns11.xincache.com, ns12.xincache.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for 61learn.com (unsigned zone)

⏱️ Timing

Total: 189ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`39.108.186.31`
NS	2	`ns12.xincache.com, ns11.xincache.com`
MX	1	`mxdomain.qq.com (pri: 10)`
SOA	1	`ns11.xincache.com ns12.xincache.com`

📌 Glue Records Collected

Total: 12

Out-of-bailiwick: 12 (ns11.xincache.com, ns11.xincache.com, ns11.xincache.com...)

Analysis

Hierarchy

61learn.com is the parent domain of bbs.61learn.com and www.61learn.com.

IP Addresses

61learn.com points to a single IP number: 39.108.186.31.

Further host names like bbs.61learn.com and www.61learn.com overlap in IP numbers with 61learn.com.

Name Servers

61learn.com uses two name servers for its delegation: ns11.xincache.com and ns12.xincache.com.

61learn.com shares its name server setup with other domains, including bbdsz.com, batterysysx.com, 1718w.cn and two others.

There is at least partial name server overlap between 61learn.com and other domains — hxjdjz.cn, lkbp.com, hfqd.com and two more among them.

These name servers regularly appear alongside ce1.xincache.com, ce2.xincache.com, ns15.xincache.com and 7 other name servers in NS record sets.

Host names with 8 IP numbers:

Hostname ns11.xincache.com directs to 1.12.0.4, 36.155.149.180 and 112.80.181.45 along with 5 other IP addresses.

Host names with 7 IP numbers:

Hostname ns12.xincache.com directs to 1.12.0.1, 36.155.149.176 and 112.80.181.111 along with 4 other IP addresses.

Mail Servers

61learn.com has one mail server: mxdomain.qq.com.

61learn.com shares the same mail server setup as other domains, including catmentos.com, moonex.com, winnerkey.com and two others.

61learn.com shares mail servers — at least in part — with other domains, including scphos.com, chainpharm.com, vicgear.com and two others.

These mail servers are routinely seen in conjunction with the mail servers mxn.mxhichina.com and mxw.mxhichina.com.

61learn.com - robtex.com

61learn.com

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