🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`study31.com`

	DNSSEC	⚠️ Not signed
	NS	`ns15.xincache.com` ⭐
	NS	`ns16.xincache.com`
	SOA	`ns15.xincache.com`enterprise1dnsadmin@dnspod.com serial=1606097051

`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=1794589026

Same first word

study31.com

Similar names

31study.com

study13.fr

31study.cn

DNS History

4 records (2 active, 2 former)

○NSns11.xincache.com2016-06-26 → 2016-06-26 · 3 obs

● 2016-06-26 18:25:32
○ 2017-03-13 18:55:20
○ 2026-11-13 17:12:10

○NSns12.xincache.com2016-06-26 → 2016-06-26 · 3 obs

● 2016-06-26 18:25:32
○ 2017-03-13 18:55:20
○ 2026-11-13 17:12:10

●NSns15.xincache.com2017-03-13 → 2026-11-13 · 3 obs

○ 2016-06-26 18:25:32
● 2017-03-13 18:55:20
● 2026-11-13 17:12:10

●NSns16.xincache.com2017-03-13 → 2026-11-13 · 3 obs

○ 2016-06-26 18:25:32
● 2017-03-13 18:55:20
● 2026-11-13 17:12:10

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
study31.com	ns15.xincache.com, ns16.xincache.com	12 records

✅ Authoritative Response

Server:1.12.0.4

NS records: ns15.xincache.com, ns16.xincache.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

Root DNSKEY fetch failed: Error: connect EADDRNOTAVAIL 198.41.0.4:53 - Local (0.0.0.0:0)

⏱️ Timing

Total: 176ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`ns15.xincache.com, ns16.xincache.com`
SOA	1	`ns15.xincache.com enterprise1dnsadmin.dn`

📌 Glue Records Collected

Total: 12

Out-of-bailiwick: 12 (ns15.xincache.com, ns15.xincache.com, ns15.xincache.com...)

Analysis

Name Servers

study31.com is served by two delegated name servers, ns15.xincache.com and ns16.xincache.com.

study31.com - robtex.com

study31.com

com