`study1.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3033::6815:8b9^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3035::ac43:9dcd^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.8.185^{Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.157.205^{🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`karina.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3ab2^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`karina.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0b2^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`karina.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20b2^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`karina.ns.cloudflare.com`
		A	108.162.192.178^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`karina.ns.cloudflare.com`
		A	172.64.32.178^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`karina.ns.cloudflare.com`
		A	173.245.58.178^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`karina.ns.cloudflare.com`
NS	`lamar.ns.cloudflare.com`
		A	2606:4700:58::a29f:2c8e^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`lamar.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c38e^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`lamar.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:238e^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`lamar.ns.cloudflare.com`
		A	108.162.195.142^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`lamar.ns.cloudflare.com`
		A	162.159.44.142^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`lamar.ns.cloudflare.com`
		A	172.64.35.142^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`lamar.ns.cloudflare.com`
MX	`mx.ym.163.com` ⭐
		A	111.124.200.35^{🇨🇳 CHINANET-Guizhou-Guian-IDC111.124.192.0/19}
TXT	`google-site-verification=kwZUiBTiXKSymieZi4rhSZagzfTVAj4jRHe9hmaOy_8`
TXT	`v=spf1 include:spf.163.com ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.8.185, 172.67.157.205
		IPv6 hints	2606:4700:3033::6815:8b9, 2606:4700:3035::ac43:9dcd
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=11, name=cloudflare-ech.com
SOA	`karina.ns.cloudflare.com`dns@cloudflare.com serial=2402743870

`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=1778590481

Same first word

study1.com

study1.net

study1.cn

study1.de

study1.jp

Similar names

1study.com

1study.net

DNS History

13 records (7 active, 6 former)

●NSkarina.ns.cloudflare.com2026-03-04 → 2026-05-12 · 3 obs

○ 2017-05-12 17:53:46
● 2026-03-04 12:05:20
● 2026-05-12 13:24:16

●NSlamar.ns.cloudflare.com2026-03-04 → 2026-05-12 · 3 obs

○ 2017-05-12 17:53:46
● 2026-03-04 12:05:20
● 2026-05-12 13:24:16

○NSns1.above.com2015-06-07 → 2017-05-12 · 4 obs

● 2015-06-07 01:34:20
● 2017-05-12 17:53:46
○ 2026-03-04 12:05:20
○ 2026-05-12 13:24:16

○NSns2.above.com2015-06-07 → 2017-05-12 · 4 obs

● 2015-06-07 01:34:20
● 2017-05-12 17:53:46
○ 2026-03-04 12:05:20
○ 2026-05-12 13:24:16

○MXmail.post-host.net2015-06-07 → 2016-04-14 · 4 obs

● 2015-06-07 01:34:20
● 2016-04-14 14:18:58
○ 2017-05-12 17:53:46
○ 2026-05-12 13:24:16

●MXmx.ym.163.com2026-03-04 → 2026-05-12 · 3 obs

○ 2017-05-12 17:53:46
● 2026-03-04 12:05:20
● 2026-05-12 13:24:16

○MXmx92.m1bp.com2017-05-12 → 2017-05-12 · 4 obs

○ 2016-04-14 14:18:58
● 2017-05-12 17:53:46
○ 2026-03-04 12:05:20
○ 2026-05-12 13:24:16

○MXmx92.mb5p.com2017-05-12 → 2017-05-12 · 4 obs

○ 2016-04-14 14:18:58
● 2017-05-12 17:53:46
○ 2026-03-04 12:05:20
○ 2026-05-12 13:24:16

○A103.224.182.2422015-06-07 → 2017-05-12 · 4 obs

● 2015-06-07 01:34:20
● 2017-05-12 17:53:46
○ 2026-03-04 12:05:20
○ 2026-05-12 13:24:16

●A104.21.8.1852026-03-04 → 2026-05-12 · 3 obs

○ 2017-05-12 17:53:46
● 2026-03-04 12:05:20
● 2026-05-12 13:24:16

●A172.67.157.2052026-03-04 → 2026-05-12 · 3 obs

○ 2017-05-12 17:53:46
● 2026-03-04 12:05:20
● 2026-05-12 13:24:16

●A2606:4700:3033::6815:8b92026-03-04 → 2026-05-12 · 3 obs

○ 2017-05-12 17:53:46
● 2026-03-04 12:05:20
● 2026-05-12 13:24:16

●A2606:4700:3035::ac43:9dcd2026-03-04 → 2026-05-12 · 3 obs

○ 2017-05-12 17:53:46
● 2026-03-04 12:05:20
● 2026-05-12 13:24:16

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	m.gtld-servers.net, g.gtld-servers.net, a.gtld-servers.net, c.gtld-servers.net...	-
study1.com	karina.ns.cloudflare.com, lamar.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.195.142

NS records: karina.ns.cloudflare.com, lamar.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for study1.com (unsigned zone)

⏱️ Timing

Total: 897ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.8.185, 172.67.157.205`
AAAA	2	`2606:4700:3035::ac43:9dcd, 2606:4700:3033::6815:8b9`
NS	2	`karina.ns.cloudflare.com, lamar.ns.cloudflare.com`
MX	1	`mx.ym.163.com (pri: 5)`
TXT	2	`google-site-verification=kwZUiBTiXKSymie, v=spf1 include:spf.163.com ~all`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`karina.ns.cloudflare.com dns.cloudflare.`

📌 Glue Records Collected

Total: 12

Out-of-bailiwick: 12 (karina.ns.cloudflare.com, karina.ns.cloudflare.com, karina.ns.cloudflare.com...)

Analysis

IP Addresses

study1.com points to four IP numbers: 2606:4700:3033::6815:8b9, 2606:4700:3035::ac43:9dcd, 104.21.8.185 and 172.67.157.205.

For instance, other host names broodsmusic.com, qccy.net, olaandkatie.com, vcs24.mom and thegioingoaihoi.com share IP numbers with study1.com.

Name Servers

study1.com is delegated to two name servers: karina.ns.cloudflare.com and lamar.ns.cloudflare.com.

study1.com uses the same name server setup as other domains such as parksatchehaw.org, scotlandchinese.com, lonese.com, terrabrasilisrestaurant.com and visauk.cn.

study1.com shares name servers with other domains at least partially, for example konfeo.pro, konexx.com, 1799.ws, registriertedokumentes.com and derevo-kazok.org.

These name servers are commonly used together with daniella.ns.cloudflare.com, phoenix.ns.cloudflare.com, ziggy.ns.cloudflare.com and decker.ns.cloudflare.com.

Host names with six IP numbers: host name karina.ns.cloudflare.com points to: 2606:4700:50::adf5:3ab2, 2803:f800:50::6ca2:c0b2, 2a06:98c1:50::ac40:20b2, 108.162.192.178, 172.64.32.178 and 173.245.58.178; host name lamar.ns.cloudflare.com points to: 2606:4700:58::a29f:2c8e, 2803:f800:50::6ca2:c38e, 2a06:98c1:50::ac40:238e, 108.162.195.142, 162.159.44.142 and 172.64.35.142.

Mail Servers

study1.com is handled by a single mail server, mx.ym.163.com.

study1.com shares the same mail server setup as other domains, for instance buybuygood.com, afbx.com, gzrichway.com, seipher.com and 44442.com.

study1.com shares mail servers with other domains at least partially; for instance flyiu.com, toeasytrip.com, seawit.cn, zjghotel.com.cn and chengtop.com.

These mail servers are often used with mxn.mxhichina.com, mxw.mxhichina.com, hzmx02.mxmail.netease.com, hzmx01.mxmail.netease.com, mx1.qiye.aliyun.com, mx2.qiye.aliyun.com and mx3.qiye.aliyun.com.

mx.ym.163.com points to a single IP: 111.124.200.35.

study1.com - robtex.com

study1.com

com

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

IP Addresses

Name Servers

Mail Servers

`study1.com`

`com`