studyforchina.com - dns.ninja

studyforchina.com

DNSSEC⚠️ Not signed
A2606:4700:3035::6815:4ec9🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3037::ac43:8970🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.78.201Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.137.112🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSotto.ns.cloudflare.com ⭐
A2606:4700:58::a29f:2c87🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRotto.ns.cloudflare.com
A2803:f800:50::6ca2:c387🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRotto.ns.cloudflare.com
A2a06:98c1:50::ac40:2387🇺🇸 Cloudflare2a06:98c1:50::/45
PTRotto.ns.cloudflare.com
A108.162.195.135🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRotto.ns.cloudflare.com
A162.159.44.135Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRotto.ns.cloudflare.com
A172.64.35.135🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRotto.ns.cloudflare.com
NSrosemary.ns.cloudflare.com
A2606:4700:50::a29f:264d🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRrosemary.ns.cloudflare.com
A2803:f800:50::6ca2:c24d🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRrosemary.ns.cloudflare.com
A2a06:98c1:50::ac40:224d🇺🇸 Cloudflare2a06:98c1:50::/45
PTRrosemary.ns.cloudflare.com
A108.162.194.77🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRrosemary.ns.cloudflare.com
A162.159.38.77Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRrosemary.ns.cloudflare.com
A172.64.34.77🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRrosemary.ns.cloudflare.com
MXmxbiz1.qq.com ⭐
MXmxbiz2.qq.com(10)
TXTv=spf1 ~all
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.78.201, 172.67.137.112
IPv6 hints2606:4700:3035::6815:4ec9, 2606:4700:3037::ac43:8970
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=98, name=cloudflare-ech.com
SOAotto.ns.cloudflare.comdns@cloudflare.com serial=2412225714

com

DNSSEC🔒 Signed (DS record present)
NSa.gtld-servers.net ⭐
NSb.gtld-servers.net
NSc.gtld-servers.net
NSd.gtld-servers.net
NSe.gtld-servers.net
NSf.gtld-servers.net
NSg.gtld-servers.net
NSh.gtld-servers.net
NSi.gtld-servers.net
NSj.gtld-servers.net
NSk.gtld-servers.net
NSl.gtld-servers.net
NSm.gtld-servers.net
SOAa.gtld-servers.netnstld@verisign-grs.com serial=1786753224

Same first word

studyforchina.com

DNS History

20 records (8 active, 12 former)

201820192020202120222023202420252026NSotto.ns.cloudflare.comrosemary.ns.cloudflare.comdns1.registrar-servers.comdns2.registrar-servers.comMXmxbiz1.qq.commxbiz2.qq.comeforward1.registrar-servers.comeforward2.registrar-servers.comeforward3.registrar-servers.comeforward4.registrar-servers.comeforward5.registrar-servers.comA104.21.78.201172.67.137.1122606:4700:3035::6815:4ec92606:4700:3037::ac43:8970162.255.119.248188.114.96.0188.114.97.02a06:98c1:3120::2a06:98c1:3121::
○NSdns1.registrar-servers.com2017-01-28 → 2017-01-28 · 3 obs
● 2017-01-28 23:59:14
○ 2018-07-08 04:47:44
○ 2026-08-15 00:21:20
○NSdns2.registrar-servers.com2017-01-28 → 2017-01-28 · 3 obs
● 2017-01-28 23:59:14
○ 2018-07-08 04:47:44
○ 2026-08-15 00:21:20
●NSotto.ns.cloudflare.com2026-08-14 → 2026-08-15 · 3 obs
○ 2018-07-08 04:47:44
● 2026-08-14 21:23:38
● 2026-08-15 00:21:20
●NSrosemary.ns.cloudflare.com2026-08-14 → 2026-08-15 · 3 obs
○ 2018-07-08 04:47:44
● 2026-08-14 21:23:38
● 2026-08-15 00:21:20
○MXeforward1.registrar-servers.com2017-01-28 → 2017-01-28 · 3 obs
● 2017-01-28 23:59:14
○ 2018-07-08 04:47:44
○ 2026-08-15 00:21:20
○MXeforward2.registrar-servers.com2017-01-28 → 2017-01-28 · 3 obs
● 2017-01-28 23:59:14
○ 2018-07-08 04:47:44
○ 2026-08-15 00:21:20
○MXeforward3.registrar-servers.com2017-01-28 → 2017-01-28 · 3 obs
● 2017-01-28 23:59:14
○ 2018-07-08 04:47:44
○ 2026-08-15 00:21:20
○MXeforward4.registrar-servers.com2017-01-28 → 2017-01-28 · 3 obs
● 2017-01-28 23:59:14
○ 2018-07-08 04:47:44
○ 2026-08-15 00:21:20
○MXeforward5.registrar-servers.com2017-01-28 → 2017-01-28 · 3 obs
● 2017-01-28 23:59:14
○ 2018-07-08 04:47:44
○ 2026-08-15 00:21:20
●MXmxbiz1.qq.com2026-08-14 → 2026-08-15 · 3 obs
○ 2018-07-08 04:47:44
● 2026-08-14 21:23:38
● 2026-08-15 00:21:20
●MXmxbiz2.qq.com2026-08-14 → 2026-08-15 · 3 obs
○ 2018-07-08 04:47:44
● 2026-08-14 21:23:38
● 2026-08-15 00:21:20
●A104.21.78.2012026-08-15 → 2026-08-15 · 2 obs
○ 2026-08-14 21:23:38
● 2026-08-15 00:21:20
○A162.255.119.2482017-01-28 → 2017-01-28 · 3 obs
● 2017-01-28 23:59:14
○ 2018-07-08 04:47:44
○ 2026-08-15 00:21:20
●A172.67.137.1122026-08-15 → 2026-08-15 · 2 obs
○ 2026-08-14 21:23:38
● 2026-08-15 00:21:20
○A188.114.96.02026-08-14 → 2026-08-14 · 3 obs
○ 2018-07-08 04:47:44
● 2026-08-14 21:23:38
○ 2026-08-15 00:21:20
○A188.114.97.02026-08-14 → 2026-08-14 · 3 obs
○ 2018-07-08 04:47:44
● 2026-08-14 21:23:38
○ 2026-08-15 00:21:20
●A2606:4700:3035::6815:4ec92026-08-15 → 2026-08-15 · 2 obs
○ 2026-08-14 21:23:38
● 2026-08-15 00:21:20
●A2606:4700:3037::ac43:89702026-08-15 → 2026-08-15 · 2 obs
○ 2026-08-14 21:23:38
● 2026-08-15 00:21:20
○A2a06:98c1:3120::2026-08-14 → 2026-08-14 · 3 obs
○ 2018-07-08 04:47:44
● 2026-08-14 21:23:38
○ 2026-08-15 00:21:20
○A2a06:98c1:3121::2026-08-14 → 2026-08-14 · 3 obs
○ 2018-07-08 04:47:44
● 2026-08-14 21:23:38
○ 2026-08-15 00:21:20

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coma.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...-
studyforchina.comrosemary.ns.cloudflare.com, otto.ns.cloudflare.com12 records

✅ Authoritative Response

Server:108.162.194.77

NS records: rosemary.ns.cloudflare.com, otto.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for studyforchina.com (unsigned zone)

⏱️ Timing

Total: 168ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.137.112, 104.21.78.201
AAAA22606:4700:3035::6815:4ec9, 2606:4700:3037::ac43:8970
NS2otto.ns.cloudflare.com, rosemary.ns.cloudflare.com
MX2mxbiz2.qq.com (pri: 10), mxbiz1.qq.com (pri: 5)
TXT1v=spf1 ~all
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1otto.ns.cloudflare.com dns.cloudflare.co

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

studyforchina.com directs to four IP numbers, which are 104.21.78.201, 172.67.137.112, 2606:4700:3035::6815:4ec9 and 2606:4700:3037::ac43:8970.

Among the host names that share IP numbers with studyforchina.com are mail.karnalyte.org, www.isbnservices.com, athenagroup.capital and two others.

Name Servers

The NS records for studyforchina.com delegate to otto.ns.cloudflare.com and rosemary.ns.cloudflare.com.

studyforchina.com has the same name server delegation as a number of other domains, such as jofogas.cam, klarnia.com, walnnart.com and two more.

At least some of studyforchina.com's name servers are shared with other domains, for example howtostopsmoking.co.uk, montazh161.ru, forynalivexo.com and two more.

These name servers tend to be deployed in combination with the name servers lilyana.ns.cloudflare.com and kehlani.ns.cloudflare.com.

Host names resolving to 6 IP numbers:

otto.ns.cloudflare.com maps to 108.162.195.135, 162.159.44.135, 172.64.35.135 and 3 additional IP addresses.

rosemary.ns.cloudflare.com maps to 108.162.194.77, 162.159.38.77, 172.64.34.77 and 3 additional IP addresses.

Mail Servers

The MX records for studyforchina.com point to two mail servers: mxbiz1.qq.com and mxbiz2.qq.com.

studyforchina.com has the same mail server arrangement as a number of other domains, for example joyeauto.com, wanqian123.com, sztwzs.com and two more.

studyforchina.com shares at least some of its mail servers with other domains — for example haroyo.com, johp.cn, dmapv.com and two more.