webstudy.cn - dns.ninja

webstudy.cn

DNSSEC⚠️ Not signed
A2606:4700:3032::6815:17ee🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3037::ac43:d62a🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.23.238Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.214.42🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSgrace.ns.cloudflare.com ⭐
A2606:4700:50::adf5:3a9f🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRgrace.ns.cloudflare.com
A2803:f800:50::6ca2:c09f🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRgrace.ns.cloudflare.com
A2a06:98c1:50::ac40:209f🇺🇸 Cloudflare2a06:98c1:50::/45
PTRgrace.ns.cloudflare.com
A108.162.192.159🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRgrace.ns.cloudflare.com
A172.64.32.159🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRgrace.ns.cloudflare.com
A173.245.58.159🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRgrace.ns.cloudflare.com
NSvenkat.ns.cloudflare.com
A2606:4700:58::a29f:2cfe🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRvenkat.ns.cloudflare.com
A2803:f800:50::6ca2:c3fe🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRvenkat.ns.cloudflare.com
A2a06:98c1:50::ac40:23fe🇺🇸 Cloudflare2a06:98c1:50::/45
PTRvenkat.ns.cloudflare.com
A108.162.195.254🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRvenkat.ns.cloudflare.com
A162.159.44.254Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRvenkat.ns.cloudflare.com
A172.64.35.254🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRvenkat.ns.cloudflare.com
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.23.238, 172.67.214.42
IPv6 hints2606:4700:3032::6815:17ee, 2606:4700:3037::ac43:d62a
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=111, name=cloudflare-ech.com
SOAgrace.ns.cloudflare.comdns@cloudflare.com serial=2410163805

cn

DNSSEC🔒 Signed (DS record present)
NSa.dns.cn ⭐
NSb.dns.cn
NSc.dns.cn
NSd.dns.cn
NSe.dns.cn
NSns.cernet.net ⚠️ Not in parent delegation
SOAa.dns.cnroot@cnnic.cn serial=2035126533

Same first word

webstudy.it
webstudy.xyz
webstudy.eu
webstudy.com
webstudy.dk
webstudy.pk
webstudy.de
webstudy.cn

Similar names

studyweb.co.uk
studyweb.com.cn
studyweb.online
studyweb.ru
studyweb.dk
studyweb.de
studyweb.info
studyweb.fr
studyweb.com

DNS History

28 records (6 active, 22 former)

20162017201820192020202120222023202420252026NSgrace.ns.cloudflare.comvenkat.ns.cloudflare.comdemi.ns.cloudflare.comdns1.iidns.comdns2.iidns.comdns3.iidns.comdns4.iidns.comdns5.iidns.comdns6.iidns.comlaura.ns.cloudflare.commartin.ns.cloudflare.commike.ns.cloudflare.comns3.dns.comns4.dns.comA104.21.23.238172.67.214.422606:4700:3032::6815:17ee2606:4700:3037::ac43:d62a104.21.64.199107.167.19.75107.167.19.76172.67.155.137198.148.92.87198.148.92.882606:4700:3033::6815:40c72606:4700:3034::ac43:9b892606:4700:3037::6815:40c7CNAMEcs.ename.net
○NSdemi.ns.cloudflare.com2026-04-05 → 2026-04-05 · 4 obs
○ 2026-03-27 16:38:24
● 2026-04-05 02:00:52
○ 2026-08-03 04:48:24
○ 2026-08-03 04:48:30
○NSdns1.iidns.com2015-06-02 → 2016-04-13 · 4 obs
● 2015-06-02 12:05:48
● 2016-04-13 13:01:34
○ 2018-10-31 04:25:24
○ 2026-08-03 04:48:30
○NSdns2.iidns.com2015-06-02 → 2016-04-13 · 4 obs
● 2015-06-02 12:05:48
● 2016-04-13 13:01:34
○ 2018-10-31 04:25:24
○ 2026-08-03 04:48:30
○NSdns3.iidns.com2015-06-02 → 2016-04-13 · 4 obs
● 2015-06-02 12:05:48
● 2016-04-13 13:01:34
○ 2018-10-31 04:25:24
○ 2026-08-03 04:48:30
○NSdns4.iidns.com2015-06-02 → 2016-04-13 · 4 obs
● 2015-06-02 12:05:48
● 2016-04-13 13:01:34
○ 2018-10-31 04:25:24
○ 2026-08-03 04:48:30
○NSdns5.iidns.com2015-06-02 → 2016-04-13 · 4 obs
● 2015-06-02 12:05:48
● 2016-04-13 13:01:34
○ 2018-10-31 04:25:24
○ 2026-08-03 04:48:30
○NSdns6.iidns.com2015-06-02 → 2016-12-23 · 4 obs
● 2015-06-02 12:05:48
● 2016-12-23 13:14:30
○ 2018-10-31 04:25:24
○ 2026-08-03 04:48:30
●NSgrace.ns.cloudflare.com2026-08-03 → 2026-08-03 · 3 obs
○ 2026-04-05 02:00:52
● 2026-08-03 04:48:24
● 2026-08-03 04:48:30
○NSlaura.ns.cloudflare.com2026-02-14 → 2026-03-27 · 5 obs
○ 2018-10-31 04:25:24
● 2026-02-14 20:33:34
● 2026-03-27 16:38:24
○ 2026-04-05 02:00:52
○ 2026-08-03 04:48:30
○NSmartin.ns.cloudflare.com2026-04-05 → 2026-04-05 · 4 obs
○ 2026-03-27 16:38:24
● 2026-04-05 02:00:52
○ 2026-08-03 04:48:24
○ 2026-08-03 04:48:30
○NSmike.ns.cloudflare.com2026-02-14 → 2026-03-27 · 5 obs
○ 2018-10-31 04:25:24
● 2026-02-14 20:33:34
● 2026-03-27 16:38:24
○ 2026-04-05 02:00:52
○ 2026-08-03 04:48:30
○NSns3.dns.com2018-10-31 → 2018-10-31 · 4 obs
○ 2016-12-23 13:14:30
● 2018-10-31 04:25:24
○ 2026-02-14 20:33:34
○ 2026-08-03 04:48:30
○NSns4.dns.com2018-10-31 → 2018-10-31 · 4 obs
○ 2016-12-23 13:14:30
● 2018-10-31 04:25:24
○ 2026-02-14 20:33:34
○ 2026-08-03 04:48:30
●NSvenkat.ns.cloudflare.com2026-08-03 → 2026-08-03 · 3 obs
○ 2026-04-05 02:00:52
● 2026-08-03 04:48:24
● 2026-08-03 04:48:30
●A104.21.23.2382026-08-03 → 2026-08-03 · 3 obs
○ 2026-07-16 12:15:56
● 2026-08-03 04:48:24
● 2026-08-03 04:48:30
○A104.21.64.1992026-02-14 → 2026-07-02 · 6 obs
○ 2018-10-31 04:25:24
● 2026-02-14 20:33:34
○ 2026-06-23 22:58:04
● 2026-07-02 05:17:30
○ 2026-08-03 04:48:24
○ 2026-08-03 04:48:30
○A107.167.19.752016-04-13 → 2016-04-13 · 4 obs
○ 2015-06-02 12:05:48
● 2016-04-13 13:01:34
○ 2018-10-31 04:25:24
○ 2026-08-03 04:48:30
○A107.167.19.762016-04-13 → 2016-04-13 · 4 obs
○ 2015-06-02 12:05:48
● 2016-04-13 13:01:34
○ 2018-10-31 04:25:24
○ 2026-08-03 04:48:30
○A172.67.155.1372026-02-14 → 2026-07-02 · 6 obs
○ 2018-10-31 04:25:24
● 2026-02-14 20:33:34
○ 2026-06-23 22:58:04
● 2026-07-02 05:17:30
○ 2026-08-03 04:48:24
○ 2026-08-03 04:48:30
●A172.67.214.422026-08-03 → 2026-08-03 · 3 obs
○ 2026-07-16 12:15:56
● 2026-08-03 04:48:24
● 2026-08-03 04:48:30
○A198.148.92.872015-06-02 → 2015-06-02 · 3 obs
● 2015-06-02 12:05:48
○ 2018-10-31 04:25:24
○ 2026-08-03 04:48:30
○A198.148.92.882015-06-02 → 2015-06-02 · 3 obs
● 2015-06-02 12:05:48
○ 2018-10-31 04:25:24
○ 2026-08-03 04:48:30
●A2606:4700:3032::6815:17ee2026-08-03 → 2026-08-03 · 3 obs
○ 2026-07-16 12:15:56
● 2026-08-03 04:48:24
● 2026-08-03 04:48:30
○A2606:4700:3033::6815:40c72026-07-16 → 2026-07-16 · 4 obs
○ 2026-07-02 05:17:30
● 2026-07-16 12:15:56
○ 2026-08-03 04:48:24
○ 2026-08-03 04:48:30
○A2606:4700:3034::ac43:9b892026-02-14 → 2026-07-02 · 6 obs
○ 2018-10-31 04:25:24
● 2026-02-14 20:33:34
○ 2026-06-23 22:58:04
● 2026-07-02 05:17:30
○ 2026-08-03 04:48:24
○ 2026-08-03 04:48:30
○A2606:4700:3037::6815:40c72026-02-14 → 2026-07-02 · 6 obs
○ 2018-10-31 04:25:24
● 2026-02-14 20:33:34
○ 2026-06-23 22:58:04
● 2026-07-02 05:17:30
○ 2026-07-16 12:15:56
○ 2026-08-03 04:48:30
●A2606:4700:3037::ac43:d62a2026-08-03 → 2026-08-03 · 3 obs
○ 2026-07-16 12:15:56
● 2026-08-03 04:48:24
● 2026-08-03 04:48:30
○CNAMEcs.ename.net2015-06-02 → 2026-02-15 · 9 obs
● 2015-06-02 12:05:48
● 2015-10-21 13:53:22
○ 2016-01-22 11:28:06
● 2016-04-13 13:01:34
○ 2016-12-23 13:14:30
● 2018-10-31 04:25:24
● 2026-02-15 03:35:28
○ 2026-02-24 20:51:42
○ 2026-08-03 04:48:30

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
cnb.dns.cn, d.dns.cn, e.dns.cn, c.dns.cn...-
webstudy.cngrace.ns.cloudflare.com, venkat.ns.cloudflare.com-

✅ Authoritative Response

Server:173.245.58.159

NS records: grace.ns.cloudflare.com, venkat.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for webstudy.cn (unsigned zone)

⏱️ Timing

Total: 295ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.214.42, 104.21.23.238
AAAA22606:4700:3032::6815:17ee, 2606:4700:3037::ac43:d62a
NS2grace.ns.cloudflare.com, venkat.ns.cloudflare.com
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1grace.ns.cloudflare.com dns.cloudflare.c

Analysis

IP Addresses

webstudy.cn has four IP addresses: 104.21.23.238, 172.67.214.42, 2606:4700:3032::6815:17ee and 2606:4700:3037::ac43:d62a.

Two other host names, along with www.greenergysolar.ph, webjuice.co and beta.af, also share IP numbers with webstudy.cn.

Name Servers

webstudy.cn is served by two delegated name servers, grace.ns.cloudflare.com and venkat.ns.cloudflare.com.

webstudy.cn shares its NS records with other domains, for example 028xiyun.com, linkctt.com, lqea.cn and two others.

webstudy.cn partially shares its NS delegation with several other domains, including 1win-bangladesh.net, rd-photo.fr, dinahjasensky.com and two others.

The name servers austin.ns.cloudflare.com, nena.ns.cloudflare.com, pablo.ns.cloudflare.com and algin.ns.cloudflare.com are often found in use alongside these name servers.

DNS names with 6 IP addresses:

grace.ns.cloudflare.com carries IP addresses 108.162.192.159, 172.64.32.159 and 173.245.58.159, with 3 other addresses beyond those.

venkat.ns.cloudflare.com carries IP addresses 108.162.195.254, 162.159.44.254 and 172.64.35.254, with 3 other addresses beyond those.