webstudy.cn - dns.ninja
webstudy.cn
| DNSSEC | β οΈ Not signed | ||||||
| NS | grace.ns.cloudflare.com β οΈ Not in zone NS records | ||||||
| A | 2606:4700:50::adf5:3a9fπΊπΈ Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | grace.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c09fπ¨π· Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | grace.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:209fπΊπΈ Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | grace.ns.cloudflare.com | ||||||
| A | 108.162.192.159πΊπΈ Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | grace.ns.cloudflare.com | ||||||
| A | 172.64.32.159πΊπΈ Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | grace.ns.cloudflare.com | ||||||
| A | 173.245.58.159πΊπΈ Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | grace.ns.cloudflare.com | ||||||
| NS | venkat.ns.cloudflare.com β οΈ Not in zone NS records | ||||||
| A | 2606:4700:58::a29f:2cfeπΊπΈ Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | venkat.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c3feπ¨π· Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | venkat.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:23feπΊπΈ Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | venkat.ns.cloudflare.com | ||||||
| A | 108.162.195.254πΊπΈ Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | venkat.ns.cloudflare.com | ||||||
| A | 162.159.44.254Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | venkat.ns.cloudflare.com | ||||||
| A | 172.64.35.254πΊπΈ Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | venkat.ns.cloudflare.com | ||||||
cn
| DNSSEC | π Signed (DS record present) | ||||||
| NS | a.dns.cn β | ||||||
| NS | b.dns.cn | ||||||
| NS | c.dns.cn | ||||||
| NS | d.dns.cn | ||||||
| NS | e.dns.cn | ||||||
| NS | ns.cernet.net β οΈ Not in parent delegation | ||||||
| SOA | a.dns.cnroot@cnnic.cn serial=2035127008 | ||||||
Same first word
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 (2 active, 26 former)
βNSdemi.ns.cloudflare.com2026-04-05 β 2026-04-05 Β· 4 obs
β 2026-04-05 02:00:52
β 2026-08-03 04:48:24
β 2026-08-03 06:46:52
βNSdns1.iidns.com2015-06-02 β 2016-04-13 Β· 4 obs
β 2016-04-13 13:01:34
β 2018-10-31 04:25:24
β 2026-08-03 06:46:52
βNSdns2.iidns.com2015-06-02 β 2016-04-13 Β· 4 obs
β 2016-04-13 13:01:34
β 2018-10-31 04:25:24
β 2026-08-03 06:46:52
βNSdns3.iidns.com2015-06-02 β 2016-04-13 Β· 4 obs
β 2016-04-13 13:01:34
β 2018-10-31 04:25:24
β 2026-08-03 06:46:52
βNSdns4.iidns.com2015-06-02 β 2016-04-13 Β· 4 obs
β 2016-04-13 13:01:34
β 2018-10-31 04:25:24
β 2026-08-03 06:46:52
βNSdns5.iidns.com2015-06-02 β 2016-04-13 Β· 4 obs
β 2016-04-13 13:01:34
β 2018-10-31 04:25:24
β 2026-08-03 06:46:52
βNSdns6.iidns.com2015-06-02 β 2016-12-23 Β· 4 obs
β 2016-12-23 13:14:30
β 2018-10-31 04:25:24
β 2026-08-03 06:46:52
βNSgrace.ns.cloudflare.com2026-08-03 β 2026-08-03 Β· 3 obs
β 2026-08-03 04:48:24
β 2026-08-03 06:46:52
βNSlaura.ns.cloudflare.com2026-02-14 β 2026-03-27 Β· 5 obs
β 2026-02-14 20:33:34
β 2026-03-27 16:38:24
β 2026-04-05 02:00:52
β 2026-08-03 06:46:52
βNSmartin.ns.cloudflare.com2026-04-05 β 2026-04-05 Β· 4 obs
β 2026-04-05 02:00:52
β 2026-08-03 04:48:24
β 2026-08-03 06:46:52
βNSmike.ns.cloudflare.com2026-02-14 β 2026-03-27 Β· 5 obs
β 2026-02-14 20:33:34
β 2026-03-27 16:38:24
β 2026-04-05 02:00:52
β 2026-08-03 06:46:52
βNSns3.dns.com2018-10-31 β 2018-10-31 Β· 4 obs
β 2018-10-31 04:25:24
β 2026-02-14 20:33:34
β 2026-08-03 06:46:52
βNSns4.dns.com2018-10-31 β 2018-10-31 Β· 4 obs
β 2018-10-31 04:25:24
β 2026-02-14 20:33:34
β 2026-08-03 06:46:52
βNSvenkat.ns.cloudflare.com2026-08-03 β 2026-08-03 Β· 3 obs
β 2026-08-03 04:48:24
β 2026-08-03 06:46:52
βA104.21.23.2382026-08-03 β 2026-08-03 Β· 3 obs
β 2026-08-03 04:48:24
β 2026-08-03 06:46:52
βA104.21.64.1992026-02-14 β 2026-07-02 Β· 6 obs
β 2026-02-14 20:33:34
β 2026-06-23 22:58:04
β 2026-07-02 05:17:30
β 2026-08-03 04:48:24
β 2026-08-03 06:46:52
βA107.167.19.752016-04-13 β 2016-04-13 Β· 4 obs
β 2016-04-13 13:01:34
β 2018-10-31 04:25:24
β 2026-08-03 06:46:52
βA107.167.19.762016-04-13 β 2016-04-13 Β· 4 obs
β 2016-04-13 13:01:34
β 2018-10-31 04:25:24
β 2026-08-03 06:46:52
βA172.67.155.1372026-02-14 β 2026-07-02 Β· 6 obs
β 2026-02-14 20:33:34
β 2026-06-23 22:58:04
β 2026-07-02 05:17:30
β 2026-08-03 04:48:24
β 2026-08-03 06:46:52
βA172.67.214.422026-08-03 β 2026-08-03 Β· 3 obs
β 2026-08-03 04:48:24
β 2026-08-03 06:46:52
βA198.148.92.872015-06-02 β 2015-06-02 Β· 3 obs
β 2018-10-31 04:25:24
β 2026-08-03 06:46:52
βA198.148.92.882015-06-02 β 2015-06-02 Β· 3 obs
β 2018-10-31 04:25:24
β 2026-08-03 06:46:52
βA2606:4700:3032::6815:17ee2026-08-03 β 2026-08-03 Β· 3 obs
β 2026-08-03 04:48:24
β 2026-08-03 06:46:52
βA2606:4700:3033::6815:40c72026-07-16 β 2026-07-16 Β· 4 obs
β 2026-07-16 12:15:56
β 2026-08-03 04:48:24
β 2026-08-03 06:46:52
βA2606:4700:3034::ac43:9b892026-02-14 β 2026-07-02 Β· 6 obs
β 2026-02-14 20:33:34
β 2026-06-23 22:58:04
β 2026-07-02 05:17:30
β 2026-08-03 04:48:24
β 2026-08-03 06:46:52
βA2606:4700:3037::6815:40c72026-02-14 β 2026-07-02 Β· 6 obs
β 2026-02-14 20:33:34
β 2026-06-23 22:58:04
β 2026-07-02 05:17:30
β 2026-07-16 12:15:56
β 2026-08-03 06:46:52
βA2606:4700:3037::ac43:d62a2026-08-03 β 2026-08-03 Β· 3 obs
β 2026-08-03 04:48:24
β 2026-08-03 06:46:52
π DNS Trace
π Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | e.dns.cn, c.dns.cn, b.dns.cn, a.dns.cn... | - |
| webstudy.cn | grace.ns.cloudflare.com, venkat.ns.cloudflare.com | - |
β Authoritative Response
Server:172.64.35.254
NS records: grace.ns.cloudflare.com, venkat.ns.cloudflare.com
π DNSSEC Status
β οΈ Insecure (no DNSSEC)
No DS record for webstudy.cn (unsigned zone)
β±οΈ Timing
Total: 841ms | Queries: -
π Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 104.21.23.238, 172.67.214.42 |
| AAAA | 2 | 2606:4700:3032::6815:17ee, 2606:4700:3037::ac43:d62a |
| NS | 2 | grace.ns.cloudflare.com, venkat.ns.cloudflare.com |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
| SOA | 1 | grace.ns.cloudflare.com dns.cloudflare.c |
Analysis
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.