021learning.com - dns.ninja

🛡️Domain Reputation CheckBlocklist, phishing & malware status→

021learning.com

DNSSEC⚠️ Not signed
NSa.share-dns.com ⚠️ Not in zone NS records
A172.64.53.25🇺🇸 Cloudflare172.64.53.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
NSa7.share-dns.com ⚠️ Not in parent delegation
A172.64.53.25🇺🇸 Cloudflare172.64.53.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
NSb.share-dns.net ⚠️ Not in zone NS records
A172.64.52.239🇺🇸 Cloudflare172.64.52.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
NSb7.share-dns.net ⚠️ Not in parent delegation
A172.64.52.239🇺🇸 Cloudflare172.64.52.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US

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=1786902234
⚠️ On DNS blocklist: light, multi, pro, pro.mini, pro.plus, pro.plus.mini, tif, tif.medium, tif.mini, ultimate, ultimate.mini

Same first word

021learning.com

DNS History

24 records (4 active, 20 former)

2017201820192020202120222023202420252026NSa.share-dns.coma7.share-dns.comb.share-dns.netb7.share-dns.neta5.share-dns.comb5.share-dns.netdesiree.ns.cloudflare.comdns10.hichina.comdns9.hichina.comexpirens3.hichina.comexpirens4.hichina.commichael.ns.cloudflare.comns7.alidns.comns8.alidns.comvip1.alidns.comvip2.alidns.comMXmxn.mxhichina.commxw.mxhichina.comA104.21.33.233139.129.182.19172.67.193.1592606:4700:3032::6815:21e92606:4700:3032::ac43:c19fCNAMEexpired.hichina.com
●NSa.share-dns.com2026-06-13 → 2026-08-16 · 3 obs
○ 2026-03-29 11:48:38
● 2026-06-13 16:07:12
● 2026-08-16 17:55:08
○NSa5.share-dns.com2026-06-13 → 2026-06-13 · 4 obs
○ 2026-03-29 11:48:38
● 2026-06-13 16:07:12
○ 2026-06-25 13:21:12
○ 2026-08-16 17:55:08
●NSa7.share-dns.com2026-06-25 → 2026-08-16 · 3 obs
○ 2026-06-13 16:07:12
● 2026-06-25 13:21:12
● 2026-08-16 17:55:08
●NSb.share-dns.net2026-06-13 → 2026-08-16 · 3 obs
○ 2026-03-29 11:48:38
● 2026-06-13 16:07:12
● 2026-08-16 17:55:08
○NSb5.share-dns.net2026-06-13 → 2026-06-13 · 4 obs
○ 2026-03-29 11:48:38
● 2026-06-13 16:07:12
○ 2026-06-25 13:21:12
○ 2026-08-16 17:55:08
●NSb7.share-dns.net2026-06-25 → 2026-08-16 · 3 obs
○ 2026-06-13 16:07:12
● 2026-06-25 13:21:12
● 2026-08-16 17:55:08
○NSdesiree.ns.cloudflare.com2026-02-25 → 2026-03-06 · 5 obs
○ 2017-12-22 00:28:54
● 2026-02-25 13:17:54
● 2026-03-06 19:25:16
○ 2026-03-16 21:05:24
○ 2026-08-16 17:55:08
○NSdns10.hichina.com2016-12-19 → 2016-12-19 · 3 obs
● 2016-12-19 22:32:28
○ 2017-12-22 00:28:54
○ 2026-08-16 17:55:08
○NSdns9.hichina.com2016-12-19 → 2016-12-19 · 3 obs
● 2016-12-19 22:32:28
○ 2017-12-22 00:28:54
○ 2026-08-16 17:55:08
○NSexpirens3.hichina.com2026-03-16 → 2026-03-29 · 5 obs
○ 2026-03-06 19:25:16
● 2026-03-16 21:05:24
● 2026-03-29 11:48:38
○ 2026-06-13 16:07:12
○ 2026-08-16 17:55:08
○NSexpirens4.hichina.com2026-03-16 → 2026-03-29 · 5 obs
○ 2026-03-06 19:25:16
● 2026-03-16 21:05:24
● 2026-03-29 11:48:38
○ 2026-06-13 16:07:12
○ 2026-08-16 17:55:08
○NSmichael.ns.cloudflare.com2026-02-25 → 2026-03-06 · 5 obs
○ 2017-12-22 00:28:54
● 2026-02-25 13:17:54
● 2026-03-06 19:25:16
○ 2026-03-16 21:05:24
○ 2026-08-16 17:55:08
○NSns7.alidns.com2026-03-16 → 2026-03-29 · 5 obs
○ 2026-03-06 19:25:16
● 2026-03-16 21:05:24
● 2026-03-29 11:48:38
○ 2026-06-13 16:07:12
○ 2026-08-16 17:55:08
○NSns8.alidns.com2026-03-16 → 2026-03-29 · 5 obs
○ 2026-03-06 19:25:16
● 2026-03-16 21:05:24
● 2026-03-29 11:48:38
○ 2026-06-13 16:07:12
○ 2026-08-16 17:55:08
○NSvip1.alidns.com2017-12-22 → 2017-12-22 · 4 obs
○ 2016-12-19 22:32:28
● 2017-12-22 00:28:54
○ 2026-02-25 13:17:54
○ 2026-08-16 17:55:08
○NSvip2.alidns.com2017-12-22 → 2017-12-22 · 4 obs
○ 2016-12-19 22:32:28
● 2017-12-22 00:28:54
○ 2026-02-25 13:17:54
○ 2026-08-16 17:55:08
○MXmxn.mxhichina.com2016-12-19 → 2017-12-22 · 4 obs
● 2016-12-19 22:32:28
● 2017-12-22 00:28:54
○ 2026-02-25 13:17:54
○ 2026-08-16 17:55:08
○MXmxw.mxhichina.com2016-12-19 → 2017-12-22 · 4 obs
● 2016-12-19 22:32:28
● 2017-12-22 00:28:54
○ 2026-02-25 13:17:54
○ 2026-08-16 17:55:08
○A104.21.33.2332026-02-25 → 2026-03-06 · 5 obs
○ 2017-12-22 00:28:54
● 2026-02-25 13:17:54
● 2026-03-06 19:25:16
○ 2026-03-16 21:05:24
○ 2026-08-16 17:55:08
○A139.129.182.192016-12-19 → 2017-12-22 · 4 obs
● 2016-12-19 22:32:28
● 2017-12-22 00:28:54
○ 2026-02-25 13:17:54
○ 2026-08-16 17:55:08
○A172.67.193.1592026-02-25 → 2026-03-06 · 5 obs
○ 2017-12-22 00:28:54
● 2026-02-25 13:17:54
● 2026-03-06 19:25:16
○ 2026-03-16 21:05:24
○ 2026-08-16 17:55:08
○A2606:4700:3032::6815:21e92026-02-25 → 2026-03-06 · 5 obs
○ 2017-12-22 00:28:54
● 2026-02-25 13:17:54
● 2026-03-06 19:25:16
○ 2026-03-16 21:05:24
○ 2026-08-16 17:55:08
○A2606:4700:3032::ac43:c19f2026-02-25 → 2026-03-06 · 5 obs
○ 2017-12-22 00:28:54
● 2026-02-25 13:17:54
● 2026-03-06 19:25:16
○ 2026-03-16 21:05:24
○ 2026-08-16 17:55:08
○CNAMEexpired.hichina.com2026-03-16 → 2026-03-29 · 4 obs
● 2026-03-16 21:05:24
● 2026-03-29 11:48:38
○ 2026-06-13 16:07:12
○ 2026-08-16 17:55:08

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
comm.gtld-servers.net, g.gtld-servers.net, f.gtld-servers.net, k.gtld-servers.net...-
021learning.comb7.share-dns.net, a7.share-dns.com1 record

✅ Authoritative Response

Server:172.64.53.25

NS records: b7.share-dns.net, a7.share-dns.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for 021learning.com (unsigned zone)

⏱️ Timing

Total: 227ms | Queries: -

📄 Records

TypeCountSample Data
NS2a.share-dns.com, b.share-dns.net

📌 Glue Records Collected

Total: 1

Out-of-bailiwick: 1 (a7.share-dns.com)

Analysis

Name Servers

The authoritative name servers for 021learning.com are a7.share-dns.com, a.share-dns.com, b7.share-dns.net and b.share-dns.net.

021learning.com partially shares its NS delegation with several other domains, including 1507383.com, jiujiust.com, dohdee.com and two others.

In DNS configurations, these name servers often share authority with a3.share-dns.com, b3.share-dns.net, a11.share-dns.com and 7 other name servers.

Four host names each point to one IP address: a7.share-dns.com and a.share-dns.com both point to 172.64.53.25, and b7.share-dns.net and b.share-dns.net both point to 172.64.52.239.

The host names a7.share-dns.com and a.share-dns.com both resolve to 172.64.53.25 IP addresses.

The host names b7.share-dns.net and b.share-dns.net both resolve to 172.64.52.239 IP addresses.