21af.com - dns.ninja

21af.com

DNSSEC⚠️ Not signed
NSns1.judns.com ⚠️ Not in zone NS records
A162.159.27.251Cloudflare162.159.27.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
NSns1.julydns.com ⚠️ Not in parent delegation
A162.159.48.223Cloudflare162.159.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
NSns2.judns.com ⚠️ Not in zone NS records
A162.159.27.251Cloudflare162.159.27.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
NSns2.julydns.com ⚠️ Not in parent delegation
A162.159.48.223Cloudflare162.159.48.0/20 , 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=1784059747

Same first word

21af.com

Similar names

21fa.com
12af.com
fa12.eu
12fa.com
af21.com
af21.de
af21.net
af12.com
af21.ch
fa21.com
fa21.net
1fa2.cn
1af2.com
fa21.se
21fa.cc
1a2f.com
fa21.de
a2f1.com
a21f.com

DNS History

20 records (4 active, 16 former)

20162017201820192020202120222023202420252026NSns1.judns.comns1.julydns.comns2.judns.comns2.julydns.comn3160.ns.yunjiasu.comn617.ns.yunjiasu.comns11.xincache.comns12.xincache.comns17.xincache.comns18.xincache.comMX220.181.130.174220.181.130.174mail.happyisp.commx52.dns.com.cnA127.0.0.1162.159.208.76162.159.209.76162.159.210.4162.159.211.4218.17.211.79
○NSn3160.ns.yunjiasu.com2015-07-24 → 2017-04-20 · 7 obs
● 2015-07-24 12:04:10
● 2015-11-21 09:39:10
○ 2016-02-24 16:35:26
● 2016-04-29 11:45:28
● 2017-04-20 17:39:24
○ 2026-05-13 00:15:22
○ 2026-07-14 20:26:34
○NSn617.ns.yunjiasu.com2015-07-24 → 2017-04-20 · 7 obs
● 2015-07-24 12:04:10
● 2015-11-21 09:39:10
○ 2016-02-24 16:35:26
● 2016-04-29 11:45:28
● 2017-04-20 17:39:24
○ 2026-05-13 00:15:22
○ 2026-07-14 20:26:34
●NSns1.judns.com2026-05-13 → 2026-07-14 · 3 obs
○ 2017-04-20 17:39:24
● 2026-05-13 00:15:22
● 2026-07-14 20:26:34
●NSns1.julydns.com2026-05-13 → 2026-07-14 · 3 obs
○ 2017-04-20 17:39:24
● 2026-05-13 00:15:22
● 2026-07-14 20:26:34
○NSns11.xincache.com2016-02-24 → 2016-02-24 · 4 obs
○ 2015-11-21 09:39:10
● 2016-02-24 16:35:26
○ 2016-04-29 11:45:28
○ 2026-07-14 20:26:34
○NSns12.xincache.com2016-02-24 → 2016-02-24 · 4 obs
○ 2015-11-21 09:39:10
● 2016-02-24 16:35:26
○ 2016-04-29 11:45:28
○ 2026-07-14 20:26:34
○NSns17.xincache.com2016-02-24 → 2016-02-24 · 4 obs
○ 2015-11-21 09:39:10
● 2016-02-24 16:35:26
○ 2016-04-29 11:45:28
○ 2026-07-14 20:26:34
○NSns18.xincache.com2016-02-24 → 2016-02-24 · 4 obs
○ 2015-11-21 09:39:10
● 2016-02-24 16:35:26
○ 2016-04-29 11:45:28
○ 2026-07-14 20:26:34
●NSns2.judns.com2026-05-13 → 2026-07-14 · 3 obs
○ 2017-04-20 17:39:24
● 2026-05-13 00:15:22
● 2026-07-14 20:26:34
●NSns2.julydns.com2026-05-13 → 2026-07-14 · 3 obs
○ 2017-04-20 17:39:24
● 2026-05-13 00:15:22
● 2026-07-14 20:26:34
○MX220.181.130.1742015-11-21 → 2016-02-24 · 5 obs
○ 2015-07-24 12:04:10
● 2015-11-21 09:39:10
● 2016-02-24 16:35:26
○ 2016-04-29 11:45:28
○ 2026-07-14 20:26:34
○MX220.181.130.1742015-07-24 → 2015-07-24 · 3 obs
● 2015-07-24 12:04:10
○ 2015-11-21 09:39:10
○ 2026-07-14 20:26:34
○MXmail.happyisp.com2021-06-14 → 2021-06-14 · 4 obs
○ 2017-04-20 17:39:24
● 2021-06-14 05:00:16
○ 2026-05-13 00:15:22
○ 2026-07-14 20:26:34
○MXmx52.dns.com.cn2016-04-29 → 2017-04-20 · 5 obs
○ 2016-02-24 16:35:26
● 2016-04-29 11:45:28
● 2017-04-20 17:39:24
○ 2021-06-14 05:00:16
○ 2026-07-14 20:26:34
○A127.0.0.12021-06-14 → 2021-06-14 · 4 obs
○ 2017-04-20 17:39:24
● 2021-06-14 05:00:16
○ 2026-05-13 00:15:22
○ 2026-07-14 20:26:34
○A162.159.208.762016-04-29 → 2017-04-20 · 5 obs
○ 2016-02-24 16:35:26
● 2016-04-29 11:45:28
● 2017-04-20 17:39:24
○ 2021-06-14 05:00:16
○ 2026-07-14 20:26:34
○A162.159.209.762016-04-29 → 2017-04-20 · 5 obs
○ 2016-02-24 16:35:26
● 2016-04-29 11:45:28
● 2017-04-20 17:39:24
○ 2021-06-14 05:00:16
○ 2026-07-14 20:26:34
○A162.159.210.42015-07-24 → 2015-11-21 · 4 obs
● 2015-07-24 12:04:10
● 2015-11-21 09:39:10
○ 2016-02-24 16:35:26
○ 2026-07-14 20:26:34
○A162.159.211.42015-07-24 → 2015-11-21 · 4 obs
● 2015-07-24 12:04:10
● 2015-11-21 09:39:10
○ 2016-02-24 16:35:26
○ 2026-07-14 20:26:34
○A218.17.211.792016-02-24 → 2016-02-24 · 4 obs
○ 2015-11-21 09:39:10
● 2016-02-24 16:35:26
○ 2016-04-29 11:45:28
○ 2026-07-14 20:26:34

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
come.gtld-servers.net, l.gtld-servers.net, h.gtld-servers.net, j.gtld-servers.net...-
21af.comns1.judns.com, ns2.judns.com2 records

✅ Authoritative Response

Server:162.159.27.251

NS records: ns1.judns.com, ns2.judns.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for 21af.com (unsigned zone)

⏱️ Timing

Total: 273ms | Queries: -

📄 Records

TypeCountSample Data
NS2ns1.julydns.com, ns2.julydns.com

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns1.judns.com, ns2.judns.com)

Analysis

Name Servers

21af.com has four authoritative name servers: ns1.judns.com, ns2.judns.com, ns1.julydns.com and ns2.julydns.com.

There is at least partial name server overlap between 21af.com and other domains — zuishijie.com, ibmzhibo.com, whyouqi.cn and two more among them.

These name servers frequently co-occur with the name servers ns1.onclouddns.com and ns2.onclouddns.com.

ns1.judns.com and ns2.judns.com each resolve to 162.159.27.251, while ns1.julydns.com and ns2.julydns.com each resolve to 162.159.48.223.

The host names ns1.judns.com and ns2.judns.com both resolve to 162.159.27.251 IP addresses.

The host names ns1.julydns.com and ns2.julydns.com both resolve to 162.159.48.223 IP addresses.