readcn.com - dns.ninja

readcn.com

DNSSEC⚠️ Not signed
NSarmfazh.ns.cloudflare.com ⭐
A2606:4700:58::a29f:2c68🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRarmfazh.ns.cloudflare.com
A2803:f800:50::6ca2:c368🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRarmfazh.ns.cloudflare.com
A2a06:98c1:50::ac40:2368🇺🇸 Cloudflare2a06:98c1:50::/45
PTRarmfazh.ns.cloudflare.com
A108.162.195.104🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRarmfazh.ns.cloudflare.com
A162.159.44.104Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRarmfazh.ns.cloudflare.com
A172.64.35.104🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRarmfazh.ns.cloudflare.com
NSmariah.ns.cloudflare.com
A2606:4700:50::a29f:26c8🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRmariah.ns.cloudflare.com
A2803:f800:50::6ca2:c2c8🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRmariah.ns.cloudflare.com
A2a06:98c1:50::ac40:22c8🇺🇸 Cloudflare2a06:98c1:50::/45
PTRmariah.ns.cloudflare.com
A108.162.194.200🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRmariah.ns.cloudflare.com
A162.159.38.200Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRmariah.ns.cloudflare.com
A172.64.34.200🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRmariah.ns.cloudflare.com
MXmx1.feishu.cn ⭐
A52.220.106.220🇸🇬 Amazon52.220.0.0/15 SIN prefix
PTRec2-52-220-106-220.ap-southeast-1.compute.amazonaws.com
MXmx2.feishu.cn(5)
A101.126.58.225🇨🇳 VOLCANO-ENGINE101.126.56.0/21 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District,
A122.14.229.0🇨🇳 CHINAMOBILE-CN122.14.224.0/20
MXmx3.feishu.cn(10)
A52.220.106.220🇸🇬 Amazon52.220.0.0/15 SIN prefix
PTRec2-52-220-106-220.ap-southeast-1.compute.amazonaws.com
A101.126.58.225🇨🇳 VOLCANO-ENGINE101.126.56.0/21 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District,
A122.14.229.0🇨🇳 CHINAMOBILE-CN122.14.224.0/20
TXTv=spf1 +include:_netblocks.m.feishu.cn -all
TXTverification-code-site-App_feishu=e7mPWzHdxLw7AWnxgUJr
SOAarmfazh.ns.cloudflare.comdns@cloudflare.com serial=2406753865

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=1782580145

Same first word

readcn.com

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DNS History

9 records (5 active, 4 former)

20162017201820192020202120222023202420252026NSarmfazh.ns.cloudflare.commariah.ns.cloudflare.comf1g1ns1.dnspod.netf1g1ns2.dnspod.netMXmx1.feishu.cnmx2.feishu.cnmx3.feishu.cnA103.238.225.15347.52.65.238
●NSarmfazh.ns.cloudflare.com2026-06-16 → 2026-06-27 · 3 obs
○ 2017-01-23 08:56:18
● 2026-06-16 22:32:10
● 2026-06-27 17:26:42
○NSf1g1ns1.dnspod.net2015-06-16 → 2017-01-23 · 4 obs
● 2015-06-16 22:35:38
● 2017-01-23 08:56:18
○ 2026-06-16 22:32:10
○ 2026-06-27 17:26:42
○NSf1g1ns2.dnspod.net2015-06-16 → 2017-01-23 · 4 obs
● 2015-06-16 22:35:38
● 2017-01-23 08:56:18
○ 2026-06-16 22:32:10
○ 2026-06-27 17:26:42
●NSmariah.ns.cloudflare.com2026-06-16 → 2026-06-27 · 3 obs
○ 2017-01-23 08:56:18
● 2026-06-16 22:32:10
● 2026-06-27 17:26:42
●MXmx1.feishu.cn2026-06-16 → 2026-06-27 · 2 obs
● 2026-06-16 22:32:10
● 2026-06-27 17:26:42
●MXmx2.feishu.cn2026-06-16 → 2026-06-27 · 2 obs
● 2026-06-16 22:32:10
● 2026-06-27 17:26:42
●MXmx3.feishu.cn2026-06-16 → 2026-06-27 · 2 obs
● 2026-06-16 22:32:10
● 2026-06-27 17:26:42
○A103.238.225.1532017-01-23 → 2017-01-23 · 3 obs
● 2017-01-23 08:56:18
○ 2026-06-16 22:32:10
○ 2026-06-27 17:26:42
○A47.52.65.2382018-06-16 → 2018-06-16 · 4 obs
○ 2017-01-23 08:56:18
● 2018-06-16 01:59:38
○ 2026-06-16 22:32:10
○ 2026-06-27 17:26:42

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
comk.gtld-servers.net, f.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net...-
readcn.commariah.ns.cloudflare.com, armfazh.ns.cloudflare.com12 records

✅ Authoritative Response

Server:108.162.194.200

NS records: mariah.ns.cloudflare.com, armfazh.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for readcn.com (unsigned zone)

⏱️ Timing

Total: 219ms | Queries: -

📄 Records

TypeCountSample Data
NS2armfazh.ns.cloudflare.com, mariah.ns.cloudflare.com
MX3mx1.feishu.cn (pri: 1), mx3.feishu.cn (pri: 10)...
TXT2v=spf1 +include:_netblocks.m.feishu.cn -, verification-code-site-App_feishu=e7mPWz
SOA1armfazh.ns.cloudflare.com dns.cloudflare

📌 Glue Records Collected

Total: 12

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

Analysis

Name Servers

readcn.com uses two name servers for its delegation: armfazh.ns.cloudflare.com and mariah.ns.cloudflare.com.

readcn.com uses the same name servers as several other domains — among them kippichile.cl, toymagician.com, basileiacf.org and two more.

There is at least partial name server overlap between readcn.com and other domains — soft4led.com, xingnvlang.com, bad-company.jp and two more among them.

Hostnames that resolve to 6 IP addresses:

Hostname armfazh.ns.cloudflare.com directs to 108.162.195.104, 162.159.44.104 and 172.64.35.104 along with 3 other IP addresses.

Hostname mariah.ns.cloudflare.com directs to 108.162.194.200, 162.159.38.200 and 172.64.34.200 along with 3 other IP addresses.

Mail Servers

Incoming mail for readcn.com is delivered via three mail servers: mx1.feishu.cn, mx2.feishu.cn and mx3.feishu.cn.

readcn.com has at least partial mail server overlap with other domains such as vds.pub, lareborn.com, d4ctech.com and two more.

Hostnames that resolve to three IP addresses:

The hostname mx3.feishu.cn directs to 52.220.106.220, 101.126.58.225 and 122.14.229.0.

Hostnames that resolve to two IP addresses:

mx2.feishu.cn directs traffic to 101.126.58.225 and 122.14.229.0.

Hosts with just one IP address:

mx1.feishu.cn has the IP address 52.220.106.220.

Both mx3.feishu.cn and mx1.feishu.cn resolve to 52.220.106.220 IP addresses each.

Both mx3.feishu.cn and mx2.feishu.cn resolve to 101.126.58.225 IP addresses each.

Both mx3.feishu.cn and mx2.feishu.cn resolve to 122.14.229.0 IP addresses each.