koreader.com - dns.ninja

koreader.com

DNSSEC⚠️ Not signed
A2606:4700:3032::ac43:9689🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3037::6815:1e29🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.30.41Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.150.137🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSbryce.ns.cloudflare.com ⭐
A2606:4700:58::a29f:2c89🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRbryce.ns.cloudflare.com
A2803:f800:50::6ca2:c389🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRbryce.ns.cloudflare.com
A2a06:98c1:50::ac40:2389🇺🇸 Cloudflare2a06:98c1:50::/45
PTRbryce.ns.cloudflare.com
A108.162.195.137🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRbryce.ns.cloudflare.com
A162.159.44.137Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRbryce.ns.cloudflare.com
A172.64.35.137🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRbryce.ns.cloudflare.com
NSpearl.ns.cloudflare.com
A2606:4700:50::a29f:268c🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRpearl.ns.cloudflare.com
A2803:f800:50::6ca2:c28c🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRpearl.ns.cloudflare.com
A2a06:98c1:50::ac40:228c🇺🇸 Cloudflare2a06:98c1:50::/45
PTRpearl.ns.cloudflare.com
A108.162.194.140🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRpearl.ns.cloudflare.com
A162.159.38.140Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRpearl.ns.cloudflare.com
A172.64.34.140🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRpearl.ns.cloudflare.com
MX_dc-mx.36939aa060f6.koreader.com ⭐
A108.181.247.92🇺🇸 AS40676108.181.240.0/21
TXTv=spf1 +a +mx +ip4:23.137.132.50 ~all
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.30.41, 172.67.150.137
IPv6 hints2606:4700:3032::ac43:9689, 2606:4700:3037::6815:1e29
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=35, name=cloudflare-ech.com
SOAbryce.ns.cloudflare.comdns@cloudflare.com serial=2410209355

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=1785451652
⚠️ On DNS blocklist: multi, pro, pro.plus, tif, ultimate

Subdomains

www.koreader.com

Same first word

koreader.com
koreader.rocks

Similar names

roerkade.nl
redkorea.org
kearredo.com
dekorera.se
okreader.com
redkorea.app
redkorea.com
redkorea.net

DNS History

21 records (7 active, 14 former)

20162017201820192020202120222023202420252026NSbryce.ns.cloudflare.compearl.ns.cloudflare.comns49.domaincontrol.comns50.domaincontrol.comnsg1.namebrightdns.comnsg2.namebrightdns.comMX_dc-mx.36939aa060f6.koreader.commailstore1.secureserver.netsmtp.secureserver.netA104.21.30.41172.67.150.1372606:4700:3032::ac43:96892606:4700:3037::6815:1e29184.168.221.51188.114.96.0188.114.97.02606:4700:3032::6815:1e292606:4700:3034::ac43:96892a06:98c1:3120::2a06:98c1:3121::CNAMEhdredirect-lb5-1afb6e2973825a56.elb.us-east-1.amazonaws.com
●NSbryce.ns.cloudflare.com2026-02-23 → 2026-07-30 · 3 obs
○ 2019-12-30 06:07:50
● 2026-02-23 11:29:58
● 2026-07-30 23:16:20
○NSns49.domaincontrol.com2015-05-18 → 2016-12-31 · 4 obs
● 2015-05-18 15:02:08
● 2016-12-31 12:44:24
○ 2019-12-30 06:07:50
○ 2026-07-30 23:16:20
○NSns50.domaincontrol.com2015-05-18 → 2016-12-31 · 4 obs
● 2015-05-18 15:02:08
● 2016-12-31 12:44:24
○ 2019-12-30 06:07:50
○ 2026-07-30 23:16:20
○NSnsg1.namebrightdns.com2019-12-30 → 2019-12-30 · 4 obs
○ 2016-12-31 12:44:24
● 2019-12-30 06:07:50
○ 2026-02-23 11:29:58
○ 2026-07-30 23:16:20
○NSnsg2.namebrightdns.com2019-12-30 → 2019-12-30 · 4 obs
○ 2016-12-31 12:44:24
● 2019-12-30 06:07:50
○ 2026-02-23 11:29:58
○ 2026-07-30 23:16:20
●NSpearl.ns.cloudflare.com2026-02-23 → 2026-07-30 · 3 obs
○ 2019-12-30 06:07:50
● 2026-02-23 11:29:58
● 2026-07-30 23:16:20
●MX_dc-mx.36939aa060f6.koreader.com2026-02-23 → 2026-07-30 · 3 obs
○ 2019-12-30 06:07:50
● 2026-02-23 11:29:58
● 2026-07-30 23:16:20
○MXmailstore1.secureserver.net2015-05-18 → 2016-12-31 · 4 obs
● 2015-05-18 15:02:08
● 2016-12-31 12:44:24
○ 2019-12-30 06:07:50
○ 2026-07-30 23:16:20
○MXsmtp.secureserver.net2015-05-18 → 2016-12-31 · 4 obs
● 2015-05-18 15:02:08
● 2016-12-31 12:44:24
○ 2019-12-30 06:07:50
○ 2026-07-30 23:16:20
●A104.21.30.412026-02-23 → 2026-07-30 · 9 obs
○ 2019-12-30 06:07:50
● 2026-02-23 11:29:58
● 2026-05-22 02:32:14
○ 2026-06-02 02:08:34
● 2026-06-10 00:07:06
● 2026-06-17 21:55:22
○ 2026-06-20 12:31:54
● 2026-07-13 06:30:02
● 2026-07-30 23:16:20
●A172.67.150.1372026-02-23 → 2026-07-30 · 9 obs
○ 2019-12-30 06:07:50
● 2026-02-23 11:29:58
● 2026-05-22 02:32:14
○ 2026-06-02 02:08:34
● 2026-06-10 00:07:06
● 2026-06-17 21:55:22
○ 2026-06-20 12:31:54
● 2026-07-13 06:30:02
● 2026-07-30 23:16:20
○A184.168.221.512015-05-18 → 2016-12-31 · 4 obs
● 2015-05-18 15:02:08
● 2016-12-31 12:44:24
○ 2019-12-30 06:07:50
○ 2026-07-30 23:16:20
○A188.114.96.02026-06-02 → 2026-06-20 · 7 obs
○ 2026-05-22 02:32:14
● 2026-06-02 02:08:34
○ 2026-06-10 00:07:06
○ 2026-06-17 21:55:22
● 2026-06-20 12:31:54
○ 2026-07-13 06:30:02
○ 2026-07-30 23:16:20
○A188.114.97.02026-06-02 → 2026-06-20 · 7 obs
○ 2026-05-22 02:32:14
● 2026-06-02 02:08:34
○ 2026-06-10 00:07:06
○ 2026-06-17 21:55:22
● 2026-06-20 12:31:54
○ 2026-07-13 06:30:02
○ 2026-07-30 23:16:20
○A2606:4700:3032::6815:1e292026-02-23 → 2026-06-17 · 8 obs
○ 2019-12-30 06:07:50
● 2026-02-23 11:29:58
● 2026-05-22 02:32:14
○ 2026-06-02 02:08:34
● 2026-06-10 00:07:06
● 2026-06-17 21:55:22
○ 2026-06-20 12:31:54
○ 2026-07-30 23:16:20
●A2606:4700:3032::ac43:96892026-07-13 → 2026-07-30 · 3 obs
○ 2026-06-20 12:31:54
● 2026-07-13 06:30:02
● 2026-07-30 23:16:20
○A2606:4700:3034::ac43:96892026-02-23 → 2026-06-17 · 8 obs
○ 2019-12-30 06:07:50
● 2026-02-23 11:29:58
● 2026-05-22 02:32:14
○ 2026-06-02 02:08:34
● 2026-06-10 00:07:06
● 2026-06-17 21:55:22
○ 2026-06-20 12:31:54
○ 2026-07-30 23:16:20
●A2606:4700:3037::6815:1e292026-07-13 → 2026-07-30 · 3 obs
○ 2026-06-20 12:31:54
● 2026-07-13 06:30:02
● 2026-07-30 23:16:20
○A2a06:98c1:3120::2026-06-02 → 2026-06-20 · 7 obs
○ 2026-05-22 02:32:14
● 2026-06-02 02:08:34
○ 2026-06-10 00:07:06
○ 2026-06-17 21:55:22
● 2026-06-20 12:31:54
○ 2026-07-13 06:30:02
○ 2026-07-30 23:16:20
○A2a06:98c1:3121::2026-06-02 → 2026-06-20 · 7 obs
○ 2026-05-22 02:32:14
● 2026-06-02 02:08:34
○ 2026-06-10 00:07:06
○ 2026-06-17 21:55:22
● 2026-06-20 12:31:54
○ 2026-07-13 06:30:02
○ 2026-07-30 23:16:20
○CNAMEhdredirect-lb5-1afb6e2973825a56.elb.us-east-1.amazonaws.com2019-12-30 → 2019-12-30 · 3 obs
● 2019-12-30 06:07:50
○ 2026-02-23 11:29:58
○ 2026-07-30 23:16:20

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coma.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...-
koreader.compearl.ns.cloudflare.com, bryce.ns.cloudflare.com12 records

✅ Authoritative Response

Server:108.162.194.140

NS records: pearl.ns.cloudflare.com, bryce.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for koreader.com (unsigned zone)

⏱️ Timing

Total: 125ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.150.137, 104.21.30.41
AAAA22606:4700:3032::ac43:9689, 2606:4700:3037::6815:1e29
NS2bryce.ns.cloudflare.com, pearl.ns.cloudflare.com
MX1_dc-mx.36939aa060f6.koreader.com (pri: 0
TXT1v=spf1 +a +mx +ip4:23.137.132.50 ~all
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1bryce.ns.cloudflare.com dns.cloudflare.c

📌 Glue Records Collected

Total: 12

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

Analysis

Hierarchy

koreader.com is the parent zone for www.koreader.com.

IP Addresses

koreader.com resolves to four IP addresses: 104.21.30.41, 172.67.150.137, 2606:4700:3032::ac43:9689 and 2606:4700:3037::6815:1e29.

Two other host names, along with www.navi-forum.net, zyxcdn.com and sanchem.cn, also share IP numbers with koreader.com.

Name Servers

koreader.com has two authoritative name servers — bryce.ns.cloudflare.com and pearl.ns.cloudflare.com.

koreader.com shares its NS records with other domains, for example gendao.org, docko.app, xn--e1afgecomm.xn--p1ai and two others.

koreader.com partially shares its NS delegation with several other domains, including mymallmyrtlebeach.com, gokids.com.au, blueoceanix.com and two others.

These name servers often co-occur with the name servers arnold.ns.cloudflare.com.

DNS names with 6 IP addresses:

bryce.ns.cloudflare.com points to 108.162.195.137, 162.159.44.137, 172.64.35.137 and 3 other IP addresses.

pearl.ns.cloudflare.com points to 108.162.194.140, 162.159.38.140, 172.64.34.140 and 3 other IP addresses.

Mail Servers

The sole mail server for koreader.com is _dc-mx.36939aa060f6.koreader.com.

_dc-mx.36939aa060f6.koreader.com points to one IP number — 108.181.247.92.