mail.knowdev.com - robtex.com

mail.knowdev.com

CNAMEtraff-https.hugedomains.com
CNAMEhdl-prd-https-0699149ba9be518e.elb.us-east-1.amazonaws.com
DNSSEC⚠️ Not signed
A2600:1f18:4ae:c605:dd5d:b838:5816:d7fb🇺🇸 Amazon2600:1f18::/35 AMAZON EC2 IAD prefix
A2600:1f18:4ae:c606:78d4:4260:db4e:aeee🇺🇸 Amazon2600:1f18::/35 AMAZON EC2 IAD prefix
A13.223.25.84🇺🇸 Amazon13.216.0.0/13 EC2 IAD prefix
A54.243.117.197🇺🇸 Amazon54.242.0.0/15 EC2 IAD prefix

knowdev.com

DNSSEC⚠️ Not signed
A2600:1f18:4ae:c605:dd5d:b838:5816:d7fb🇺🇸 Amazon2600:1f18::/35 AMAZON EC2 IAD prefix
A2600:1f18:4ae:c606:78d4:4260:db4e:aeee🇺🇸 Amazon2600:1f18::/35 AMAZON EC2 IAD prefix
A13.223.25.84🇺🇸 Amazon13.216.0.0/13 EC2 IAD prefix
A54.243.117.197🇺🇸 Amazon54.242.0.0/15 EC2 IAD prefix
NSns1.namebrightdns.com ⭐
NSnsg1.namebrightdns.com
NSnsg2.namebrightdns.com
TXTv=spf1 -all
TXTafternic-verification-G9G3tM8T8EwEizzPzjGJWF
SOAns1.namebrightdns.comdns@namebright.com 2026-03-29 #1

Same first word

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DNS History

18 records (7 active, 11 former)

200920112013201520172019202120232025NSnsg1.namebrightdns.comnsg2.namebrightdns.comns1.namebrightdns.comns2.namebrightdns.comMXanmail.namebrightmail.comA13.223.25.842600:1f18:4ae:c605:dd5d:b838:5816:d7fb2600:1f18:4ae:c606:78d4:4260:db4e:aeee54.243.117.19752.0.96.2452.200.243.12352.71.117.9954.152.144.24354.174.31.25454.208.74.21561.19.251.193CNAMEtraff-https.hugedomains.comhdredirect-lb-399551664.us-east-1.elb.amazonaws.com
○NSns1.namebrightdns.com2015-07-05 → 2016-04-28 · 6 obs
○ 2008-11-03 02:14:36
● 2015-07-05 13:57:04
○ 2015-11-17 10:14:26
● 2016-02-07 12:42:16
● 2016-04-28 17:12:20
○ 2026-03-29 06:23:06
○NSns2.namebrightdns.com2015-07-05 → 2016-04-28 · 4 obs
○ 2008-11-03 02:14:36
● 2015-07-05 13:57:04
● 2016-04-28 17:12:20
○ 2026-03-29 06:23:06
●NSnsg1.namebrightdns.com2015-11-17 → 2026-03-29 · 5 obs
○ 2015-07-05 13:57:04
● 2015-11-17 10:14:26
○ 2016-02-07 12:42:16
○ 2016-04-28 17:12:20
● 2026-03-29 06:23:06
●NSnsg2.namebrightdns.com2015-11-17 → 2026-03-29 · 5 obs
○ 2015-07-05 13:57:04
● 2015-11-17 10:14:26
○ 2016-02-07 12:42:16
● 2016-04-28 17:12:20
● 2026-03-29 06:23:06
○MXanmail.namebrightmail.com2015-07-05 → 2015-07-05 · 4 obs
○ 2008-11-03 02:14:36
● 2015-07-05 13:57:04
○ 2015-11-17 10:14:26
○ 2026-03-29 06:23:06
●A13.223.25.842026-03-29 → 2026-03-29 · 2 obs
○ 2016-04-28 17:12:20
● 2026-03-29 06:23:06
●A2600:1f18:4ae:c605:dd5d:b838:5816:d7fb2026-03-29 → 2026-03-29 · 2 obs
○ 2016-04-28 17:12:20
● 2026-03-29 06:23:06
●A2600:1f18:4ae:c606:78d4:4260:db4e:aeee2026-03-29 → 2026-03-29 · 2 obs
○ 2016-04-28 17:12:20
● 2026-03-29 06:23:06
○A52.0.96.242016-02-07 → 2016-02-07 · 4 obs
○ 2015-11-17 10:14:26
● 2016-02-07 12:42:16
○ 2016-04-28 17:12:20
○ 2026-03-29 06:23:06
○A52.200.243.1232016-04-28 → 2016-04-28 · 3 obs
○ 2016-02-07 12:42:16
● 2016-04-28 17:12:20
○ 2026-03-29 06:23:06
○A52.71.117.992016-02-07 → 2016-02-07 · 4 obs
○ 2015-11-17 10:14:26
● 2016-02-07 12:42:16
○ 2016-04-28 17:12:20
○ 2026-03-29 06:23:06
○A54.152.144.2432016-04-28 → 2016-04-28 · 3 obs
○ 2016-02-07 12:42:16
● 2016-04-28 17:12:20
○ 2026-03-29 06:23:06
○A54.174.31.2542015-07-05 → 2015-11-17 · 5 obs
○ 2008-11-03 02:14:36
● 2015-07-05 13:57:04
● 2015-11-17 10:14:26
○ 2016-02-07 12:42:16
○ 2026-03-29 06:23:06
○A54.208.74.2152015-07-05 → 2015-11-17 · 5 obs
○ 2008-11-03 02:14:36
● 2015-07-05 13:57:04
● 2015-11-17 10:14:26
○ 2016-02-07 12:42:16
○ 2026-03-29 06:23:06
●A54.243.117.1972026-03-29 → 2026-03-29 · 2 obs
○ 2016-04-28 17:12:20
● 2026-03-29 06:23:06
○A61.19.251.1932008-11-03 → 2008-11-03 · 3 obs
● 2008-11-03 02:14:36
○ 2015-07-05 13:57:04
○ 2026-03-29 06:23:06
○CNAMEhdredirect-lb-399551664.us-east-1.elb.amazonaws.com2015-07-05 → 2016-04-28 · 4 obs
○ 2008-11-03 02:14:36
● 2015-07-05 13:57:04
● 2016-04-28 17:12:20
○ 2026-03-29 06:23:06
●CNAMEtraff-https.hugedomains.com2026-03-29 → 2026-03-29 · 2 obs
○ 2016-04-28 17:12:20
● 2026-03-29 06:23:06

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
comc.gtld-servers.net, i.gtld-servers.net, f.gtld-servers.net, b.gtld-servers.net...-
knowdev.comnsg1.namebrightdns.com, nsg2.namebrightdns.com18 records

✅ Authoritative Response

Server:18.209.103.186

NS records: nsg1.namebrightdns.com, nsg2.namebrightdns.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for knowdev.com (unsigned zone)

⏱️ Timing

Total: 100ms | Queries: -

📄 Records

TypeCountSample Data
A213.223.25.84, 54.243.117.197
AAAA22600:1f18:4ae:c606:78d4:4260:db4e:aeee, 2600:1f18:4ae:c605:dd5d:b838:5816:d7fb
NS2nsg1.namebrightdns.com, nsg2.namebrightdns.com
CNAME1traff-https.hugedomains.com

📌 Glue Records Collected

Total: 18

Out-of-bailiwick: 18 (nsg1.namebrightdns.com, nsg1.namebrightdns.com, nsg1.namebrightdns.com...)

Analysis

IP Addresses

mail.knowdev.com refers to four IP numbers: 2600:1f18:4ae:c605:dd5d:b838:5816:d7fb, 2600:1f18:4ae:c606:78d4:4260:db4e:aeee, 13.223.25.84 and 54.243.117.197.

Other host names, for instance qzzhilong.com, godvein.com, lavishdetail.com, mx.theonlinechat.com and as2.botechnology.com share IP numbers with mail.knowdev.com.