mail.codecademy.com - dns.ninja

mail.codecademy.com

DNSSEC⚠️ Not signed
MXmxa.mailgun.org ⭐
A34.149.254.5🇺🇸 Google34.148.0.0/14
PTR5.254.149.34.bc.googleusercontent.com
MXmxb.mailgun.org ⭐
A34.149.254.5🇺🇸 Google34.148.0.0/14
PTR5.254.149.34.bc.googleusercontent.com
TXTv=spf1 include:mailgun.org ~all

codecademy.com

DNSSEC⚠️ Not signed
A2606:4700::6811:b778🇺🇸 Cloudflare2606:4700::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700::6811:b878🇺🇸 Cloudflare2606:4700::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.17.183.120Cloudflare104.17.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.17.184.120Cloudflare104.17.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSarnold.ns.cloudflare.com ⭐
NSserena.ns.cloudflare.com
MXcodecademy-com.mail.protection.outlook.com ⭐
TXTMS=79764F463C8CD2E367B5BF7B1DF1B1C9FFE48501
TXTMS=ms80117904
TXTMosyle-verification-1750951629
TXTapple-domain-verification=6j9Dh5BuEBtMWMMg
TXTatlassian-domain-verification=m7Ac1Hv/T4ePJa3hgcqMgYHykrG65YAE+oy9aqlN+aDA0kh...
TXTfacebook-domain-verification=mm5a3aemk4cv9yfjikcr4de2xn0ait
TXTfigma-domain-verification=8c0a9ebe2f3a594d9d85faed8994ef2b073a992b28ea6a3e9fa...
TXTgoogle-gws-recovery-domain-verification=57013633
TXTgoogle-site-verification=0pRbsGszBlAjZisxsJ2qJLXoXIKCdDlCSK_67hy5BjY
TXTgoogle-site-verification=1pIE7oxQFgbaSths1CckFlGEYBHxpp5pD9F_ZUCcSVA
TXTgoogle-site-verification=BAzjINWd55GJVC7I66cdi0SXSLENbMENU9tqByphDmQ
TXTgoogle-site-verification=BB5unuHbdt4pYsHrMorf_R-mKcUdy5Bk2vvz0Ie_q44
TXTgoogle-site-verification=H0SayPMoRT_4rzjNrg2YvbxiRvQbqSTlwSM0D0wht8U
TXTgoogle-site-verification=M2VbalsxRQjMfelTnHdpgHIeqOKE6CYWnhj6VbGMFH8
TXTgoogle-site-verification=dqlGjeLuQLofS51hgFB6ptoJWM0EkcPoe7G1gmL9muw
TXTgoogle-site-verification=vIdZhswzF-KMQmIllHFhS6VnmeHUvsCKTccrXjab-Lw
TXTgoogle-site-verification=wkpord_VFYRlAcjf2hV21FHnsScCpA9YiMOQqACXsvQ
TXTopenai-domain-verification=dv-RFgs6gJx1YSwFBosC1y2RA1n
TXTsegment-site-verification=NJFFQLAhEEX3Uyz0vgrzNf3fplm6iYsg
TXTv=DKIM1; p=
TXTv=spf1 include:customeriomail.com include:mail.zendesk.com include:_spf.googl...
HTTPSHTTP/2 ✓ hints match
IPv4 hints104.17.183.120, 104.17.184.120
IPv6 hints2606:4700::6811:b778, 2606:4700::6811:b878
SOAarnold.ns.cloudflare.comdns@cloudflare.com serial=2410139977
WOT: SAFE (94/100)
rank #1750 globally
rank #931 in the tld
WOT: SAFE (94/100)
📈 Tranco rank: #5,498

Subdomains

itr.mail.codecademy.com

Same first word

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mail.microsoft
mail.mil.tw
mail.org.in
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mail.cfolks.pl
mail.cm
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mail.gouv.ci
mail.gi
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mail.k12.vt.us
mail.photos
mail.omg.lol
mail.ooo

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DNS History

2 records (2 active, 0 former)

MXmxa.mailgun.orgmxb.mailgun.org
●MXmxa.mailgun.org2026-03-01 → 2026-07-26 · 2 obs
● 2026-03-01 11:05:24
● 2026-07-26 12:38:58
●MXmxb.mailgun.org2026-03-01 → 2026-07-26 · 2 obs
● 2026-03-01 11:05:24
● 2026-07-26 12:38:58

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
comj.gtld-servers.net, g.gtld-servers.net, b.gtld-servers.net, m.gtld-servers.net...-
codecademy.comarnold.ns.cloudflare.com, serena.ns.cloudflare.com12 records

✅ Authoritative Response

Server:108.162.193.69

NS records: arnold.ns.cloudflare.com, serena.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for codecademy.com (unsigned zone)

⏱️ Timing

Total: 131ms | Queries: -

📄 Records

TypeCountSample Data
MX2mxa.mailgun.org (pri: 10), mxb.mailgun.org (pri: 10)
TXT1v=spf1 include:mailgun.org ~all

📌 Glue Records Collected

Total: 12

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

Analysis

Hierarchy

mail.codecademy.com is the parent zone for itr.mail.codecademy.com.

Mail Servers

mail.codecademy.com uses two mail servers, mxa.mailgun.org and mxb.mailgun.org.

The mail server setup of mail.codecademy.com matches that of other domains such as extreme-mods.com, hearingirc.com, brandcastdigital.com and two others.

At least some of the mail servers used by mail.codecademy.com are shared with other domains: digitaldot.us, realestateexperts.net, yujinelson.com and two others among them.

mxa.mailgun.org and mxb.mailgun.org share one IP address between them — 34.149.254.5.

These two host names — mxa.mailgun.org and mxb.mailgun.org — each point to 34.149.254.5 IP addresses.