col.udemy.com - robtex.com

col.udemy.com

DNSSEC⚠️ Not signed
A2606:4700::6810:8eed🇺🇸 Cloudflare2606:4700::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700::6810:8fed🇺🇸 Cloudflare2606:4700::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.16.142.237Cloudflare104.16.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.16.143.237Cloudflare104.16.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
TXTv=spf1 include:spf-default.udemy.com -all
HTTPSHTTP/2 ✓ hints match
IPv4 hints104.16.142.237, 104.16.143.237
IPv6 hints2606:4700::6810:8eed, 2606:4700::6810:8fed

udemy.com

DNSSEC🔒 Signed (DS record present)
A2606:4700::6810:8eed🇺🇸 Cloudflare2606:4700::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700::6810:8fed🇺🇸 Cloudflare2606:4700::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.16.142.237Cloudflare104.16.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.16.143.237Cloudflare104.16.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSanna.ns.cloudflare.com ⭐
NSpete.ns.cloudflare.com
MXaspmx.l.google.com ⭐
MXalt1.aspmx.l.google.com(5)
MXalt2.aspmx.l.google.com(5)
MXalt3.aspmx.l.google.com(10)
MXalt4.aspmx.l.google.com(10)
MXaspmx2.googlemail.com(10)
MXaspmx3.googlemail.com(10)
TXTMS=ms39886121
TXT_globalsign-domain-verification=9UioyPO0_F2Epyd3gGV5_VklXzoibTukD_jkbZPw43
TXT_globalsign-domain-verification=oJsQtL3M8axaRGjlRJ4BstY+1TfWDryoeAouwRxay7A=
TXT_nbghqs48lzt0emavhip5o2dyy5kb0xy
TXTadobe-idp-site-verification=e54c98a1c7f23b54b8ac4b7b75952259c173d7bfba731f72d...
TXTapple-domain-verification=IEscmDl7jHBZDO_dBAG0xMjbBbPxomU_9rqwksKrNmk
TXTapple-domain-verification=MntOsncD5C5BxosV
TXTatlassian-domain-verification=YpSV2agr6k+w5lkm2ml8m8/N+xCTPcXjTKwDomeoJJTrgnm...
TXTatlassian-domain-verification=iztR9OQCHGIVBm5w5PmFPf1nTaqiOROSuNTF9Kv0idnfzCB...
TXTcanva-site-verification=Ng9bmmu7vJyWHYrTk_wUZw
TXTcitrix-verification-code=6b798901-86c6-452c-a3ea-ed718cab39bd
TXTcloudhealth=8d6a3d7f-ed91-4280-8422-b4b27b3dfcda
TXTcursor-domain-verification-pae8cg=8gFowcF4OpBSeYJTIw0GYPFvL
TXTdocusign=206e891a-5b22-4d4c-9a10-85066ba89160
TXTdocusign=d078f828-536c-4ce3-a867-b26ad811bb8a
TXTglobalsign-domain-verification=Bo6R5k9s2Zwdk5OoeybGk6L2EHx_oV1TqLgGiMR4IQ
TXTglobalsign-domain-verification=K9ZBZYNiNsNNOiaY2Tbjn-Bfe0dWwAwpstKoOOVJWO
TXTglobalsign-domain-verification=fB1XzR_1Hvbw32pP6EbLFlB9r4pxcc86XOgA7B7DyV
TXTgoogle-site-verification=0Gl3_FzqmUkS2NHg_Wd5pmGiSmt_Jk4MVnaCiDbhDnY
TXTgoogle-site-verification=4E_wLzpH4XLGfUSem4QVA6mUpRJDjvZ03pG1jU56hNM
TXTgoogle-site-verification=Ca1sgMRin5VW1yxjUntivQ3-RySo8SmJcWR6zgFW_w0
TXTgoogle-site-verification=FZsUD-xuwip73XO7XfuX-4kDEY-_Qel0klHmmu6CB5k
TXTgoogle-site-verification=IKMJeRfamsooHAMaTQdFDaQ4MsfeW1Nr6F7DPDEkycg
TXTgoogle-site-verification=RuYIvfeP5e2eBgQzIaky9XuiCkkrVE2KUBULndTtFE4
TXTgoogle-site-verification=c7RTHsaBu_LU5KgIFuPCWa5yxuTrkOGYtKaYt85mrq8
TXTgoogle-site-verification=lKnsAORvM6iM1XErS9RH0TeVGG7VfTb5ST7PGx1AQ-w
TXTgoogle-site-verification=ld8CL_RjIj_FPsIdElHPqkhOMJ8Rixk1y7-s0Opi-90
TXTgoogle-site-verification=mSmGycRVFusrCec4blSh608oUai-y0AumEuI3OlaGBo
TXTjamf-site-verification=L9yfsaaKM7FxdBtc5kWk6g
TXTloom-site-verification=f173ba1cc44648d0ac2bbd0919868a6b
TXTmiro-verification=f165badb21a511b048a7f7a9fba3352c0db8b09b
TXTonetrust-domain-verification=2a6df466515246c4a7c37104f55a82b8
TXTopenai-domain-verification=dv-ncbISx7kF83lZ69Xc97AoraD
TXTpendo-domain-verification=595ba9d5-03ac-4aee-b50f-168214b6a32a
TXTprowly-verification=bebd281d32a3e1b8140345e1f876f82eff2ba617d782c6206e7c21fd9...
TXTstripe-verification=044c7ed24abd68184b0a86b00dbd47b87d1db3a5eb2ee132df5131bfc...
TXTstripe-verification=4d955ddab5b0fc6cf1931b41935e45f7997f3b13677532d11e6a90b58...
TXTstripe-verification=54fa1ebf13b6990c87e17caffc4829d9600d3bd0ca60b24e6bf9ae530...
TXTstripe-verification=5808adfa0c91e8dfe4ecd14f20c22ba0d54b6e8b71b23a5eada978511...
TXTstripe-verification=8ad760d1d60c9bbd83b03ed7fe20a10682f7d65774aa9db13a0b524e5...
TXTstripe-verification=a4f63d60cd50bfe9f3b2c2d8aa55bc596a98ab6e0f0f2e9d798c6939e...
TXTstripe-verification=e006b01ab77ebbe2e6c509a4e2280540bfea979f8c49ed3efd225004a...
TXTstripe-verification=e2909d7f06f271e18ace56ef06db7b552e6692c312adfedaf6cea1a2e...
TXTtwilio-domain-verification=8e64b1bb044ab98ebbd3638c1babb25a
TXTv=spf1 include:_spf.google.com include:mktomail.com include:spf.mtasv.net inc...
TXTzero-path-domain-verification-6e9hdw=BtrY4vZKLJdp2XlFj1sE4FFVG
HTTPSHTTP/2 ✓ hints match
IPv4 hints104.16.142.237, 104.16.143.237
IPv6 hints2606:4700::6810:8eed, 2606:4700::6810:8fed
SOAanna.ns.cloudflare.comdns@cloudflare.com serial=2411941351
WOT: SAFE (89/100)
rank #588 globally
rank #350 in the tld

udemy.com

udemy.comis a global online learning platform that allows instructors to create and sell courses on various subjects. It is operated by Udemy, Inc. and serves both individual learners and corporate clients.

Key facts

  • Owner / operator: Udemy, Inc.
  • TLD:.com— gTLD
  • Primary purpose: Online learning marketplace and corporate training platform
  • Status: active

History

YearEvent
2010Udemy is founded by Eren Bali, Gagan Biyani, and Oktay Caglar, and officially launches its platform.
2013Udemy launches Udemy Business, a dedicated offering for corporate training and development.
2021Udemy becomes a publicly traded company on the Nasdaq stock exchange.
WOT: SAFE (89/100)
📈 Tranco rank: #1,922

Udemy is an online learning marketplace founded in 2010, offering courses taught by independent instructors. With over 60 million students and 200,000 courses, Udemy is one of the largest online learning platforms globally.

Udemy offers courses across business, technology, personal development, and creative skills. Unlike Coursera or edX, Udemy allows anyone to create and sell courses, resulting in massive variety but inconsistent quality.

Udemy's infrastructure handles video streaming, assessments, and certificate generation for millions of learners. The platform processes significant video content storage and delivery.

DNS for udemy.com uses Cloudflare's authoritative DNS infrastructure. The platform's video content is delivered through CDN for smooth learning experiences.

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DNS History

8 records (4 active, 4 former)

202120222023202420252026A104.16.142.237104.16.143.2372606:4700::6810:8eed2606:4700::6810:8fed104.16.91.52104.16.92.522606:4700::6810:5b342606:4700::6810:5c34
●A104.16.142.2372026-02-15 → 2026-08-12 · 3 obs
○ 2020-01-13 15:32:54
● 2026-02-15 23:30:20
● 2026-08-12 23:56:04
●A104.16.143.2372026-02-15 → 2026-08-12 · 3 obs
○ 2020-01-13 15:32:54
● 2026-02-15 23:30:20
● 2026-08-12 23:56:04
○A104.16.91.522020-01-13 → 2020-01-13 · 3 obs
● 2020-01-13 15:32:54
○ 2026-02-15 23:30:20
○ 2026-08-12 23:56:04
○A104.16.92.522020-01-13 → 2020-01-13 · 3 obs
● 2020-01-13 15:32:54
○ 2026-02-15 23:30:20
○ 2026-08-12 23:56:04
○A2606:4700::6810:5b342020-01-13 → 2020-01-13 · 3 obs
● 2020-01-13 15:32:54
○ 2026-02-15 23:30:20
○ 2026-08-12 23:56:04
○A2606:4700::6810:5c342020-01-13 → 2020-01-13 · 3 obs
● 2020-01-13 15:32:54
○ 2026-02-15 23:30:20
○ 2026-08-12 23:56:04
●A2606:4700::6810:8eed2026-02-15 → 2026-08-12 · 3 obs
○ 2020-01-13 15:32:54
● 2026-02-15 23:30:20
● 2026-08-12 23:56:04
●A2606:4700::6810:8fed2026-02-15 → 2026-08-12 · 3 obs
○ 2020-01-13 15:32:54
● 2026-02-15 23:30:20
● 2026-08-12 23:56:04

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coma.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...-
udemy.compete.ns.cloudflare.com, anna.ns.cloudflare.com12 records

✅ Authoritative Response

Server:108.162.193.136

NS records: pete.ns.cloudflare.com, anna.ns.cloudflare.com

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 115ms | Queries: -

📄 Records

TypeCountSample Data
A2104.16.143.237, 104.16.142.237
AAAA22606:4700::6810:8eed, 2606:4700::6810:8fed
TXT1v=spf1 include:spf-default.udemy.com -al
HTTPS1{"priority":1,"target":".","alpn":["h2"]

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

col.udemy.com has four IP addresses: 104.16.142.237, 104.16.143.237, 2606:4700::6810:8eed and 2606:4700::6810:8fed.

Additional host names — gdit.udemy.com, broadcast.udemy.com, 50.udemy.com and two others — share IP numbers with col.udemy.com.