udemy.com - robtex.com

udemy.com

DNSSEC⚠️ Not signed
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A104.16.143.237Cloudflare104.16.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
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PTRanna.ns.cloudflare.com
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PTRpete.ns.cloudflare.com
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HTTPSHTTP/2 ✓ hints match
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IPv6 hints2606:4700::6810:8eed, 2606:4700::6810:8fed
SOAanna.ns.cloudflare.comdns@cloudflare.com serial=2411941351

com

DNSSEC🔒 Signed (DS record present)
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rank #589 globally
rank #351 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

56 records (13 active, 43 former)

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●NSanna.ns.cloudflare.com2015-08-24 → 2026-08-12 · 2 obs
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●NSpete.ns.cloudflare.com2015-08-24 → 2026-08-12 · 2 obs
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●MXalt1.aspmx.l.google.com2015-08-24 → 2026-08-12 · 2 obs
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●MXalt2.aspmx.l.google.com2015-08-24 → 2026-08-12 · 2 obs
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●MXalt3.aspmx.l.google.com2021-06-02 → 2026-08-12 · 3 obs
○ 2015-08-24 06:35:22
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●MXalt4.aspmx.l.google.com2021-06-02 → 2026-08-12 · 3 obs
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●MXaspmx.l.google.com2015-08-24 → 2026-08-12 · 2 obs
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●MXaspmx2.googlemail.com2015-08-24 → 2026-08-12 · 2 obs
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●MXaspmx3.googlemail.com2015-08-24 → 2026-08-12 · 2 obs
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○A1.1.1.12019-09-14 → 2020-08-11 · 5 obs
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● 2019-09-14 02:16:08
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●A104.16.142.2372026-02-15 → 2026-08-12 · 3 obs
○ 2022-01-12 11:01:54
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● 2026-08-12 22:02:46
●A104.16.143.2372026-02-15 → 2026-08-12 · 3 obs
○ 2022-01-12 11:01:54
● 2026-02-15 00:09:24
● 2026-08-12 22:02:46
○A104.16.65.852019-02-05 → 2022-01-12 · 9 obs
○ 2019-02-02 15:14:56
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○A104.16.66.852019-02-05 → 2022-01-12 · 9 obs
○ 2019-02-02 15:14:56
● 2019-02-05 20:37:02
● 2019-04-23 21:50:02
○ 2019-04-25 18:31:54
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○A104.16.91.522019-04-25 → 2020-09-16 · 9 obs
○ 2019-04-23 21:50:02
● 2019-04-25 18:31:54
● 2019-09-12 23:46:54
○ 2019-09-14 02:16:08
○ 2020-08-11 04:04:04
● 2020-08-12 23:50:34
● 2020-09-16 23:52:16
○ 2020-09-20 10:26:02
○ 2026-08-12 22:02:46
○A104.16.92.522019-04-25 → 2020-09-16 · 9 obs
○ 2019-04-23 21:50:02
● 2019-04-25 18:31:54
● 2019-09-12 23:46:54
○ 2019-09-14 02:16:08
○ 2020-08-11 04:04:04
● 2020-08-12 23:50:34
● 2020-09-16 23:52:16
○ 2020-09-20 10:26:02
○ 2026-08-12 22:02:46
○A104.18.130.1082018-05-28 → 2019-02-02 · 5 obs
○ 2018-05-23 20:44:36
● 2018-05-28 16:25:50
● 2019-02-02 15:14:56
○ 2019-02-05 20:37:02
○ 2026-08-12 22:02:46
○A104.18.131.1082018-05-28 → 2019-02-02 · 5 obs
○ 2018-05-23 20:44:36
● 2018-05-28 16:25:50
● 2019-02-02 15:14:56
○ 2019-02-05 20:37:02
○ 2026-08-12 22:02:46
○A104.18.132.1082018-05-28 → 2019-02-02 · 5 obs
○ 2018-05-23 20:44:36
● 2018-05-28 16:25:50
● 2019-02-02 15:14:56
○ 2019-02-05 20:37:02
○ 2026-08-12 22:02:46
○A104.18.133.1082018-05-28 → 2019-02-02 · 5 obs
○ 2018-05-23 20:44:36
● 2018-05-28 16:25:50
● 2019-02-02 15:14:56
○ 2019-02-05 20:37:02
○ 2026-08-12 22:02:46
○A104.18.134.1082018-05-28 → 2019-02-02 · 5 obs
○ 2018-05-23 20:44:36
● 2018-05-28 16:25:50
● 2019-02-02 15:14:56
○ 2019-02-05 20:37:02
○ 2026-08-12 22:02:46
○A104.18.196.352018-05-23 → 2018-05-23 · 4 obs
○ 2018-05-22 19:58:14
● 2018-05-23 20:44:36
○ 2018-05-28 16:25:50
○ 2026-08-12 22:02:46
○A104.18.197.352018-05-23 → 2018-05-23 · 4 obs
○ 2018-05-22 19:58:14
● 2018-05-23 20:44:36
○ 2018-05-28 16:25:50
○ 2026-08-12 22:02:46
○A104.20.34.72015-10-27 → 2015-10-27 · 4 obs
○ 2015-10-25 02:29:24
● 2015-10-27 22:40:50
○ 2015-10-29 16:58:52
○ 2026-08-12 22:02:46
○A104.20.35.72015-10-27 → 2015-10-27 · 4 obs
○ 2015-10-25 02:29:24
● 2015-10-27 22:40:50
○ 2015-10-29 16:58:52
○ 2026-08-12 22:02:46
○A104.20.64.822016-12-26 → 2018-05-22 · 5 obs
○ 2016-12-14 18:21:06
● 2016-12-26 20:28:36
● 2018-05-22 19:58:14
○ 2018-05-23 20:44:36
○ 2026-08-12 22:02:46
○A104.20.65.822016-12-26 → 2018-05-22 · 5 obs
○ 2016-12-14 18:21:06
● 2016-12-26 20:28:36
● 2018-05-22 19:58:14
○ 2018-05-23 20:44:36
○ 2026-08-12 22:02:46
○A104.20.73.642015-10-29 → 2016-12-14 · 5 obs
○ 2015-10-27 22:40:50
● 2015-10-29 16:58:52
● 2016-12-14 18:21:06
○ 2016-12-26 20:28:36
○ 2026-08-12 22:02:46
○A104.20.74.642015-10-29 → 2016-12-14 · 5 obs
○ 2015-10-27 22:40:50
● 2015-10-29 16:58:52
● 2016-12-14 18:21:06
○ 2016-12-26 20:28:36
○ 2026-08-12 22:02:46
○A141.101.112.232015-08-24 → 2015-10-25 · 4 obs
● 2015-08-24 06:35:22
● 2015-10-25 02:29:24
○ 2015-10-27 22:40:50
○ 2026-08-12 22:02:46
○A141.101.113.232015-08-24 → 2015-10-25 · 4 obs
● 2015-08-24 06:35:22
● 2015-10-25 02:29:24
○ 2015-10-27 22:40:50
○ 2026-08-12 22:02:46
○A190.93.241.222015-08-24 → 2015-10-25 · 4 obs
● 2015-08-24 06:35:22
● 2015-10-25 02:29:24
○ 2015-10-27 22:40:50
○ 2026-08-12 22:02:46
○A190.93.242.222015-08-24 → 2015-10-25 · 4 obs
● 2015-08-24 06:35:22
● 2015-10-25 02:29:24
○ 2015-10-27 22:40:50
○ 2026-08-12 22:02:46
○A190.93.243.222015-08-24 → 2015-10-25 · 4 obs
● 2015-08-24 06:35:22
● 2015-10-25 02:29:24
○ 2015-10-27 22:40:50
○ 2026-08-12 22:02:46
○A2400:cb00:2048:1::6812:826c2018-05-28 → 2018-11-01 · 5 obs
○ 2018-05-23 20:44:36
● 2018-05-28 16:25:50
● 2018-11-01 13:30:42
○ 2018-11-02 22:33:30
○ 2026-08-12 22:02:46
○A2400:cb00:2048:1::6812:836c2018-05-28 → 2018-11-01 · 5 obs
○ 2018-05-23 20:44:36
● 2018-05-28 16:25:50
● 2018-11-01 13:30:42
○ 2018-11-02 22:33:30
○ 2026-08-12 22:02:46
○A2400:cb00:2048:1::6812:846c2018-05-28 → 2018-11-01 · 5 obs
○ 2018-05-23 20:44:36
● 2018-05-28 16:25:50
● 2018-11-01 13:30:42
○ 2018-11-02 22:33:30
○ 2026-08-12 22:02:46
○A2400:cb00:2048:1::6812:856c2018-05-28 → 2018-11-01 · 5 obs
○ 2018-05-23 20:44:36
● 2018-05-28 16:25:50
● 2018-11-01 13:30:42
○ 2018-11-02 22:33:30
○ 2026-08-12 22:02:46
○A2400:cb00:2048:1::6812:866c2018-05-28 → 2018-11-01 · 5 obs
○ 2018-05-23 20:44:36
● 2018-05-28 16:25:50
● 2018-11-01 13:30:42
○ 2018-11-02 22:33:30
○ 2026-08-12 22:02:46
○A2400:cb00:2048:1::6812:c4232018-05-23 → 2018-05-23 · 4 obs
○ 2018-05-22 19:58:14
● 2018-05-23 20:44:36
○ 2018-05-28 16:25:50
○ 2026-08-12 22:02:46
○A2400:cb00:2048:1::6812:c5232018-05-23 → 2018-05-23 · 4 obs
○ 2018-05-22 19:58:14
● 2018-05-23 20:44:36
○ 2018-05-28 16:25:50
○ 2026-08-12 22:02:46
○A2400:cb00:2048:1::6814:40522016-12-26 → 2018-05-22 · 5 obs
○ 2016-12-14 18:21:06
● 2016-12-26 20:28:36
● 2018-05-22 19:58:14
○ 2018-05-23 20:44:36
○ 2026-08-12 22:02:46
○A2400:cb00:2048:1::6814:41522016-12-26 → 2018-05-22 · 5 obs
○ 2016-12-14 18:21:06
● 2016-12-26 20:28:36
● 2018-05-22 19:58:14
○ 2018-05-23 20:44:36
○ 2026-08-12 22:02:46
○A2400:cb00:2048:1::6814:49402016-11-06 → 2016-12-14 · 5 obs
○ 2015-10-29 16:58:52
● 2016-11-06 02:45:12
● 2016-12-14 18:21:06
○ 2016-12-26 20:28:36
○ 2026-08-12 22:02:46
○A2400:cb00:2048:1::6814:4a402016-11-06 → 2016-12-14 · 5 obs
○ 2015-10-29 16:58:52
● 2016-11-06 02:45:12
● 2016-12-14 18:21:06
○ 2016-12-26 20:28:36
○ 2026-08-12 22:02:46
○A2606:4700::6810:41552019-02-05 → 2022-01-12 · 9 obs
○ 2019-02-02 15:14:56
● 2019-02-05 20:37:02
● 2019-04-23 21:50:02
○ 2019-04-25 18:31:54
○ 2020-09-16 23:52:16
● 2020-09-20 10:26:02
● 2022-01-12 11:01:54
○ 2026-02-15 00:09:24
○ 2026-08-12 22:02:46
○A2606:4700::6810:42552019-02-05 → 2022-01-12 · 9 obs
○ 2019-02-02 15:14:56
● 2019-02-05 20:37:02
● 2019-04-23 21:50:02
○ 2019-04-25 18:31:54
○ 2020-09-16 23:52:16
● 2020-09-20 10:26:02
● 2022-01-12 11:01:54
○ 2026-02-15 00:09:24
○ 2026-08-12 22:02:46
○A2606:4700::6810:5b342019-04-25 → 2020-09-16 · 9 obs
○ 2019-04-23 21:50:02
● 2019-04-25 18:31:54
● 2019-09-12 23:46:54
○ 2019-09-14 02:16:08
○ 2020-08-11 04:04:04
● 2020-08-12 23:50:34
● 2020-09-16 23:52:16
○ 2020-09-20 10:26:02
○ 2026-08-12 22:02:46
○A2606:4700::6810:5c342019-04-25 → 2020-09-16 · 9 obs
○ 2019-04-23 21:50:02
● 2019-04-25 18:31:54
● 2019-09-12 23:46:54
○ 2019-09-14 02:16:08
○ 2020-08-11 04:04:04
● 2020-08-12 23:50:34
● 2020-09-16 23:52:16
○ 2020-09-20 10:26:02
○ 2026-08-12 22:02:46
●A2606:4700::6810:8eed2026-02-15 → 2026-08-12 · 3 obs
○ 2022-01-12 11:01:54
● 2026-02-15 00:09:24
● 2026-08-12 22:02:46
●A2606:4700::6810:8fed2026-02-15 → 2026-08-12 · 3 obs
○ 2022-01-12 11:01:54
● 2026-02-15 00:09:24
● 2026-08-12 22:02:46
○A2606:4700::6812:826c2018-11-02 → 2019-02-02 · 5 obs
○ 2018-11-01 13:30:42
● 2018-11-02 22:33:30
● 2019-02-02 15:14:56
○ 2019-02-05 20:37:02
○ 2026-08-12 22:02:46
○A2606:4700::6812:836c2018-11-02 → 2019-02-02 · 5 obs
○ 2018-11-01 13:30:42
● 2018-11-02 22:33:30
● 2019-02-02 15:14:56
○ 2019-02-05 20:37:02
○ 2026-08-12 22:02:46
○A2606:4700::6812:846c2018-11-02 → 2019-02-02 · 5 obs
○ 2018-11-01 13:30:42
● 2018-11-02 22:33:30
● 2019-02-02 15:14:56
○ 2019-02-05 20:37:02
○ 2026-08-12 22:02:46
○A2606:4700::6812:856c2018-11-02 → 2019-02-02 · 5 obs
○ 2018-11-01 13:30:42
● 2018-11-02 22:33:30
● 2019-02-02 15:14:56
○ 2019-02-05 20:37:02
○ 2026-08-12 22:02:46
○A2606:4700::6812:866c2018-11-02 → 2019-02-02 · 5 obs
○ 2018-11-01 13:30:42
● 2018-11-02 22:33:30
● 2019-02-02 15:14:56
○ 2019-02-05 20:37:02
○ 2026-08-12 22:02:46

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
comj.gtld-servers.net, k.gtld-servers.net, a.gtld-servers.net, i.gtld-servers.net...-
udemy.compete.ns.cloudflare.com, anna.ns.cloudflare.com12 records

✅ Authoritative Response

Server:108.162.192.102

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: 315ms | Queries: -

📄 Records

TypeCountSample Data
A2104.16.142.237, 104.16.143.237
AAAA22606:4700::6810:8fed, 2606:4700::6810:8eed
NS2anna.ns.cloudflare.com, pete.ns.cloudflare.com
MX7aspmx.l.google.com (pri: 1), alt3.aspmx.l.google.com (pri: 10)...
TXT46MS=ms39886121, _globalsign-domain-verification=9UioyPO0...
HTTPS1{"priority":1,"target":".","alpn":["h2"]
SOA1anna.ns.cloudflare.com dns.cloudflare.co

📌 Glue Records Collected

Total: 12

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

Analysis

Hierarchy

Under udemy.com as parent: sfarch.udemy.com, col.udemy.com, cardinalhealth.udemy.com, westminster.udemy.com, widget.udemy.com and several hundred other host names.

IP Addresses

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

Additional host names — taxback.udemy.com, trial.udemy.com, cnu.udemy.com and two others — share IP numbers with udemy.com.

Name Servers

udemy.com is delegated to two name servers: anna.ns.cloudflare.com and pete.ns.cloudflare.com.

udemy.com shares its name server setup with other domains, including corpu.net, bitsmo.com, fwest98.nl and two others.

udemy.com partially shares its NS delegation with several other domains, including baketech.co, socialchains.com, thoitietngaymai.app and two others.

Host names with 6 IP numbers:

anna.ns.cloudflare.com resolves to 108.162.192.102, 172.64.32.102, 173.245.58.102 and 3 other IP addresses.

pete.ns.cloudflare.com resolves to 108.162.193.136, 172.64.33.136, 173.245.59.136 and 3 other IP addresses.

Mail Servers

The MX records for udemy.com point to 7 mail servers — aspmx2.googlemail.com, aspmx3.googlemail.com, aspmx.l.google.com and 4 other.

udemy.com shares mail servers — at least in part — with other domains, including mattworld.com, lyman.dk, ns500671.ns500731.ns500742.ns500742.ns500731.ns500671.ns500704.ns500678.ns500678.ns500291.ns500291.lustychickser.com and two others.

These mail servers are frequently used alongside mail servers alt2.aspmx.l.google.com, alt1.aspmx.l.google.com, alt3.aspmx.l.google.com and 3 other.

Host names with two IP numbers:

aspmx2.googlemail.com points to 192.178.234.27 and 2800:3f0:4003:c14::1b.

aspmx3.googlemail.com points to 172.253.116.27 and 2a00:1450:400b:c02::1b.

aspmx.l.google.com points to 192.178.155.27 and 2607:f8b0:4004:c23::1b.

alt1.aspmx.l.google.com points to 192.178.234.27 and 2800:3f0:4003:c14::1a.

alt2.aspmx.l.google.com points to 172.253.116.27 and 2a00:1450:400b:c02::1a.

alt3.aspmx.l.google.com points to 192.178.223.26 and 2a00:1450:4009:c0f::1b.

alt4.aspmx.l.google.com points to 172.253.157.26 and 2a00:1450:400c:c23::1b.

aspmx2.googlemail.com and alt1.aspmx.l.google.com are host names that each point to 192.178.234.27 IP addresses.

aspmx3.googlemail.com and alt2.aspmx.l.google.com are host names that each point to 172.253.116.27 IP addresses.