openclassrooms.com - dns.ninja

`openclassrooms.com`

DNSSEC	⚠️ Not signed
A	2606:4700::6812:ee2^{🇺🇸 Cloudflare2606:4700::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700::6812:fe2^{🇺🇸 Cloudflare2606:4700::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.18.14.226^{Cloudflare104.18.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.18.15.226^{Cloudflare104.18.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`rob.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b8c^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`rob.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c18c^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`rob.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:218c^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`rob.ns.cloudflare.com`
		A	108.162.193.140^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`rob.ns.cloudflare.com`
		A	172.64.33.140^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`rob.ns.cloudflare.com`
		A	173.245.59.140^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`rob.ns.cloudflare.com`
NS	`zara.ns.cloudflare.com`
		A	2606:4700:50::adf5:3a94^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`zara.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c094^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`zara.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2094^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`zara.ns.cloudflare.com`
		A	108.162.192.148^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`zara.ns.cloudflare.com`
		A	172.64.32.148^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`zara.ns.cloudflare.com`
		A	173.245.58.148^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`zara.ns.cloudflare.com`
MX	`smtp.google.com` ⭐
		A	2607:f8b0:4004:c1b::1a^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`wv-in-f26.1e100.net`
		A	2607:f8b0:4004:c1b::1b^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`wv-in-f27.1e100.net`
		A	2607:f8b0:4004:c1d::1a^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`ww-in-f26.1e100.net`
		A	2607:f8b0:4004:c1d::1b^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`ww-in-f27.1e100.net`
		A	142.251.163.26^{🇺🇸 Google142.251.163.0/24}
			PTR	`wv-in-f26.1e100.net`
		A	142.251.163.27^{🇺🇸 Google142.251.163.0/24}
			PTR	`wv-in-f27.1e100.net`
		A	142.251.167.26^{🇺🇸 Google142.251.167.0/24}
			PTR	`ww-in-f26.1e100.net`
		A	142.251.167.27^{🇺🇸 Google142.251.167.0/24}
			PTR	`ww-in-f27.1e100.net`
		A	172.253.115.27^{🇺🇸 Google172.253.115.0/24}
			PTR	`bg-in-f27.1e100.net`
TXT	`Dynatrace-site-verification=022b23d9-99ed-4801-b628-de1712a28979__op1lvli1qhs...`
TXT	`Kxf8htyU=c9682c5ba444c33cbf57e97be8cdb490`
TXT	`MS=ms14097912`
TXT	`Sendinblue-code:44c70bc1d5a742e2d07c6f8744ee4def`
TXT	`apple-domain-verification=eLodIHj2vhR9lugh`
TXT	`atlassian-domain-verification=6gmMY7s1L92PhZ0M+Kr8bNk21XlKopm+aUvqNLjwWg9TL+z...`
TXT	`atlassian-sending-domain-verification=9a4e7011-1022-40e9-85f2-42de81bd80f4`
TXT	`c2a481d1e8ef1df47149007842c2a448`
TXT	`dropbox-domain-verification=vbwmzx8pg6hx`
TXT	`facebook-domain-verification=etty6jmg2dug16uxir8r83bjpw12rz`
TXT	`figma-domain-verification=b4855041d333147a44dda6eb3d287c28c316516711d8a2c8a9d...`
TXT	`google-site-verification=AUfXTxZiNMlJVUMEOV-rE-3qXXDzCs7bWKO1WAkSXsw`
TXT	`google-site-verification=D3uXyLElE31RCouIVVGvRonwT9TKKPYbpTEQRtQC5mM`
TXT	`google-site-verification=EUjYNeCS5YTXeAGwnptXDpbgHL7velgfPpy53rkkn-U`
TXT	`google-site-verification=_F1enPejZyv08M3rBrhfxdle_VpNSxxwxWdcGJRXzUk`
TXT	`google-site-verification=as773-Br6AbX2z0m4GFK707futD1TlTmWRxKpza2bus`
TXT	`google-site-verification=cjs3yTPWmtAmTITMK8HTVYXMolST1dEcMV_xcvGQqUo`
TXT	`heritage=external-dns,external-dns/owner=eks-app-production-eu-west-3,externa...`
TXT	`hubspot-domain-verification=MGE2NzA2MjQtM2E0Yi00YWZhLThmODUtZGQ1M2U3MTMzZmYz`
TXT	`jamf-site-verification=29mRdDTT40s4zdfglLhJxw`
TXT	`miro-verification=e3bf6738d9d0b093d6f376ec7083f7aa949b4ae9`
TXT	`teamviewer-sso-verification=5760bab05a3c4fbea95ee07dcb2fffef`
TXT	`v=spf1 include:mailgun.org include:_spf.salesforce.com include:mail.zendesk.c...`
TXT	`wrike-verification=MTQwNTk1MjpmODUzZGUzMjZkYjZlNzYzZDM2NjQ2YmNiM2IyODM1MThlNj...`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.18.14.226, 104.18.15.226
		IPv6 hints	2606:4700::6812:ee2, 2606:4700::6812:fe2
SOA	`rob.ns.cloudflare.com`dns@cloudflare.com serial=2410338595

`com`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.gtld-servers.net` ⭐
	NS	`b.gtld-servers.net`
	NS	`c.gtld-servers.net`
	NS	`d.gtld-servers.net`
	NS	`e.gtld-servers.net`
	NS	`f.gtld-servers.net`
	NS	`g.gtld-servers.net`
	NS	`h.gtld-servers.net`
	NS	`i.gtld-servers.net`
	NS	`j.gtld-servers.net`
	NS	`k.gtld-servers.net`
	NS	`l.gtld-servers.net`
	NS	`m.gtld-servers.net`
	SOA	`a.gtld-servers.net`nstld@verisign-grs.com serial=1784851852

rank #12765 globally
rank #6190 in the tld
WOT: SAFE (92/100)
📈 Tranco rank: #36,155

Subdomains

www.openclassrooms.com

api.openclassrooms.com

notify.openclassrooms.com

fr.openclassrooms.com

email.openclassrooms.com

Same first word

openclassrooms.org

openclassrooms.fr

openclassrooms.com

DNS History

32 records (7 active, 25 former)

●NSrob.ns.cloudflare.com2015-06-08 → 2026-07-24 · 2 obs

● 2015-06-08 20:21:46
● 2026-07-24 00:34:00

●NSzara.ns.cloudflare.com2015-06-08 → 2026-07-24 · 2 obs

● 2015-06-08 20:21:46
● 2026-07-24 00:34:00

○MXalt1.aspmx.l.google.com2015-06-08 → 2021-06-15 · 4 obs

● 2015-06-08 20:21:46
● 2021-06-15 07:07:30
○ 2026-02-15 01:18:34
○ 2026-07-24 00:34:00

○MXalt2.aspmx.l.google.com2015-06-08 → 2021-06-15 · 4 obs

● 2015-06-08 20:21:46
● 2021-06-15 07:07:30
○ 2026-02-15 01:18:34
○ 2026-07-24 00:34:00

○MXaspmx.l.google.com2015-06-08 → 2021-06-15 · 4 obs

● 2015-06-08 20:21:46
● 2021-06-15 07:07:30
○ 2026-02-15 01:18:34
○ 2026-07-24 00:34:00

○MXaspmx2.googlemail.com2015-06-08 → 2021-06-15 · 4 obs

● 2015-06-08 20:21:46
● 2021-06-15 07:07:30
○ 2026-02-15 01:18:34
○ 2026-07-24 00:34:00

○MXaspmx3.googlemail.com2015-06-08 → 2021-06-15 · 4 obs

● 2015-06-08 20:21:46
● 2021-06-15 07:07:30
○ 2026-02-15 01:18:34
○ 2026-07-24 00:34:00

●MXsmtp.google.com2026-02-15 → 2026-07-24 · 3 obs

○ 2021-06-15 07:07:30
● 2026-02-15 01:18:34
● 2026-07-24 00:34:00

●A104.18.14.2262021-06-15 → 2026-07-24 · 3 obs

○ 2020-06-03 07:08:40
● 2021-06-15 07:07:30
● 2026-07-24 00:34:00

●A104.18.15.2262021-06-15 → 2026-07-24 · 3 obs

○ 2020-06-03 07:08:40
● 2021-06-15 07:07:30
● 2026-07-24 00:34:00

○A104.20.164.362019-12-31 → 2019-12-31 · 4 obs

○ 2019-04-06 08:23:14
● 2019-12-31 17:22:46
○ 2020-06-03 07:08:40
○ 2026-07-24 00:34:00

○A104.20.165.362019-12-31 → 2019-12-31 · 4 obs

○ 2019-04-06 08:23:14
● 2019-12-31 17:22:46
○ 2020-06-03 07:08:40
○ 2026-07-24 00:34:00

○A104.20.20.612017-07-01 → 2019-04-06 · 5 obs

○ 2017-04-06 06:22:56
● 2017-07-01 19:53:52
● 2019-04-06 08:23:14
○ 2019-12-31 17:22:46
○ 2026-07-24 00:34:00

○A104.20.21.612017-07-01 → 2019-04-06 · 5 obs

○ 2017-04-06 06:22:56
● 2017-07-01 19:53:52
● 2019-04-06 08:23:14
○ 2019-12-31 17:22:46
○ 2026-07-24 00:34:00

○A104.20.54.2402016-07-06 → 2017-04-06 · 5 obs

○ 2016-06-26 20:02:00
● 2016-07-06 13:11:30
● 2017-04-06 06:22:56
○ 2017-07-01 19:53:52
○ 2026-07-24 00:34:00

○A104.20.55.2402016-07-06 → 2017-04-06 · 5 obs

○ 2016-06-26 20:02:00
● 2016-07-06 13:11:30
● 2017-04-06 06:22:56
○ 2017-07-01 19:53:52
○ 2026-07-24 00:34:00

○A104.22.64.2002020-06-03 → 2020-06-03 · 4 obs

○ 2019-12-31 17:22:46
● 2020-06-03 07:08:40
○ 2021-06-15 07:07:30
○ 2026-07-24 00:34:00

○A104.22.65.2002020-06-03 → 2020-06-03 · 4 obs

○ 2019-12-31 17:22:46
● 2020-06-03 07:08:40
○ 2021-06-15 07:07:30
○ 2026-07-24 00:34:00

○A141.101.123.2392015-10-20 → 2016-06-26 · 5 obs

○ 2015-06-08 20:21:46
● 2015-10-20 08:25:24
● 2016-06-26 20:02:00
○ 2016-07-06 13:11:30
○ 2026-07-24 00:34:00

○A162.159.246.1942015-06-08 → 2015-06-08 · 3 obs

● 2015-06-08 20:21:46
○ 2015-10-20 08:25:24
○ 2026-07-24 00:34:00

○A162.159.247.1942015-06-08 → 2015-06-08 · 3 obs

● 2015-06-08 20:21:46
○ 2015-10-20 08:25:24
○ 2026-07-24 00:34:00

○A190.93.240.2392015-10-20 → 2016-06-26 · 5 obs

○ 2015-06-08 20:21:46
● 2015-10-20 08:25:24
● 2016-06-26 20:02:00
○ 2016-07-06 13:11:30
○ 2026-07-24 00:34:00

○A2400:cb00:2048:1::6814:143d2018-03-25 → 2018-03-25 · 4 obs

○ 2017-07-01 19:53:52
● 2018-03-25 23:56:16
○ 2018-12-17 00:28:06
○ 2026-07-24 00:34:00

○A2400:cb00:2048:1::6814:153d2018-03-25 → 2018-03-25 · 4 obs

○ 2017-07-01 19:53:52
● 2018-03-25 23:56:16
○ 2018-12-17 00:28:06
○ 2026-07-24 00:34:00

●A2606:4700::6812:ee22021-06-15 → 2026-07-24 · 3 obs

○ 2020-06-03 07:08:40
● 2021-06-15 07:07:30
● 2026-07-24 00:34:00

●A2606:4700::6812:fe22021-06-15 → 2026-07-24 · 3 obs

○ 2020-06-03 07:08:40
● 2021-06-15 07:07:30
● 2026-07-24 00:34:00

○A2606:4700:10::6814:143d2018-12-17 → 2019-04-06 · 5 obs

○ 2018-03-25 23:56:16
● 2018-12-17 00:28:06
● 2019-04-06 08:23:14
○ 2019-12-31 17:22:46
○ 2026-07-24 00:34:00

○A2606:4700:10::6814:153d2018-12-17 → 2019-04-06 · 5 obs

○ 2018-03-25 23:56:16
● 2018-12-17 00:28:06
● 2019-04-06 08:23:14
○ 2019-12-31 17:22:46
○ 2026-07-24 00:34:00

○A2606:4700:10::6814:a4242019-12-31 → 2019-12-31 · 4 obs

○ 2019-04-06 08:23:14
● 2019-12-31 17:22:46
○ 2020-06-03 07:08:40
○ 2026-07-24 00:34:00

○A2606:4700:10::6814:a5242019-12-31 → 2019-12-31 · 4 obs

○ 2019-04-06 08:23:14
● 2019-12-31 17:22:46
○ 2020-06-03 07:08:40
○ 2026-07-24 00:34:00

○A2606:4700:10::6816:40c82020-06-03 → 2020-06-03 · 4 obs

○ 2019-12-31 17:22:46
● 2020-06-03 07:08:40
○ 2021-06-15 07:07:30
○ 2026-07-24 00:34:00

○A2606:4700:10::6816:41c82020-06-03 → 2020-06-03 · 4 obs

○ 2019-12-31 17:22:46
● 2020-06-03 07:08:40
○ 2021-06-15 07:07:30
○ 2026-07-24 00:34:00

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
openclassrooms.com	rob.ns.cloudflare.com, zara.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.193.140

NS records: rob.ns.cloudflare.com, zara.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for openclassrooms.com (unsigned zone)

⏱️ Timing

Total: 600ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.18.15.226, 104.18.14.226`
AAAA	2	`2606:4700::6812:fe2, 2606:4700::6812:ee2`
NS	2	`rob.ns.cloudflare.com, zara.ns.cloudflare.com`
MX	1	`smtp.google.com (pri: 1)`
TXT	24	`Dynatrace-site-verification=022b23d9-99e, Kxf8htyU=c9682c5ba444c33cbf57e97be8cdb49...`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`rob.ns.cloudflare.com dns.cloudflare.com`

📌 Glue Records Collected

Total: 12

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

Analysis

Hierarchy

www.openclassrooms.com, api.openclassrooms.com, notify.openclassrooms.com, fr.openclassrooms.com and email.openclassrooms.com are all subdomains of openclassrooms.com.

IP Addresses

openclassrooms.com directs to four IP numbers, which are 104.18.14.226, 104.18.15.226, 2606:4700::6812:ee2 and 2606:4700::6812:fe2.

g6bmk.com, cleanersupply.com, peerdirect.com plus two other host names have IP numbers in common with openclassrooms.com.

Name Servers

openclassrooms.com has two authoritative name servers — rob.ns.cloudflare.com and zara.ns.cloudflare.com.

The name server configuration of openclassrooms.com is shared with other domains, for instance mobfr.com, izmirkiralikasansor.net, zingchart.com and two others.

The name servers of openclassrooms.com overlap at least partially with those of other domains — among them mebel-online-kemerovo.ru, findcoin.info, novak-m.ch and two more.

Hosts with 6 IP addresses each:

rob.ns.cloudflare.com points to 108.162.193.140, 172.64.33.140, 173.245.59.140 and 3 other IP addresses.

zara.ns.cloudflare.com points to 108.162.192.148, 172.64.32.148, 173.245.58.148 and 3 other IP addresses.

Mail Servers

openclassrooms.com uses one mail server — smtp.google.com.

The mail server setup of openclassrooms.com matches that of other domains such as iworkfurniture.com, haudd.com, getdianahr.com and two others.

At least some of the mail servers used by openclassrooms.com are shared with other domains: 7delights.com, issaquahhighptsa.org, tsuchiya.me and two others among them.

It is common to find these mail servers paired with the mail servers alt1.aspmx.l.google.com, alt2.aspmx.l.google.com and aspmx.l.google.com, as well as two others.

smtp.google.com has 9 IP addresses: 142.251.163.26, 142.251.163.27, 142.251.167.26 plus 6 more.