`learning.ciena.com`

DNSSEC	⚠️ Not signed
A	40.86.22.107^{🇺🇸 Microsoft40.80.0.0/12}
NS	`ns4.ciena.com` ⭐
		A	40.89.253.123^{🇺🇸 Microsoft40.80.0.0/12}
NS	`ns0111.secondary.cloudflare.com`
		A	2606:4700:51::a29f:2070^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ns0111.secondary.cloudflare.com`
		A	162.159.32.112^{Cloudflare162.159.32.0/23 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ns0111.secondary.cloudflare.com`
NS	`ns0201.secondary.cloudflare.com`
		A	2606:4700:59::a29f:214c^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ns0201.secondary.cloudflare.com`
		A	162.159.33.76^{Cloudflare162.159.32.0/23 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ns0201.secondary.cloudflare.com`
TXT	`v=spf1 include:%{ir}.%{v}.%{d}.spf.has.pphosted.com ~all`
SOA	`ns4.ciena.com`admin@ciena.com serial=44

`ciena.com`

	DNSSEC	⚠️ Not signed
	A	43.245.41.13^{🇦🇺 SQUIZ-AS-AP43.245.41.0/24 Squiz hosting}
	NS	`ns4.ciena.com` ⭐
	NS	`cfns1.cienans.com`
	NS	`cfns2.cienans.com`
	MX	`mxa-00103a01.gslb.pphosted.com` ⭐
	MX	`mxb-00103a01.gslb.pphosted.com` ⭐
	TXT	`00D500000006sro=1TBVR000000006T`
	TXT	`00DTH000005I7RZ=1TBTH00000002mb`
	TXT	`00DVE000007F2Or=1TBVE000000021p`
	TXT	`0gaX5xW2K3xVp4C41otML+D6gpN6zQg+xW7k2wFPRB6bH0zGncLy3WN+Kpu6tAo/wQbVBWpNii24L...`
	TXT	`1l8h50r0ar03pj4262e5e17sp5`
	TXT	`1password-site-verification=IRG7HM7LDZGWTN6JYLDDLZAGXU`
	TXT	`1putod5ufqpub6qeit5odt30a5`
	TXT	`4b1grbhu95p6iomj08h872fdea`
	TXT	`60hi2fad8uqebops28niclce2j`
	TXT	`8f59dd18-e022-41bc-ae26-9784477b8ac7.marketplace.us.axway.com`
	TXT	`DirectFedAuthUrl=https://ciena.okta.com/app/ciena_pwcentrafederated_1/exk24ka...`
	TXT	`MS=ms97441882`
	TXT	`WyCktZWFFzG6QxUO/kcr8AulftyTuZmSsFRrfmYIqmc=N4bBav0kbax3mFbfqcrBG21Zy2pIzDQ5u...`
	TXT	`adobe-idp-site-verification=034210a15b8e70e227fdf3fe74f1c7f7781ba62892475a697...`
	TXT	`amo4nk8p0uvphaqjdqb83vpt60`
	TXT	`anescuaiki1aui674biljr06uk`
	TXT	`anthropic-domain-verification-e4cxs4=0ZCNxaHtPBxiF2dDrfyoeEo7w`
	TXT	`apple-domain-verification=vGh8jITjJ4zt3pZJ`
	TXT	`atlassian-domain-verification=RPsyuqOa19vjyzRBqf4i+0PK0yjbRTK/rieRabLpFh5hIjS...`
	TXT	`axway-amplify=6f5e44ff-e8df-45c0-8c7d-55f1f55e4014`
	TXT	`beam-verification=CNbFgqDHBNfCwF0JaIr8rJRtaoGaY1MAJUKfR4UNnB1SbTYP`
	TXT	`bidbeo7b629khfgrm6ktqcujfj`
	TXT	`bmdvn6rb087411o007liq231qi`
	TXT	`cqoeopd83nfal74cb90k65s5v9`
	TXT	`docker-verification=2c5f54c0-4d99-457b-aaec-c4983b4bcb1b`
	TXT	`docusign=5402fee9-f101-4339-a528-2f0e3b31110e`
	TXT	`e2uij44lfujjhn4247urgjihn7`
	TXT	`facebook-domain-verification=weuo4ogu0ednspw2jf2lzhg0nd3bkt`
	TXT	`google-site-verification=VLSENC_H5WdRH3FiLrw8TYwQyPTME9OiRVYSXv3ZB8Y`
	TXT	`google-site-verification=gKUI6nE1svDoLGrLnZpQx12GO8aU10V3ickyddP07ec`
	TXT	`google-site-verification=r2UE2Q_Uxav4hoZFycD3taE1VHMUGT1i4mtUWAf4WLc`
	TXT	`have-i-been-pwned-verification=4f541ce4ea82890d743890fafeb53ede`
	TXT	`hqhuok0mrhmga5ddkq2bnd3d8o`
	TXT	`hqr0keta5924nnaqjrrjk5rise`
	TXT	`ilih7g25umror0hrtr0vqrangr`
	TXT	`infoblox-domain-mastery=ed29c12fa3ddeb8bce7bae6094091788c0031aca3d71be1e9dcec...`
	TXT	`jamf-site-verification=uJcrmFW71wLWEz_wYc9AOA`
	TXT	`jjk48im75gpboae6n9adv11icg`
	TXT	`l6fti8nhkoh16hlrr5crnr09ci`
	TXT	`miro-verification=1669f9fbb641794a54eddb964bd1fe572e89959c`
	TXT	`nb5u9kgnhp3tisbo3s77465b4a`
	TXT	`o3a2oj3hg2fkc84s14gjo907fg`
	TXT	`onx=acc7cce1-e346-43a9-aa3e-b0d3790e80eb`
	TXT	`pi2l8gbo46pq9gimsmufenm2to`
	TXT	`quebn8ukl9jqcnonoai7fqgp2i`
	TXT	`subt8pkvhu01c8fe814gs617k2`
	TXT	`tcgfebo4v3tcf6th5p4s29otnp`
	TXT	`teamviewer-sso-verification=0378d844c07b4a26ac6d3c920af89768`
	TXT	`teamviewer-sso-verification=61ea02c640864163bc1ccb0417f57d9`
	TXT	`teamviewer-sso-verification=61ea02c640864163bc1ccb0417f57d9c`
	TXT	`uae02ate545k8ra9npq2kqv1sk`
	TXT	`ugk51nh7j8duktaegrrl8vgd9j`
	TXT	`uhto6i4os1sdhnu1t78t7k9utq`
	TXT	`usqch22dsf9mqo3usk1uhepdno`
	TXT	`v=spf1 include:%{ir}.%{v}.%{d}.spf.has.pphosted.com ~all`
	TXT	`xsplit_verify=Qti33s53LiiirUrdfbZY82ZiGuxA0E0o6mhr`
	SOA	`ns4.ciena.com`webchanges@ciena.com serial=379911098

WOT: SAFE (61/100)
rank #39613 globally
rank #19429 in the tld
WOT: SAFE (63/100)
📈 Tranco rank: #68,051

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Similar names

DNS History

4 records (4 active, 0 former)

●NSns0111.secondary.cloudflare.com2026-03-02 → 2026-07-15 · 2 obs

● 2026-03-02 04:02:58
● 2026-07-15 11:54:26

●NSns0201.secondary.cloudflare.com2026-03-02 → 2026-07-15 · 2 obs

● 2026-03-02 04:02:58
● 2026-07-15 11:54:26

●NSns4.ciena.com2026-03-02 → 2026-07-15 · 2 obs

● 2026-03-02 04:02:58
● 2026-07-15 11:54:26

●A40.86.22.1072026-03-02 → 2026-07-15 · 2 obs

● 2026-03-02 04:02:58
● 2026-07-15 11:54:26

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
ciena.com	cfns1.cienans.com, cfns2.cienans.com	2 records
learning.ciena.com	ns0111.secondary.cloudflare.com, ns0201.secondary.cloudflare.com	-

✅ Authoritative Response

Server:162.159.33.76

NS records: ns0111.secondary.cloudflare.com, ns0201.secondary.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for ciena.com (unsigned zone)

⏱️ Timing

Total: 1301ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`40.86.22.107`
NS	2	`ns0111.secondary.cloudflare.com, ns0201.secondary.cloudflare.com`
TXT	1	`v=spf1 include:%{ir}.%{v}.%{d}.spf.has.p`
SOA	1	`ns4.ciena.com admin.ciena.com`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (cfns1.cienans.com, cfns2.cienans.com)

Analysis

IP Addresses

learning.ciena.com points to a single IP number: 40.86.22.107.

education.foremost.com is an example of another host name that shares IP numbers with learning.ciena.com.

Name Servers

learning.ciena.com has three name servers — ns4.ciena.com, ns0111.secondary.cloudflare.com and ns0201.secondary.cloudflare.com.

learning.ciena.com shares at least some of its name servers with other domains, including xelic.com, openwag.info, eagleadfs.com and two others.

These name servers are frequently paired with the name servers cfns1.cienans.com, cfns2.cienans.com and ns2.ciena.com.

Host names with two IP numbers:

ns0111.secondary.cloudflare.com resolves to 162.159.32.112 and 2606:4700:51::a29f:2070.

ns0201.secondary.cloudflare.com resolves to 162.159.33.76 and 2606:4700:59::a29f:214c.

Host names pointing to a single IP address:

ns4.ciena.com resolves to 40.89.253.123.

learning.ciena.com - robtex.com