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Total

DNS

Email

Security

Network

Availability

Domaincisco.com

IPv41

IPv61

MX records3

StatusActive

Domain technical report

cisco.com

Generated: 2026-08-08T17:51:16-05:00 · Cached result

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IPv41

IPv61

MX3

NS5

DiagnosticsMain findings and recommendations

✓

IPv4 (A)30 / 30 pts · Dns

1 IPv4 address(es) detected.

✓

IPv6 (AAAA)10 / 10 pts · Dns

1 IPv6 address(es) detected.

✓

Name server redundancy20 / 20 pts · Dns

5 NS record(s); 2 or more required.

✓

SOA record10 / 10 pts · Dns

Authoritative zone record.

DNSSEC chain0 / 15 pts · Dns

Both DS and DNSKEY are required.

✓

CAA policy5 / 5 pts · Dns

Certificate authority restriction.

✓

DNS propagation10 / 10 pts · Dns

Agreement between public resolvers.

✓

MX records20 / 20 pts · Mail

3 MX record(s).

✓

SPF25 / 25 pts · Mail

SPF policy published.

✓

DMARC25 / 25 pts · Mail

DMARC policy published.

✓

DKIM20 / 20 pts · Mail

A DKIM selector was verified.

MTA-STS0 / 5 pts · Mail

Mail transport policy.

TLS-RPT0 / 5 pts · Mail

TLS reporting policy.

✓

Valid TLS certificate55 / 55 pts · Security

43 day(s) remaining.

✓

Certificate lifetime10 / 10 pts · Security

Full points require at least 30 days remaining.

HTTP security headers8 / 35 pts · Security

2 of 9 evaluated headers detected.

✓

PTR reverse DNS30 / 30 pts · Network

PTR: redirect-ns.cisco.com

IPv4 diversity20 / 35 pts · Network

Two or more IPv4 addresses receive full points.

✓

IPv6 connectivity35 / 35 pts · Network

AAAA availability.

✓

DNS resolution40 / 40 pts · Availability

At least one address family must resolve.

HTTP response0 / 40 pts · Availability

HTTP/2 403

✓

HTTPS final URL20 / 20 pts · Availability

Final URL uses HTTPS.

DNS and emailPublished records and email configuration

A

1 record(s)

72.163.4.185

AAAA

1 record(s)

2001:420:1101:1::185

CNAME

0 record(s)

—

Not configured

MX

3 record(s)

10 alln-mx-01.cisco.com.
20 rcdn-mx-01.cisco.com.
30 aer-mx-01.cisco.com.

TXT

88 record(s)

"sending_domain1067842=8806a83586b0389c05457f8b2f06e4859b3f1b0d6bad52e5fee552bfd0a853e0"
"duo_sso_verification=pG21Oj5OPCxRPsWXsfbauWT9oua82cKtYUPAmsQvovKNq3xqWEcsEMEAhtXy8AFr"
"QuoVadis=94d4ae74-ecd5-4a33-975e-a0d7f546c801"
"duo_sso_verification=IYdVUIrb2L95JVejSXV3hfsJVDZolQKKOPBztlD6TIgfCRSKeMuf8WgbQuFLD4aL"
"jamf-site-verification=0mwRCzzRvk_HiKjmiqR3Lw"
"c900335b8b825859b51473b9943a3880ae795df47426483b0a67630377a902f5"
"wiz-domain-verification=af241e6396696eedf1b361891435f6b21bdebb5621941d99279298c076b5bf5f"
"intercom-domain-validation=8806e2f9-7626-4d9e-ae4d-2d655028629a"
"adobe-idp-site-verification=c900335b8b825859b51473b9943a3880ae795df47426483b0a67630377a902f5"
"adobe-aem-verification=www-idev-cloud.cisco.com/24859/366204/1b990ef7-ff88-4938-bdd9-8458cc152f57"
"miro-verification=53bf5ccd47cb6239fe5cf14c3b328050dd5679ac"
"stripe-verification=8e54fae7680b23aad6d5e3417be73a043f7e45cd2767272dbe0c9c6eac903291"
"atlassian-domain-verification=Gt2demeKDLmtNc9kPZhaAHFA37DEIcmFGUd6LARvB4yjLG70s3WZhaJJ15y499sb"
"duo_sso_verification=sKMGaTln2vmQuKwaE4hKtTEY1UYn2JzAaxSZzGjkgJrKuZChN344mhIptyczoNBA"
"v=spf1 redirect=spfa._spf.cisco.com"
"926723159-3188410"
"duo_sso_verification=6Q7pJwSZ3damWHBcB8TNd9I5oduLRAFDDhip2pTFaa3QoIZtZnCgzjyZr5teSOWS"
"notion-domain-verification=IsKmFIvIIP8RUQNn4ZGQjzuCdZnI7TY7xcIYb65QQE8"
"flexera-domain-verification-oxonqwdadtkprrcn"
"MS=ms35724259"
"workplace-domain-verification=Uhv7QPQ22nbuD3vG0jspf7R6LruYoS"
"elevenlabs=X_8Xi7v2hC20yVbziZuWtkapfDzUtNK3BogfZKVe9gY"
"airtable-verification=d95d028f039252314cb7507fb88e4317"
"yahoo-verification-key=2B33D2zyxdBOxUw/abowAuwQ2pdtznP6ULDfQC3ag2g="
"mZvHszGlmDhvPOUKL+6JMiw/VtckyOMKjcw1PLcjYowxM2PVLX2xG0ZSgdHRm8HXfaaGR2pMvhIrBX1tX3aKRQ=="
"google-site-verification=DN8r8LEcNiPYD95x3VnUM7Q6BH2H3390qvdIy4QjpvU"
"google-site-verification=V3t2K3dvr9fcd1YWwwanSmebEOO_UNTP06HR2_gUO5M"
"atlassian-domain-verification=2ldosmg0o2Mhpyok1OISaSGygWU9zk6fLLWdoczXtHap9luhaHA/pwEaj2Tk6ROK"
"fastly-domain-delegation-e9a758d22183504af2d5ab4d9a9853da-20210127"
"google-site-verification=9MlQU9MMQ1jHLMUkONKe6QzZ-ZIGRv0BCD1_rY1Zdmc"
"_v91byogpqpkdt9giz9d119ldke45oos"
"bfefecbd-d5df-4b3a-b0dd-54bf5c72e698"
"docker-verification=4c56633a-274e-4858-88a2-2aeceffcfd66"
"jetbrains-domain-verification=e9mcf886rjng68x4qu59h22ef"
"amazonses:7LyiKZmpuGja4+KbA4xX3lN69yajYKLkHH4QJcWnuwo="
"facebook-domain-verification=1zoxo8z7t013gpruxmhc8dkerq47vh"
"ms-domain-verification=e0289fac-4a94-41df-b2b0-794347e490b7"
"fastly-domain-delegation-z9slsbDdX0-368365-2021-05-14"
"airtable-verification=18787f2dc47697bb547e871772aba0be"
"airtable-verification=d886631ce96b77ba775f9bddab44df92"
"airtable-verification=8bf444fd0fad14a3aae2681cb7d68641"
"twilio-domain-verification=268434bd6a91bdd8d3bb5e6cffeeace7"
"identrust_validation=IGfVhawoLyaH5CKT49RKObpqHgYyXRvd691dO1oCEOfh"
"sending_domain731003=25e34fadea88da7e64f0fab1e32d094f1f1e0fb2b97622deac2521f7a2c5b2bc"
"twilio-domain-verification=3b5f92478e8c38980a265e599e1538c8"
"postman-domain-verification=bac0835520fcf3b408c07c584b3575452de5930d08a942cc0d000f1267a5b20de395ce8ccce9d6a6d58feff7c25f4000a22cd36968d8ac95ff234ab22ab264bb"
"adobe-aem-verification=www-devint-cloud.cisco.com/24859/366173/9418f2a2-ef45-4788-9de9-91c7d19038b9"
"asv=ac90e11808e87cfbf8768e69819b1aca"
"pendo-domain-verification=c9796502-c914-4e50-892d-e426f2ac68e9"
"anthropic-domain-verification-5dyq28=xkpw44itymPv0HXOvUdry99zb"
"apple-domain-verification=qOInipPgso3W8cmK"
"notion-domain-verification=7sz4S3LLtNIHZpYsgTTgOcRLlLrJ5JrmIgVcdRtGi1X"
"amazonses:mX+ylQj+fJAfh9pr03yIR7YvjKZ1bOo5ABegqM/5pvI="
"flexera-domain-verification-nsbtshbvpbsmbnzh"
"fastly-domain-delegation-im0VCGY5X0axEEmhXJb2-347911-20210310"
"atlassian-domain-verification=7JYRlY9ijBijTJ0YS5a8/58DU7OfKAHMYRufcy0TC57j2mNceH8rg4ajRzErc22Z"
"profound-domain-verification-4tbqdv=dgW9PRoomrumTvr2gfRW4H3B1"
"google-site-verification=lW5eqPMJI4VrLc28YW-JBkqA-FDNVnhFCXQVDvFqZTo"
"duo_sso_verification=AxenLdoqIXzjl2RJzE1BlOfkawDbDFlnbyvjAt8vcjKHBkvYwEMySDRk5QmBd66v"
"hubspot-domain-verification=NDQzNGY2ZWEtZTY0ZC00ZDQyLWI4YzctOGRkNDVjNTQ4YTAx"
"atlassian-domain-verification=672RcADvt8BPqsb9gCN2ZC5DoTAhUT8abC1blYKQxi/MHMaGoA/BuvjFMaWRtgd7"
"airtable-verification=4114c0f710cfc430d841e55ed7ed920d"
"stripe-verification=0BAD851A6A7ACC4A12DDCE03460CCEFAC86320A8494FDCCED35F71EE25EF3D03"
"airtable-verification=8cd8b684d3d85964f2769dcb89944501"
"pendo-domain-verification=5995ba9c-9bf8-43d8-9e5a-309856760011"
"google-site-verification=WmdDuSXl3PMb-48qcY6VUbW9kzNPe46zn9uDwgB2wX0"
"amazonses:QbUv5pPHGQxRy1vKA0J7Y/biE9oR6MTxOTI1bZIfjsw="
"cloudflare_dashboard_sso=f60a7d128e406b8d9dd4103dd3554f6b"
"stripe-verification=2B4F3B35976CFB93CA884A90BF3E0A8873EAC7C5AFD06D7047E87B794EC55DBB"
"SFMC-o7HX74BQ79k7glpt_qjlF2vmZO9DpqLtYxKLwg87"
"facebook-domain-verification=qr2nigspzrpa96j1nd9criovuuwino"
"pendo-domain-verification=Ad800_b0VJCaE7Ued9Ug3pIQ_V4"
"google-site-verification=Vc0Pir22m1u9yw5HjXf6TYO6rlAI9EY8IVKUma-OqDY"
"cursor-domain-verification-evn8nj=Ml5OeQYe3sBg8uZOIeRrJgCO7"
"atlassian-domain-verification=AYTzL6wSVsW0IdyQp7gwv6lwtHdpMATnb8QriqyJ0niAaZct9kdSlXvfuE4GcoxU"
"mixpanel-domain-verify=2c6cb1aa-a3fb-44b9-ad10-d6b744109963"
"docusign=95052c5f-a421-4594-9227-02ad2d86dfbe"
"OSSRH-97236"
"h1-domain-verification=rix5vuxntVpma4rTL2DbE3FDrrPjedhnRaqaHvghyod3egmZ"
"ZOOM_verify_Gf6CaEdJ5aKGvjcUrZRkiA"
"airtable-verification=606530d538d1833c5fc724117ca5409a"
"google-site-verification=qPS9ZkoQ-Og1rBrM1_N7z-tNJNy2BVxE8lw6SB2iFdk"
"docusign=5e18de8e-36d0-4a8e-8e88-b7803423fa2f"
"pendo-domain-verification=c9d2fba1-7d94-4cf9-a6fb-310883c8bb15"
"atlassian-domain-verification=UwP1ncfiphlFs+wRx8wIBSXDScwNL7Jrw7tq2rnYz3+9T5+Md9eTDRgNPCikxtOx"
"airtable-verification=c0b5bd3f3db736f775f0dbe4e103cdea"
"google-site-verification=r-K1CIdXkgRWxZstUHtVyM2UfwflnGgr4AR9_Qhk28Q"
"fastly-domain-delegation-w049tcm0w48ds-341317-20210209"

NS

5 record(s)

ns2.cisco.com.
a28-64.akam.net.
a3-64.akam.net.
ns3.cisco.com.
ns1.cisco.com.

SOA

1 record(s)

ns1.cisco.com. postmaster.cisco.com. 1260697 7200 1800 864000 1800

CAA

11 record(s)

128 issuewild "digicert.com"
0 issue "amazon.com"
0 issue "pki.goog"
0 issue "globalsign.com"
0 issue "digicert.com"
0 issue "identrust.com"
0 issue "ssl.com"
128 issuewild "ssl.com"
128 iodef "mailto:infosec@cisco.com"
128 issuewild "identrust.com"
0 issue "letsencrypt.org"

DS

0 record(s)

—

Not configured

DNSKEY

0 record(s)

—

Not configured

RRSIG

0 record(s)

—

Not configured

NSEC

0 record(s)

—

Not configured

NSEC3

0 record(s)

—

Not configured

SRV

0 record(s)

—

Not configured

NAPTR

0 record(s)

—

Not configured

TLSA

0 record(s)

—

Not configured

SSHFP

0 record(s)

—

Not configured

SPF

Configured

v=spf1 redirect=spfa._spf.cisco.com

DMARC

Configured

v=DMARC1; p=reject; pct=100; sp=reject; fo=1; ri=3600; rua=mailto:ynldvgsr@ag.dmarcian.com; ruf=mailto:ynldvgsr@fr.dmarcian.com;

DKIM

Selector selector1

v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCjN5Xp1l7IEMtDjUpQ61s47LO3/3qJ1XtSXNzH97DTjYgsk7DKB2+QLVXwI1wkoTQq0YqyE6jLeYDhsLWXW45hXuzNG9luLtCFBDB8KPovIkT+PyufDfSmg5DLdaHIPFzeGDMt7xlTuZLFdDI8Dckp5zoHaBuOj8kBeFxardonrQIDAQAB;

Analyzed webpageMetadata and HTTP response

Title and description

No data

Title

Description

Final URL

https://cisco.com/

HTTP status

HTTP

Status

HTTP/2 403

Final URL

https://www.cisco.com/

Version

Server

AkamaiGHost

X-Powered-By

SSL and HTTP securityCertificate, protocol and security headers

SSL certificate

Available

Yes

Issuer

IdenTrust

www.cisco.com

Valid from

2025-08-21T23:22:07-05:00

Valid until

2026-09-20T23:21:07-05:00

Days remaining

Protocol

TLSv1.2

Cipher

ECDHE-RSA-AES256-GCM-SHA384

Security headers

2 active

✓

HSTSImplemented

✓

Content Security PolicyImplemented

—

X-Content-Type-OptionsNot detected

—

X-Frame-OptionsNot detected

—

Referrer PolicyNot detected

—

Permissions PolicyNot detected

—

Cross-Origin-Opener-PolicyNot detected

—

Cross-Origin-Embedder-PolicyNot detected

—

Cross-Origin-Resource-PolicyNot detected

DNS propagationComparison across public resolvers

Public resolver comparison

Consistent

✓

Consistent propagation

5 public resolvers queried.

ResolverServerResultLatency

Google

8.8.8.8

72.163.4.185

25,45 ms

Cloudflare

1.1.1.1

72.163.4.185

19,10 ms

Quad9

9.9.9.9

72.163.4.185

24,12 ms

OpenDNS

208.67.222.222

72.163.4.185

27,54 ms

AdGuard

94.140.14.14

72.163.4.185

43,37 ms

IP, geolocation and ASNAssociated network information

72.163.4.185

No data

success

country

region

city

asn

organization

isp

Visitor information

Visitor

216.73.217.62

reverse

country

country_code

region

city

latitude

longitude

isp

organization

asn

timezone

browser

Other

language

user_agent

Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)

is_bot

Yes

cloudflare

SMTPEmail port connectivity

alln-mx-01.cisco.com

Port 25: Closed/unreachable - 25.5 ms - 
Port 465: Closed/unreachable - 4013 ms - 
Port 587: Closed/unreachable - 4008 ms -

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