HOW.IS
?

How is cisco.com?

Looks fine risk 0/100

Registered 39 years ago, on no blocklists we checked, valid HTTPS, the site answered 403 in 198 ms.

Why

02050100
finecarefulhigh risk
  • ·Nothing in the checks added risk.

Rule-based: domain age, blocklists, TLS. A heuristic, not a guarantee.

How cisco.com looks right now
The home page, rendered by how.is in a sandboxed browser. Nothing on it is clickable here.
Site
403
198 ms
HTTPS
146 d
left on a IdenTrust certificate
Age
39 years
registered 1987-05-14
Blocklists
0
listings across 5 lists

Everything we looked at

DNS records6 record types
A72.163.4.185
AAAA2001:420:1101:1::185
MX30 aer-mx-01.cisco.com
10 alln-mx-01.cisco.com
20 rcdn-mx-01.cisco.com
NSns3.cisco.com
ns2.cisco.com
ns1.cisco.com
a3-64.akam.net
a28-64.akam.net
TXTprofound-domain-verification-4tbqdv=dgW9PRoomrumTvr2gfRW4H3B1
MS=ms35724259
postman-domain-verification=bac0835520fcf3b408c07c584b3575452de5930d08a942cc0d000f1267a5b20de395ce8ccce9d6a6d58feff7c25f4000a22cd36968d8ac95ff234ab22ab264bb
atlassian-domain-verification=672RcADvt8BPqsb9gCN2ZC5DoTAhUT8abC1blYKQxi/MHMaGoA/BuvjFMaWRtgd7
adobe-aem-verification=www-devint-cloud.cisco.com/24859/366173/9418f2a2-ef45-4788-9de9-91c7d19038b9
jamf-site-verification=0mwRCzzRvk_HiKjmiqR3Lw
airtable-verification=d95d028f039252314cb7507fb88e4317
bfefecbd-d5df-4b3a-b0dd-54bf5c72e698
fastly-domain-delegation-z9slsbDdX0-368365-2021-05-14
pendo-domain-verification=Ad800_b0VJCaE7Ued9Ug3pIQ_V4
c900335b8b825859b51473b9943a3880ae795df47426483b0a67630377a902f5
SFMC-o7HX74BQ79k7glpt_qjlF2vmZO9DpqLtYxKLwg87
google-site-verification=lW5eqPMJI4VrLc28YW-JBkqA-FDNVnhFCXQVDvFqZTo
adobe-idp-site-verification=c900335b8b825859b51473b9943a3880ae795df47426483b0a67630377a902f5
flexera-domain-verification-nsbtshbvpbsmbnzh
airtable-verification=8cd8b684d3d85964f2769dcb89944501
google-site-verification=DN8r8LEcNiPYD95x3VnUM7Q6BH2H3390qvdIy4QjpvU
duo_sso_verification=sKMGaTln2vmQuKwaE4hKtTEY1UYn2JzAaxSZzGjkgJrKuZChN344mhIptyczoNBA
sending_domain1067842=8806a83586b0389c05457f8b2f06e4859b3f1b0d6bad52e5fee552bfd0a853e0
twilio-domain-verification=268434bd6a91bdd8d3bb5e6cffeeace7
mixpanel-domain-verify=2c6cb1aa-a3fb-44b9-ad10-d6b744109963
flexera-domain-verification-oxonqwdadtkprrcn
fastly-domain-delegation-w049tcm0w48ds-341317-20210209
asv=ac90e11808e87cfbf8768e69819b1aca
v=spf1 redirect=spfa._spf.cisco.com
ZOOM_verify_Gf6CaEdJ5aKGvjcUrZRkiA
fastly-domain-delegation-im0VCGY5X0axEEmhXJb2-347911-20210310
duo_sso_verification=6Q7pJwSZ3damWHBcB8TNd9I5oduLRAFDDhip2pTFaa3QoIZtZnCgzjyZr5teSOWS
airtable-verification=4114c0f710cfc430d841e55ed7ed920d
yahoo-verification-key=2B33D2zyxdBOxUw/abowAuwQ2pdtznP6ULDfQC3ag2g=
docusign=5e18de8e-36d0-4a8e-8e88-b7803423fa2f
stripe-verification=0BAD851A6A7ACC4A12DDCE03460CCEFAC86320A8494FDCCED35F71EE25EF3D03
google-site-verification=V3t2K3dvr9fcd1YWwwanSmebEOO_UNTP06HR2_gUO5M
wiz-domain-verification=af241e6396696eedf1b361891435f6b21bdebb5621941d99279298c076b5bf5f
stripe-verification=8e54fae7680b23aad6d5e3417be73a043f7e45cd2767272dbe0c9c6eac903291
duo_sso_verification=AxenLdoqIXzjl2RJzE1BlOfkawDbDFlnbyvjAt8vcjKHBkvYwEMySDRk5QmBd66v
hubspot-domain-verification=NDQzNGY2ZWEtZTY0ZC00ZDQyLWI4YzctOGRkNDVjNTQ4YTAx
duo_sso_verification=IYdVUIrb2L95JVejSXV3hfsJVDZolQKKOPBztlD6TIgfCRSKeMuf8WgbQuFLD4aL
sending_domain731003=25e34fadea88da7e64f0fab1e32d094f1f1e0fb2b97622deac2521f7a2c5b2bc
cursor-domain-verification-evn8nj=Ml5OeQYe3sBg8uZOIeRrJgCO7
twilio-domain-verification=3b5f92478e8c38980a265e599e1538c8
atlassian-domain-verification=AYTzL6wSVsW0IdyQp7gwv6lwtHdpMATnb8QriqyJ0niAaZct9kdSlXvfuE4GcoxU
fastly-domain-delegation-e9a758d22183504af2d5ab4d9a9853da-20210127
google-site-verification=9MlQU9MMQ1jHLMUkONKe6QzZ-ZIGRv0BCD1_rY1Zdmc
duo_sso_verification=pG21Oj5OPCxRPsWXsfbauWT9oua82cKtYUPAmsQvovKNq3xqWEcsEMEAhtXy8AFr
airtable-verification=8bf444fd0fad14a3aae2681cb7d68641
facebook-domain-verification=1zoxo8z7t013gpruxmhc8dkerq47vh
926723159-3188410
identrust_validate=ASvI9O914uC6UlLjYzP9VhdLCEWHi4QQ+R4OdK2vtOMp
mZvHszGlmDhvPOUKL+6JMiw/VtckyOMKjcw1PLcjYowxM2PVLX2xG0ZSgdHRm8HXfaaGR2pMvhIrBX1tX3aKRQ==
google-site-verification=WmdDuSXl3PMb-48qcY6VUbW9kzNPe46zn9uDwgB2wX0
_2gt42gt9xoa6p92bc6h5biciyt314fo
docker-verification=4c56633a-274e-4858-88a2-2aeceffcfd66
miro-verification=53bf5ccd47cb6239fe5cf14c3b328050dd5679ac
atlassian-domain-verification=7JYRlY9ijBijTJ0YS5a8/58DU7OfKAHMYRufcy0TC57j2mNceH8rg4ajRzErc22Z
cloudflare_dashboard_sso=f60a7d128e406b8d9dd4103dd3554f6b
airtable-verification=d886631ce96b77ba775f9bddab44df92
pendo-domain-verification=c9796502-c914-4e50-892d-e426f2ac68e9
identrust_validat
CAA{'type': 'CAA', 'issue': 'ssl.com', 'critical': 0}
{'type': 'CAA', 'issue': 'identrust.com', 'critical': 0}
{'type': 'CAA', 'critical': 128, 'issuewild': 'digicert.com'}
{'type': 'CAA', 'issue': 'letsencrypt.org', 'critical': 0}
{'type': 'CAA', 'issue': 'digicert.com', 'critical': 0}
{'type': 'CAA', 'critical': 128, 'issuewild': 'identrust.com'}
{'type': 'CAA', 'issue': 'globalsign.com', 'critical': 0}
{'type': 'CAA', 'critical': 128, 'issuewild': 'ssl.com'}
{'type': 'CAA', 'issue': 'pki.goog', 'critical': 0}
{'type': 'CAA', 'issue': 'amazon.com', 'critical': 0}
{'type': 'CAA', 'iodef': 'mailto:infosec@cisco.com', 'critical': 128}
RegistrationMarkMonitor Inc.
registrarMarkMonitor Inc.
registered1987-05-14
expires2027-05-15
last changed2026-04-13
owner Cisco Technology Inc.
nameserversa28-64.akam.net
a3-64.akam.net
ns1.cisco.com
ns2.cisco.com
ns3.cisco.com
statusclient delete prohibited
client transfer prohibited
client update prohibited
server delete prohibited
server transfer prohibited
server update prohibited
registered 1987-05-14expires 2027-05-15
HTTPS certificate146 days left
validyes
issuerIdenTrust
coverscisco.com, www.cisco.com, www1.cisco.com, www2.cisco.com, www3.cisco.com, www-01.cisco.com, www-02.cisco.com, www-rtp.cisco.com, www1-ss2.cisco.com, www2-ss1.cisco.com, www3-ss1.cisco.com, www3-ss2.cisco.com
protocolTLSv1.2
issued 2026-09-03expires 2027-03-21
DNSSECinsecure

Domain is not signed with DNSSEC

. → com → cisco.com
Email authenticationexcellent
SPFwarning v=spf1 redirect=spfa._spf.cisco.com
DMARCpass policy reject
DKIMfound: selector1, s1, s2

Whether mail claiming to be from this domain can be checked as genuine.

Security scoregrade A · 178/205
Basic Security
20/40missing: DNSSEC Enabled
Record Security
38/45missing: SPF Record, DKIM Presence
Advanced Security
25/25
Domain Reputation
50/50
Threat Detection
45/45missing: Domain Age Check
Blocklists0 listings · 5 lookups
SURBL MultidomainURIBL MultidomainSpamCop72.163.4.185Barracuda72.163.4.185UCEPROTECT Level 172.163.4.185

Green: clean. Red: listed. Grey: the list did not answer.

Ask it yourself

Agents get this as data. Bought through the API, the checks behind this page cost $0.070: profile $0.025 + trust $0.020 + screenshot $0.020 + site status $0.005.

curl "https://how.is/v1/domain/trust?domain=cisco.com" \ -H "Authorization: Bearer $HOWIS_KEY" # or pay per call in USDC (x402), no key: the 402 tells your agent the price curl -i "https://how.is/v1/domain/profile?domain=cisco.com"

MCP: add https://how.is/mcp to Claude, Codex or Cursor (one-line install) and ask for domain_trust on cisco.com. Reference: /llms.txt.

Watch cisco.com. DNS read at the source every 5 minutes; certificate, blocklists and expiry every 6 hours. You get an email only when something changes.

Watch — $1 / 30 days