HOW.IS
?

How is cambridge.org?

Looks fine risk 0/100

Registered 29 years ago, on no blocklists we checked, valid HTTPS, the site answered 403 in 94 ms.

Why

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

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

How cambridge.org looks right now
The home page, rendered by how.is in a sandboxed browser. Nothing on it is clickable here.
Site
403
94 ms
HTTPS
75 d
left on a Google Trust Services certificate
Age
29 years
registered 1998-04-18
Blocklists
0
listings across 5 lists

Everything we looked at

DNS records5 record types
A104.17.110.190
104.17.111.190
MX4 eu-smtp-inbound-2.mimecast.com
4 eu-smtp-inbound-1.mimecast.com
NSnucum.ns.cloudflare.com
lex.ns.cloudflare.com
TXTatlassian-sending-domain-verification=681c02b7-bef7-4652-a1c3-b5999a7056c2
google-site-verification=RHYH2O4q7639HXg9OOtkhwU1GoSz2yrwFQ95dmHzArI
08261f74-adda-45ae-bab0-9b7e8919b7c7
v=spf1 redirect=390fwuvj._spf._d.mim.ec
MS=ms61882158
facebook-domain-verification=nkrm6s56pcmfep9h0lgko47xsxxml5
apple-domain-verification=DhDDkLn3rLrZDuNx
parkable-domain-verification=tfyMMTd19z2TedD63DPVMyjFILPMgwM4IP7J2elpykE=
amazonses:ULRvjmdH/bCZZFgF/xINBm531pRwaQntnQRX/m4r5Zc=
xwwmlgcbfg256thhdv0150228ks7rkzb
miro-verification=e0eb88c47512f1b3e347014c28cd69d732b8cc38
_7medm2uqul87tj3d47vgw0kjs7tvycm
apple-domain-verification=0z9Q3j82qURKE0jE
google-site-verification=G2cATcZ2EVrpsOVGGF5MmI4kHQzXzEWHQ3MLXp2AmjI
_qzf1ow8akt4j08t4s2mpxnfm03j00ap
amazonses:ivqwfLhOGGWGY27uhxdFOA4LwWOJLR+4cr1nUQ4Guh4=
knowbe4-site-verification=6f2a12971b44215b655214e401300716
google-site-verification=-houjDGhv3j4boUHMyT2w-kmHVFMJBopLlqOV9CRtXE
onetrust-domain-verification=67ea4d2fa6f84245aa04d058118d26ad
apple-domain-verification=dJCKMZtNMZrBxvyv
confluent-verification=5cd8b60d-2121-4b7a-8dc9-6c3fb6a7bc43
_9acsisu491ieex01chikb1wu70u61ev
amazonses:q6HVI+PeonYnqfC7kDzNqCrUyIXQnena/tC1RgTQZ/s=
00D8d0000059NJR=1TBSq00000004jZ
google-site-verification=N5etRfpe1AcCZMdSJz5sVicQHzzIr9RbU9cQTjQ94vE
apple-domain-verification=KWFJvZjxo6vLLBmf
atlassian-domain-verification=7S7bsIrOwlHLdBG0OLNWITmcgqmnW8uaUKxRjA4McIJx1ThN46eQh2TaacXbCKhR
google-site-verification=iDXI17Esaf_WqUOMbG7t1tkZ3cD3I2B81texGDyCmLE
figma-domain-verification=82306f7d5e6d9b44f70bf7e951c99627e467dcb0111c988d3ae2066031b18983-1755005759
docusign=8f67c3ac-0e31-428a-b89b-d6c05efbcc57
formstack-domain-verification=bc1d27a650a1f333058871330e43d4c1
anthropic-domain-verification-mae9zt=OrJVGKqpLLCr3R2xm97n1UkaA
00D2000000000hs=1TBQt00000001Vd
77b755eb-0c8f-462f-9071-e147b4823dba
SFMC-XCiRpahbO1482ub4X4SdBpTNt9_QuR4k5vr-azmb
krp4xlxh54n2p0jgnklc2sy826wnbqfd
teamviewer-sso-verification=db65502554224be3a892d0a1d7d23ac7
amazonses:Hk45M0qWK+GZ2iX9XJ0TVVq2mc+DayOePbXsYVp/abQ=
Z8kBemfkazJ2i4ysd4p6BpfEKVVRKFT0hQCLeyk8itVhI7FgQo/fof5BCS1pgLO13FaYp+KaVmX2pPT7/mtD+Q==
onetrust-domain-verification=e66d1551d1154391a5e51733b7fc58a8
6mhwwb8qmrthfb7qmpjlkhr6w30yrqk7
zoho-verification=zb43177975.zmverify.zoho.com
_6rpwlgh7ul5lr5zxzlmlb7hpr2ejnqe
adobe-idp-site-verification=7d354030906008d5dcab28dc74cff0b4c3f868aa68415212c70801597f944dc8
56l0x50ygt1fkr23c9npqsrmwqr2cvhb
0c333ae6-6e62-4dd3-bd75-bbbe8c00a9e3
have-i-been-pwned-verification=361b42c0181f1c91867b0c7731657e90
CAA{'type': 'CAA', 'critical': 0, 'issuewild': 'comodoca.com'}
{'type': 'CAA', 'issue': 'digicert.com; cansignhttpexchanges=yes', 'critical': 0}
{'type': 'CAA', 'critical': 0, 'issuewild': 'pki.goog; cansignhttpexchanges=yes'}
{'type': 'CAA', 'issue': 'ssl.com', 'critical': 0}
{'type': 'CAA', 'issue': 'amazon.com', 'critical': 0}
{'type': 'CAA', 'critical': 0, 'issuewild': 'digicert.com; cansignhttpexchanges=yes'}
{'type': 'CAA', 'critical': 0, 'issuewild': 'ssl.com'}
{'type': 'CAA', 'issue': 'amazonaws.com', 'critical': 0}
{'type': 'CAA', 'issue': 'awstrust.com', 'critical': 0}
{'type': 'CAA', 'issue': 'letsencrypt.org', 'critical': 0}
{'type': 'CAA', 'issue': 'amazontrust.com', 'critical': 0}
{'type': 'CAA', 'issue': 'comodoca.com', 'critical': 0}
{'type': 'CAA', 'critical': 0, 'issuewild': 'letsencrypt.org'}
{'type': 'CAA', 'issue': 'pki.goog; cansignhttpexchanges=yes', 'critical': 0}
RegistrationCSC Corporate Domains, Inc.
registrarCSC Corporate Domains, Inc.
registered1998-04-18
expires2026-12-30
last changed2026-08-12
ownerCambridge University Press
nameserverslex.ns.cloudflare.com
nucum.ns.cloudflare.com
statusclient transfer prohibited
registered 1998-04-18expires 2026-12-30
HTTPS certificate75 days left
validyes
issuerGoogle Trust Services
coverscambridge.org, resource.cambridge.org, *.resource.cambridge.org
protocolTLSv1.2
issued 2026-10-13expires 2027-01-11
DNSSECinsecure

Domain is not signed with DNSSEC

. → org → cambridge.org
Email authenticationgood
SPFwarning v=spf1 redirect=390fwuvj._spf._d.mim.ec
DMARCwarning policy none
DKIMfound: mx

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

Security scoregrade B · 156/205
Basic Security
10/40missing: DNSSEC Enabled, Nameserver Diversity
Record Security
31/45missing: SPF Record, DMARC Record, DKIM Presence
Advanced Security
20/25missing: IPv6 Support
Domain Reputation
50/50
Threat Detection
45/45missing: Domain Age Check
Blocklists0 listings · 8 lookups
SURBL MultidomainURIBL MultidomainSpamCop104.17.110.190Barracuda104.17.110.190UCEPROTECT Level 1104.17.110.190SpamCop104.17.111.190Barracuda104.17.111.190UCEPROTECT Level 1104.17.111.190

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=cambridge.org" \ -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=cambridge.org"

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

Watch cambridge.org. 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