HOW.IS
?

How is clemson.edu?

Not sure yet risk 10/100

On no blocklists we checked, valid HTTPS, the site answered 200 in 328 ms.

Why

02050100
finecarefulhigh risk
  • +10Could not read the domain's registration record.
  • ·Could not check registration; retry before trusting this domain.

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

How clemson.edu looks right now
The home page, rendered by how.is in a sandboxed browser. Nothing on it is clickable here.
Site
200
328 ms · ends at www.clemson.edu
HTTPS
158 d
left on a Internet2 certificate
Age
?
creation date not reported
Blocklists
0
listings across 5 lists

Everything we looked at

DNS records6 record types
A130.127.204.30
AAAA2620:103:a004:36::30
MX0 clemson-edu.mail.protection.outlook.com
NSextns1.clemson.edu
extns3.clemson.edu
extns2.clemson.edu
TXTapple-domain-verification=JavcMPNMoxgzUjfi
adobe-idp-site-verification=13f1cc18-6ae6-4077-9a4f-d1f20a727eb0
solarwinds-service0desk-verification=b056c9b8349a500fe2df91069fe1a44e
873688d59ffa4e0c1fafabdf048935b8.clemson.edu
wrike-verification=NTg3Mzk1MzozMTA1MzcyMmZmMjgzNGQ3YzliNzJhMzY0OGFlM2I5Njg1MTU1NDgxMGUzZDViYzI0OThiM2RjOWE4NjE1OWMw
MS=ms25870385
v=spf1 ip4:130.127.0.0/16 include:spf.protection.outlook.com include:spf0.clemson.edu ip4:198.187.196.100 ip4:198.187.196.130 include:%{ir}.%{v}.cu.spf.clemson.edu ~all
brevo-code:24a75aa9aa179addd5f8cf385cb6572a
2a21cb707665c2ed4a7df0127f749f11b7612a771152a395dc0704bc6ada709e
anthropic-domain-verification-gwbf8c=m8jWnu61et04M1EOAiCCO4SeB
ibmid=e4156f6a-b08e-4838-bbb9-41c0c9125815
F3959D79CF7ACB98D15432C73DA26545
status-page-domain-verification=dcgz9nd14fg4
evidence-domain-verification-40tdgv=bx0z96IHvrNboCokq5JeV3dGH
smartsheet-site-validation=nsTXLGIWKjChPpP3umKKPI0Tol_ErOlE
QNrJWkzdvejgfzMzXds5YBtpMDvIL3F2QhYsouk29NlyEhktTx9bCOXH+XEw9Up/is+8f5GwF/1Hzg3Lb354dg==
poll-everywhere-2-0-domain-verification-gr8gf9=37HwdsovEXRssRprmL0Njj9WE
openai-domain-verification=dv-4xC89x3xLbn8GlbLV4Xr5J57
sprout-social-9ee7082b-db69-4d0c-aeec-0693dfe470d9
3YKAXO3FY2KWCQAIKRNQ3BWCNQH9QYJSW5MWNYYQJ
google-site-verification=8QBFHdecJLrDer2g8wB5tHpA9NWYSsg5byDquqZR0IE
e2ma-verification=9mveb
CAA{'type': 'CAA', 'issue': 'letsencrypt.org', 'critical': 0}
{'type': 'CAA', 'issue': 'sectigo.com', 'critical': 0}
{'type': 'CAA', 'issue': 'emsign.com', 'critical': 0}
{'type': 'CAA', 'issue': 'amazonaws.com', 'critical': 0}
{'type': 'CAA', 'issue': 'amazontrust.com', 'critical': 0}
Registrationregistrar not reported
HTTPS certificate158 days left
validyes
issuerInternet2
coversclemson.edu, *.clemson.edu
protocolTLSv1.2
issued 2026-03-09expires 2027-04-09
DNSSECinsecure

Domain is not signed with DNSSEC

. → edu → clemson.edu
Email authenticationexcellent
SPFpass v=spf1 ip4:130.127.0.0/16 include:spf.protection.outlook.com include:spf0.clemson.edu ip4:198.187.196.100 ip4:198.187.196.130 include:%{ir}.%{v}.cu.spf.clemson.edu ~all
DMARCpass policy reject
DKIMfound: default, selector2, k1, s1, s2

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

Security scoregrade B · 170/205
Basic Security
10/40missing: DNSSEC Enabled, Nameserver Diversity
Record Security
45/45missing: DKIM Presence
Advanced Security
20/25missing: Mail Server Configuration
Domain Reputation
50/50
Threat Detection
45/45missing: Domain Age Check
Blocklists0 listings · 5 lookups
SURBL MultidomainURIBL MultidomainSpamCop130.127.204.30Barracuda130.127.204.30UCEPROTECT Level 1130.127.204.30

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=clemson.edu" \ -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=clemson.edu"

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

IPv6. IPv6 readiness grade for clemson.edu Does clemson.edu work over IPv6? See the live check on aaaa.bot — website, mail and nameservers, graded A–F.

Watch clemson.edu. 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