HOW.IS
?

How is ucsd.edu?

Not sure yet risk 10/100

On no blocklists we checked, valid HTTPS, the site answered 200 in 329 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 ucsd.edu looks right now
The home page, rendered by how.is in a sandboxed browser. Nothing on it is clickable here.
Site
200
329 ms
HTTPS
162 d
left on a Internet2 certificate
Age
?
creation date not reported
Blocklists
0
listings across 5 lists

Everything we looked at

DNS records4 record types
A99.83.137.54
75.2.44.127
MX10 inbound.ucsd.edu
5 inbound.ucsd.edu
NSns-auth1.ucsd.edu
ns-auth3.ucsd.edu
ns-auth2.ucsd.edu
TXTe2ma-verification=w0seb
e2ma-verification=rj4bb
e2ma-verification=o7efb
e2ma-verification=vkffb
facebook-domain-verification=vfwg0cvk3jy7xw2jouecsfbv5xhyuh
e2ma-verification=dpreb
e2ma-verification=6aefb
asv=f6b91b79ba467a96e4c78c42f5a46dea
e2ma-verification=72peb
e2ma-verification=v4gfb
e2ma-verification=szhfb
e2ma-verification=a14cb
airtable-verification=af55a9c95d7aa954666c40b139a4b208
google-site-verification=n0uEz8RJrvsL0wmI2D5XsQ0WU3z20EaZESJnQIOGY4k
e2ma-verification=19mfb
autodesk-domain-verification=EdgpshV6_ajJ0dGNwBiY
e2ma-verification=k0hfb
google-site-verification=A6IDqqCOkQZcPLlmFMbHSmA3HPmvK5tcQHXl_GlUQzc
atlassian-sending-domain-verification=426ed84b-d1f0-4350-958b-343f16639435
jamf-site-verification=lsIOm_p7vAKUjUi7yA1SoQ
e2ma-verification=wzgfb
e2ma-verification=43gfb
e2ma-verification=f0nib
e2ma-verification=fupeb
e2ma-verification=imffb
brevo-code:b1414e0a234265a2faa294058248ae06
e2ma-verification=2lffb
duo_sso_verification=HeEDV7uDb2Hyc481LzR704wzt4keOjPMUAlRaqpu6bpX9Qfo3h6EQf4meXTDxs9f
e2ma-verification=96chb
e2ma-verification=7dqeb
e2ma-verification=4qffb
e2ma-verification=lahfb
2rp1l3eq8tgh3qfan4tb0icrmc
atlassian-domain-verification=fJMZvZQHrDqzlqGrsMs6OyWAlFbvSDrT7mBm6oICHO6zw0P6z3eu0FKyO9g7H3Q9
e2ma-verification=j00bb
e2ma-verification=ppreb
atlassian-sending-domain-verification=ef7c2b00-f5a4-44d3-a2e9-9b605f769179
autodesk-domain-verification=Vsxupb6YzoE7JCUVEsjb
e2ma-verification=n2hfb
parallels-domain-verification=c5d1772aebcd4caabe0279e83a1af8d1b0e94ddc904d4f0abebead298b4862e7
MS=ms78242454
dtm-domain-verification=cva_6MNGblm77vJxHHF2eCnbf4eaX66-sZxMrPHiies
e2ma-verification=n8qeb
anthropic-domain-verification-nd629w=V55MDzBh55dwHUJ0Jas2eW8se
e2ma-verification=vvhfb
e2ma-verification=53gfb
google-site-verification=dCbfA6CBMfPnSVdR2J84hro6FQ9vF0IMWEkZDEv0ZFI
e2ma-verification=cbveb
e2ma-verification=59dfb
apple-domain-verification=LSDHI5JPsxeGcXK4APeZ8GhHhalMuylZ8XxJ1-qPBQk
v=spf1 include:spf.ucsd.edu include:e2ma.net ip4:148.163.151.62 ip4:148.163.155.15 ip4:132.239.0.0/25 include:app.aventri.com ~all
e2ma-verification=fx3cb
e2ma-verification=l3ncb
e2ma-verification=mfhfb
e2ma-verification=pprep
e2ma-verification=jmffb
google-site-verification=7nRURM14Y77x1_qLyBUfzj6nfKsEZ4FzJE28WbE_BJU
e2ma-verification=99dfb
e2ma-verification=2l0cb
e2ma-verification=rwycb
e2ma-verification=htwcb
apple-domain-verification=jMoGw2Qc3OJSHurJ
5t52g66v6e7mshpk6644mvs7ha
airtable-verification=6b11904e9898b36ec674b100da86c5cd
e2ma-verification=ntffb
D9566E00143467C958ADE693D8B8BBC2
atlassian-domain-verification=V6c3JpN4o8ecS6zdjpcbBoa6FaLQaHHbCQF0Y6HxyNlbckcLseRleOMeGItd3ehi
atlassian-domain-verification=9IuWihbdAcOtd/9Ta8jKHqDYvSkQyRqpB4t3GQIvqw4Y5iVrsaDodUhdF0dhhyro
docusign=6ed8bcc1-9514-4edd-b447-69e53565ce9f
Registrationregistrar not reported
HTTPS certificate162 days left
validyes
issuerInternet2
coversucsd.edu, *.ucsd.edu
protocolTLSv1.2
issued 2026-03-11expires 2027-04-11
DNSSECinsecure

Domain is not signed with DNSSEC

. → edu → ucsd.edu
Email authenticationexcellent
SPFpass v=spf1 include:spf.ucsd.edu include:e2ma.net ip4:148.163.151.62 ip4:148.163.155.15 ip4:132.239.0.0/25 include:app.aventri.com ~all
DMARCpass policy reject
DKIMfound: google, selector1, k1, s1, s2, smtp, fm1, fm2

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

Security scoregrade B · 155/205
Basic Security
10/40missing: DNSSEC Enabled, Nameserver Diversity
Record Security
30/45missing: CAA Records, 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 MultidomainSpamCop99.83.137.54Barracuda99.83.137.54UCEPROTECT Level 199.83.137.54SpamCop75.2.44.127Barracuda75.2.44.127UCEPROTECT Level 175.2.44.127

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=ucsd.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=ucsd.edu"

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

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

Watch ucsd.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