On no blocklists we checked, valid HTTPS, the site answered 200 in 161 ms.
Rule-based: domain age, blocklists, TLS. A heuristic, not a guarantee.

| A | 23.185.0.4 |
|---|---|
| AAAA | 2620:12a:8000::4 2620:12a:8001::4 |
| MX | 10 usb-smtp-inbound-2.mimecast.com 10 usb-smtp-inbound-1.mimecast.com |
| NS | ns2.arizona.edu ns4.arizona.edu ns1.arizona.edu ns3.arizona.edu |
| TXT | google-site-verification=35N1tSLMW9z2uwk1-8lJqfTCuXYuUrGFpfF8GE3-Yy4 v=spf1 redirect=7hkvzptr._spf._d.mim.ec atlassian-domain-verification=mNZ0MwCf5iWJhkLrawrB8FBObJxNjvYM5HLcy449w9ZStInVMGnsVvfygxzZl0NE sophos-domain-verification=2586001100bd8c8b6cafff14012013a6fd3c5ede4a4c00883e64fd169747b145 4142B7A4074F3CDBC2B5965D0705E338 sophos-domain-verification=44e0f41621d87f620ec796c9f2152cd1674045f5242f3e6189d1ff98020aac58 google-site-verification=3_W-LsyREcc6TUUJFFwVIsUBXWTqMdd5vVKcsbWqP3c atlassian-domain-verification=ES94l3GmUvDBsp50UTUBNhg3ajIoCIdqIidNQblv3vvBUBaDCiu2IU6a2ct0j1Z8 d365mktkey=Nohfyx5FLmdmtCQXEexHH1OiSSqRT7j0hqJyKTFUpGMx sophos-domain-verification=87e4643d004eab966e575a370952f3a5b797d4062be121059e2c96027f6d4486 asv=fa932460805290ab3e37385c77e35bae TnepNYdP462BgcnI UA Campus Network 198.60.152.0/24 e2ma-verification=8zg jamf-site-verification=6A6Ip32Wh4v4uZIdWCLC2g google-site-verification=USB08R_Co0Rc7KU12xyGt8zHvYJqLlEZaii-4-i0Vj8 atlassian-sending-domain-verification=70870acb-3638-4afe-a11c-7430e8f24003 brevo-code:59b3a18744d24f960bd78166f34f87c5 mandrill_verify.fFJYWwkPVM_JtMfsga7E7w cisco-ci-domain-verification=4979fa9a4f35fa838213e5584a42d03bc9b7471de8aecb8e5c35ddff9f341a1e MS=ms40012895 apple-domain-verification=jmQe832xe1XXKYcO airtable-verification=8bf69d1cc604393877a4a3774b4ace32 _globalsign-domain-verification=izgsITLkfZm2smYqyfQfHKavyInHOYe9MitDNa7RQU MS=5C6674694CD6FA2EDE161F6871107FB9C432B99C brevo-code:99f7dc28b8f143fe55a3b7640ef52f99 google-site-verification=J9li8jBvtpY9ekc2FR5a6m7Mq5m0avK_iP6fWROCi5g 99b13054f116de43917dd122e7df4c7c3961811034fa4fd39d sophos-domain-verification=932f3cb9400b3f037acba22717426a999d4aa2f524138065efb2e05d8c6064b0 pardot586353=9ea2484b018904a444376f3cee23019027055b5c718f0ef366ed081a7ddb581c e2ma-verification=87zbb d365mktkey=mAW34Y9KNCu5tYAErP2Li1Gs2J2sNxlvXgULSgurxtwx adobe-idp-site-verification=e27c4eece2e5df59eaee045adaef012decbb2439bc6a0722f0f1b425fc1ddf51 ce7ea81f27ade1ce19579fdee9b2dd40 autodesk-domain-verification=K8cdX6TSE-D46DS7CUpG klaviyo-site-verification=WND2kS klaviyo-site-verification=UrxG2U airtable-verification=781917ba2011d4705c9f3e37380688eb www.geneious.com:domain-verification=K4jGC7VIHx88N88kjAMXvA |
| valid | yes |
|---|---|
| issuer | Let's Encrypt |
| covers | admissions.arizona.edu, arizona.edu, bae.arizona.edu, beardown.arizona.edu, degreesearch.arizona.edu, diversity.arizona.edu, neversettle.arizona.edu, students.arizona.edu, transfer.arizona.edu, uaforyou.arizona.edu, visit.arizona.edu, visitorcenter.arizona.edu |
| protocol | TLSv1.3 |
Domain is properly signed — chain validated by an independent validating resolver
| SPF | warning v=spf1 redirect=7hkvzptr._spf._d.mim.ec |
|---|---|
| DMARC | pass policy quarantine |
| DKIM | found: selector1, selector2, k1, s1, s2, mail |
Whether mail claiming to be from this domain can be checked as genuine.
Green: clean. Red: listed. Grey: the list did not answer.
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.
MCP: add https://how.is/mcp to Claude, Codex or Cursor
(one-line install) and ask for domain_trust on arizona.edu.
Reference: /llms.txt.
IPv6. Does arizona.edu work over IPv6? See the live check on aaaa.bot — website, mail and nameservers, graded A–F.
Watch arizona.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