Registered 31 years ago, on no blocklists we checked, valid HTTPS, the site answered 200 in 58 ms.
Rule-based: domain age, blocklists, TLS. A heuristic, not a guarantee.

| A | 151.101.64.152 151.101.192.152 151.101.0.152 151.101.128.152 |
|---|---|
| MX | 10 IthakaHarbors-org.mail.protection.outlook.com |
| NS | usnyny1ns05.ithaka.org usnjpr2ns04.ithaka.org usnjpr2ns02.ithaka.org usaeaz1ns03.ithaka.org usmiaa1ns03.ithaka.org usnjpr2ns01.ithaka.org usaeaz1ns05.ithaka.org |
| TXT | MS=ms59722565 facebook-domain-verification=t7mhq4udodhlfom0rn909rrhmrcq7f openai-domain-verification=dv-EAO0jUA8iKZCqlqYfddXpA3R u1h2sp5uvkoufuh88hdvhk9orc. _globalsign-domain-verification=-lBuNJDFRxDkLkNbYOLBU03PlWjnPqAzBPAVUokhAw sending_domain1053043=a4a2b757167b9ba217895b3e2bb19f3873b9db5b7c0e9b4c6dd2c98c32b93935 pardot1053043=4a6c81f133c99f6b859af420931577c383a1b1cd4e153d11ddb1b150a902b382 v=spf1 mx include:spf.protection.outlook.com include:u1397501.wl.sendgrid.net include:mail.zendesk.com include:aspmx.pardot.com ~all google-site-verification=fUzFvqROnu3S1gFEmkwguY42PzRgOFzwg4qQMP24sU4 |
| registrar | Network Solutions, LLC |
|---|---|
| registered | 1996-02-16 |
| expires | 2031-02-17 |
| last changed | 2026-08-12 |
| owner | hidden by privacy service |
| nameservers | usnjpr2ns02.ithaka.org usmiaa1ns03.ithaka.org usnjpr2ns04.ithaka.org usnjpr2ns01.ithaka.org usnyny1ns05.ithaka.org usaeaz1ns03.ithaka.org usaeaz1ns05.ithaka.org |
| status | client transfer prohibited |
| valid | yes |
|---|---|
| issuer | GlobalSign nv-sa |
| covers | jstor.org, *.aluka.org, *.apps.prod.jstor.org, *.apps.test.jstor.org, *.artstor.org, *.cdn.aluka.org, *.cdn.jstor.org, *.forum.jstor.org, *.ithaka.org, *.j-img.org, *.jstor.org, *.sharedshelf.artstor.org |
| protocol | TLSv1.3 |
Domain is not signed with DNSSEC
| SPF | pass v=spf1 mx include:spf.protection.outlook.com include:u1397501.wl.sendgrid.net include:mail.zendesk.com include:aspmx.pardot.com ~all |
|---|---|
| DMARC | pass policy quarantine |
| DKIM | found: selector1, s1, s2 |
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 jstor.org.
Reference: /llms.txt.
Watch jstor.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