Registered 29 years ago, on no blocklists we checked, valid HTTPS, the site answered 200 in 769 ms.
Rule-based: domain age, blocklists, TLS. A heuristic, not a guarantee.

| A | 192.0.66.108 |
|---|---|
| AAAA | 2a04:fa87:fffd::c000:426c |
| MX | 0 nasa-gov.mail.protection.outlook.com |
| NS | a14-67.akam.net a12-64.akam.net a5-66.akam.net a9-64.akam.net a8-66.akam.net a1-32.akam.net |
| TXT | google-site-verification=BUxd0xTJY4ZjGohBwKDpNms-yOATz92Y54kgme4eKHs atlassian-sending-domain-verification=4730ddf4-d24e-4a91-9612-cb14998d0e47 google-site-verification=ZKpcXLqaBX3jND8Fybkvr3MaaOpC_6MRjXBYm0XNkJQ amazonses:PvUL7T41LO87xjr+2nfgxTu11i75NeT9HzY3xYv82Ko= apple-domain-verification=qw51K0kGzRHLbN9S asv=12d88629ae88f5017642bfc4981f8dd7 docusign=4025560e-93c9-4920-bb13-849c6fc35d58 nmh1f9tgxhmfmjkshg7qh595drdfgnf1 n39n7frbwnkhcmky2nps779y4ttn61wl amazonses:FXFVeQnEO3Wua+aY/H4aOIH3sSwteE+7YpGrwm8kF/s= uechcfoubh169akghg2214p54n webexdomainverification.1YPST=f98a61ea-b92e-41f2-87aa-5651b2af43b8 smartsheet-site-validation=gnL11HAQqHlH1tQabmxKf12b5ZCNxJfx mj8729pr7k44dx62wwtx5745xr5njzkn openai-domain-verification=dv-CO0ENDLO7EB9V5E4JnmE6pS8 MS=ms93625004 pvv8mevb6qrmqvqi8alhmreg42 atlassian-domain-verification=oNzRM7G9GIAL/LLP5c7sPOQiAHsHrQ1hKcU7GGZ0ADRZJFhUB/upe935/2RYq/jO HRlHXyx8jXo+9pIaJWFVBPOLVfeI2biAj3VT1woaTFpp05D5/q6AoD5KpUgws539/d2jl8wBJiEr58OEsRVugQ== openai-domain-verification=dv-Fbq5PVntP9qLelQPUBKniDjr v=spf1 include:_spf-4a.nasa.gov include:_spf-4b.nasa.gov include:_spf-4c.nasa.gov include:_spf-4d.nasa.gov include:_spf-4g.nasa.gov include:_spf-4m.nasa.gov include:_spf-4x.nasa.gov include:_spf-6a.nasa.gov include:spf.protection.outlook.com -all 1HqDXPHdt8JOt02qy6FB+l3+Z1zXScqcPxlE/faXjZLS9FRbVhHCUCHQE2bWofZt2TWKPchjjma3Pqli4FULFw== |
| registrar | get.gov |
|---|---|
| registered | 1997-10-02 |
| expires | 2027-07-31 |
| last changed | 2026-08-14 |
| owner | National Aeronautics and Space Administration |
| country | United States |
| nameservers | a1-32.akam.net a12-64.akam.net a14-67.akam.net a5-66.akam.net a8-66.akam.net a9-64.akam.net |
| status | server transfer prohibited |
| valid | yes |
|---|---|
| issuer | Let's Encrypt |
| covers | nasa.gov, www.nasa.gov |
| protocol | TLSv1.3 |
Domain is properly signed — chain validated by an independent validating resolver
| SPF | pass v=spf1 include:_spf-4a.nasa.gov include:_spf-4b.nasa.gov include:_spf-4c.nasa.gov include:_spf-4d.nasa.gov include:_spf-4g.nasa.gov include:_spf-4m.nasa.gov include:_spf-4x.nasa.gov include:_spf-6a.nasa.gov include:spf.protection.outlook.com -all |
|---|---|
| DMARC | pass policy reject |
| DKIM | found: selector1 |
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 nasa.gov.
Reference: /llms.txt.
Watch nasa.gov. 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