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nasa.gov
Security, TLS & performance report · checked 2026-11-01T04:24:57Z · category: gov
Security headers: D 33/100
(rank #334 of 461) · TLS: TLSv1.3 ·
Cert expires in 70 days (rank #207 of 459 soonest)
· Response: 49.8 ms (rank #45 of 446)
Certificate valid for 70 more days (until Jan 10 22:24:42 2027 GMT).
TLS certificate
| Field | Value |
| Issuer | Let's Encrypt |
| Subject CN | nasa.gov |
| Valid until | Jan 10 22:24:42 2027 GMT |
| Days left | 70 |
| TLS version | TLSv1.3 |
| SAN entries | 2 |
Security headers (33/100, grade D)
| Header | Status |
|---|
strict-transport-security | max-age=31536000;includeSubdomains;preload |
x-frame-options | SAMEORIGIN |
content-security-policy | missing |
x-content-type-options | missing |
referrer-policy | missing |
permissions-policy | missing |
Availability & performance
| Field | Value |
| Availability | 100% (3/3 probes) |
| Avg response | 49.8 ms |
| Fastest / slowest | 35.2 / 76.1 ms |
| HTTP status | 200 (https) |
| Server | nginx |
DNS & robots.txt
| Field | Value |
| A records | 192.0.66.108 |
| Nameservers | a1-32.akam.net, a5-66.akam.net, a8-66.akam.net, a9-64.akam.net |
| MX records | 1 |
| robots.txt | present (0 sitemap refs, 0 disallow rules) |
How nasa.gov compares
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free tools or the API. Last built 2026-11-01.