GoGuides Trust Record
Enter a domain to view its GoGuides Website Trust Record, including measured trust signals, canonical website URL, observation history, current trust state, trust record fingerprint, and crawl timing.
Website Trust Record
nasa.gov
Current Trust Summary
This GoGuides Trust Record summarizes the current measured state for nasa.gov.
Trust Status
Public trust record
First recorded by GoGuides: 2026-01-11 23:18:09
First recorded by GoGuides: 2026-01-11 23:18:09
Public Eligibility
Eligible for public trust display.
Current Grade
A / AI Rank 83
Crawl Freshness
Fresh
Last crawled 4 hours ago
Last crawled 4 hours ago
Domain Provenance Record
22 measurements across 153 days
Stability Window
1 day
Trust Record
Public Trust Record for nasa.gov.
Own this site? Copy this trust record code.
GOGUIDES
Public Trust Record
Rank: A • View Details
Canonical URL
https://nasa.gov/
Matched URL
https://nasa.gov/
AI Rank
83
Grade
A
Domain Provenance Timeline
Independent GoGuides observations showing when this domain was first recorded, how long it has been observed, and when its recorded state changed.
Observed Web & Network State
Objective state captured by GoGuides during its domain observation.
These fields describe what GoGuides observed and are separate from AI Rank or Grade.
HTTP Status
200
Observed Final URL
https://www.nasa.gov/
Observed Public IP Addresses
192.0.66.108, 2a04:fa87:fffd::c000:426c
Observed 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
Robots Access
Allowed
allowed
allowed
Page Robots Directive
follow, index, max-snippet:-1, max-video-preview:-1, max-image-preview:large
TLS Certificate
CN=YE2,O=Let's Encrypt,C=US
Valid 2026-08-11 23:22:59 to 2026-11-09 23:22:58
Valid 2026-08-11 23:22:59 to 2026-11-09 23:22:58
Observed Provenance States
13 stored states across
13 observations
Observed State Changes
Content: 5
Robots: 0
DNS: 0
TLS certificate: 1
Final URL: 0
Robots: 0
DNS: 0
TLS certificate: 1
Final URL: 0
Observed Evidence Details
These are objective observations recorded by the GoGuides crawler.
They are separate from GoGuides AI Rank, Grade, or other interpretation.
Observation Type
Full Page Observation
Full Page Observation
Requested URL
https://nasa.gov/
https://nasa.gov/
Final URL
https://www.nasa.gov/
https://www.nasa.gov/
HTTP Status
200
200
Redirect Count
1
1
Content Type
text/html; charset=UTF-8
text/html; charset=UTF-8
Response Bytes
337,060
337,060
Canonical URL
https://www.nasa.gov/
https://www.nasa.gov/
Observed Page Title
NASA
NASA
Robots Access
Allowed
Allowed
Robots Reason
allowed
allowed
Meta Robots
follow, index, max-snippet:-1, max-video-preview:-1, max-image-preview:large
follow, index, max-snippet:-1, max-video-preview:-1, max-image-preview:large
X-Robots-Tag
Not observed
Not observed
Observed Public IP Address(es)
192.0.66.108, 2a04:fa87:fffd::c000:426c
192.0.66.108, 2a04:fa87:fffd::c000:426c
Observed 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
a1-32.akam.net, a12-64.akam.net, a14-67.akam.net, a5-66.akam.net, a8-66.akam.net, a9-64.akam.net
TLS Certificate Issuer
CN=YE2,O=Let's Encrypt,C=US
CN=YE2,O=Let's Encrypt,C=US
TLS Valid From
2026-08-11 23:22:59
2026-08-11 23:22:59
TLS Valid Until
2026-11-09 23:22:58
2026-11-09 23:22:58
First Observed
2026-08-15 17:06:34
2026-08-15 17:06:34
Last Observed
2026-08-15 17:06:34
2026-08-15 17:06:34
Identical-State Observations
1
1
▶ Show Cryptographic Evidence & SHA-256 Hashes ▼ Cryptographic Evidence & SHA-256 Hashes
Title SHA-256
06552eff6885a0591452b0cb2ebd87668a5116026fead8501658104978541aa5
06552eff6885a0591452b0cb2ebd87668a5116026fead8501658104978541aa5
Content SHA-256
a7d7726d2d41e38a228bcffa5ab4fb0b9415c3eb1eb6a8bedbba08200a75a1f9
a7d7726d2d41e38a228bcffa5ab4fb0b9415c3eb1eb6a8bedbba08200a75a1f9
HTTP Body SHA-256
8fc3a42baa8cab1f3a39894dfc14126648acca8bc19429627b978c28786ae0f0
8fc3a42baa8cab1f3a39894dfc14126648acca8bc19429627b978c28786ae0f0
robots.txt SHA-256
44d72c5ad1a94bb45f25caaba917c39b39b383af3a121b59a5a7e46fbe3ccb05
44d72c5ad1a94bb45f25caaba917c39b39b383af3a121b59a5a7e46fbe3ccb05
DNS State SHA-256
b0d71a0937e250c63bdaeb1c178a35dd40ace892ad2b68f3489ef999699f9b2f
b0d71a0937e250c63bdaeb1c178a35dd40ace892ad2b68f3489ef999699f9b2f
TLS Certificate SHA-256
1f5bf1348d29e8bd6d87069f5947f4626a8f8d8e4024997d54431ad56df526c1
1f5bf1348d29e8bd6d87069f5947f4626a8f8d8e4024997d54431ad56df526c1
Complete Provenance State SHA-256
f8875a3cd5ca98f7d97901b815dc7a8656ce2c3ea7e7a830bd4e9ad42f604a02
f8875a3cd5ca98f7d97901b815dc7a8656ce2c3ea7e7a830bd4e9ad42f604a02
First Seen by GoGuides
2026-01-11 23:18:09
Last Crawled by GoGuides
2026-08-15 17:06:34 (4 hours ago)
Last Record Refresh
2026-08-15 21:09:30 (just now)
Record Refresh Freshness
Fresh
Last refreshed just now
Last refreshed just now
Stored Measurement Age
153 days
Trust Record Age
215 days ago
Stored Trust Measurements
22
Measurement Span
153 days across 22 stored measurements
Stability Window
1 day
Current Trust State Since
2026-08-14 16:34:06 (1 day ago)
Days Since Last Change
1 day
Rank/Algo State Changes
2
Trust Record Fingerprint (SHA-256)
91a02c8b69c5e857104bb973c3edd2731413dbe54842496f500ce762b74c52f1
Computed from: matched URL + rank + last crawled + algorithm version. This identifies the GoGuides trust record state; it is not domain-owner verification.
Provenance Observation History
This timeline shows when GoGuides recorded this trust state, including rank, crawl timing, algorithm version, and verification fingerprint.
2026-08-15 21:09:30 | rank 83 | crawled 2026-08-15 17:06:34 | v191a02c8b69c5e857104bb973c3edd2731413dbe54842496f500ce762b74c52f1
2026-08-15 17:05:16 | rank 83 | crawled 2026-08-15 16:36:10 | v1
e1aa9d6b1f68bcc1a8262137ebfa95e91c3c0f323428b2451276f5f0c9b8b048
2026-08-14 16:34:06 | rank 83 | crawled 2026-06-14 01:59:16 | v1
6c11e2754125f902637ad402b1deedb3c35820565bdd6d6402e256d019e6bcbb
2026-05-10 03:58:13 | rank 79 | crawled 2026-05-07 21:34:47 | v1
5293ad3628c421c40cef2ae0cbb6394e7807d44e8599deffe83c3c3d4447932b
2026-05-07 03:01:56 | rank 81 | crawled 2026-05-03 09:25:36 | v1
2fc4a0b8857f3609259560321e62a44bf6ecb6670d04b54932a27f72f60f0a95
2026-05-03 03:55:24 | rank 81 | crawled 2026-05-01 09:24:50 | v1
ac881249063bbd767344b6bc55c3e7f7d3f1cd5190aa58a08787575fda6c0830
2026-04-26 10:49:04 | rank 81 | crawled 2026-04-26 09:23:17 | v1
fe38a7556438f7e9fdaffb02e81e5aa722c813beb9c4c0a8c92492e1f653a338
2026-04-26 03:56:39 | rank 79 | crawled 2026-04-24 09:21:19 | v1
67001ecb1d1e79e91c3ce6820ccda0f6d18c8a5572414d14f44d707f246103ec
2026-04-23 17:45:37 | rank 79 | crawled 2026-04-23 09:21:14 | v1
c685cd792b3bacf84d8be21258ae986afaedaa4723e6ffa8d5f824134195aff9
2026-04-23 03:01:00 | rank 79 | crawled 2026-04-19 09:21:18 | v1
884644425eaa8ad7408d1774bc21560b700a98dc2b870cefff42ffb268d036e0
Trust Favicon Previews
These favicons are generated directly from GoGuides trust measurements for the site. They are not decorative — the design is derived from the same data used to evaluate the domain (AI Rank and crawl timing). Because the favicon is generated from these measurements, the same inputs always produce the same trust favicon. Each favicon is therefore unique to the website it represents. If the favicon ever appears different elsewhere, verify the record here to confirm the current measured state.
Related GoGuides AI Visibility & Trust Utilities
These GoGuides utilities work together: explain crawler activity, inspect AI visibility gaps, compare robots.txt with trust-layer signals, check verified text records, and activate a public Trust Signal when a domain is ready.