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
science.nasa.gov
Current Trust Summary
This GoGuides Trust Record summarizes the current measured state for science.nasa.gov.
Trust Status
Public trust record
First recorded by GoGuides: 2026-02-21 08:33:04
First recorded by GoGuides: 2026-02-21 08:33:04
Public Eligibility
Eligible for public trust display.
Current Grade
A / AI Rank 81
Crawl Freshness
Fresh
Last crawled 11 hours ago
Last crawled 11 hours ago
Domain Provenance Record
16 measurements across 151 days
Stability Window
151 days
Trust Record
Public Trust Record for science.nasa.gov.
Own this site? Copy this trust record code.
GOGUIDES
Public Trust Record
Rank: A • View Details
Canonical URL
https://science.nasa.gov/
Matched URL
https://science.nasa.gov/
AI Rank
81
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://science.nasa.gov/
Observed Public IP Address
192.0.66.161
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 2026-06-30 08:53:36 to 2026-09-28 08:53:35
Valid 2026-06-30 08:53:36 to 2026-09-28 08:53:35
Observed Provenance States
10 stored states across
10 observations
Observed State Changes
Content: 5
Robots: 0
DNS: 0
TLS certificate: 0
Final URL: 0
Robots: 0
DNS: 0
TLS certificate: 0
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://science.nasa.gov/
https://science.nasa.gov/
Final URL
https://science.nasa.gov/
https://science.nasa.gov/
HTTP Status
200
200
Redirect Count
0
0
Content Type
text/html; charset=UTF-8
text/html; charset=UTF-8
Response Bytes
368,895
368,895
Canonical URL
https://science.nasa.gov/
https://science.nasa.gov/
Observed Page Title
NASA Science
NASA Science
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)
192.0.66.161
192.0.66.161
Observed Nameservers
Not observed
Not observed
TLS Certificate Issuer
CN=YE2,O=Let's Encrypt,C=US
CN=YE2,O=Let's Encrypt,C=US
TLS Valid From
2026-06-30 08:53:36
2026-06-30 08:53:36
TLS Valid Until
2026-09-28 08:53:35
2026-09-28 08:53:35
First Observed
2026-08-15 00:09:40
2026-08-15 00:09:40
Last Observed
2026-08-15 00:09:40
2026-08-15 00:09:40
Identical-State Observations
1
1
▶ Show Cryptographic Evidence & SHA-256 Hashes ▼ Cryptographic Evidence & SHA-256 Hashes
Title SHA-256
dc15e29dd2ba9ebadacfcf174563202e9dfc8f4ea0cc8273c89ab9c710bbd47f
dc15e29dd2ba9ebadacfcf174563202e9dfc8f4ea0cc8273c89ab9c710bbd47f
Content SHA-256
d2e18d4fbea89cad48ba5047764e42044523da55019eb2af8fcba187559f2d7c
d2e18d4fbea89cad48ba5047764e42044523da55019eb2af8fcba187559f2d7c
HTTP Body SHA-256
a02826726e651dc6a6d2fd989dc2b97f43428d9042c7e1bb179760bce34eb2a1
a02826726e651dc6a6d2fd989dc2b97f43428d9042c7e1bb179760bce34eb2a1
robots.txt SHA-256
a040536bacce7845d5ebbb6aafe55a058159db1898404dbb1f453dde835cfeb4
a040536bacce7845d5ebbb6aafe55a058159db1898404dbb1f453dde835cfeb4
DNS State SHA-256
e8e09f9711cd3fee6060f35a8dff4bc9e230ac1e271b9cf499d7d707c1899306
e8e09f9711cd3fee6060f35a8dff4bc9e230ac1e271b9cf499d7d707c1899306
TLS Certificate SHA-256
350407da8a85b9479828448166ae174e3c68b0cc8bed4a89be2a4681cfdbd1cb
350407da8a85b9479828448166ae174e3c68b0cc8bed4a89be2a4681cfdbd1cb
Complete Provenance State SHA-256
f183cd8d995248e1d0fbe8e4e7551e0c4ee7301dc5080d430f28d0432c5fe942
f183cd8d995248e1d0fbe8e4e7551e0c4ee7301dc5080d430f28d0432c5fe942
First Seen by GoGuides
2026-02-21 08:33:04
Last Crawled by GoGuides
2026-08-15 00:09:40 (11 hours ago)
Last Record Refresh
2026-08-15 04:29:27 (6 hours ago)
Record Refresh Freshness
Fresh
Last refreshed 6 hours ago
Last refreshed 6 hours ago
Stored Measurement Age
151 days
Trust Record Age
175 days ago
Stored Trust Measurements
16
Measurement Span
151 days across 16 stored measurements
Stability Window
151 days
Current Trust State Since
2026-03-16 12:24:44 (151 days ago)
Days Since Last Change
151 days
Rank/Algo State Changes
1
Trust Record Fingerprint (SHA-256)
63c5416c5203f413790b5be7455145861d4c3b3478fcee198a479db751f5edba
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 04:29:27 | rank 81 | crawled 2026-08-15 00:09:40 | v163c5416c5203f413790b5be7455145861d4c3b3478fcee198a479db751f5edba
2026-08-14 19:39:02 | rank 81 | crawled 2026-08-14 15:01:09 | v1
84e74e691982796c4f9ddcd1227f44baaf7b0ea9f8d75270824a87971b01cbf0
2026-05-10 15:16:05 | rank 79 | crawled 2026-05-10 08:09:10 | v1
063a16dade8b13ca3c4d25df2c29b8925f21e904d05696d73257179c40490993
2026-05-08 20:06:23 | rank 81 | crawled 2026-05-04 18:54:45 | v1
17832e552dfb55b7d1665e987d5ec20ce50a6c4092990648d360acba5bed872e
2026-05-03 14:59:32 | rank 81 | crawled 2026-05-03 06:54:55 | v1
1e3a998cc2f37b407b5a2f4ee04acdcbd7ffc5ea3d115ecd5115338ca6d9d040
2026-05-01 20:05:45 | rank 81 | crawled 2026-04-30 06:54:17 | v1
7b0fcd66e343d092881886b7e450ca4d4f4bc66949899c46b8b3ac96a8eb3b1c
2026-04-25 11:07:12 | rank 81 | crawled 2026-04-25 06:53:04 | v1
353e67990db33572413648369a25e28d29c2e2602869fdf63728118b80fdaf43
2026-04-24 20:17:52 | rank 79 | crawled 2026-04-20 18:48:15 | v1
9b90170a2828ab29457b643002d7e4ecbf1895d1a9c2dd5c2823d9a736551914
2026-04-19 14:52:16 | rank 79 | crawled 2026-04-18 15:45:10 | v1
919c945e2f1f2cf547c33933eceac161218a570cfade0d8f34a1302c69e0c589
2026-04-17 20:06:45 | rank 79 | crawled 2026-04-13 17:38:18 | v1
a25e592c0d2e7a407d8b0cca152dd03c82273d1bb0494592f8acc7f9fffd6ea9
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.