GoGuides Trust Record

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Website Trust Record physicscatalyst.com

Current Trust Summary

This GoGuides Trust Record summarizes the current measured state for physicscatalyst.com.

Trust Status
Public trust record
First recorded by GoGuides: 2026-01-08 23:56:26
Public Eligibility
Eligible for public trust display.
Current Grade
A / AI Rank 82
Crawl Freshness
Fresh
Last crawled 11 hours ago
Domain Provenance Record
3 measurements across 86 days
Stability Window
86 days

Trust Record

Public Trust Record for physicscatalyst.com.
Own this site? Copy this trust record code.
GOGUIDES
Public Trust Record
Rank: A • View Details
favicon
Canonical URL
https://physicscatalyst.com/
Matched URL
https://physicscatalyst.com/
AI Rank
82
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://physicscatalyst.com/
Observed Public IP Addresses
104.21.48.230, 172.67.188.85, 2606:4700:3034::6815:30e6, 2606:4700:3037::ac43:bc55
Observed Nameservers
isla.ns.cloudflare.com, roan.ns.cloudflare.com
Robots Access
Allowed
allowed
Page Robots Directive
Not observed
TLS Certificate
CN=WE1,O=Google Trust Services,C=US
Valid 2026-08-12 05:13:29 to 2026-11-10 06:10:07
Observed Provenance States
7 stored states across 7 observations
Observed State Changes
Content: 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
Requested URL
https://physicscatalyst.com/
Final URL
https://physicscatalyst.com/
HTTP Status
200
Redirect Count
0
Content Type
text/html; charset=UTF-8
Response Bytes
39,533
Canonical URL
https://physicscatalyst.com
Observed Page Title
The Physicscatalyst(Free Online Science,maths ,Biology ,Chemistry and physics resources)
Robots Access
Allowed
Robots Reason
allowed
Meta Robots
Not observed
X-Robots-Tag
Not observed
Observed Public IP Address(es)
104.21.48.230, 172.67.188.85, 2606:4700:3034::6815:30e6, 2606:4700:3037::ac43:bc55
Observed Nameservers
isla.ns.cloudflare.com, roan.ns.cloudflare.com
TLS Certificate Issuer
CN=WE1,O=Google Trust Services,C=US
TLS Valid From
2026-08-12 05:13:29
TLS Valid Until
2026-11-10 06:10:07
First Observed
2026-08-14 23:47:48
Last Observed
2026-08-14 23:47:48
Identical-State Observations
1
▶ Show Cryptographic Evidence & SHA-256 Hashes ▼ Cryptographic Evidence & SHA-256 Hashes
Title SHA-256
5baba4131064b6409335f037e67510e5a26fe7c403adf03ea80f1a64db125a36
Content SHA-256
4960d08ae8ebba5c4349a32bd31f136516864ee6b042d32d5f5bd3eb0584d9a8
HTTP Body SHA-256
8d189df3469f71dd7dc565ef71046647b9114bbebc025ae260b381abab97a69b
robots.txt SHA-256
9d31d7d90c6d715c5d02ab3c7c17e94c3d4d1497e7d168642afdfde83c76d588
DNS State SHA-256
aca331c50498fa2c9eee812ef9bf6d29076297c07f40e0ceefa80a4cecfa1125
TLS Certificate SHA-256
8b593a9a09dc4d08de92049ed2f7637f89ed111ff5a6acd687e834aa068edcd4
Complete Provenance State SHA-256
95f9ea6c3fe4018a5aee03ecfd1fca6fbb87c29ea9957a4c331e7bbc1ec62a5a
View Machine-Readable Provenance JSON
First Seen by GoGuides
2026-01-08 23:56:26
Last Crawled by GoGuides
2026-08-14 23:47:48 (11 hours ago)
Last Record Refresh
2026-08-15 11:06:05 (just now)
Record Refresh Freshness
Fresh
Last refreshed just now
Stored Measurement Age
86 days
Trust Record Age
218 days ago
Stored Trust Measurements
3
Measurement Span
86 days across 3 stored measurements
Stability Window
86 days
Current Trust State Since
2026-05-21 01:21:46 (86 days ago)
Days Since Last Change
86 days
Rank/Algo State Changes
0
Trust Record Fingerprint (SHA-256)
7b167b92ec018961270d548031d3b010fb7423f1108875ffebe8b3ffb4a3957d
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 11:06:05 | rank 82 | crawled 2026-08-14 23:47:48 | v1
7b167b92ec018961270d548031d3b010fb7423f1108875ffebe8b3ffb4a3957d

2026-05-30 19:32:46 | rank 82 | crawled 2026-05-29 06:28:12 | v1
204b03124279ecb2803431342374557fe61bd6c744ad6b912e85473662268ba3

2026-05-21 01:21:46 | rank 82 | crawled 2026-05-14 10:34:56 | v1
338b9e7605615e9b0a855cb9ae3aba2861f1218a1d1faed2a1d53ed5637830be

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.

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