GoGuides Trust Record

Enter a domain to view its GoGuides Website Trust Record, including observed measurements, canonical website URL, observation history, current record and policy state, record fingerprint, and crawl timing.

Website Trust Record periodicvideos.com

Current Trust Summary

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

Record Status

Public record
First recorded by GoGuides: 2026-09-19 07:30:16

Public Profile Display

Normal public profile display permitted by current GoGuides policy.

Current Grade

A / AI Rank 76

Crawl Freshness

Aging
Last crawled 10 days ago

Domain Provenance Record

1 measurement across 0 days

Stability Window

Pending

Trust Record

Public Trust Record for periodicvideos.com.

View Full Trust Profile →

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GOGUIDES

Public Trust Record

Rank: A • View Details

Canonical URL

https://periodicvideos.com/

Matched URL

https://periodicvideos.com/

AI Rank

Grade

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

http://periodicvideos.com/

Observed Public IP Address

185.151.30.205

Observed Nameservers

ultra101.uk2.net, ultra102.uk2.net

Robots Access

Allowed
robots_unreachable_allowed

Page Robots Directive

Not observed

TLS Certificate

CN=RapidSSL TLS RSA CA G1,OU=www.digicert.com,O=DigiCert Inc,C=US
Valid 2026-06-20 00:00:00 to 2027-01-04 23:59:59

Observed Provenance States

3 stored states across 3 observations

Observed State Changes

Content: 0
Robots: 0
DNS: 0
TLS certificate: 0
Final URL: 1

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://periodicvideos.com/

Final URL
http://periodicvideos.com/

HTTP Status
200

Redirect Count
0

Content Type
text/html

Response Bytes
33,483

Canonical URL
Not observed

Observed Page Title
The Periodic Table of Videos - University of Nottingham

Robots Access
Allowed

Robots Reason
robots_unreachable_allowed

Meta Robots
Not observed

X-Robots-Tag
Not observed

Observed Public IP Address(es)
185.151.30.205

Observed Nameservers
ultra101.uk2.net, ultra102.uk2.net

TLS Certificate Issuer
CN=RapidSSL TLS RSA CA G1,OU=www.digicert.com,O=DigiCert Inc,C=US

TLS Valid From
2026-06-20 00:00:00

TLS Valid Until
2027-01-04 23:59:59

First Observed
2026-09-12 04:19:57

Last Observed
2026-09-12 04:19:57

Identical-State Observations
1

▶ Show Cryptographic Evidence & SHA-256 Hashes ▼ Cryptographic Evidence & SHA-256 Hashes

                Title SHA-256

                7c19707d0bb68538db1087437c2bb066430d86e798da0cf24f655a9557a64b11            

                Content SHA-256

                f1c175f05eacb4e6d740fed1a6266a081026023b3ac7854276b4f71c3f320831            

                HTTP Body SHA-256

                d63353cf2e5cc320cb4c756c9df16e1ccc4ea2d5d3b9a0890b89b269ce20d54d            

                robots.txt SHA-256

                Not observed            

                DNS State SHA-256

                2b948e94d1626875828930d48f0912b9af4169faeb3a485b861a9f4f8883997b            

                TLS Certificate SHA-256

                6c2f3ca42d7a89efbeb422da02689612ca17a4363c261a9bb7667199be86376f            

                Complete Provenance State SHA-256

                5f6869d557ebc47e5c43dd3bbb37c5639b399b0fba2fbe876340795a0d6a96ac

View Machine-Readable Provenance JSON

First Seen by GoGuides

2026-09-19 07:30:16

Last Crawled by GoGuides

2026-09-12 04:19:56 (10 days ago)

Last Record Refresh

2026-09-19 07:30:16 (3 days ago)

Record Refresh Freshness

Recent
Last refreshed 3 days ago

Stored Measurement Age

0 days

Trust Record Age

3 days ago

Stored Trust Measurements

Measurement Span

1 snapshot

Stability Window

Pending

Current Trust State Since

2026-09-19 07:30:16 (3 days ago)

Days Since Last Change

3 days

Rank/Algo State Changes

Trust Record Fingerprint (SHA-256)

66b01c4d9743343fbef01530ad36177a26cd7b9d0410c539868480aafb231532

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 state, including rank, crawl timing, algorithm version, and record fingerprint.

2026-09-19 07:30:16 | rank 76 | crawled 2026-09-12 04:19:56 | v1
66b01c4d9743343fbef01530ad36177a26cd7b9d0410c539868480aafb231532

Record-State Favicon Previews

These favicons are generated deterministically from GoGuides measurement inputs for the site, including AI Rank and crawl timing. They provide a visual representation of the corresponding GoGuides record state. The same supported inputs produce the same favicon output. If a favicon appears different elsewhere, verify the record here to compare it with the current GoGuides state.

16px

open

32px

open

48px

open

64px

open

96px

open

Related GoGuides Web Intelligence & Trust Utilities

These GoGuides utilities work together to explain crawler activity, inspect AI visibility, compare robots.txt with GoGuides evidence surfaces, check Verified Text records, and explore machine-readable web intelligence and provenance.

Why GoGuides Crawled My Site Are AI Bots Visiting My Site? Not Showing in ChatGPT? Is My Site Used by AI? Robots.txt vs Trust Layer Verified Text Search Submit to the Live Index — $69.95