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 substack.com

Current Trust Summary

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

Record Status

Public record
First recorded by GoGuides: 2026-01-09 00:00:02

Public Profile Display

Normal public profile display permitted by current GoGuides policy.

Current Grade

A / AI Rank 70

Crawl Freshness

Old
Last crawled 39 days ago

Domain Provenance Record

5 measurements across 4 days

Stability Window

39 days

Trust Record

Public Trust Record for substack.com.

View Full Trust Profile →

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GOGUIDES

Public Trust Record

Rank: A • View Details

Canonical URL

https://substack.com/

Matched URL

https://www.substack.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

https://substack.com/

Observed Public IP Addresses

104.18.37.200, 172.64.150.56, 2606:4700:4401::ac40:9638, 2606:4700:4404::6812:25c8

Observed Nameservers

ali.ns.cloudflare.com, lee.ns.cloudflare.com

Robots Access

Allowed
allowed

Page Robots Directive

Not observed

TLS Certificate

CN=WE1,O=Google Trust Services,C=US
Valid 2026-07-22 09:54:58 to 2026-10-20 10:54:53

Observed Provenance States

5 stored states across 5 observations

Observed State Changes

Content: 4
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://www.substack.com/

Final URL
https://substack.com/

HTTP Status
200

Redirect Count
1

Content Type
text/html; charset=utf-8

Response Bytes
220,194

Canonical URL
https://substack.com/

Observed Page Title
Substack

Robots Access
Allowed

Robots Reason
allowed

Meta Robots
Not observed

X-Robots-Tag
Not observed

Observed Public IP Address(es)
104.18.37.200, 172.64.150.56, 2606:4700:4401::ac40:9638, 2606:4700:4404::6812:25c8

Observed Nameservers
ali.ns.cloudflare.com, lee.ns.cloudflare.com

TLS Certificate Issuer
CN=WE1,O=Google Trust Services,C=US

TLS Valid From
2026-07-22 09:54:58

TLS Valid Until
2026-10-20 10:54:53

First Observed
2026-08-25 04:12:17

Last Observed
2026-08-25 04:12:17

Identical-State Observations
1

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

                Title SHA-256

                8c339ec81c3ea691df665df3e7af35c88d095951927aa75c4519ce4d9504fdab            

                Content SHA-256

                8ec8cb1b1abb54e460cc764bf99f342c7710a20d7625c157562a82703a21d53c            

                HTTP Body SHA-256

                1ffc64f16b3f86bdcb6058915b6ee05516adf82585d5cafc02d6d6e15af79031            

                robots.txt SHA-256

                e468186aecca926921a597e3b593f101d82741e04874f7f723007d47adb3b1e8            

                DNS State SHA-256

                8bb6d6bdc83cd1e463c987ddf80e80eb4ea19e655fb73bd7e86b939603072904            

                TLS Certificate SHA-256

                c11b897fcf19f954547105e1704703ecccc54022c4577b0a60286a187d1524b5            

                Complete Provenance State SHA-256

                a1bbfbce73be5c67982239fa75b69b6e9bf63380463a915804c109d711368901

View Machine-Readable Provenance JSON

First Seen by GoGuides

2026-08-20 10:41:56

Last Crawled by GoGuides

2026-08-25 04:12:17 (39 days ago)

Last Provenance Observation

2026-08-25 04:12:17 (39 days ago)

Provenance Freshness

Old
Last observed 39 days ago

Observed History Age

4 days

Trust Record Age

267 days ago

Provenance Observations

Observation Span

4 days across 5 observations

Stability Window

39 days

Current Trust State Since

2026-08-25 04:12:17 (39 days ago)

Days Since Last Change

39 days

Rank/Algo State Changes

Trust Record Fingerprint (SHA-256)

c0352311947eb13db4d2bbca8c37e3d8868791e89eacf17d4f3f2179ff7eb96a

Computed from: matched URL + rank + last crawled + algorithm version. This identifies the GoGuides trust record state; it is not domain-owner verification.

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