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 www1.cs.columbia.edu

Current Trust Summary

This GoGuides Trust Record summarizes the current measured state for www1.cs.columbia.edu.

Record Status

Public record
First recorded by GoGuides: 2026-08-21 17:40:03

Public Profile Display

Normal public profile display permitted by current GoGuides policy.

Current Grade

A / AI Rank 80

Crawl Freshness

Fresh
Last crawled just now

Domain Provenance Record

8 measurements across 40 days

Stability Window

0 days

Trust Record

Public Trust Record for www1.cs.columbia.edu.

View Full Trust Profile →

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GOGUIDES

Public Trust Record

Rank: A • View Details

Canonical URL

https://www1.cs.columbia.edu/

Matched URL

https://www1.cs.columbia.edu/

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://www1.cs.columbia.edu/~agw/ibc/

Observed Public IP Address

128.59.11.206

Robots Access

Allowed
allowed

Page Robots Directive

Not observed

TLS Certificate

CN=InCommon RSA Server CA 2,O=Internet2,C=US
Valid 2025-11-19 00:00:00 to 2026-12-20 23:59:59

Observed Provenance States

8 stored states across 8 observations

Observed State Changes

Content: 1
Robots: 2
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
http://www1.cs.columbia.edu/~agw/ibc/

Final URL
https://www1.cs.columbia.edu/~agw/ibc/

HTTP Status
200

Redirect Count
0

Content Type
text/html

Response Bytes
1,981

Canonical URL
Not observed

Observed Page Title
Information-Based Complexity

Robots Access
Allowed

Robots Reason
allowed

Meta Robots
Not observed

X-Robots-Tag
Not observed

Observed Public IP Address(es)
128.59.11.206

Observed Nameservers
Not observed

TLS Certificate Issuer
CN=InCommon RSA Server CA 2,O=Internet2,C=US

TLS Valid From
2025-11-19 00:00:00

TLS Valid Until
2026-12-20 23:59:59

First Observed
2026-10-01 14:33:08

Last Observed
2026-10-01 14:33:08

Identical-State Observations
1

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

                Title SHA-256

                b452663113db782e57c2de43df818b8f4791beb66399f9328ce5c5c584cb414d            

                Content SHA-256

                84ccdb459ec60c24d321aa0f828d53b2df749e98dfb043af9f07c9cdf5ed089f            

                HTTP Body SHA-256

                8eb9c25b198206f8e45f86d9f3b95557f4a16c835eeb48b4dd31ef4acf9e0bb4            

                robots.txt SHA-256

                14375ab4bdfba79371e1dcfb44dc3ed93fa87a2c8746db00aa83a9fc178fb00a            

                DNS State SHA-256

                3a7b7d39f6bb35fadb3d7cbd24e73fa1122e1d22865062c86a243dc4e0381910            

                TLS Certificate SHA-256

                26c0c0393ad00368919d928f8eee13944f8a6a6678d7275051942cd6b1c0b716            

                Complete Provenance State SHA-256

                425660029e5f708bcbcac1922a64a99126542cc3e3c86dbe2b48f87b8af0e9a8

View Machine-Readable Provenance JSON

First Seen by GoGuides

2026-08-21 17:40:03

Last Crawled by GoGuides

2026-10-01 14:33:07 (just now)

Last Provenance Observation

2026-10-01 14:33:08 (just now)

Provenance Freshness

Fresh
Last observed just now

Observed History Age

40 days

Trust Record Age

40 days ago

Provenance Observations

Observation Span

40 days across 8 observations

Stability Window

0 days

Current Trust State Since

2026-10-01 14:33:08 (just now)

Days Since Last Change

0 days

Rank/Algo State Changes

Trust Record Fingerprint (SHA-256)

e25db827853cfbb2a7a5fb11284b35e1e7ed77dfaaac73935beb353434771503

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.

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