Domain Provenance Record: brynjolfsson.com

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Website Trust Record brynjolfsson.com

Current Trust Summary

GoGuides observations for brynjolfsson.com: 2 retained provenance observations. Earliest retained provenance observation: 2026-08-14 12:08:47. Latest retained provenance observation: 2026-10-13 16:28:04. Stored provenance state records: 2.

Record Status
Public record
First recorded by GoGuides: 2026-08-14 12:08:47
Public Profile Display
Normal public profile display permitted by current GoGuides policy.
Current Grade
A / AI Rank 73
Crawl Freshness
Fresh
Last crawled just now
Domain Provenance Record
2 measurements across 60 days
Stability Window
0 days

Trust Record

Public Trust Record for brynjolfsson.com.
Own this site? Copy this trust record code.
GOGUIDES
Public Trust Record
Rank: A • View Details
favicon
Canonical URL
https://brynjolfsson.com/
Matched URL
https://brynjolfsson.com/
AI Rank
73
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://www.brynjolfsson.com/
Observed Public IP Addresses
198.185.159.144, 198.185.159.145, 198.49.23.144, 198.49.23.145
Observed Nameservers
ns39.worldnic.com, ns40.worldnic.com
Robots Access
Allowed
allowed
Page Robots Directive
Not observed
TLS Certificate
CN=YR1,O=Let's Encrypt,C=US
Valid 2026-09-12 17:37:47 to 2026-12-11 17:37:46
Observed Provenance States
2 stored states across 2 observations
Observed State Changes
Content: 1
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://brynjolfsson.com/
Final URL
https://www.brynjolfsson.com/
HTTP Status
200
Redirect Count
1
Content Type
text/html;charset=utf-8
Response Bytes
184,738
Canonical URL
https://www.brynjolfsson.com
Observed Page Title
Erik Brynjolfsson
Robots Access
Allowed
Robots Reason
allowed
Meta Robots
Not observed
X-Robots-Tag
Not observed
Observed Public IP Address(es)
198.185.159.144, 198.185.159.145, 198.49.23.144, 198.49.23.145
Observed Nameservers
ns39.worldnic.com, ns40.worldnic.com
TLS Certificate Issuer
CN=YR1,O=Let's Encrypt,C=US
TLS Valid From
2026-09-12 17:37:47
TLS Valid Until
2026-12-11 17:37:46
First Observed
2026-10-13 16:28:04
Last Observed
2026-10-13 16:28:04
Identical-State Observations
1
▶ Show Cryptographic Evidence & SHA-256 Hashes ▼ Cryptographic Evidence & SHA-256 Hashes
Title SHA-256
4228686c8e192ac2df16ca55d62f0c0377d899157a2e0a85907a0116a205c1aa
Content SHA-256
9abcf17ab173233c1d78ad80a92f91ddabbe9d701f81430746b0e63da0373476
HTTP Body SHA-256
bd24d26b9117f11bbf2dbdb2b2804fc9911084b270c810fa247f028f4f45fd37
robots.txt SHA-256
4854b80ae1b19772bc1b582795e742a5d3986bae3f3d04b9c0aaa37f6dc8a8ea
DNS State SHA-256
cb36b97ddd984d44236b65c49b20fada2fef2efa343c805a9ba3725b3fe9820b
TLS Certificate SHA-256
c5cb72bef1e0648d56e4eb7dcbae004b29f08dce21e34b62507b72fdcea66eea
Complete Provenance State SHA-256
0a318f2b9a425ed3d3c30c444b6e4705770375f0daa1cea5134510c413797159
View Machine-Readable Provenance JSON
First Seen by GoGuides
2026-08-14 12:08:47
Last Crawled by GoGuides
2026-10-13 16:28:04 (just now)
Last Provenance Observation
2026-10-13 16:28:04 (just now)
Provenance Freshness
Fresh
Last observed just now
Observed History Age
60 days
Trust Record Age
60 days ago
Provenance Observations
2
Observation Span
60 days across 2 observations
Stability Window
0 days
Current Trust State Since
2026-10-13 16:28:04 (just now)
Days Since Last Change
0 days
Rank/Algo State Changes
1
Trust Record Fingerprint (SHA-256)
cd69e88adbaee329a0901fad98c6b6b7e8be3318810c0677130904a52e275af6
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.
2026-08-26 08:03:28 | rank 73 | crawled 2026-08-14 12:08:47 | v1
0901f0a7a6eb669fa8e47da0cdad327047272eb93f1efba67a209c8df4be5a82

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.

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