GoGuides Trust Record

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

Website Trust Record concrete.org

Current Trust Summary

This GoGuides Trust Record summarizes the current measured state for concrete.org.

Trust Status

Public trust record
First recorded by GoGuides: 2026-07-14 23:53:21

Public Eligibility

Eligible for public trust display.

Current Grade

A+ / AI Rank 85

Crawl Freshness

Fresh
Last crawled 3 hours ago

Domain Provenance Record

4 measurements across 31 days

Stability Window

31 days

Trust Record

Public Trust Record for concrete.org.

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GOGUIDES

Public Trust Record

Rank: A+ • View Details

Canonical URL

https://concrete.org/

Matched URL

https://concrete.org/

AI Rank

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.concrete.org/

Observed Public IP Address

52.117.20.41

Observed Nameservers

ns10.dnsmadeeasy.com, ns11.dnsmadeeasy.com, ns12.dnsmadeeasy.com, ns13.dnsmadeeasy.com, ns14.dnsmadeeasy.com, ns15.dnsmadeeasy.com

Robots Access

Allowed
allowed

Page Robots Directive

INDEX, FOLLOW

TLS Certificate

CN=YR2,O=Let's Encrypt,C=US
Valid 2026-07-25 00:23:38 to 2026-10-23 00:23:37

Observed Provenance States

44 stored states across 44 observations

Observed State Changes

Content: 7
Robots: 0
DNS: 0
TLS certificate: 0
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://concrete.org/

Final URL
https://www.concrete.org/

HTTP Status
200

Redirect Count
1

Content Type
text/html; charset=utf-8

Response Bytes
258,814

Canonical URL
https://www.concrete.org

Observed Page Title
American Concrete Institute

Robots Access
Allowed

Robots Reason
allowed

Meta Robots
INDEX, FOLLOW

X-Robots-Tag
Not observed

Observed Public IP Address(es)
52.117.20.41

Observed Nameservers
ns10.dnsmadeeasy.com, ns11.dnsmadeeasy.com, ns12.dnsmadeeasy.com, ns13.dnsmadeeasy.com, ns14.dnsmadeeasy.com, ns15.dnsmadeeasy.com

TLS Certificate Issuer
CN=YR2,O=Let's Encrypt,C=US

TLS Valid From
2026-07-25 00:23:38

TLS Valid Until
2026-10-23 00:23:37

First Observed
2026-08-15 09:38:08

Last Observed
2026-08-15 09:38:08

Identical-State Observations
1

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

                Title SHA-256

                9a637ea242aa2de107cc488668bdd3d50d0bf8f7c462a4666107ef412689c29f            

                Content SHA-256

                d1fad7cf69518d290d019e5a59479b1bbc553df040b60b2b5c87f4df6ff2db02            

                HTTP Body SHA-256

                99fff4a9e738ff73bac9216796c75d134a9a5318e901f2efff06b9d496034b24            

                robots.txt SHA-256

                f3773dccdec0ebda37dc7aa0ec3bd246c9d19fa2d81ac968708200b88ca5c275            

                DNS State SHA-256

                0235a3c708d163f5a2af7451e7eb82ec00ffda61a1401f58345902d7f641a314            

                TLS Certificate SHA-256

                37974ff28e554f74b7781cdb93ab485148ac0745ae89e2167b2b813a61dc9140            

                Complete Provenance State SHA-256

                bdb3f40a88159b70774eafe29239857fa01537b9d1271859c868900da5967e68

View Machine-Readable Provenance JSON

First Seen by GoGuides

2026-07-14 23:53:21

Last Crawled by GoGuides

2026-08-15 09:38:08 (3 hours ago)

Last Record Refresh

2026-08-15 13:11:24 (just now)

Record Refresh Freshness

Fresh
Last refreshed just now

Stored Measurement Age

31 days

Trust Record Age

31 days ago

Stored Trust Measurements

Measurement Span

31 days across 4 stored measurements

Stability Window

31 days

Current Trust State Since

2026-07-14 23:53:21 (31 days ago)

Days Since Last Change

31 days

Rank/Algo State Changes

Trust Record Fingerprint (SHA-256)

7f6aace5a161db55660d4f2a198cdd6c6467e2f969bee4fb31dbd2b5b0b67630

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.

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.

16px

open

32px

open

48px

open

64px

open

96px

open

Related GoGuides AI Visibility & Trust Utilities

These GoGuides utilities work together: explain crawler activity, inspect AI visibility gaps, compare robots.txt with trust-layer signals, check verified text records, and activate a public Trust Signal when a domain is ready.

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 Activate Trust Signal — $69.95 Introductory Offer