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 zvab.com

Current Trust Summary

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

Trust Status

Public trust record
First recorded by GoGuides: 2026-01-08 23:52:55

Public Eligibility

Eligible for public trust display.

Current Grade

A / AI Rank 75

Crawl Freshness

Fresh
Last crawled 19 hours ago

Domain Provenance Record

3 measurements across 162 days

Stability Window

40 days

Trust Record

Public Trust Record for zvab.com.

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GOGUIDES

Public Trust Record

Rank: A • View Details

Canonical URL

https://zvab.com/

Matched URL

https://zvab.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://www.zvab.com/

Observed Public IP Addresses

3.170.131.22, 3.170.131.34, 3.170.131.54, 3.170.131.7

Observed Nameservers

ns-1074.awsdns-06.org, ns-1950.awsdns-51.co.uk, ns-358.awsdns-44.com, ns-563.awsdns-06.net

Robots Access

Allowed
allowed

Page Robots Directive

Not observed

TLS Certificate

CN=Amazon RSA 2048 M04,O=Amazon,C=US
Valid 2026-07-21 00:00:00 to 2027-02-03 23:59:59

Observed Provenance States

5 stored states across 7 observations

Observed State Changes

Content: 0
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://zvab.com/

Final URL
https://www.zvab.com/

HTTP Status
200

Redirect Count
1

Content Type
text/html;charset=UTF-8

Response Bytes
272,429

Canonical URL
https://www.zvab.com/

Observed Page Title
ZVAB - Zentrales Verzeichnis Antiquarischer Bücher | Antiquarische und vergriffene Bücher online bestellen

Robots Access
Allowed

Robots Reason
allowed

Meta Robots
Not observed

X-Robots-Tag
Not observed

Observed Public IP Address(es)
3.170.131.22, 3.170.131.34, 3.170.131.54, 3.170.131.7

Observed Nameservers
ns-1074.awsdns-06.org, ns-1950.awsdns-51.co.uk, ns-358.awsdns-44.com, ns-563.awsdns-06.net

TLS Certificate Issuer
CN=Amazon RSA 2048 M04,O=Amazon,C=US

TLS Valid From
2026-07-21 00:00:00

TLS Valid Until
2027-02-03 23:59:59

First Observed
2026-08-13 17:07:06

Last Observed
2026-08-14 17:08:06

Identical-State Observations
2

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

                Title SHA-256

                1f0576183fa918efab0931a24339f7927c2a6481caae5d6e34b5964f87c76fbb            

                Content SHA-256

                112550e804ba236c64a662bee1af8cb1c960786d72302f9a7a7f502a90aec218            

                HTTP Body SHA-256

                51d37056f8bd4f8242af208c07f3f6439549c3e0ae0ada8e3b81879593f57fd0            

                robots.txt SHA-256

                62515a026f524f62f478abf9162529a545ef7d75b68aa09a5ecdff7d20a452d4            

                DNS State SHA-256

                4c837a5e765e44604301442aeec270d24ec55f7d45e99706c2cc9b4060f84242            

                TLS Certificate SHA-256

                2e0d59985f4e1047553155d54414f73dc98d6a479e736597aaf8c7d30eac006f            

                Complete Provenance State SHA-256

                0c9b904972598af4bae509a95da6d8ca8c2dec4008ca423b5eee6c4e55695884

View Machine-Readable Provenance JSON

First Seen by GoGuides

2026-01-08 23:52:55

Last Crawled by GoGuides

2026-08-14 17:08:05 (19 hours ago)

Last Record Refresh

2026-08-15 12:12:35 (just now)

Record Refresh Freshness

Fresh
Last refreshed just now

Stored Measurement Age

162 days

Trust Record Age

218 days ago

Stored Trust Measurements

Measurement Span

162 days across 3 stored measurements

Stability Window

40 days

Current Trust State Since

2026-07-05 20:06:50 (40 days ago)

Days Since Last Change

40 days

Rank/Algo State Changes

Trust Record Fingerprint (SHA-256)

8ce735989e50f9a51b758222aeb2789ad01794cd99152c238ea6b5dc1f52041c

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