Vianerds Page Signal Audit
Verification PAYMENT-READYpayment-ready until 2026-08-24
Deterministic pay-per-call audit for supplied static HTML. Returns a 0-100 launch-risk baseline with exact SEO, social sharing, accessibility and markup evidence plus prioritized fixes. The endpoint does not fetch or mutate websites and makes no ranking claim.
Pay from $5.00 in USDC on Base, settled onchain via the x402 protocol, no signup, no API key needed.
listed 2026-08-17 · no on-chain settlement recorded yet
ASSESSMENT
updated 2h agoEvidence-backed signals, not a single score. Click any chip for the proof. Measured values stay read-only; unknown is honest.
reliability 100%
- uptime 24h
- -
- uptime 7d
- -
- uptime 30d
- -
- uptime 90d
- -
- response p95
- 459ms
- avg response
- 459ms
- total checks
- 1
Measured on the unpaid 402 handshake, not the paid call. A service can 402 correctly and still fail after payment.
compliance A (14/14)
14 of 14 x402 conformance checks pass. Full checklist below.
price $5.00 (p99 in Verification)
- price (min)
- $5.00
- category percentile (min)
- p99 in Verification
- endpoints / prices
- 1 / 1
- model
- flat
- stability
- 100%
risk clean
No deterministic risk flag. Risk fires only on an exact blocklist match, or a reserved-brand name with a mismatched verified payTo. Never from low uptime, a high price, or a model guess.
- domain age
- 168d
- registrar
- InterNetX GmbH
- hosting
- custom
- domain created
- 2026-03-02
Identity facts, not a risk score.
traction $0.00 30d · 0 buyers
- volume 30d
- $0.00
- buyers 30d
- 0
- settlements 30d
- 0
- measured since
- --- (start of our harvest window)
- last settlement
- ---
- top buyer share
- -
- trend 7d vs 30d
- -
- networks
- eip155:8453
- volume all-time
- $0
- settlements all-time
- 0
- median settlement 30d
- -
- max settlement 30d
- -
- settled via
- -
Conservative undercount: only USDC settlements via facilitators we measure are counted. A measured floor, not an estimate.
Top buyer share is a concentration signal, not part of the ranking score.
WHAT IT DOES
ai-derivedNo AI synthesis has been produced for this service yet.
ENDPOINTS
| METHOD | PATH | DESCRIPTION | PRICE | NETWORK | ASSET | 402 CHANNEL |
|---|---|---|---|---|---|---|
| POST | /x402/v1/page-signal-audit | $5.00 | Base | USDC | header |
REQUEST / RESPONSE EXAMPLE
An unpaid request to POST /x402/v1/page-signal-audit returns HTTP 402 with the payment terms. Settle onchain via your facilitator, then retry with the X-Payment header.
curl -i -X POST 'https://vianerds.com/x402/v1/page-signal-audit'
// 402 response (captured by monitor) · 1 payload · click to expand
[
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x0785de9aE8F6394B56CF2D444D08A232CbD77ADf",
"amount": "5000000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://vianerds.com/x402/v1/page-signal-audit",
"mimeType": "application/json",
"description": "Evidence-only SEO, sharing, accessibility, and HTML launch-risk audit. Submit static HTML and receive prioritized machine-readable fixes without ranking claims."
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"url": "https://example.com/product",
"html": "<!doctype html><html lang=\"en\"><head><title>Example product</title></head><body><h1>Example product</h1></body></html>"
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"score": 82,
"target": "https://example.com/product",
"verdict": "repair_priority_signals",
"schemaVersion": "vianerds.page-signal-audit.v1",
"priorityActions": [
{
"fix": "Add a page-specific summary.",
"code": "missing_meta_description",
"severity": "medium"
}
]
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"type": "object",
"required": [
"url",
"html"
],
"properties": {
"url": {
"type": "string",
"pattern": "^https://",
"description": "Absolute HTTPS page URL used as the audit label."
},
"html": {
"type": "string",
"maxLength": 250000,
"minLength": 20,
"description": "Static HTML to inspect. The service never fetches the URL."
}
}
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"POST"
],
"type": "string"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object"
}
}
}
}
}
}
},
"x402Version": 2
}
] OVER TIME
All charts use the 90d selector; each series spans only the dates it has data for. Every series is also served as JSON at /api/v1/services/vianerds-page-signal-audit/price, /scores, /volume and /buyers. On-chain volume and distinct buyers are measured over the service's settlement address and are a conservative undercount (only settlements that reach a measured facilitator are counted). The on-chain series roll up hourly, so the latest day can be up to about an hour behind; distinct buyers are counted per payout address, so a service that settles to more than one address is an upper bound.
checklist grew 11->14 on 2026-07-28; a step here is a metric change, not a regression
COMPLIANCE
14/14 checks pass · grade Alast 402 captured 2026-08-17 · last up 2026-08-17
- 402 payload captured
- accepts[] array present
- payTo address recoverable
- payTo at accepts[0].payTo (conformant shape)
- payTo is a valid on-chain address
- atomic price declared
- atomic price in a sane range
- asset (token) address declared
- network resolves to CAIP-2
- payment scheme declared
- served over HTTPS
- declares the current x402 version (2)
- EIP-712 domain parameters present on every EVM entry
- x402 v2 envelope delivered in the payment-required header
SITE PILLARS
- homepage reachable
- openapi doc
- pricing page
- llms.txt
- robots.txt
- terms page
recent checks (8) live · click to expand
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