EVIDENCE-GROUNDED INTELLIGENCE

Find the problem.
Understand the cause.

We do not treat AI as autonomous magic. ScanFix pairs deterministic browser evidence with cascading language models to help engineers understand why websites fail and how to fix them.

THE 5-STAGE REASONING PIPELINE

Evidence first. Reasoning second.

ScanFix strictly grounds AI reasoning in concrete DOM selectors and HTTP response metrics to prevent hallucinations.

01FINDING

Deterministic Detection

The scanner identifies a concrete defect through rule-based evaluation (e.g., LCP degradation, missing alt attribute, CSP header absence).

Issue: LCP 4.8s on 4G network emulation
02EVIDENCE

Telemetry Capture

ScanFix extracts the exact DOM selector, HTML snippet, network waterfall timings, and request headers surrounding the failure.

Selector: header.site-header > div.hero-banner > img Resource Size: 3.4 MB uncompressed JPEG
03ROOT CAUSE

AI Engineering Analysis

The cascading AI model synthesizes the evidence against modern frontend frameworks, distinguishing primary causes from downstream symptoms.

Root Cause: Unoptimized image lacking explicit width/height and fetchPriority="high" attribute in Next.js App Router.
04RECOMMENDATION

Actionable Code Diff

Produces concrete, framework-specific code diffs and configuration updates that developers can review, test, and adopt.

+ <Image src="/hero.webp" priority fetchPriority="high" alt="Hero" />
05VERIFICATION

Mathematical Re-Audit

Re-evaluates the modified endpoint to confirm the regression is resolved and preserve the established quality baseline.

Targeted Re-Audit: LCP reduced from 4.8s to 1.6s (PASS)
AI SAFETY & GUARDRAILS

Engineered with security by default.

Prompt Injection Neutralization

Untrusted website content and scraped HTML are enclosed within strict XML boundaries to prevent malicious injection payloads.

Automated Credential Scrubbing

API keys, bearer tokens, passwords, and private hashes detected in request headers are scrubbed before payload transmission.

Deterministic Cascading Fallback

Multi-provider fallback pipeline across OpenAI, Groq, and Gemini ensures high availability during provider outages.

Test AI investigation with 2 free audits.

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