Signal Layer

Analyzes web content for synthetic patterns & SEO templates. 100% local — no data sent, no API, no server.

Signal Layer — Privacy-First Multilingual Web Quality Analyzer The internet is filling with template-generated content, SEO farms, and AI-expanded articles. Signal Layer gives you a fast, transparent, privacy-first tool to evaluate what you are actually reading — in 20 languages. HOW IT WORKS ──────────── Click the Signal Layer icon on any page. The extension analyzes the visible text entirely within your browser — no data leaves your device, no API is called, no server is contacted. In seconds you receive: • Human Trace Score (0–100) — A single composite number. Higher scores indicate organically structured text. Lower scores reflect dense template patterns and synthetic linguistic rhythm. • Synthetic Content Signal (Low / Medium / High) — Evaluates AI-associated transitional phrase density, sentence rhythm uniformity, and vocabulary repetition. • Template Repetition Signal (Low / Medium / High) — Detects repeated phrase clusters, affiliate and commission links, and bullet-heavy structural layouts. A plain-language explanation accompanies every result. MULTILINGUAL SUPPORT — 20 LANGUAGES ───────────────────────────────────── Signal Layer v0.5 introduces two-tier multilingual analysis: Tier A — Full Linguistic Analysis (7 languages) English · Turkish · Spanish · French · German · Portuguese · Italian Full support includes: phrase density detection, sentence rhythm analysis, lexical diversity (TTR), trigram repetition, and structural pattern analysis. Each language has its own calibrated phrase list and detection thresholds to minimize false positives. Tier B — Structural Analysis (13 languages) Russian · Arabic · Chinese · Japanese · Korean · Hindi · Dutch · Polish Vietnamese · Indonesian · Thai · Hebrew · Ukrainian Structural support includes: DOM analysis, heading density, paragraph fragmentation, affiliate link detection, and template repetition. Works reliably across writing systems where whitespace-based tokenization is less applicable. The extension automatically detects the page language and applies the correct analysis tier — no configuration needed. WHAT MAKES SIGNAL LAYER DIFFERENT ─────────────────────────────────── Most tools send your text to a remote server. Signal Layer does the opposite: ✓ Zero data collection — nothing transmitted, stored, or logged ✓ No API dependency — works offline, no subscription key required ✓ No authorship claims — scores describe linguistic patterns, not AI origin ✓ Academic-safe — scoring model distinguishes formal scholarly writing from synthetic SEO content across languages ✓ Transparent affiliate detection — separates genuine commission links from standard analytics trackers ✓ Smart caching — revisiting a site shows your previous score instantly ✓ Opt-in calibration feedback — voluntary 👍/👎 buttons help improve accuracy IMPORTANT NOTICE ──────────────── Signal Layer is a heuristic statistical tool, not an AI authorship detection system. The Human Trace Score measures linguistic repetition and structural uniformity — it is not definitive proof of AI generation and must not be used as the sole basis for academic, disciplinary, or legal decisions. PERMISSIONS USED ──────────────── • activeTab — reads the current tab only when you click "Analyze This Page" • scripting — injects the local analysis script into that tab • storage — caches analysis results locally on your device (24-hour expiry) No background processes. No other permissions requested. IDEAL FOR ───────── - Researchers and academics verifying source quality across languages - Journalists evaluating multilingual content provenance - Students assessing the reliability of sources in their native language - Anyone reading international web content and wanting a quality signal