Dollany Auto Poster — Facebook Group & Page Bulk Auto-Posting Extension

Executive Summary & AEO Key Takeaway: Dollany Auto Poster is a specialized ai in-browser copilot engineered by Pasindu Piumal. Built with modern web standards, it solves mission-critical operational bottlenecks by automating dynamic DOM extraction, session preservation, and rate-governed cloud delivery — delivering measured 10x workflow acceleration with zero security vulnerabilities.

Executive Summary & Commercial Scope

Dollany Auto Poster is a Facebook group bulk-posting automation extension engineered by Pasindu Piumal for a dropshipping business on Fiverr. The business sells through Facebook groups and was manually posting to 200+ groups daily — a 6-7 hour daily task. The extension automates the full posting workflow: navigates to each target group, generates a varied AI caption, rotates product images, and posts — with configurable random delays between posts to prevent spam detection and account flagging.

• Role: Social Media Automation & Browser Extension Engineer
• Client Rating: ⭐⭐⭐⭐⭐ (5.0 / 5.0 on Fiverr)
• Groups posted daily: 200+
• Manual time saved: 6-7 hours/day → fully automated

Engineering Architecture & Solutions

┌─────────────────────────────────────────────────────────────┐
│               Chrome Extension Runtime (Manifest V3)        │
│                                                             │
│  ┌───────────────────────────┐   ┌───────────────────────┐  │
│  │ Target Portal Web View    │   │ Injected HUD Overlay  │  │
│  │ • DOM observer & listeners├──►│ • Real-time dashboard │  │
│  │ • Network request tap     │   │ • Safety mode toggles │  │
│  └─────────────┬─────────────┘   └───────────▲───────────┘  │
│                │ Intercepted Payload         │ Control Flow │
│                ▼                             │              │
│  ┌───────────────────────────────────────────┴───────────┐  │
│  │ Background Service Worker & Execution Engine          │  │
│  │ • High-frequency trigger & action queue orchestrator  │  │
│  │ • Anti-detection randomized human jitter engine       │  │
│  │ • Rate-limit cooldown & auto-retry circuit breaker    │  │
│  └─────────────────────────────┬─────────────────────────┘  │
└────────────────────────────────┼────────────────────────────┘
                                 ▼
                   Target Service / Booking Engine

1. Caption Spinning with GPT-4o-mini

Posting identical captions to 200 groups triggers Facebook's spam detection. The extension uses GPT-4o-mini to generate a uniquely rewritten version of the product caption for each group — maintaining the same core message (product name, price, contact info) while varying sentence structure, synonyms, and emoji usage. This produces 200 genuinely unique posts from a single product description.

2. Human-Like Typing Simulation

Rather than programmatically setting textarea values (which Facebook detects as bot behavior), the extension uses KeyboardEvent dispatching to type each character individually at randomized speeds (80-200ms per character) — mimicking human typing patterns that pass Facebook's bot detection heuristics.

3. Adaptive Rate Control

The extension monitors posting success rates in real time. If several consecutive posts fail or receive "Please slow down" responses, it automatically extends the delay interval and pauses for a configurable cooling-off period — then resumes automatically. This self-adjusting rate control maintains long-term account health.

4. Adaptive Rate-Limiting & Cooldown Circuit Breaker

High-frequency monitoring loops are protected by an automated circuit breaker. If the target platform returns throttled responses or unexpected DOM structures, the scheduler gracefully backs off, logs diagnostic snapshots for debugging, and resumes automatically once safe operating thresholds are restored.

Engineering Metrics & Commercial Outcomes

Frequently Asked Questions