PassiveRanker vs Serpkin

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

PassiveRanker compared with Serpkin
Detail	PassiveRanker	Serpkin
What it does	AI publishing autopilot for modern businesses	Rank higher on Google without learning SEO. Your coding agent does the work.
Stage	Not given	Not given
Founded	Not given	Not given
Based in	Not given	CR
Pricing model	Freemium	Freemium
Pricing	Starter: $29/month (3-day free trial, 100 articles/month, 1 business, 20 CMS integrations). Lifetime: $499 one-time (same limits as Starter, no renewal). Agency: $59/month (400 articles/month, 10 businesses, 50 CMS integrations/business).	Free scan available. Builder plan: $29/month or $290/year (≈$24/month with 2 months free). Pro plan: $79/month or $790/year (≈$66/month with 2 months free). Builder includes 3 sites, 30 missions/month, 100 keywords tracked daily, 500 research credits/month. Pro includes 15 sites, 150 missions/month,
Key features	Keyword discovery and buyer-intent ranking AI-powered article writing with on-brand images SEO scoring before publication Automatic cross-linking for topical authority Multi-CMS publishing integrations Google Analytics 4 integration Optimization for ChatGPT and AI search tools Multiple business workspace management Scheduled daily publishing Up to 100 articles per month on Starter plan	Mission ranking by estimated traffic impact Daily rank tracking and competitor monitoring Site crawl and indexing audit with Core Web Vitals Preview checks before deployment AI content review of pages Measured results at 14 and 28 days Weekly pull requests from GitHub Actions Backlink snapshot and research credits system IndexNow submissions to Bing Support for Claude Code, Codex, Cursor and MCP agents
What makes it different	Produces 100 articles per month versus approximately 30 from competitors Flat $29/month replaces agencies charging $300+ per article Focuses on buyer-intent keywords, not just search volume Hard SEO quality gate prevents publishing low-quality articles Requires no SEO knowledge and runs completely on autopilot	Only ranks fixes by actual traffic potential, not generic advice Verifies changes on live site and measures real impact against your baseline Never edits or deploys your site—your agent and you always control the code Hands agents file locations and step-by-step recipes, not just audit lists Works with existing coding agents—no new tool to learn
Community votes	0	0
DR (Domain Rating by Ahrefs)	Not checked yet no change since last check	1 +1 (up) since last check
Trust Flow (Majestic)	0	3
Citation Flow (Majestic)	0	16
Referring domains (Majestic)	0	3

5 details filled in for both companies.

More alternatives to PassiveRanker More alternatives to Serpkin