SEO Signal vs OpenSEO

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

SEO Signal compared with OpenSEO
Detail	SEO Signal	OpenSEO
What it does	GSC-powered SEO operating system for detecting changes, investigating evidence, and prioritizing actions	Open-source SEO tools you can run yourself, read every line of, and hand to your AI agent
Stage	Not given	Not given
Founded	Not given	Not given
Based in	Not given	Not given
Pricing model	Freemium	Open source
Pricing	Solo: $29/month (1 website), Growth: $49/month (3 websites), Scale: $99/month (10 websites). Monthly or yearly billing available with yearly saving 2 months. 14-day free trial, no card required.	Hosted app: free, all features unlimited. Self-hosted: free, open source under MIT licence. Search data from YepAPI: paid per lookup. Examples: keyword overview $0.47–$0.57, keyword ideas $0.07–$0.25, SERP checker $0.25–$0.26, rank check $0.02–$0.10, backlink checker $0.30–$0.34. New YepAPI accounts
Key features	Daily SEO briefs showing latest complete GSC data, performance changes, and priorities Evidence-backed Signals for growth, loss, CTR, ranking, content, and indexing Page and Query investigation with evidence, relationships, and Signals SEO Signal AI Agent for ten bounded GSC workflows Content Groups to monitor page sections and topics Rank Tracking for selected search queries and page positions Cross-site Brief showing important changes across connected websites Read-only Google Search Console access without editing capability Five report views with 7d, 30d, calendar months, and 90d comparisons	Keyword research with difficulty, volume and top 10 results SERP checker for any location with desktop and mobile options Rank tracking to top 20, 50 or 100 by country, city or coordinates Backlink checker with monthly link history AI visibility tracking across 120+ AI models with web search Local rank checker with geo-grid maps MCP server with 76 tools for AI agents Google Search Console integration Self-hosting with Docker on your own server
What makes it different	Built on Google Search Console data you already own with read-only access and no site editing capability Evidence-backed analysis keeps observed facts separate from possible causes Connected workflow with five modules moving from data to evidence to decisions and reports AI Agent with ten bounded GSC workflows and visible limitations	MIT licensed open-source code you can read and modify completely Self-hosted option keeps all your data on your own server Pay per lookup with spending limits controlled by you AI agents have spending ceilings to prevent overspending
Community votes	0	1
DR (Domain Rating by Ahrefs)	21 +1 (up) since last check	5 +1 (up) since last check
Trust Flow (Majestic)	7	0
Citation Flow (Majestic)	25	13
Referring domains (Majestic)	67	1

5 details filled in for both companies.

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