PerplexedThinkerCloudFlare
Open source Semrush alternative for SEO that runs on the Cloudflare free plan
for $100, I do get basic SEMRush that includes backlinks. I find DataForSEO too pricey for most real-world problems.
OpenSEO
Open source SEO research with MCP access and metered cloud use
The overview
What is OpenSEO?
OpenSEO is an open-source SEO research platform for keyword discovery, competitor analysis, backlink checks, rank tracking, and site audits. It connects these workflows to AI clients through MCP and can also be self-hosted. Its managed service charges for usage through a monthly plan, while the self-hosted version can be run for free.
Around the internet
What people are saying
Public experiences, questions, and discussions.
Inside the toolkit
Key features
Keyword research and rank tracking
Find keyword ideas and live search results, save keywords, and monitor ranking positions over time.
Domain, backlink, and site audits
Review competitor visibility, referring domains and link quality, and crawl pages for technical issues.
AI search visibility analysis
Research prompts and track AI mentions/citations, with a prompt explorer to compare model answers.
SEO tools through AI agents
Connect Claude, Codex, and other clients through MCP; search Google Search Console data from agents.
Saved project context and reports
Keep business context between skill runs and save research output as readable reports.
Where it fits
Use cases
- Research and group keyword opportunitiesAsk an agent to discover and cluster keywords, review their metrics, and save them to a workspace.
- Monitor a site’s organic search visibilityTrack keyword positions, competitor rankings, backlinks, and technical SEO issues.
- Track a brand in AI answersCompare prompt responses across supported models and monitor mentions and citations.
Keep exploring
