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hrefStack

Autonomous SEO and GEO content agent that researches, writes, publishes to your CMS and self-corrects

freemiumThree tiers with monthly and yearly toggles, yearly saving 17%, plus contact-priced enterprise. Free is $0 and includes 10,000 words per month, unlimited AI images, one article at a time up to 2,000 words, basic AI models, basic SEO optimisation, no research features and email support. Starter is $45/month or $450/year ($37.50/month billed annually) for 100,000 words per month, up to 5 articles at once, up to 3,000 words per article, advanced AI models, enhanced SEO optimisation, research features and priority email support. Pro is $69/month or $699/year ($58.25/month billed annually) for unlimited words, up to 10 articles at once, up to 5,000 words per article, all premium AI models, premium SEO optimisation, full research access, custom prompts, API access, team collaboration and priority support. Enterprise pricing is quoted on request.View full pricing →

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https://hrefstack.com

About hrefStack

hrefStack is an autonomous content agent that runs the whole SEO publishing loop rather than assisting with one step of it. Connected to a CMS, a domain and Google Search Console, it scans existing content and technical setup, analyses competitors, finds keyword gaps, plans a calendar weeks ahead against seasonal trends and publishing cadence, writes publication-ready articles, and publishes them on schedule to WordPress, Webflow or a custom endpoint via API. The distinguishing mechanics are on the quality side: every piece is scored across six dimensions — relevance, depth, originality, readability, SEO compliance and citation-worthiness — before it goes live, and the agent self-audits for grammar, factual accuracy, SEO compliance and brand voice, fixing what it finds before anything reaches a review queue. After publication it keeps monitoring, tracking rankings and AI citations across Google, AI Overviews, ChatGPT and Perplexity, and automatically refreshing articles that decay. Generative-engine optimisation is treated as a first-class target rather than a bolt-on, with entity-rich structured content aimed at being cited by AI answer engines. Editorial control remains available at every stage — output can be reviewed, retoned or approved as-is — but the default mode is unattended. Plans are metered in words per month rather than article counts, with per-article word ceilings rising by tier.

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Key Features

Six-dimension quality scoring before anything publishes
Self-audit for grammar, facts, SEO compliance and brand voice
Publishes directly to WordPress, Webflow or a custom CMS
Tracks rankings and AI citations, then refreshes decaying articles
Word-metered plans rather than fixed article counts

Tags

seogeocontent-automationwordpressai-agent
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