HONEST ALTERNATIVE · SEO + AI VISIBILITY
Frase is an AI content research and optimisation tool: it analyses top-ranking SERP pages for a target keyword, generates a research brief showing what topics and questions to cover, and provides an AI writing assistant to help produce SEO-targeted content from that brief. DeepSEOAnalysis is the technical counterpart: a free, no-signup audit covering 80+ checks, real CrUX Core Web Vitals field data, structured data validation, and a GEO score for AI-search visibility.
At a glance
The useful answer is not “which tool is best?” It is which tool fits the job you need done this week.
| Criterion | Competitor | DeepSEOAnalysis |
|---|---|---|
| Free access | Frase offers a limited free trial (typically one document) and paid plans starting at around $15/mo for the Solo plan with a small number of monthly documents. Higher tiers with more documents and team features are available at $45/mo and above. An add-on for the AI Writer (GPT-4-based content generation) is priced separately at around $35/mo. | Complete technical site audit is free with no signup, no email gate, and no trial expiry. All check results, severities, and fixes are visible on every on-demand crawl. |
| Core function | Frase is an AI content research and optimisation tool: it analyses the top-ranking pages for a target keyword, generates a research document summarising what those pages cover (topics, questions, statistics, sources), and provides a content editor with a content score showing how well the draft covers the relevant topics. It also has an AI writing assistant for generating content based on the research brief. The full workflow is: keyword → SERP research → brief → AI-assisted writing → optimised content. | DeepSEOAnalysis is a technical SEO and AI-visibility audit tool: crawl your live site, run 80+ checks covering technical health, on-page SEO, performance, structured data, links, and AI visibility, and receive a prioritised fix list. Frase optimises content before it's published; DeepSEOAnalysis audits the technical health of what's already live. |
| AI visibility / GEO | Frase focuses on traditional search content optimisation — analysing top-ranking pages to improve content quality and topical coverage. It does not include a dedicated GEO score or checks for AI-search visibility signals like llms.txt, AI crawler access, FAQPage schema, question-heading ratio, or content chunkability for AI parsing. | GEO score covers all five AI visibility signals: AI crawler access in robots.txt, llms.txt presence and completeness, FAQPage/HowTo structured data, question-heading ratio (≥20%), and content chunkability (avg section ≤400w). |
| Technical SEO | Frase does not perform technical SEO audits. It focuses on content research and optimisation but does not check canonical tags, redirect chains, crawlability, Core Web Vitals, structured data validity, sitemap configuration, or robots.txt. | 80+ checks across technical SEO (crawlability, canonicals, redirects, sitemap, robots.txt, HTTPS, structured data), on-page, performance (CrUX LCP/INP/CLS), links, and AI visibility. Each check shows severity, current state, and specific fix instructions. |
| Content research workflow | Frase's research workflow is its core: given a target keyword, it fetches and analyses the top SERP results, extracting headings, questions, topics, and statistics from competing pages. The output is a structured brief showing what the article should cover, what questions to answer, and what statistics to include — all sourced from what currently ranks. This SERP-based research brief significantly speeds up content production for writers targeting specific keywords. | DeepSEOAnalysis checks content structure signals on live pages (heading hierarchy, question-heading ratio for AI chunkability, content length, freshness) but does not generate pre-publication content briefs or analyse what competing pages cover for a target keyword. For content research and writing guidance, Frase is the better tool. |
| Core Web Vitals | Frase does not measure Core Web Vitals or page performance metrics. | Real Google CrUX field data — actual Chrome users in a 28-day rolling window. Pass/fail against Good/Needs Improvement/Poor thresholds for LCP, INP, and CLS. This is the exact data Google's ranking system uses. |
| Best fit | Content writers and SEO teams who want to speed up the keyword-to-published-article workflow: SERP research, topic identification, AI-assisted drafting, and content scoring — all in one tool. Best for teams producing many SEO-targeted articles per month who want to reduce research time and improve topical completeness against competing pages. | Developers, in-house SEO teams, agencies, and founders who need a complete technical and AI-visibility audit immediately — with real CrUX field data, CMS-specific fix instructions, and a shareable URL — on demand and free. |
What each product is
Frase is strongest for the content research and writing workflow: SERP-based topic extraction, AI-assisted content briefs, a content score measuring topical coverage against top-ranking pages, and an integrated AI writer for producing first drafts quickly.
DeepSEOAnalysis is strongest for technical audit depth: 80+ checks across technical, on-page, performance, structured data, links, and AI visibility — immediately on the first crawl, free with no account required, and a shareable report URL.
When to choose which
Pricing context
FAQ
Frase pricing starts at approximately $15/mo for the Solo plan (limited monthly documents), with Team plans at $45/mo and above for more documents and collaboration features. The AI Writer add-on (GPT-4-based content generation within Frase) is approximately $35/mo extra. Check frase.io for current pricing. DeepSEOAnalysis is permanently free for on-demand technical audits with no account required.
All three are content optimisation tools but with different emphases. Frase is strongest for the full research-to-draft workflow: SERP analysis generates a brief, and the AI writer helps produce content from that brief — it's the most integrated writing workflow. Surfer SEO emphasises the content score and real-time optimisation grade as you write, with strong Google Docs integration. Clearscope focuses on NLP-driven term recommendations with a simpler, cleaner interface and strong Google Docs integration. For AI-assisted writing, Frase has the most complete workflow; for optimisation grading during writing, Surfer is the benchmark.
Yes — they address different points in the content lifecycle. Use Frase to research and write SEO-targeted content (before publishing): analyse what top-ranking pages cover, write with the brief, optimise the content score. Use DeepSEOAnalysis to audit the published content's technical health (after publishing): check that the page is indexable, that metadata is unique and descriptive, that structured data is valid, that Core Web Vitals pass, and that AI visibility signals (FAQPage schema, llms.txt, AI crawler access) are in place. Strong content from Frase + sound technical infrastructure from DeepSEOAnalysis is the complete picture.
Yes — Frase includes an AI writing assistant (GPT-4-based) that generates content sections, outlines, introductions, and full drafts based on the SERP research brief. It's priced as an add-on (approximately $35/mo) on top of the base Frase subscription. The AI writer is most useful for generating first drafts and content outlines quickly; human editing and factual verification are still required before publishing, as with all AI content generation tools.
Paste a URL and get the complete technical SEO, Core Web Vitals, structured data, internal linking, CMS, and AI-visibility audit.
Run a free audit →