HONEST ALTERNATIVE · SEO + AI VISIBILITY
OnCrawl is an enterprise technical SEO platform combining site crawling with log file analysis — revealing how Googlebot is actually crawling your site (which URLs it prioritises, how often, and where crawl budget is wasted) at scales of millions of pages. DeepSEOAnalysis is the accessible counterpart: a free, no-signup technical audit covering 80+ checks, real CrUX Core Web Vitals field data, structured data validation, and a GEO score for AI-search visibility — for sites up to 1,000 pages.
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 | OnCrawl is subscription-based with enterprise pricing — it's positioned at the high end of the technical SEO platform market. Pricing is not publicly listed in detail and is typically sold through a sales engagement. A free trial is available. OnCrawl is aimed at large-scale e-commerce, publishing, and enterprise SEO teams with complex technical crawl and log file analysis needs. | 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 | OnCrawl is an enterprise technical SEO platform combining two capabilities: (1) site crawler — crawls the live site and analyses content, links, and technical SEO signals at scale; (2) log file analyser — processes server access logs to show which URLs Googlebot is actually crawling, at what frequency, with what response codes, and where it's spending crawl budget. The combination of crawl data + log data gives a complete picture of how Google is experiencing the site — which pages it prioritises, which it ignores, and where crawl budget is being wasted. | 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. DeepSEOAnalysis doesn't analyse server log files — it crawls the live site from the outside, the same way Googlebot does. |
| AI visibility / GEO | OnCrawl focuses on technical crawl analysis and log file intelligence — understanding how bots are crawling your site at the infrastructure level. 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). |
| Log file analysis | OnCrawl's log file analysis is its most distinctive capability: by processing raw server access logs (Apache, nginx, CDN logs), it can show the actual Googlebot crawl behaviour — which URLs Googlebot crawled, when, how often, and with what response codes. This reveals crawl budget inefficiencies that a site crawler alone can't detect: URLs being crawled thousands of times per day (wasting crawl budget), important pages being crawled infrequently (ranking slowly for new content), and the lag between content publishing and Googlebot discovery. | DeepSEOAnalysis doesn't analyse server log files. It crawls the live site from the outside and measures the site as Googlebot sees it on each audit — detecting technical issues, checking canonical tags, validating structured data, and measuring Core Web Vitals. Log file analysis requires access to the server's access logs, which is outside the scope of an external site auditor. |
| Core Web Vitals | OnCrawl includes page speed analysis and Core Web Vitals integration within its technical SEO platform, providing CWV data as part of its comprehensive crawl reports. | 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. |
| Scale | OnCrawl is built for large-scale enterprise SEO: it handles crawls of millions of pages, processes large log file volumes, and provides a data warehouse of crawl + log data over time. It's designed for technically sophisticated SEO teams at large organisations — media companies, e-commerce platforms, financial services sites — where the number of pages and the complexity of the technical environment require enterprise tooling. | DeepSEOAnalysis free tier crawls 50 pages; paid plans crawl up to 1,000 pages. It's suited for SMBs, agencies managing mid-market clients, and individual site owners — not for enterprise-scale crawls of millions of pages. For very large sites with log file analysis needs, OnCrawl addresses a distinct and more complex use case. |
| Best fit | Large enterprises, major e-commerce platforms, news publishers, and sophisticated SEO agencies with access to server log files and a need for crawl-budget analysis at scale. Teams managing sites with millions of pages where understanding Googlebot's actual crawl behaviour (not just what's technically available to crawl) is critical. | Developers, in-house SEO teams at SMBs and mid-market companies, 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
OnCrawl is strongest for enterprise-scale log file analysis combined with technical crawling: Googlebot crawl behaviour, crawl budget efficiency, URL prioritisation patterns, and crawl coverage gaps — all at scales of hundreds of thousands to millions of pages.
DeepSEOAnalysis is strongest for on-demand technical audit depth at SMB and mid-market scale: 80+ checks across technical, on-page, performance, structured data, links, and AI visibility — free with no account required, and a shareable report URL.
When to choose which
Pricing context
FAQ
OnCrawl pricing is enterprise-focused and not publicly listed in detail for all tiers — it's typically sold through a sales engagement for custom plans based on site size, crawl frequency, and log file volume. A free trial is available. Check oncrawl.com or contact their sales team for current pricing. DeepSEOAnalysis is permanently free for on-demand technical audits with no account required.
Log file analysis processes the raw access logs from your web server to see every HTTP request — including requests from Googlebot. Unlike what you see in Google Search Console (an aggregated, sampled view), raw log files show exactly which URLs Googlebot crawled, at what time, with what response code, and from which Googlebot IP. This reveals: which pages Googlebot considers high-priority (crawled frequently), which it ignores (rarely or never crawled), where crawl budget is wasted (JavaScript/CSS files, session IDs, filtered URLs being over-crawled), and the actual lag between publishing and discovery. This data is invaluable for large sites where crawl budget optimisation significantly affects how quickly new content is indexed.
OnCrawl is designed for enterprise SEO teams at large organisations — major e-commerce platforms, news publishers, financial services sites, and travel companies — where the site has hundreds of thousands or millions of pages, server log file access is available, and the technical complexity of the crawl environment requires dedicated enterprise tooling. It's also used by specialist technical SEO agencies running large-scale audits for enterprise clients. For smaller sites (under 50,000 pages) without log file access or a need for real-time crawl budget analysis, DeepSEOAnalysis covers the essential technical audit needs.
Not for the log file analysis use case — that requires access to raw server logs and is a distinct capability. For the site crawl and technical audit dimension, DeepSEOAnalysis covers the essential checks (canonical tags, redirects, structured data, Core Web Vitals, AI visibility, internal link structure) for sites up to 1,000 pages per audit. Enterprise sites that need crawl-budget analysis across millions of pages, combined with log file data, are in OnCrawl's wheelhouse. DeepSEOAnalysis is the better choice for immediate, free, ungated technical audits with AI-visibility scoring.
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