Seodity alternative: all-in-one SEO suite vs CrUX technical audit

Seodity is an all-in-one SEO platform that combines keyword research (search volume, keyword difficulty, SERP analysis), daily rank tracking across multiple search engines, a site audit tool that crawls your website for technical and on-page SEO issues, and backlink analysis (referring domains, anchor text, new and lost links). It is designed to cover the full organic SEO workflow in a single subscription — from keyword discovery and competitor gap analysis through to position monitoring and technical issue detection. Seodity is positioned as an accessible alternative to Ahrefs and Semrush, with a lower starting price point and a focus on covering the essential SEO workflows without the complexity of enterprise-scale tools.

Seodity's site audit crawls your website and flags technical issues such as broken links, missing meta tags, duplicate content, slow page load times, and redirect chains — standard technical SEO checks delivered through a crawler-based report. DeepSEOAnalysis performs a similar crawl but adds two layers that Seodity's audit does not provide: real CrUX field data for Core Web Vitals (actual Chrome user measurements rather than simulated lab scores), and deep structured data validation (checking every schema.org type present on the page against required property specifications for rich result eligibility). DeepSEOAnalysis also scores AI visibility — checking llms.txt, AI crawler access permissions, FAQPage schema, and GEO signals — which Seodity does not assess. For keyword research, rank tracking, and backlink analysis, Seodity is the stronger tool; for technical depth on CWV field data and structured data validation, DeepSEOAnalysis provides more diagnostic detail.

CrUX field data is more accurate for SEO purposes because it is the measurement Google actually uses as a ranking signal. CrUX (Chrome User Experience Report) aggregates real performance measurements from Chrome users visiting your site over a 28-day rolling window, capturing the 75th percentile (p75) of LCP, INP, and CLS across actual devices, network conditions, and geographies. Seodity's page speed reporting uses lab-based synthetic measurements — a simulated page load run in a controlled environment — which reflects how a page might perform under idealised conditions, not how it actually performs for your real user base. Lab data and field data frequently diverge significantly: a page can score well in lab conditions while failing CrUX thresholds (because real users on mobile, slow connections, or with browser extensions experience the page differently), or a page can pass CrUX thresholds while showing a lower lab score (because real users happen to be on fast networks in your specific geography). For diagnosing whether your pages actually meet Google's ranking threshold, only field data (CrUX) gives a reliable answer.

Lab Core Web Vitals (also called synthetic or simulated measurements) are measured by loading a page in a controlled, reproducible environment — a single device configuration, a fixed network speed (typically throttled to simulate a mid-range mobile connection), and no user extensions or browsing history. Tools like Lighthouse, PageSpeed Insights's lab report, WebPageTest, and most SEO platform site audits (including Seodity) use lab data. Lab data is useful for diagnosing specific performance bottlenecks (identifying slow resource loads, render-blocking scripts, or large layout shifts in a controlled setting) and is reproducible across runs. Field Core Web Vitals (CrUX data) are aggregated from real Chrome user sessions visiting your site over the past 28 days. They capture the actual distribution of performance your real users experience — across all device types, network conditions, screen sizes, browser configurations, and geographies. Google uses CrUX p75 field data, not lab data, as the Page Experience ranking signal. DeepSEOAnalysis pulls your CrUX p75 values directly from the CrUX API so you can see exactly what Google sees for your URLs. The practical implication: if you are trying to confirm whether your pages meet Google's Good threshold for ranking purposes, you must check field data. Lab scores alone will not tell you whether you pass or fail Google's actual ranking measurement.