The technical SEO foundation of every Crawlux audit. Validates Core Web Vitals, crawlability, indexation, robots.txt and SPA rendering, calibrated for React, Vue and Next.js Web3 frontends with wallet integrations and chain-aware routing. Free first audit, no signup.
Technical SEO breaks down into three things that determine whether your site can be crawled, rendered and ranked. Crawlux checks all three on every audit.
Can search engines reach every page that should rank? We audit robots.txt, meta robots, canonicals, hreflang and XML sitemap structure. Crypto sites often misconfigure subroutes per chain, which breaks crawl budget without anyone noticing.
See full check list →Most Web3 frontends are React, Vue or Next.js single-page apps. Crawlux runs a headless Chrome browser to render JavaScript before crawling, then flags hydration mismatches, RPC failures and lazy routes that fail to render for Googlebot.
Crypto SEO guide →LCP, CLS and INP are direct ranking signals. Crawlux measures all three on mobile and desktop, then explains the actual root cause: hero image not preloaded, layout shift from late-loading wallet button, INP blocked by RPC call on connect.
View Core Web Vitals checks →Each check produces a prioritized fix in the PDF report. Severity ratings tell you what to ship first.
LCP, CLS and INP measured on mobile and desktop. Each fix names the specific resource: hero image, late wallet button, blocking RPC call.
LCP < 2.5s · CLS < 0.1 · INP < 200msHeadless Chrome renders React, Vue and Next.js sites before crawl. Flags hydration mismatches, RPC failures and lazy routes that fail in Googlebot.
React · Vue · Next.js · Nuxtrobots.txt parsed line by line. Each Allow / Disallow tested. AI bot rules (GPTBot, ClaudeBot, PerplexityBot) checked against your AEO strategy.
robots.txt · meta robots · AI botsEvery URL on the domain checked for index/noindex, canonical conflicts and orphan pages. Crypto subroutes per chain frequently break here.
index · noindex · canonical conflictsSelf-referencing canonicals validated. Hreflang clusters checked for symmetry. Cross-chain URL duplication flagged with a recommended canonical strategy.
canonical · hreflang · alt URLsDiscovers sitemap from robots.txt or /sitemap.xml. Validates URL formatting, lastmod dates and that listed URLs return 200 + index.
sitemap.xml · sitemap_index.xmlViewport meta, tap target size, text readability and mobile Core Web Vitals. Many wallet-modal designs break tap targets without anyone noticing.
viewport · tap targets · readabilityMaps the link graph. Flags orphan pages, deep-buried important URLs and pages that pass equity to dead-end paths.
orphan pages · click depth · equity flowAll 8 checks run on your domain in under 60 seconds. Combined with 7 other audit modules.
Technical SEO is module 01 of 08. The audit runs all eight modules together because issues cascade between layers.
Trust signals · Author bios · Audit firm citations
ChatGPT · Perplexity · Claude
FinancialProduct · CryptoExchange · SoftwareApplication
Top 20 sites · AEO deltas · Schema gaps
Lighthouse and PageSpeed Insights audit one URL at a time. Crawlux audits the entire domain plus the SPA rendering quirks specific to crypto frontends.
See your full technical SEO scorecard. Free first audit, no signup.
The technical SEO module runs alongside the seven other audit modules. Total audit time is typically under 60 seconds.
Headless Chrome opens the domain, fetches robots.txt and sitemap, then crawls every internal link. JavaScript renders fully before content is captured, so React, Vue and Next.js sites are audited as Googlebot would see them.
Crypto SEO guide →LCP, CLS and INP measured on simulated mobile (4G, mid-tier device) and desktop. Each metric is broken down by root cause: late hero image, layout shift from wallet button, INP blocked by RPC call on connect.
View CWV thresholds →Every URL classified by index status, canonical target and crawl reachability. Orphan pages and click depth issues surface here. Cross-chain duplicate URLs flagged for canonical strategy.
View indexation checks →Findings prioritized by severity (high / medium / low) and effort (5min / 1hr / dev required). The PDF includes file paths, code snippets and root-cause explanations so the dev team can ship without a translation step.
See PDF module →The Technical SEO module is included in every Crawlux audit alongside the seven other modules. Free first audit on any domain.
Common questions from teams running Crawlux's technical SEO module on crypto and Web3 sites.
The Technical SEO module checks Core Web Vitals (LCP, CLS, INP), crawlability via robots.txt and meta robots, indexation status, XML sitemap discovery, canonical configuration, hreflang setup, mobile-friendliness, SPA pre-render quality and internal linking patterns. Each check produces a prioritized fix in the PDF report.
See the full check list in the Inside the audit section above, or run a free audit on your domain.
Yes. Crawlux runs a headless Chrome browser to render JavaScript before crawling, so React, Vue, Next.js and Nuxt sites are audited as Googlebot would see them. Most crypto and Web3 sites use SPA frameworks, so this matters disproportionately. The module flags hydration mismatches, lazy-loaded routes that fail to render and JavaScript errors that block indexation.
Lighthouse and PageSpeed audit one URL at a time and focus on Core Web Vitals scoring. Crawlux audits the entire domain, including crawlability, sitemap configuration, canonical issues across pages, internal linking and orphan pages. Crawlux also explains why each issue matters for crypto sites specifically and produces a fix-by-fix PDF report.
Most domains complete in under 60 seconds. Larger sites with more than 1,000 pages may take 90-120 seconds. The audit runs in parallel: crawl, render, schema check and Core Web Vitals measurement happen simultaneously. The PDF report downloads automatically when complete.
Crawlux measures all three Core Web Vitals: Largest Contentful Paint (LCP), Cumulative Layout Shift (CLS) and Interaction to Next Paint (INP). Each metric is measured for both mobile and desktop. Fixes include specific recommendations like preloading hero images for LCP and reserving image dimensions for CLS.
Crypto sites tend to be SPA-heavy with wallet integrations, RPC calls and chain-aware routing that can trip up generic crawlers. Generic technical SEO tools miss issues like RPC failures during render, wallet-modal blocking critical content from crawl and chain-specific subroutes that share canonicals incorrectly. Crawlux is calibrated for these patterns.
Yes. The Technical SEO module fetches robots.txt and validates each directive. It checks for AI bot allow/disallow rules (GPTBot, ClaudeBot, PerplexityBot). It then discovers all sitemaps referenced in robots.txt or at /sitemap.xml, validates URL formatting, lastmod dates and checks that listed URLs are actually indexable.
The Technical SEO module is included in every Crawlux audit, alongside the other 7 modules. There is no module-only purchase. The Free tier includes Technical SEO and AI Visibility. The Pro and Team tiers include all 8 modules together. Most teams want the combined report, since technical issues cascade into ranking issues.
See pricing for the full tier breakdown.
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