Free SEO tools
Free, no signup. Tools I built to help you. Most run entirely in your browser — no signup, nothing stored.
Guided workflows
Finish a job, not just a check
Choose a browser-local recipe. Each step opens separately and runs only when you start it.
Diagnose an indexing problem
Check the page-level signals first, then its canonical signals, then crawler access.
Publish a page with clean SEO signals
Review the page, validate its structured data, then confirm which rich-result requirements are actually met.
Investigate traffic or indexing loss
Rule out observable indexing and canonical problems before checking whether performance is part of the change.
Plan and verify a migration
Use the dedicated command center to build the map, verify deployment, reconcile sitemaps, and preserve a browser-local report.
More guided workflows
Audit a migration
Trace representative redirects and map chains in bulk, then validate the migration sitemap.
Investigate an unfamiliar domain
Compare public DNS, delivery-network evidence, and registry records without treating any one source as proof of ownership.
Validate structured data
Separate syntax and entity issues from the requirements that limit rich-result eligibility.
Audit AI crawler access
Review the site-level AI crawler policy, then verify the underlying robots rules against the same public target.
Investigate rendering differences
Compare raw and rendered output, then check whether the mobile presentation creates a separate observable problem.
Improve AI search readiness
Check crawler access, compare rendered content, then assemble the broader readiness report.
Turn paid-search evidence into organic work
Join channel exports, isolate landing-page mismatches, and prioritize spend that organic improvements may replace.
Run pre-release SEO QA
Compare staging with production, then verify the production target against performance evidence.
Recommended starting points
Useful right now
SEO Opportunity Finder
Choose an evidence-backed content, link, or technical SEO workflow, then open the free tool that can evaluate it without turning every warning…
Google Index Checker
Check one URL’s observable indexability blockers, or reconcile sitemap, crawl, and supplied Search Console evidence across a URL set before…
robots.txt Tester
Test pages against bots with a matcher ported from Google's open-source robots.txt parser — a blocked/allowed matrix with the exact winning rule…
HTTP Status & Redirect Checker
Paste up to 500 URLs — status codes, full redirect chains, final destinations, per-hop and total latency, response-header evidence, canonical…
Schema Markup Validator
Paste JSON-LD or a full HTML page and get severity-tiered structured-data validation — schema.org vocabulary, Google rich-result requirements…
SERP Snippet & Truncation Checker
Measure title-tag and meta-description widths with consistent font stand-ins and compare them with configurable desktop and mobile preview…
Tool finder
All free SEO tools
Search the collection or use the category tabs.
Scout Site Audit Free
Run a bounded same-site raw-HTML crawl, compare detector and inferred-cohort changes across snapshots or sites, and export provenance-rich CSV and finding-packet reports.
patrickstox.com › tools › Crawling & indexingGoogle Index Checker
Check one URL’s observable indexability blockers, or reconcile sitemap, crawl, and supplied Search Console evidence across a URL set before verifying Google’s actual state in URL Inspection.
patrickstox.com › tools › Crawling & indexingCanonicalization Checker
Audit HTML and HTTP canonical signals, test the canonical target, and identify observable conflicts that can cause Google to choose a different URL.
patrickstox.com › tools › Crawling & indexingrobots.txt Tester
Test pages against bots with a matcher ported from Google's open-source robots.txt parser — a blocked/allowed matrix with the exact winning rule per cell, file lint, sitemap-conflict detection, a diff mode for proposed changes, and a separate live robots.txt fetch for each entered origin.
patrickstox.com › tools › Crawling & indexingXML Sitemap Validator
Paste, upload, or fetch a sitemap by URL — errors, warnings, and a health score with line numbers. Pasted and uploaded sitemaps are validated entirely in your browser.
patrickstox.com › tools › Crawling & indexingLog File Analyzer
Drop a server access log and see crawl budget by bot and section, status-code waste, an AI-vs-search breakdown, and a spoofer report that names impostors faking a crawler user-agent. Parses nginx, Apache, IIS/W3C, and JSON logs entirely in your browser — nothing is uploaded.
patrickstox.com › tools › Crawling & indexingFaceted Navigation Auditor
Classify supplied parameter URLs, surface crawl traps, and advise on facet controls.
patrickstox.com › tools › Crawling & indexingGooglebot Verifier
Check whether an IP claiming to be Googlebot, Bingbot, GPTBot, ClaudeBot, or another crawler is genuine — published IP ranges plus forward-confirmed reverse DNS, with the real network owner named for spoofers. IPs are checked in memory and never stored.
patrickstox.com › tools › Crawling & indexingSEO Incident Simulator
Practice thirty deterministic technical SEO incident investigations — indexability, crawl controls, redirects, sitemaps, markup, caching, DNS, bot verification, rendering, hreflang, and faceted navigation — with clearly labeled fixture evidence and Find → Fix → Verify handoffs.
patrickstox.com › tools › Crawling & indexingIndexNow Submitter
Validate and explicitly submit a same-host URL list to IndexNow; Google does not use IndexNow.
patrickstox.com › tools › Crawling & indexingrobots.txt Generator
Build a copy-ready robots.txt with grouped search, AI-training, assistant, and archive-crawler presets; optionally add a documented Bingbot crawl-delay; test a bot against sample URLs using a Google-style matcher. Runs entirely in your browser.
patrickstox.com › tools › Crawling & indexingXML Sitemap Generator
Generate an XML sitemap from a capped, robots-respecting same-site crawl. Noindex, off-canonical, failed, and uncertain URLs remain visibly separate; lastmod dates are emitted only when the page provides evidence.
patrickstox.com › tools › Crawling & indexingWayback Change History
Load cached archive snapshots and compare text changes over time.
patrickstox.com › tools › Crawling & indexingHistorical Page Comparison
Compare one bounded Common Crawl capture with the current page’s metadata, canonicals, robots directives, structured-data types, word count, and extracted-text changes; source HTTP statuses remain separate observations.
patrickstox.com › tools › Crawling & indexingCrawl Export Comparator
Normalize two Screaming Frog, Sitebulb, Scout, or generic crawl exports and review added, removed, and field-changed URLs by path template without uploading the files.
patrickstox.com › tools › Domain & site healthDomain Report
Run one bounded report for public DNS, registry RDAP data, hosting evidence, reachability, and website safety signals, with each section linked to its focused tool.
patrickstox.com › tools › Domain & site healthWebsite Down Checker
Check whether one URL or a small sample is reachable right now from one Cloudflare location, with response timing, redirects, DNS fallback evidence, and connection-status details.
patrickstox.com › tools › Domain & site healthWebsite Safety & Security Checker
Get an honest, graded security snapshot: response headers, insecure resource and form signals, security.txt, registry age, fetch/TLS outcome, and optional Google Web Risk advisory evidence.
patrickstox.com › tools › Domain & site healthHTTP Status & Redirect Checker
Paste up to 500 URLs — status codes, full redirect chains, final destinations, per-hop and total latency, response-header evidence, canonical checks, and redirect-system clues. Filter, compare snapshots, and export CSV. No signup, nothing stored.
patrickstox.com › tools › Domain & site healthHTTP Header Checker
Inspect complete response headers across every redirect hop, with separate security and SEO grades, CDN/edge fingerprints, compression details, and a staging-versus-production diff.
patrickstox.com › tools › Domain & site healthDNS Checker
Compare A, AAAA, CNAME, MX, TXT, NS, SOA, CAA, SRV, and PTR answers from Cloudflare and Google to spot DNS propagation differences.
patrickstox.com › tools › Domain & site healthStaging vs. Production SEO Diff
Compare matched release URLs across redirects, canonicals, robots directives, hreflang, selected headers, schema eligibility, and raw or optionally rendered content with honest not-evaluated states.
patrickstox.com › tools › Domain & site healthHosting Checker
Find a domain's public IP network, CDN or edge platform, DNS and mail-host evidence, and response transfer facts without pretending a proxy reveals the origin.
patrickstox.com › tools › Domain & site healthWhois / RDAP Lookup
Look up registrar, registration and expiry dates, nameservers, EPP domain-lock statuses, and privacy-redacted registrant information via RDAP.
patrickstox.com › tools › Domain & site healthCMS & Tech Detector
Inspect a public page's visible HTML and selected response headers for CMS, framework, CDN, and analytics fingerprints.
patrickstox.com › tools › Domain & site healthPage and Website Authority Checker
Look up backlink- and web-graph-based page and domain authority metrics from Moz, Ahrefs, DataForSEO, Semrush, Majestic, OpenPageRank, and Common Crawl.
patrickstox.com › tools › Domain & site healthPre-publish Comparison
Compare draft and live HTML locally across normalized head signals, heading outlines, and structured data with honest not-evaluated states.
patrickstox.com › tools › Redirects & migrationsSEO Migration Planner & Validator
Run a five-step SEO migration workflow: build and review a redirect map, verify deployed redirects, check old-URL status, compare sitemaps, and spot-check Wayback history.
patrickstox.com › tools › Redirects & migrationsRedirect Map Builder
Plan a site migration: paste old and new URLs and get a suggested 301 map — each row scored into a confidence tier with a plain reason, an override dropdown, a first-class unmatched bucket, a 410 kill-list, chain-flattening so the map never creates the chains it prevents, and platform-accurate exports for Apache, nginx, and Cloudflare. Optional metadata-only content matching closes the last-mile gaps. Structural matching runs entirely in your browser.
patrickstox.com › tools › JavaScript & renderingRaw vs. Rendered HTML Checker
See what's in your page's initial HTML versus after JavaScript runs — headless-Chrome rendering only when the page actually needs it, a rendering-strategy verdict (SSR / prerendered / CSR / hybrid), ~15 calibrated JavaScript-SEO checks (noindex, canonicals, robots.txt blocking, links, soft 404s), a side-by-side raw-vs-rendered diff, and shareable reports.
patrickstox.com › tools › Structured data & entitiesSchema Markup Validator
Paste JSON-LD or a full HTML page and get severity-tiered structured-data validation — schema.org vocabulary, Google rich-result requirements, cross-block @id graph checks, and a corrected copy-pasteable JSON-LD block.
patrickstox.com › tools › Structured data & entitiesRich-Result Eligibility Checker
Paste JSON-LD, an HTML page, or fetch a live URL and compare detected types with the Google rich-result requirements this tool tracks — ✓ requirements met, ✗ a missing required field, ⚠ recommended fields — across Product, Article, Recipe, Video, Event, JobPosting, Breadcrumb, Organization, and more. Analysis runs in your browser; Google alone decides whether a result appears.
patrickstox.com › tools › Structured data & entitiesSchema Markup Generator
Free JSON-LD generator with 19 focused forms plus all 921 vendored Schema.org types. Browse inherited properties and expected ranges, use honest Google/Bing/retired badges, compose @graphs, and export six output formats.
patrickstox.com › tools › Structured data & entitiesEntity Coverage Analyzer
Extract likely page entities, reconcile selected matches, and draft transparent about/mentions JSON-LD.
patrickstox.com › tools › Structured data & entitiesGoogle Knowledge Graph Explorer
See whether Google's Knowledge Graph knows a person, company, or brand — the entity's name, types, description, and machine ID — with a step-by-step playbook if it doesn't, copy-paste schema.org JSON-LD if it does, and a side-by-side comparison of two entities.
patrickstox.com › tools › Structured data & entitiesSemantic Site Map
Explore this site's build-time semantic center, topic coherence, article outliers, and nearest editorial neighbors.
patrickstox.com › tools › On-page & contentOn-Page SEO Checker
A prioritized top-five on-page memo plus advanced raw-HTML checks for headings, links, images, favicons, and social metadata.
patrickstox.com › tools › On-page & contentSEO Opportunity Finder
Choose an evidence-backed content, link, or technical SEO workflow, then open the free tool that can evaluate it without turning every warning into an opportunity.
patrickstox.com › tools › On-page & contentHeading Structure Checker
Paste HTML or fetch a public page to visualize its heading hierarchy, catch skipped levels and empty headings, compare its H1 with the title, and preview a table of contents.
patrickstox.com › tools › On-page & contentLink Analyzer
Inspect a page’s links and linked resources with source locations, calibrated anchor-text findings, and optional batched HTTP status checks.
patrickstox.com › tools › On-page & contentImage SEO Checker
Audit raw HTML image signals: alt attributes, lazy-loading hints, fetch priority, source formats, and ImageObject markup.
patrickstox.com › tools › On-page & contentCommodity Content / Information Gain Checker
Compare one page with 3–5 competitors to inspect deterministic overlap, unique statements, and an artifact-bound Experience proxy.
patrickstox.com › tools › On-page & contentAI Content Brief Generator
Assemble an exportable brief while preserving which research inputs are observed, heuristic, or not evaluated.
patrickstox.com › tools › On-page & contentContent Gap Analyzer
Cluster competitor keyword wins and optionally compare ranking-page inlinks, anchors, crawl depth, and internal support.
patrickstox.com › tools › On-page & contentInternal Link Cluster Visualizer
Analyze a bounded supplied internal-link graph, orphans, PageRank, and lexical missing-link suggestions.
patrickstox.com › tools › On-page & contentContent Completeness Audit
Audit 14 useful content formats with deterministic presence checks and optional, explicitly enabled editorial AI gating.
patrickstox.com › tools › SERP & snippetsSERP Snippet & Truncation Checker
Measure title-tag and meta-description widths with consistent font stand-ins and compare them with configurable desktop and mobile preview guidance. Single check or bulk CSV — runs entirely in your browser, nothing is uploaded.
patrickstox.com › tools › SERP & snippetsGoogle SERP Simulator
Interactive Google result preview: type a title, description, and URL, compare controlled-font desktop + mobile truncation guidance with simulated query bolding, copy the finished tags, and share a filled-in preview.
patrickstox.com › tools › SERP & snippetsOpen Graph & Social Preview
Fetch a page as a real crawler or browser user-agent, preview its Open Graph and X cards across nine surfaces, verify the image, and edit copy-ready meta tags locally.
patrickstox.com › tools › SERP & snippetsFavicon Checker
Inspect favicon, Apple touch icon, mask icon, manifest, and Microsoft tile declarations, with coverage gaps and surface previews.
patrickstox.com › tools › SERP & snippetsMeta Title Generator
Generate five SEO title-tag options with AI, then compare their measured widths with approximate desktop and mobile SERP-preview guidance. Each variant is scored for keyword placement and length; you also get a matching meta description and a copy-ready tag block. Quick, paste-content, fetch-URL, and small bulk (≤10) modes. Falls back to editable templates when AI is off.
patrickstox.com › tools › SERP & snippetsMeta Description Generator
Generate five meta-description options with AI, then compare their measured widths with approximate desktop and mobile SERP-preview guidance. Variants are scored for the keyword, a call to action, and length; you also get a matching title tag and a copy-ready tag block. Quick, paste-content, fetch-URL, and small bulk (≤10) modes. Falls back to editable templates when AI is off.
patrickstox.com › tools › Keywords & search demandKeyword Idea Generator
Build transparent question, comparison, and modifier planning ideas with local clustering and no invented volumes.
patrickstox.com › tools › Keywords & search demandGoogle Search Console Hidden Query Estimator
Upload a Search Console performance export plus an Ahrefs or Semrush keyword export, and see which queries plausibly explain the clicks and impressions GSC hides below its privacy threshold — per-page confidence-tiered estimates, CSV export. Runs entirely in your browser.
patrickstox.com › tools › Keywords & search demandWhich Pages Should I Work On?
Rank GSC pages by striking-distance, CTR-gap, and decay opportunity.
patrickstox.com › tools › Keywords & search demandGoogle Search Console CSV Analyzer
Explore page-query pivots, template-like URL segments, topics, custom CTR curves, cannibalization, and opportunities from uploads or an optional read-only browser session.
patrickstox.com › tools › Keywords & search demandGSC Regex Builder & Tester
Lint RE2 regex syntax and test Search Console filters against your own query list in the browser.
patrickstox.com › tools › Keywords & search demandBrand/Non-Brand Splitter
Split GSC or Ads query rows into typo-tolerant brand and non-brand CSVs locally in your browser.
patrickstox.com › tools › Keywords & search demandBrand Suggest Auditor
Review reputation and comparison query framings around a brand without overstating them as live suggestions.
patrickstox.com › tools › Keywords & search demandAI Search Volume Estimator
Turn traditional Google keyword volume into an estimated AI search volume — per system (ChatGPT, Gemini, Perplexity, Copilot) and overall — with editable, sourced market-share and behavior adjustments and Google AI Overviews shown separately. Single keyword or bulk CSV, runs entirely in your browser.
patrickstox.com › tools › Vertical SEOLocal SEO Checker
Audit raw LocalBusiness schema and visible NAP/service-area signals.
patrickstox.com › tools › Vertical SEOPDP SEO Checker
Audit raw product schema, price, availability, and visible-price consistency.
patrickstox.com › tools › Vertical SEONews SEO Checker
Audit raw NewsArticle schema, publication-date, and author signals.
patrickstox.com › tools › Vertical SEOVideo SEO Checker
Audit VideoObject, thumbnail, key-moment, and embed signals in raw HTML.
patrickstox.com › tools › Vertical SEOAI Commerce Validator
Validate public agentic-commerce discovery and XML/TSV merchant-feed readiness against a dated local baseline.
patrickstox.com › tools › Vertical SEOLocal SERP Generator
Build a Google search link for a manual city or coordinate, country, language, and device context — without scraping results.
patrickstox.com › tools › AI search visibilityAI Search Readiness Report
See independently whether AI crawlers can retrieve your page, and which future use, citation, and representation checks are still unavailable — with visible stage weights and no single AI score.
patrickstox.com › tools › AI search visibilityAI Brand Visibility Checker
Sample a labelled model response about a brand, distinguish mentions from citations, and save local snapshots for comparison.
patrickstox.com › tools › AI search visibilityAI Citation Readiness Checker
Separate citability from retrieval evidence, with transparent named weights and a per-model freshness-adjusted view.
patrickstox.com › tools › AI search visibilityCitation Gap Checker
Spot unsupported numerical and research-style claims, aging statistics, and citations that need human verification.
patrickstox.com › tools › AI search visibilityQuotable Sentence Finder
Find the self-contained, specific sentences an AI answer engine can quote, and inspect six familiar readability formulas. Paste mode stays in your browser.
patrickstox.com › tools › AI search visibilityChunk Tester
Paste content or a URL and see how a retrieval system would split it into the chunks AI answer engines actually retrieve and cite — colored chunk bands, token estimates, and flags for chunks that retrieve badly (too long, no heading context, dangling pronouns, split tables and lists). Adjustable chunk size and overlap; runs in your browser.
patrickstox.com › tools › AI search visibilityAI Answer Preview
Simulate a context-only answer from your page and flag answer sentences that do not match a source passage.
patrickstox.com › tools › AI search visibilityQuery Fan-Out Simulator
Generate labelled sub-query approximations around a question and check page coverage without claiming to observe a private search system.
patrickstox.com › tools › AI search visibilityQuotability & Entity-Preserving Rewriter
Rewrite one paragraph for citability or preserve a declared entity/keyword set; not a general paraphraser.
patrickstox.com › tools › AI search visibilityAI Search Evidence Lab
Analyze repeated AI-answer captures for citation stability, topic-specific source patterns, prompt coverage, fact conflicts, URL failures, and bounded intervention results.
patrickstox.com › tools › AI search visibilityAI Content Audit
Run one deterministic GEO/AEO audit across extractability, answer-ready structure, and citation trust, with a transparent 0–100 score and a prioritized fix list.
patrickstox.com › tools › AI crawlers & agentsAgent Readiness Checker
Check public MCP, agent-card, llms.txt, security, and Content-Signals discovery markers.
patrickstox.com › tools › AI crawlers & agentsAI-Crawler Access Checker
Enter a URL and see, for every major AI crawler — GPTBot, ClaudeBot, PerplexityBot, Google-Extended, and more — whether your robots.txt allows or blocks it, the exact winning rule, and whether an llms.txt exists. Matcher ported from Google's open-source robots.txt parser. Includes a copy-paste posture generator and the Googlebot/AI-Overviews coupling spelled out.
patrickstox.com › tools › AI crawlers & agentsllms.txt Generator + Validator
Generate a well-formed llms.txt that points LLMs at your key pages, or paste/fetch one and check it's valid — H1, summary, well-formed absolute links, duplicates, and off-site flags. Loud and honest that llms.txt is a community proposal, not an official standard AI crawlers are documented to read. Runs entirely in your browser.
patrickstox.com › tools › AI crawlers & agentsSEO MCP Server
Connect an AI agent to a read-only MCP server for published SEO content, crawler-IP verification, schema validation, and bounded redirect-chain tracing.
patrickstox.com › tools › PPCGoogle Ads Hidden Search Terms Estimator
Upload a Google Ads search-terms report plus a GSC queries export or Ahrefs/Semrush keyword export, and see which on-theme queries never show up as a visible search term — likely folded into the "(other)" aggregate row — with match rationale and a negative-keyword side output. Runs entirely in your browser.
patrickstox.com › tools › PPCNegative Keyword Generator
Review high-spend, zero-conversion off-theme terms as Ads negative candidates.
patrickstox.com › tools › PPCAuction Insights Trend Visualizer
Inspect competitor impression-share and overlap trends, including censored values.
patrickstox.com › tools › PPC + SEOPaid/Organic Overlap Quadrant
Join Ads and GSC data into paid-only, organic-only, strong-both, and weak actions.
patrickstox.com › tools › PPC + SEOLanding-Page Mismatch Finder
Compare paid landing pages with GSC organic results for the same terms.
patrickstox.com › tools › PPC + SEOBrand Bid Decider
Compare Ads and organic brand signals, with transparent test-pausing and holdout guidance.
patrickstox.com › tools › PPC + SEOPPC → SEO Arbitrage Prioritizer
Prioritize paid terms where organic improvements could replace spend, plus converting paid-only content briefs.
patrickstox.com › tools › PPC + SEORSA ↔ Title Tag Cross-Pollinator
Compare RSA headline signals and title tags by landing page to uncover unused copy angles.
patrickstox.com › tools › Forecasting & ROISEO ROI Calculator
Model the revenue impact of an SEO investment — content, links, technical, or a full program — with conservative/optimistic scenarios, a break-even chart, and a paid-ads comparison. Runs entirely in your browser.
patrickstox.com › tools › Forecasting & ROISEO Forecast
Upload GSC, GA4, Ahrefs, Semrush, or Adobe time series and forecast it with backtested models — Google algorithm updates handled as level shifts, migration/anomaly detection, honest prediction intervals from your own history, and a seasonality explainer. Everything runs in your browser.
patrickstox.com › tools › Forecasting & ROIEnterprise SEO ROI Calculator
Model your SEO program as an acquisition channel: organic CAC, gross-margin LTV (optionally NPV-discounted), CAC payback, and a cohort-based gross-profit vs. cost chart. Runs entirely in your browser.
patrickstox.com › tools › Performance & Core Web VitalsPage Speed Test & Core Web Vitals Checker
One sentence tells you whether a page passes Core Web Vitals and what to fix first — real Chrome user data (CrUX) with a Lighthouse lab fallback, mobile and desktop side by side, loudly-labeled data sources, and prioritized diagnostic fixes. Plus a bulk origin scorecard with CSV export.
patrickstox.com › tools › Performance & Core Web VitalsHAR Analyzer
Analyze a HAR locally for failures, redirects, transfer weight, timings, cache evidence, third parties, and tag requests without uploading the capture.
patrickstox.com › tools › Performance & Core Web VitalsMobile-Friendly Tester
Run a seven-part mobile-layout diagnostic — a 0–100 product score for viewport, responsive CSS, fixed widths, font sizes, images, page weight, and plugins, plus a separate phone-viewport preview.
patrickstox.com › tools › Performance & Core Web VitalsCore Web Vitals History & Competitor Comparison
Chart 40 weeks of real-Chrome-user Core Web Vitals — p75 LCP, INP, CLS, FCP, and TTFB from the Chrome UX Report — and compare up to 5 origins or URLs on one chart. Plus a competitor Leaderboard that ranks curated groups of SEO and page-speed tools on each metric. Pass/fail scorecards, mobile vs desktop, shareable links, CSV export.
patrickstox.com › tools › AccessibilityAccessibility Tester
Run a browser-rendered axe-core WCAG 2.2 A/AA audit, grouped by severity with affected selectors and focused repair guidance. Automated checks are a starting point, not a complete accessibility review.
patrickstox.com › tools › AccessibilityColor Contrast Checker
Check WCAG 2.2 AA and AAA contrast for any foreground/background pair, find nearest passing colors, and audit CSS or design-token palettes locally in your browser.
patrickstox.com › tools › International SEOhreflang Generator + Linter
Enter your URL × locale matrix and get bidirectional hreflang markup as head tags, sitemap XML (auto-split past 50,000 URLs), and Link headers — linted live for wrong region codes, duplicates, and missing fallbacks. Runs entirely in your browser.
patrickstox.com › tools › International SEOreturntag - hreflang checker
Enter one URL or an XML sitemap and the returntag - hreflang checker crawls the whole hreflang cluster — missing return tags, broken targets, self-reference and x-default checks, language-code validation, and head vs Link header vs sitemap disagreements — on an interactive cluster map with CSV export. The check Search Console's International Targeting report used to run.
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Free, no signup. All tools here are free to use on this site. The code and the APIs behind them are © Patrick Stox LLC — endpoints are origin-locked and rate-limited, not offered as a public API. Want to license a tool or build an integration? Get in touch.