Hreflang
HTML, XML sitemap and HTTP-header alternates, self references, reciprocal targets, indexability and canonical consistency.
Technical SEO · EN / ES / DE and beyond
Find multilingual SEO problems before search engines do.
Crawl a website and inspect hreflang, canonicals, indexability, redirects, duplicate content, sitemap coverage, orphan candidates, internal links, metadata and structured data — without a black-box SEO score.
Same-origin crawl · Language-balanced sitemap discovery · Live or staging-aware interpretation · Public HTTP/HTTPS targets · Up to 100 pages synchronous · 250–1,000 pages via background worker · Completed reports kept for 7 days
Audit results
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Click any metric for an explanation and the URLs or checks behind that value.
Action plan
SEO priorities
Multilingual intelligence
Hreflang relationships
Coverage insights
Crawl coverage
SEO opportunities
Internal links & duplicate metadata
Internal-link opportunities
Repeated metadata groups
Environment
Audit environment
Repeated patterns
Likely shared root causes
URL normalization
Origin consolidation
Audit comparison
Changes since previous audit
Site-level checks
| Page | Lang | Hreflang | Canonical | Indexability | Issues |
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What it checks
Built for multilingual sites, with fewer false positives.
Metadata
Missing and duplicate titles/descriptions with language-aware duplicate handling and low-severity display heuristics.
Canonical
Missing, invalid or multiple canonical tags and pages that canonicalize elsewhere.
Social
Open Graph and Twitter/X metadata plus image URL, status, content type, detectable dimensions and explicit check coverage.
Sitemaps & links
robots.txt rules, sitemap discovery, crawl coverage, orphan candidates, crawl depth, contextual links and independent checks for uncrawled link targets.
Structured data
JSON-LD syntax parsing, discovered schema types and cautious semantic checks for common rich-result structures.
Content quality
Exact body-content duplicates, conservative language detection, H1 structure, thin-content heuristics and missing image alt attributes.
Redirects
Redirect chains, temporary redirects, sitemap redirects, host aliases and same-host links using a different scheme or port.
Patterns & provenance
Repeated issue root causes, canonical-preferred host inference, and the sitemap, internal-link, hreflang, canonical, redirect or start signal that brought each URL into the audit.
Change tracking
Compare a previous CSV or JSON export locally to see new and fixed issues, added or removed pages, and important metadata changes. JSON gives the most precise issue matching.
Staging → live
Mark pre-launch audits as staging, treat intentional noindex/robots protection as expected, and compare staging paths to production even when the hostname changes.