ToolGrid — Product & Engineering
Leads product strategy, technical architecture, and implementation of the core platform that powers ToolGrid calculators.
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Hreflang Checker validates rel="alternate" hreflang markup from pasted HTML to surface duplicates, invalid codes, and missing x-default in seconds. You paste page HTML, run the check, and receive a clear issue list with a practical score so content and technical teams can fix international targeting problems quickly. This solves a frequent multi-language SEO pain point where small markup mistakes cause misaligned search results or cannibalization across locales. A sample input shows proper formatting. For premium users, an optional AI Assistant generates a prioritized remediation plan focused on deduplication, defaults, and standards alignment, executed on the backend and triggered manually.
Note: AI can make mistakes, so please double-check it.
Generate prioritized fixes for language/region coverage and defaults.
Parse and validate hreflang alternate links for duplicates, invalid codes, and missing x-default.
Common questions about this tool
Paste your page HTML and run the checker. It extracts alternate links and reports duplicates, invalid codes, and missing x-default.
x-default is a fallback language/region designation for users who do not match listed variants. It helps Google serve an appropriate default page.
Duplicates can confuse search engines about the correct alternate for a locale and may lead to inconsistent targeting.
Use two-letter ISO language codes and optional two-letter region codes (e.g., en, en-GB, fr-CA). Avoid unsupported or misspelled codes.
No. It analyzes pasted HTML and does not fetch live pages. Use it during QA and pre-publish reviews for fast validation.
Paste your page HTML and run the checker for an instant issue list and score. Fix duplicates, invalid codes, and add x-default if missing.
Include a rel="alternate" link with hreflang="x-default" pointing to your best global or region-selection page.
Use two-letter ISO language codes and optional region codes (e.g., en, en-GB). Remove or correct unrecognized values.
Ensure canonical URLs point to the self-version for each locale and that hreflang alternates reference each other accordingly.
No. Provide the page HTML manually. This preserves stateless speed and avoids crawler variability during QA.
Verified content & sources
This tool's content and its supporting explanations have been created and reviewed by subject-matter experts. Calculations and logic are based on established research sources.
Scope: interactive tool, explanatory content, and related articles.
ToolGrid — Product & Engineering
Leads product strategy, technical architecture, and implementation of the core platform that powers ToolGrid calculators.
ToolGrid — Research & Content
Conducts research, designs calculation methodologies, and produces explanatory content to ensure accurate, practical, and trustworthy tool outputs.
Based on 2 research sources:
Learn what this tool does, when to use it, and how it fits into your workflow.
Hreflang Checker analyzes pasted HTML and reports problems in rel="alternate" hreflang markup. It flags duplicates, invalid language-region codes, and missing x-default, and returns a simple score so you can triage fixes quickly. This is ideal for international sites and localized landing pages where subtle markup mistakes cause wrong-region results or cannibalization.
Use it for how to check hreflang tags, validate hreflang codes, and find missing x-default during QA, audits, or pre-publish reviews.
x-default for global fallbackAfter validation, consider broader audits with SEO Analyzer, Canonical URL Checker, Heading Structure Checker, Meta Description Generator, and Website SEO Checker.
<link rel="alternate" ...> tags.Use two-letter ISO language codes and optional two-letter region codes (for example en, en-GB, fr-CA). Avoid unsupported or mixed-case variants. Include x-default as a fallback target when appropriate.
If you need a prioritized fix plan, use the optional AI Assistant to translate your issue list and score into actionable steps.
We’ll add articles and guides here soon. Check back for tips and best practices.
Summary: Hreflang Checker validates rel="alternate" hreflang markup from pasted HTML to surface duplicates, invalid codes, and missing x-default in seconds. You paste page HTML, run the check, and receive a clear issue list with a practical score so content and technical teams can fix international targeting problems quickly. This solves a frequent multi-language SEO pain point where small markup mistakes cause misaligned search results or cannibalization across locales. A sample input shows proper formatting. For premium users, an optional AI Assistant generates a prioritized remediation plan focused on deduplication, defaults, and standards alignment, executed on the backend and triggered manually.