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Hreflang Checker

Hreflang Checker inventories alternate language links, validates tags, and samples return-tag reciprocity. Paste a URL, review findings on ToolYour.

Waiting for bot check… this usually takes a second.

What next?

Keep going with Hreflang Checker

Finish this check in the browser, then pick the path that matches how you work — another related tool, REST for apps, or MCP for agents.

  1. 1. Related check

    After this result, run Page speed analyzer for the next signal.

    Page speed analyzer
  2. 2. Automate with API

    Same job from your server with X-Api-Key. Free tier includes 500 credits/month.

    Create free account
  3. 3. Hand off to an agent

    Connect Cursor or Claude to ToolYour MCP — plan → run → verify.

    MCP setup

What is Hreflang Checker?

International pages fail quietly when hreflang tags are missing, invalid, duplicated, or not reciprocated. Search systems need a clear language/region map so the right locale ranks in the right market.

This Hreflang Checker fetches a public URL, inventories rel=alternate hreflang links, flags invalid BCP-47-style tags, duplicates, missing x-default, and whether the page references itself. It also samples a capped set of alternate URLs to verify return tags. No generative AI — HTML parse and HTTP checks only.

Use it before launching multi-locale templates, after CMS i18n plugin changes, and when Search Console international targeting looks wrong.

What are common questions about Hreflang Checker?

Is x-default required?

Not always, but for multi-language sites a x-default fallback is strongly recommended.

Are HTTP Link headers checked?

v1 focuses on HTML link tags. Header-based hreflang may be incomplete.

Does a clean report guarantee rankings?

No. Correct hreflang helps targeting; rankings still depend on content, links, and indexing.

What does this hreflang checker validate?

It inventories alternate hreflang links, checks tag format, duplicates, x-default, self-reference, and samples return tags on alternate URLs.

Who should run this?

Intl SEO, developers, and localization teams after locale URL or CMS i18n changes.

Does it crawl every language version?

No. Return-tag checks are capped (depth/time limits) so the report stays fast and reliable.

What are the key features of Hreflang Checker?

Alternate inventory

Lists hreflang values and absolute href targets.

x-default check

Notes missing default locale fallback.

No LLM

Deterministic fetch/parse only.

Duplicate detection

Surfaces repeated hreflang values on one page.

Tag validation

Flags empty or invalid language/region tags.

Sampled return tags

Fetches a capped set of alternates for reciprocity.

How do you use Hreflang Checker?

Re-check after CMS deploy

Confirm reciprocity across a few key locales.

Paste a locale page URL

Use a public HTTPS URL that should declare alternates.

Review findings

Fix invalid tags, duplicates, missing x-default, and return gaps.

Why return tags matter

Each language URL should point back to the others. One-way hreflang sets confuse locale selection. This tool samples return tags so you can catch broken pairs without a full site crawl.

Scope

HTML link[rel=alternate][hreflang] plus capped alternate fetches. Sitemap-only hreflang maps are out of scope for v1.

Free · API · MCPToolYour platform

Use Hreflang Checker three ways

The free Hreflang Checker on this page works in your browser. The same workflow is available via REST API for apps and via the remote MCP server for Cursor, Claude, and other agents — one API key, one plan, one quota. This tool is part of the seo-apis module under Digital Tools.

  1. 1Create a free accountGet an API key for REST and MCP — 500 credits/month on the free tier.
  2. 2Connect or callPaste the MCP URL into Cursor/Claude, or call REST with X-Api-Key.
  3. 3Same key & creditsBrowser smoke-checks stay free; API-backed runs share one monthly credit quota.
  • Free in browserUse Hreflang Checker here — no account required.
  • REST APICall from your server with X-Api-Key.
  • Remote MCP serverSame job from Cursor or Claude via the ToolYour remote MCP server — one API key with REST.
Create free accountRemote MCP setupAPI referenceManage API keysPricing

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