Hreflang Migration Validator

Audit destination pages after a migration: extract and check every resource and link reference, flag old-domain references, broken URLs, redirects, mixed content, and missing references.

Validate hreflang implementation (<link rel="alternate" hreflang=...>) to prevent international SEO issues. Detects missing/duplicate hreflangs, invalid language-region codes, missing self reference, and optional reciprocal hreflang checks.

Canonical Hreflang Auditor

junipr/canonical-hreflang-auditor

Audit canonical and hreflang relationships, reciprocal tags, conflicts, and international SEO risks.

Hreflang Tag Checker API | SEO Validator

andok/hreflang-checker

Bulk validate website hreflang tags for international SEO. Audit multi-language sites for missing x-default tags, bidirectional errors, and ISO code compliance.

Audit a public page's hreflang alternate tags in one API call. Reports x-default, duplicate and invalid values, self-reference, score, and recommendations for international SEO QA.

Canonical & Hreflang SEO Auditor

glowing_glove/canonical-hreflang-auditor

Audit canonical URLs, hreflang annotations, duplicate language targets, and international SEO signals.

Hreflang Tags Extractor

benthepythondev/hreflang-tags-extractor

Extract hreflang alternate tags from international SEO pages.

Site Migration Redirect QA

checksmithcats/site-migration-redirect-qa

Check submitted old-to-new URL mappings before or after a site migration. Reports redirect status, final URL, chain length, loops, missing redirects, and target mismatches.

Redirect Migration Auditor

junipr/redirect-migration-auditor

Validate old-to-new URL redirects, migration maps, chains, loops, and incorrect destination patterns.

Extract and validate hreflang tags from web pages for international SEO audits and monitoring.