SEO 工具
Hreflang 生成器 / 校验器
为多语言和多地区网站创建并校验 hreflang link 标签。生成器模式输出包含 x-default 的完整 `<link rel="alternate" hreflang="...">` 标签集,校验器模式检查现有标签的常见错误,如错误的语言代码(en-UK 而非 en-GB)、重复的 hreflang 值、缺少 x-default 声明,以及导致 Google 忽略整个 hreflang 集群的缺少自我引用标签问题。
主要用途
This tool both generates and validates hreflang annotations, which tell search engines that several URLs are language or regional variants of the same content so the right version is served to each audience. In generator mode you enter your pages and their language-region targets, and it outputs a complete, reciprocal set of link tags including the x-default fallback. In validator mode it inspects existing tags and flags the errors that quietly break hreflang clusters: invalid codes like en-UK instead of en-GB, duplicate values, a missing x-default, and absent self-referencing tags. Because hreflang must be reciprocal and precise, a single mistake can make Google ignore the entire set, so catching these issues before launch prevents the wrong-language pages from ranking in the wrong markets.
所在链路
This tool sits in the technical SEO setup stage, used when configuring or auditing international targeting across page variants.
核心功能
- Generator mode outputting a full reciprocal hreflang set with x-default
- Validator mode that audits existing tags for common faults
- Detection of invalid language-region codes such as en-UK
- Checks for missing x-default and self-referencing tags
- Flags duplicate hreflang values that break the cluster
适合谁用
- International SEOs launching multilingual or multi-regional sites
- Teams debugging why the wrong-language page ranks in a market
- Developers validating hreflang before a large rollout
新手提示
- Hreflang must be reciprocal: if page A points to B, B must point back to A, or Google ignores both.
- Use ISO codes correctly — it is en-GB, not en-UK — because invalid codes silently void the annotation.
- Always include an x-default tag for users whose language or region you do not explicitly target.