Validate a page's hreflang set — codes, x-default, self-reference — and confirm every alternate links back.
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hreflang tags tell Google which language or country version of a page to show each searcher — Arabic visitors get /ar/, UK visitors get /en-gb/. If they're broken, the wrong version ranks, or Google ignores them entirely.
Nuqti reads hreflang from the HTML and HTTP headers, validates every language-region code, checks for x-default and a self-reference, then opens each alternate page to confirm it links back (Google ignores one-way hreflang).
If page A lists B as an alternate, B must list A too. Without the return link Google ignores the pair.
Recommended: it tells Google which page to show users whose language you don't target — usually a language selector or the main version.
No — the region code for the United Kingdom is GB, so use en-GB. Language codes are ISO 639-1, regions ISO 3166-1.
Yes. Each alternate must be the canonical, indexable 200 version of that page.
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