Hreflang is one of the most error-prone technical SEO implementations on multilingual sites. Missing return tags, incorrect locale codes, and mismatched URLs between sitemap and HTML declarations are all common and all cause Google to ignore your hreflang signals entirely. When hreflang fails, the wrong language version ranks in the wrong country, users land on pages in a language they do not speak, and bounce rates spike.
Our hreflang service covers every stage: we audit your current implementation using Screaming Frog and Ahrefs to identify and categorize all errors, then provide a corrected implementation in whichever method your infrastructure supports (HTML head tags, HTTP headers for PDFs and non-HTML resources, or XML sitemap entries). We also configure per-country geo-targeting in Google Search Console and set up monitoring so new hreflang errors are caught before they affect rankings.