{"id":6034,"date":"2025-12-02T13:21:54","date_gmt":"2025-12-02T13:21:54","guid":{"rendered":"https:\/\/www.stanventures.com\/news\/?p=6034"},"modified":"2026-05-20T15:59:51","modified_gmt":"2026-05-20T10:29:51","slug":"tests-reveal-gaps-in-how-ai-tools-handle-multilingual-queries","status":"publish","type":"post","link":"https:\/\/www.stanventures.com\/news\/tests-reveal-gaps-in-how-ai-tools-handle-multilingual-queries-6034\/","title":{"rendered":"Tests Reveal Gaps in How AI Tools Handle Multilingual Queries"},"content":{"rendered":"<p><b>New multilingual SEO tests show that Google and Bing usually send users to the correct language version of a page, while several AI assistants still direct users to English links even when the query is written in French, Italian, or Spanish.<\/b><\/p>\n<p><span style=\"font-weight: 400;\">SEO expert Glenn Gabe recently ran a series of experiments to understand how search platforms treat translated content and <\/span><a href=\"https:\/\/www.stanventures.com\/news\/googles-take-on-hreflang-for-international-sites-449\/\"><span style=\"font-weight: 400;\">hreflang<\/span><\/a><span style=\"font-weight: 400;\">.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">His tests covered Google Search, Bing, AI Overviews, <\/span><a href=\"https:\/\/www.stanventures.com\/news\/google-expands-ai-overviews-and-introduces-ai-mode-2147\/\"><span style=\"font-weight: 400;\">AI Mode<\/span><\/a><span style=\"font-weight: 400;\">, ChatGPT, Perplexity, Claude, Copilot and Gemini using multilingual documentation from Google and Cloudflare.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">The aim was to see whether these tools deliver the matching page when content exists in several languages and the query is written in one of those languages. The results showed a clear difference. Classic search results are much more reliable. Several AI tools are not.<\/span><\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_85 counter-hierarchy ez-toc-counter ez-toc-transparent ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\"><\/p>\n<span class=\"ez-toc-title-toggle\"><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.stanventures.com\/news\/tests-reveal-gaps-in-how-ai-tools-handle-multilingual-queries-6034\/#google-and-bing-still-handle-multilingual-queries-with-strong-accuracy\" >Google and Bing Still Handle Multilingual Queries With Strong Accuracy<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.stanventures.com\/news\/tests-reveal-gaps-in-how-ai-tools-handle-multilingual-queries-6034\/#ai-chat-tools-show-a-different-pattern\" >AI Chat Tools Show a Different Pattern<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.stanventures.com\/news\/tests-reveal-gaps-in-how-ai-tools-handle-multilingual-queries-6034\/#copilot-and-gemini-perform-better-but-not-always\" >Copilot and Gemini Perform Better, but Not Always<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.stanventures.com\/news\/tests-reveal-gaps-in-how-ai-tools-handle-multilingual-queries-6034\/#a-cloudflare-outage-test-brings-the-issue-into-focus\" >A Cloudflare Outage Test Brings the Issue Into Focus<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.stanventures.com\/news\/tests-reveal-gaps-in-how-ai-tools-handle-multilingual-queries-6034\/#why-this-matters-for-multilingual-websites\" >Why This Matters for Multilingual Websites<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.stanventures.com\/news\/tests-reveal-gaps-in-how-ai-tools-handle-multilingual-queries-6034\/#what-multilingual-site-owners-can-do\" >What Multilingual Site Owners Can Do<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.stanventures.com\/news\/tests-reveal-gaps-in-how-ai-tools-handle-multilingual-queries-6034\/#key-takeaways\" >Key Takeaways<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"google-and-bing-still-handle-multilingual-queries-with-strong-accuracy\"><\/span><b>Google and Bing Still Handle Multilingual Queries With Strong Accuracy<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Gabe found that standard Google and Bing results consistently showed the correct version of pages.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">When he searched for French sitemap documentation, both engines surfaced the French URL.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Here are the screenshots:<\/span><\/p>\n<ul>\n<li aria-level=\"1\"><b>Google<\/b><\/li>\n<\/ul>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-6035 size-full\" src=\"https:\/\/www.stanventures.com\/news\/wp-content\/uploads\/2025\/12\/ai-search-hreflang-sitemap-10-blue-links.jpg\" alt=\"Ai Search Hreflang Sitemap Google Search\" width=\"720\" height=\"338\" srcset=\"https:\/\/www.stanventures.com\/news\/wp-content\/uploads\/2025\/12\/ai-search-hreflang-sitemap-10-blue-links.jpg 720w, https:\/\/www.stanventures.com\/news\/wp-content\/uploads\/2025\/12\/ai-search-hreflang-sitemap-10-blue-links-300x141.jpg 300w\" sizes=\"auto, (max-width: 720px) 100vw, 720px\" \/><\/p>\n<ul>\n<li aria-level=\"1\"><b>Bing<\/b><\/li>\n<\/ul>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-6037 size-full\" src=\"https:\/\/www.stanventures.com\/news\/wp-content\/uploads\/2025\/12\/ai-search-hreflang-sitemap-bing.jpg\" alt=\"Ai Search Hreflang Sitemap Bing\" width=\"720\" height=\"374\" srcset=\"https:\/\/www.stanventures.com\/news\/wp-content\/uploads\/2025\/12\/ai-search-hreflang-sitemap-bing.jpg 720w, https:\/\/www.stanventures.com\/news\/wp-content\/uploads\/2025\/12\/ai-search-hreflang-sitemap-bing-300x156.jpg 300w\" sizes=\"auto, (max-width: 720px) 100vw, 720px\" \/><\/p>\n<p><span style=\"font-weight: 400;\">Gabe&#8217;s Italian queries returned the right pages as well.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Google\u2019s newer features did not always match that consistency.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">AI Overviews sometimes served the local language version and sometimes didn\u2019t. AI Mode delivered steadier results and often highlighted the correct URL.<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"ai-chat-tools-show-a-different-pattern\"><\/span><b>AI Chat Tools Show a Different Pattern<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">The pattern changed once the tests moved into AI assistants. ChatGPT, Perplexity, and Claude often responded in the same language as the query but still placed English URLs in their answers.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">For the French sitemap test, ChatGPT replied in French and even referenced French videos, but the documentation link was English.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Perplexity showed similar behavior. Claude often held back links on the first response and then returned English URLs when asked for sources. These results were repeated in both French and Italian tests.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Gabe believes some of these platforms may not be using hreflang signals at all.<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"copilot-and-gemini-perform-better-but-not-always\"><\/span><b>Copilot and Gemini Perform Better, but Not Always<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Copilot produced some of the most accurate results among AI tools because it relies on Bing. It usually returned the correct language version in Gabe\u2019s testing.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Gemini was less predictable. It often answered without links and revealed the correct URL only when asked directly. In some cases links were shown as plain text. Results also changed depending on device and location.<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"a-cloudflare-outage-test-brings-the-issue-into-focus\"><\/span><b>A Cloudflare Outage Test Brings the Issue Into Focus<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Gabe also tested a Cloudflare blog post about an <\/span><a href=\"https:\/\/www.stanventures.com\/news\/cloudflare-outage-takes-x-and-many-sites-offline-5812\/\"><span style=\"font-weight: 400;\">18 November 2025 outage<\/span><\/a><span style=\"font-weight: 400;\"> that exists in multiple languages and uses hreflang.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Google and Bing both returned the Spanish version of the page when the search was in Spanish.\u00a0<\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-6038 size-full\" src=\"https:\/\/www.stanventures.com\/news\/wp-content\/uploads\/2025\/12\/ai-search-hreflang-cloudflare-10-blue-links.jpg\" alt=\"Ai Search Hreflang Cloudflare Google\" width=\"720\" height=\"502\" srcset=\"https:\/\/www.stanventures.com\/news\/wp-content\/uploads\/2025\/12\/ai-search-hreflang-cloudflare-10-blue-links.jpg 720w, https:\/\/www.stanventures.com\/news\/wp-content\/uploads\/2025\/12\/ai-search-hreflang-cloudflare-10-blue-links-300x209.jpg 300w\" sizes=\"auto, (max-width: 720px) 100vw, 720px\" \/><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-6036 size-full\" src=\"https:\/\/www.stanventures.com\/news\/wp-content\/uploads\/2025\/12\/ai-search-hreflang-cloudflare-bing.jpg\" alt=\"Ai Search Hreflang Cloudflare Bing\" width=\"720\" height=\"438\" srcset=\"https:\/\/www.stanventures.com\/news\/wp-content\/uploads\/2025\/12\/ai-search-hreflang-cloudflare-bing.jpg 720w, https:\/\/www.stanventures.com\/news\/wp-content\/uploads\/2025\/12\/ai-search-hreflang-cloudflare-bing-300x183.jpg 300w\" sizes=\"auto, (max-width: 720px) 100vw, 720px\" \/><\/p>\n<p><span style=\"font-weight: 400;\">AI Overviews didn\u2019t appear for the query. AI Mode surfaced both Spanish and English URLs. ChatGPT did the same.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Perplexity and Claude returned the English page.\u00a0<\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-6039 size-full\" src=\"https:\/\/www.stanventures.com\/news\/wp-content\/uploads\/2025\/12\/ai-search-hreflang-cloudflare-perplexity.jpg\" alt=\"Ai Search Hreflang Cloudflare Perplexity\" width=\"720\" height=\"546\" srcset=\"https:\/\/www.stanventures.com\/news\/wp-content\/uploads\/2025\/12\/ai-search-hreflang-cloudflare-perplexity.jpg 720w, https:\/\/www.stanventures.com\/news\/wp-content\/uploads\/2025\/12\/ai-search-hreflang-cloudflare-perplexity-300x228.jpg 300w\" sizes=\"auto, (max-width: 720px) 100vw, 720px\" \/><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-6040 size-full\" src=\"https:\/\/www.stanventures.com\/news\/wp-content\/uploads\/2025\/12\/ai-search-hreflang-cloudflare-claude.jpg\" alt=\"Ai Search Hreflang Cloudflare Claude\" width=\"720\" height=\"800\" srcset=\"https:\/\/www.stanventures.com\/news\/wp-content\/uploads\/2025\/12\/ai-search-hreflang-cloudflare-claude.jpg 720w, https:\/\/www.stanventures.com\/news\/wp-content\/uploads\/2025\/12\/ai-search-hreflang-cloudflare-claude-270x300.jpg 270w\" sizes=\"auto, (max-width: 720px) 100vw, 720px\" \/><\/p>\n<p><span style=\"font-weight: 400;\">Copilot picked the Spanish version again. Gemini first produced an English URL and then switched to the Spanish version when the test was done from Spain using the Gemini app.<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"why-this-matters-for-multilingual-websites\"><\/span><b>Why This Matters for Multilingual Websites<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">When traffic arrives at the wrong language version, users may leave too quickly or struggle to find what they need.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">It also creates challenges for publishers who rely on international search performance, since hreflang and localization are meant to protect the value of translated content and international visibility.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">This affects rankings and the value of work done through <\/span><a href=\"https:\/\/www.stanventures.com\/powerful-link-building-service\/\"><span style=\"font-weight: 400;\">link building<\/span><\/a><span style=\"font-weight: 400;\"> and content localization.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Even though AI systems continue to evolve and results differ by location and time, Gabe\u2019s testing shows that these inconsistencies are still common among AI search tools.<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"what-multilingual-site-owners-can-do\"><\/span><b>What Multilingual Site Owners Can Do<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Here are a few steps for teams working on international visibility.<\/span><\/p>\n<ol>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Audit hreflang setup and fix technical problems. Many organizations rely on a <\/span><a href=\"https:\/\/www.stanventures.com\/managed-seo-services\/\"><span style=\"font-weight: 400;\">professional SEO service<\/span><\/a><span style=\"font-weight: 400;\"> for large-scale audits and <\/span><a href=\"https:\/\/www.stanventures.com\/blog\/international-seo\/\"><span style=\"font-weight: 400;\">international optimization<\/span><\/a><span style=\"font-weight: 400;\">.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Search for your content across different countries and languages and compare results in multiple AI tools.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Use tools that measure <\/span><a href=\"https:\/\/www.stanventures.com\/news\/why-brand-mentions-citations-are-the-key-to-ai-search-visibility-4127\/\"><span style=\"font-weight: 400;\">AI visibility<\/span><\/a><span style=\"font-weight: 400;\"> to track how pages are referenced over time.<\/span><\/li>\n<li aria-level=\"1\">Agencies running <a href=\"https:\/\/www.stanventures.com\/white-label-link-building-agency\/\">white label link building<\/a> programs for international clients should add AI visibility checks to their reporting \u2014 a page that ranks and earns links still needs to surface in the right language when AI tools cite it.<\/li>\n<\/ol>\n<p><span style=\"font-weight: 400;\">He also recommends ongoing monitoring as AI tools continue improving multilingual behavior.<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"key-takeaways\"><\/span><b>Key Takeaways<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Google and Bing generally show the correct language version when hreflang is in place.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">AI Overviews and AI Mode often get it right, but not always.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">ChatGPT, Perplexity, and Claude frequently reply in a different language but still link to English sources.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Copilot and Gemini perform better, though sources often appear only when requested.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Multilingual publishers should actively test and monitor how AI tools cite their translated pages.<\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>New multilingual SEO tests show that Google and Bing usually send users to the correct language version of a page, while several AI assistants still direct users to English links even when the query is written in French, Italian, or Spanish. SEO expert Glenn Gabe recently ran a series of experiments to understand how search [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":6035,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-6034","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-seo"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Tests Reveal Gaps in How AI Tools Handle Multilingual Queries - Stan Ventures<\/title>\n<meta name=\"description\" content=\"Tests show AI search tools often link to English pages even for multilingual queries, highlighting gaps for global SEO and hreflang optimization.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.stanventures.com\/news\/tests-reveal-gaps-in-how-ai-tools-handle-multilingual-queries-6034\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Tests Reveal Gaps in How AI Tools Handle Multilingual Queries - 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