Hey everyone! I'm working on a website where I want to add multi-language support. I'm trying to figure out the best method for SEO as well. I've been considering options like creating alternate pages (e.g., example.com/lang) but I'm not sure if that's the best route. I've noticed that some big sites like Facebook use parameters like "...com/?locale=en_US". I already have support for English and Hungarian, and I'm getting help from a friend for German and French translations. Any insights would be greatly appreciated!
5 Answers
Subdirectories and hreflang tags—that’s really the key. Don’t forget to self-reference your hreflang links!
In my experience, when building sites with multiple languages, it's essential to treat each one like its own site. Use separate paths for each language and implement the necessary hreflang tags to connect them. I’ve tried using query params like ?locale=hu, but I noticed much better SEO performance with distinct paths. It allows for tailored titles and structures for each language, which is beneficial. Utilizing tools like Search Console and keyword research can help refine your content further!
It's great that you're jumping into multi-language support! Honestly, I’d steer clear of using query parameters like ?locale=en_US if SEO is a concern. Search engines often treat those as duplicate content, which isn’t ideal. Instead, subdirectories like example.com/en/ and example.com/hu/ are the way to go—it's definitely the standard practice.
Make sure you implement hreflang tags and self-referencing canonical URLs in your . Hreflang tags help Google understand which version of a page corresponds to which language. As for canonical URLs, every translated page should reference its own URL, not the English version, to avoid de-indexing. Good luck!
If SEO matters, avoid language query params. Subdirectories like /en/, /de/, /hu/ usually work best. Plus, ensure you’re using proper hreflang tags. This setup makes it easier for both users and search engines to navigate your content.
I’ve worked with both methods, and query params can get pretty messy. Having separate paths for each language like /en, /de, etc., feels cleaner. Plus, it's easier to handle caching and routing that way. What tech stack are you using? Some frameworks can simplify the process.

Totally agree about subdirectories! Just wanted to add that you need to handle language detection carefully too. I made the mistake of auto-redirecting users based on their browser language, which confused many who preferred English. It’s better to provide a language picker for user control, and don’t forget the language attributes in your HTML for accessibility.