What you’ll need
A public URL and up to three Accept-Language values.
SEO TOOL · FREE TO USE
Language Response Comparison
Compare responses to different language preferences.
Free to use · No saved inputs01International SEO workspace
- 1 Add your input
- 2 Run the tool
- 3 Get your results
A public URL and up to three Accept-Language values. New here? Start with “Try an example”.
What this result can tell you
Compares language preferences from one server location, twice per setting. It does not test visitors from other countries. Changing text or failed requests are marked inconclusive.
More settings (optional)
The URL and chosen crawler/language settings reach our inspection server, which contacts the target website. No login pages, credentials or private-network addresses are supported. Inputs and results are not stored.
Public target inspection · No paid API
How it works
Request each setting twice and compare redirects, language headers, HTML language and hashes. Changing text or failed responses stay inconclusive.
Know the limits
No proxy countries are simulated. Geographic IP testing requires actual regional infrastructure.
GET FROM A QUESTION TO A NEXT STEP
See what an Accept-Language change actually changes
A page may redirect or change its content when a visitor sends a different language preference. This language response comparison helps investigate that behavior using explicit Accept-Language headers. Use it when a language selector behaves unexpectedly or a visitor reaches the wrong language version. It tests language-dependent delivery; it does not move the inspection server into another country.
How to use Language Response Comparison
Enter a public URL and up to three language preferences. Choose settings relevant to the language behavior you are trying to reproduce.
Run the comparison. Each setting is requested more than once so unstable responses can be distinguished from a consistent language-related difference.
Review destination URLs, language headers, HTML language and extracted content. Share reproducible differences with the team managing redirects or localization.
What do the results mean?
A stable difference can indicate that the language header affects the response. Changing content between repeated baseline requests makes attribution less certain. Different page hashes alone do not prove translated content, and blocked or failed requests should not be interpreted as successful language tests.
What to do next
Inspect hreflang annotations separately, and use a real regional testing service when the behavior depends on the visitor’s IP country.
Keep the scope in mind
No proxy countries are simulated. Geographic IP testing requires actual regional infrastructure.
Common questions about Language Response Comparison
Does this simulate a visitor in another country?
No. There are no country proxies in this tool. It changes the request’s language preferences, which are different from IP location, browser history or a logged-in profile.
Why can the result be inconclusive?
A page may change between identical requests, return an error or redirect inconsistently. Those observations do not support a confident claim that language preference caused the difference.