HTTP/2 Checker
Check whether HTTP/2 is enabled
Enter a URL or domain to check HTTP/2 support
Features
Instantly determine HTTP/2 support
Automatically determine support status just by entering a URL
Check up to 10 at once
Check multiple URLs in parallel together, separated by line breaks
Display the HTTP version
Also check the HTTP version used at connection
Block private IPs
Automatically block connections to internal hosts and local IPs
How to use
Enter a URL or domain
Enter the URL or domain you want to check; for multiple, separate by line breaks, up to 10
Check with the run button
Press the run button and the server connects to each URL and determines the support status
Check the support results
Check HTTP/2 support and the HTTP version for each URL in a list
Use cases
Checking site speedup
Check whether your site already supports HTTP/2 to grasp room for improving display speed
Verifying server settings
Confirm it is enabled after changing the settings of a web server or reverse proxy
Investigating competitor sites
Check the HTTP/2 adoption status of other sites to consider your own response policy
Pre-check before migration work
Compare protocol support before and after a server migration or CDN introduction
Safety and Privacy
Server-side processing
Processed temporarily on the server and discarded after the result is returned. Only the information needed for the lookup is sent.
Temporary processing only
For checking HTTP/2 support, temporary processing occurs on the server, then data is discarded after results are returned.
Communications encrypted with HTTPS
All sent and received data is encrypted by TLS and cannot be read by third parties.
No transmission to third parties
Input content is not sent to external services such as ad networks or trackers.
Connects only to the target URL
It only connects to the entered URLs or domains to check support.
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