Website HTTP/2 Detection

Tool Introduction

This tool is a free online website HTTP/2 detection tool, designed to help users quickly check whether a target website has been upgraded and supports the HTTP/2 protocol. HTTP/2, as a new generation network transmission protocol, significantly improves website loading speed and user experience, and optimizes SEO through technologies such as multiplexing, server push, and header compression. By entering the website URL, you can immediately get its HTTP/2 support status and understand the website's performance optimization potential.

How to Use

1. In the input box, paste or enter the complete URL address of the website you want to detect, for example: https://www.google.com.
2. Click the "Detect" button, and the tool will immediately send a request and analyze the website's protocol support.
3. Wait a moment, and the detection result will be displayed on the page, informing you whether the website supports the HTTP/2 protocol.

Input parameter format: Please provide a complete and valid website URL, including the protocol header (e.g., http:// or https://).

Output result format: The result will clearly show whether the target website supports the HTTP/2 protocol, and may include the specific HTTP protocol version currently used for the connection, such as "Supports HTTP/2 protocol" or "Current protocol version: HTTP/1.1".

Frequently Asked Questions

• Q: What are the advantages of the HTTP/2 protocol, and how does it affect website performance?
• A: HTTP/2 significantly improves website loading speed and resource utilization efficiency, reduces network latency, and thus enhances user experience and overall website performance through technologies such as multiplexing, header compression, server push, and request prioritization.
• Q: Why does my website detection result show that it does not support HTTP/2?
• A: This usually means that your website server has not yet been configured or enabled for the HTTP/2 protocol. You may need to contact your hosting service provider or website administrator for configuration upgrades. Please note that most HTTP/2 implementations require an HTTPS (SSL/TLS encrypted) connection to work, so ensuring your website has HTTPS deployed is one of the prerequisites for HTTP/2 support.
• Q: How does this tool determine whether a website supports HTTP/2?
• A: This tool determines whether a website supports HTTP/2 by sending a request to the target website and analyzing the protocol header information in the server's response. If the server declares support for HTTP/2 in the response (e.g., through ALPN protocol negotiation), it is determined to be supported.
• Q: Does this tool support HTTP or HTTPS protocol detection?
• A: This tool supports both HTTP and HTTPS protocol website detection. Since mainstream browsers and servers usually only enable HTTP/2 over HTTPS connections, it is recommended to detect HTTPS links to get more accurate HTTP/2 support results.

Notes

• Please ensure that the URL address you enter is complete and valid, including the http:// or https:// prefix, to avoid detection failure due to incorrect URLs.
• The detection results of this tool are based on instant network connection status and server response. If your website is behind a CDN or proxy, the results may reflect the CDN/proxy's protocol support, not the origin server.
• Most modern browsers only support HTTP/2 over encrypted connections (HTTPS). Therefore, it is strongly recommended to detect the HTTPS version of your website to get best practice results and improve user access security.
• The detection results are for reference only. For specific configuration and website performance optimization, please consult your website technical personnel or service provider.