HTTP2.Pro

API

Test HTTP/2 protocol support for clients and servers via API endpoints

Overview

HTTP2.Pro API provides endpoints to validate HTTP/2 protocol compatibility for both clients and servers. Core endpoints include checking if a target server accepts HTTP/2 connections, verifying client-side HTTP/2 capability, and retrieving detailed protocol negotiation metrics. Responses are JSON-formatted, containing status indicators, protocol version details, and connection metadata. Ideal for developers testing server configurations, debugging client HTTP/2 implementations, or ensuring applications handle HTTP/2 correctly in production environments.

Example Integration (JavaScript)

script.js JS


fetch('https://http2.pro/doc/api')
  .then(res => res.json())
  .then(data => console.log(data))
  .catch(err => console.error(err));

Key Features

RESTful endpoints
JSON response format
No authentication required
HTTP/2 protocol validation
Server and client support checks

Frequently Asked Questions

? Is HTTP2.Pro API free to use?

Yes, the HTTP2.Pro API is free for testing HTTP/2 protocol support for clients and servers.

? Does it require an API Key?

No, the HTTP2.Pro API does not require an API key for access to its core testing endpoints.

? What is the response format?

All responses from the HTTP2.Pro API are in JSON format, containing structured data about protocol support status and connection details.

Top Alternatives

KeyCDN HTTP/2 Test API Search Google

Tool Info

Pricing Free

Category Development

Platform Public API

Pros

⊕ Simple integration (no API key needed)
⊕ Detailed HTTP/2 protocol insights
⊕ Supports both client and server testing
⊕ Fast response times for validation checks

Cons

⊖ Rate limits may apply for free usage
⊖ Limited advanced protocol testing options
⊖ No official service level agreement (SLA)