Question 1

What types of resources can I check?

Accepted Answer

You can check any URL: CDN-hosted scripts (jQuery, Bootstrap), web fonts (Google Fonts), API endpoints, image URLs, stylesheet links, or any other HTTP/HTTPS resource. The tool sends a real HTTP request and reports the result.

Question 2

What does "Available" vs "Unavailable" mean?

Accepted Answer

A resource is considered "Available" if it returns an HTTP status code in the 2xx (success) or 3xx (redirect) range. Status codes 4xx (client error) or 5xx (server error) are marked as "Unavailable". Connection failures are also marked as unavailable.

Question 3

Why is the response time different from my browser?

Accepted Answer

The response time shown is from our server, not your browser. It measures the time for our server to reach the resource. This gives you an objective measurement independent of your local network conditions, browser cache, or DNS cache.

Question 4

Can I check resources that require authentication?

Accepted Answer

This tool performs a simple GET request without authentication headers. Resources behind authentication (API keys, tokens, login) will likely return 401 or 403 status codes. For authenticated resource monitoring, sign up for a free account to configure custom headers.

Question 5

How is this different from the Availability Checker?

Accepted Answer

The Availability Checker tests a full website from multiple regions and analyzes all its external dependencies. The Resource Checker focuses on a single URL — use it for quick checks of individual CDN files, API endpoints, or third-party resources. Both support multi-region checks.

Resource Checker

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