What does a 200 HTTP status code mean?

HTTP 200 OK means the server successfully processed the request and returned the expected response. For most URLs, 200 is what you expect for a working page or API endpoint.

What is the difference between a 301 and 302 redirect?

A 301 is a permanent redirect — browsers and search engines cache the destination URL. A 302 is a temporary redirect — the original URL is still the canonical one. Use 301 for permanent URL changes.

What does a 503 Service Unavailable mean?

HTTP 503 means the server is temporarily unable to handle the request — usually due to overload, maintenance, or a deployment in progress. It is typically a temporary condition.

If a site shows "up" here but looks broken in a browser, why?

The status checker only tests whether the server responds with a valid HTTP status code. A page can return 200 but still have JavaScript errors, broken assets, or broken functionality. A 200 does not guarantee correct page content.

Can I check an internal or localhost URL?

No. The tool sends requests from the DevTool House server, so only publicly accessible URLs can be checked. Internal network addresses, localhost, and private IP URLs are not reachable from an external server.

Website Status Checker — Check if a Website Is Up or Down

DevTool House

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website status checker

About Website Status Checker

Test whether a website or URL is reachable and check its HTTP response code, redirect chain, and response time — for single or bulk URL checks.

Last reviewed

June 23, 2026

Key Features

Checks single or multiple URLs for HTTP status
Returns HTTP status codes (200, 301, 404, 500, etc.)
Shows response time for each URL
Follows redirects and reports the final destination URL
Useful for uptime checks and deployment verification

How to Use Website Status Checker

1Enter one URL or a list of URLs to check.
2Run the status check.
3Review the HTTP status code, response time, and redirect chain for each URL.
4Use the results to confirm a site is live, diagnose errors, or verify redirects.

Post-deployment verification example

After deploying a web application, run the key URLs through the status checker to confirm they return 200, that redirects from old paths work correctly, and that response times are acceptable.

How It Works

The tool sends an HTTP request to each URL through the DevTool House API service and returns the status code, response time, and redirect chain.

Privacy Notes

Requests are sent from the DevTool House API service to the target URLs. Only check publicly accessible URLs. Do not check internal or authenticated endpoints.

Limitations

The tool checks server reachability and HTTP status. It does not check JavaScript rendering, page content, or application functionality. A 200 status means the server responded — not that the page is working correctly.

Frequently Asked Questions

website status checker

About Website Status Checker

Test whether a website or URL is reachable and check its HTTP response code, redirect chain, and response time — for single or bulk URL checks.

Last reviewed

June 23, 2026

Key Features

Checks single or multiple URLs for HTTP status
Returns HTTP status codes (200, 301, 404, 500, etc.)
Shows response time for each URL
Follows redirects and reports the final destination URL
Useful for uptime checks and deployment verification

How to Use Website Status Checker

1Enter one URL or a list of URLs to check.
2Run the status check.
3Review the HTTP status code, response time, and redirect chain for each URL.
4Use the results to confirm a site is live, diagnose errors, or verify redirects.

Post-deployment verification example

After deploying a web application, run the key URLs through the status checker to confirm they return 200, that redirects from old paths work correctly, and that response times are acceptable.

How It Works

The tool sends an HTTP request to each URL through the DevTool House API service and returns the status code, response time, and redirect chain.

Privacy Notes

Requests are sent from the DevTool House API service to the target URLs. Only check publicly accessible URLs. Do not check internal or authenticated endpoints.

Website Status Checker

About Website Status Checker

Key Features

How to Use Website Status Checker

Post-deployment verification example

How It Works

Privacy Notes

Limitations

Frequently Asked Questions

1What does a 200 HTTP status code mean?

2What is the difference between a 301 and 302 redirect?

3What does a 503 Service Unavailable mean?

4If a site shows "up" here but looks broken in a browser, why?

5Can I check an internal or localhost URL?

Website Status Checker

About Website Status Checker

Key Features

How to Use Website Status Checker

Post-deployment verification example

How It Works

Privacy Notes

Limitations

Frequently Asked Questions

1What does a 200 HTTP status code mean?

2What is the difference between a 301 and 302 redirect?

3What does a 503 Service Unavailable mean?

4If a site shows "up" here but looks broken in a browser, why?

5Can I check an internal or localhost URL?