Server Status Checker

HTTP Status Checker – Check HTTP Response Codes Online

Use the WaooTools HTTP Status Checker to check the HTTP response returned by a public URL. Enter a complete URL to see whether the requested page is responding successfully, redirecting to another location, unavailable, or returning a client or server error.

HTTP status codes provide useful information about how a web server handled a request. They can help website owners, developers, SEO professionals, and marketers troubleshoot redirects, broken URLs, unavailable pages, server errors, and other website response issues.

What Is an HTTP Status Code?

An HTTP status code is a three-digit response sent by a web server after receiving a request from a client, such as a web browser, crawler, application, or other HTTP client.

These codes provide information about what happened when the server processed the request.

HTTP status codes are generally divided into five groups:

• 1xx – Informational responses
• 2xx – Successful responses
• 3xx – Redirections
• 4xx – Client or request errors
• 5xx – Server errors

Checking the status code of a URL can provide a quick indication of how that URL is responding at the time of the test.

Check HTTP Status of a URL

The WaooTools HTTP Status Checker allows you to test a publicly accessible URL and inspect the response observed by the checking system.

You can use it to investigate whether a URL is:

• Returning a successful response
• Redirecting to another URL
• Returning a not-found error
• Temporarily unavailable
• Returning a server-side error
• Responding differently than expected

This can be particularly useful when troubleshooting websites, redirects, broken pages, and technical SEO issues.

How to Check an HTTP Status Code

Checking a URL's HTTP status with WaooTools is simple:

1. Enter the complete public URL you want to check.
2. Start the HTTP status check.
3. Wait for the request to be processed.
4. Review the HTTP response returned by the checking system.
5. Investigate the URL further if the response is unexpected.

For accurate testing, make sure you enter the correct URL, including the appropriate http:// or https:// protocol.

2xx HTTP Status Codes – Successful Responses

The 2xx status code group generally indicates that the request was successfully received and processed.

200 OK

200 OK is one of the most common successful HTTP responses.

It generally means that the server successfully processed the request and returned the requested resource.

For a normal publicly accessible webpage, a 200 response is commonly expected when the page is available directly at the requested URL.

Other 2xx responses can indicate different types of successful operations depending on how the server and application are configured.

3xx HTTP Status Codes – Redirects

The 3xx status code group is used for redirects and other situations where the client may need to take additional action to complete the request.

Common redirect responses include:

• 301 Moved Permanently
• 302 Found
• 303 See Other
• 307 Temporary Redirect
• 308 Permanent Redirect

Redirects are common when websites change URLs, move pages, switch domains, redirect HTTP to HTTPS, or consolidate duplicate URLs.

301 Redirect

A 301 redirect generally indicates that a resource has been permanently moved to another URL.

301 redirects are commonly used when:

• A page URL has changed
• A website has moved to a new domain
• HTTP traffic is redirected to HTTPS
• Old URLs are replaced by new URLs
• Multiple URL versions are consolidated

Incorrect or unnecessary redirects can create navigation and SEO problems, so important redirects should be reviewed carefully.

302 Redirect

A 302 redirect generally indicates a temporary redirection.

It can be useful when a resource is temporarily available at another location, although the appropriate redirect type depends on the intended behavior and implementation.

Redirect Chains and Redirect Loops

A URL may redirect through one or more additional URLs before reaching its final destination.

A redirect chain occurs when one URL redirects to another URL that then redirects again.

For example:

URL A → URL B → URL C

Long redirect chains can increase request overhead and make troubleshooting more difficult.

A redirect loop occurs when URLs continually redirect between each other without reaching a final page.

For example:

URL A → URL B → URL A

If a page does not load because of repeated redirects, inspect the website's redirect rules, server configuration, CMS settings, plugins, or application logic.

4xx HTTP Status Codes – Client and Request Errors

The 4xx status code group generally indicates that the server could not fulfill the request because of an issue related to the request or requested resource.

Common 4xx responses include:

• 400 Bad Request
• 401 Unauthorized
• 403 Forbidden
• 404 Not Found
• 405 Method Not Allowed
• 408 Request Timeout
• 429 Too Many Requests

404 Not Found

A 404 Not Found response generally means that the requested resource could not be found at the requested URL.

404 errors can occur when:

• A page has been deleted
• A URL was entered incorrectly
• A page was moved without a redirect
• A link points to an outdated location
• A website structure has changed

Website owners should review important 404 pages and determine whether the URL should remain unavailable, be restored, or redirect to a relevant replacement page.

403 Forbidden

A 403 Forbidden response generally indicates that the server understood the request but is refusing to allow access to the requested resource.

Possible causes can include access rules, server configuration, security systems, permissions, or bot protection.

429 Too Many Requests

A 429 Too Many Requests response generally indicates that the server or an intermediary has received too many requests within a particular period.

Rate limiting, API restrictions, security systems, and automated traffic controls can cause this response.

5xx HTTP Status Codes – Server Errors

The 5xx status code group generally indicates that the server encountered a problem while attempting to fulfill the request.

Common 5xx responses include:

• 500 Internal Server Error
• 501 Not Implemented
• 502 Bad Gateway
• 503 Service Unavailable
• 504 Gateway Timeout

500 Internal Server Error

A 500 Internal Server Error generally indicates that the server encountered an unexpected condition that prevented it from completing the request.

Possible causes can include:

• Application errors
• Server configuration problems
• Plugin or extension conflicts
• Programming errors
• Resource limitations
• Database problems

Website owners should review server and application logs when investigating repeated 500 responses.

502 Bad Gateway

A 502 Bad Gateway response can occur when a server acting as a gateway or proxy receives an invalid response from an upstream server.

This can sometimes involve reverse proxies, load balancers, hosting infrastructure, or application servers.

503 Service Unavailable

A 503 Service Unavailable response generally indicates that the server is temporarily unable to handle the request.

Possible causes include maintenance, overloaded resources, application problems, or temporary service interruptions.

504 Gateway Timeout

A 504 Gateway Timeout response can occur when a gateway or proxy does not receive a timely response from an upstream server.

Repeated 504 errors may require investigation of hosting resources, application processing, databases, network connectivity, or upstream services.

HTTP Status Codes and SEO

HTTP status codes are an important part of technical website analysis.

Search engines and other automated systems use HTTP responses to understand how URLs behave. Incorrect status codes, broken pages, redirect problems, and persistent server errors can create technical issues that should be investigated.

For SEO troubleshooting, it can be useful to check important URLs such as:

• Homepage
• Category pages
• Product pages
• Service pages
• Blog posts
• Landing pages
• XML sitemap URLs
• Canonical URLs
• Redirect destinations

An HTTP status checker can provide a quick starting point for identifying unexpected responses.

A status code alone, however, does not determine a page's search ranking or overall SEO performance. It should be considered alongside content, indexing, crawlability, redirects, canonicalization, site architecture, and other technical SEO factors.

HTTP Status Codes and Website Troubleshooting

HTTP response codes can help narrow down the source of a website problem.

For example:

200 response: The requested resource is responding successfully.

301 or 308 response: The URL is permanently redirecting and the destination should be reviewed.

302 or 307 response: The URL is temporarily redirecting and the intended behavior should be confirmed.

404 response: The requested resource may be missing or the URL may be incorrect.

403 response: Access may be restricted by permissions or security rules.

429 response: The request may be affected by rate limiting.

500 response: The website application or server may have encountered an internal error.

502/504 response: An upstream server, gateway, proxy, or hosting component may be involved.

These are general interpretations, and the actual cause should be investigated within the environment controlling the website.

HTTP Status Checker for Redirect Testing

Redirect testing is a common reason to check a URL's HTTP response.

Website owners can use the tool to review URLs after:

• Changing a page URL
• Migrating a website
• Moving from HTTP to HTTPS
• Changing domains
• Updating website structure
• Removing old pages
• Implementing redirect rules
• Migrating from one CMS to another

Checking the response can help confirm whether a URL is reaching the expected destination.

HTTP Status Checker for Website Migrations

Website migrations can involve hundreds or thousands of URLs.

After moving a website, changing domains, restructuring URLs, or switching platforms, unexpected HTTP responses can indicate that certain pages or redirects need attention.

Checking representative URLs can help identify issues such as missing pages, incorrect redirects, redirect chains, or unexpected server errors.

For large websites, automated crawling and server-log analysis may provide more comprehensive coverage than manually checking individual URLs.

HTTP Status vs. Website Availability

An HTTP status check is a useful diagnostic signal, but it is not a guarantee that every visitor can access the page successfully.

A website may behave differently depending on:

• Geographic location
• IP address
• Browser
• Cookies
• Authentication
• User agent
• Network conditions
• CDN configuration
• Firewall rules
• Bot protection
• Rate limiting
• Server load

A URL that returns a successful response during one test may produce a different result under different conditions.

Why HTTP Status Results Can Change

The result from an HTTP status checker represents the response observed at the time of the request.

Temporary network problems, server load, maintenance, rate limits, CDN behavior, geographic restrictions, security systems, and bot protection can affect the response.

For this reason, an unexpected result should generally be tested again and compared with the behavior observed from the authoritative website environment.

What to Do When a URL Returns an Unexpected Status

If a URL is returning an HTTP status that you did not expect, start by confirming that the URL is correct.

Depending on the response, you may then:

• Open the URL directly in a browser
• Check the redirect destination
• Review redirect rules
• Inspect server configuration
• Review application logs
• Check hosting resources
• Review CDN or firewall settings
• Check security and bot-protection rules
• Test the URL again
• Compare the result from your own hosting environment

If the issue continues, the website administrator or hosting provider may need to investigate the server and application environment.

HTTP Status Checker for Developers and SEO Professionals

The WaooTools HTTP Status Checker can be useful for developers, SEO professionals, website owners, agencies, and marketers who need a quick way to inspect the response returned by a public URL.

It can help during website maintenance, technical SEO checks, redirect testing, migration projects, debugging, and routine website monitoring.

For more advanced diagnostics, HTTP status results can be combined with server logs, browser developer tools, crawler data, DNS information, SSL checks, and other technical website analysis methods.

Public URL Requirements

The HTTP Status Checker is intended for publicly accessible URLs.

The requested resource may not return the same result if it requires:

• Login credentials
• Authentication
• Private network access
• Special authorization headers
• Restricted permissions
• An interactive browser session
• Other access controls

Do not use the tool to bypass authentication, security controls, access restrictions, or other protections.

A Status Check Is a Snapshot

The result returned by WaooTools represents the HTTP response observed during the specific check.

It should be treated as a snapshot rather than a permanent statement about the availability of a website.

Temporary outages, network conditions, server load, rate limiting, geographic restrictions, CDN behavior, and security systems can cause different results at different times or from different environments.

Check HTTP Status with WaooTools

Need to know how a public URL is responding?

Enter the URL into the WaooTools HTTP Status Checker to inspect its HTTP response and identify successful responses, redirects, client errors, or server errors.

Use the result as a starting point for troubleshooting website availability, redirect behavior, technical SEO issues, broken URLs, and server-side problems.