HTTP Status Code Checker
Check HTTP status codes, response headers, and redirect chains for any website. Supports batch checking of up to 50 URLs. See response time, security status, and server information instantly. No signup required.
How to Use HTTP Status Checker
- 1Choose "Single URL" mode for one website or "Batch Check" for up to 50 URLs.
- 2Enter your URL(s). You can use just the domain name (google.com) or include the protocol (https://google.com). Missing protocol defaults to HTTPS.
- 3Click "Check Status" (single) or "Check All URLs" (batch). The tool makes real HTTP requests to your website(s) and retrieves live data.
- 4Review results: status code, response time, redirect chain (if any), and response headers. For batch results, see a table with all URLs and their statuses.
HTTP Status Checker Features
The HTTP Status Checker provides comprehensive website diagnostics for developers, DevOps teams, and site owners.
Key Features
Status Code Detection
Instantly see the HTTP status code returned by any website. Codes are color-coded by category: green for success (2xx), blue for redirects (3xx), orange for client errors (4xx), red for server errors (5xx).
Redirect Chain Analysis
See the complete chain of redirects from initial URL to final destination. Identify unnecessary redirects that slow down your site. Each redirect shows the status code and next URL.
Response Headers Inspection
View important response headers: Content-Type, Content-Length, Server, Cache-Control, CORS headers, and more. Expand to see all 50+ headers returned by the server.
Response Time Measurement
Get precise millisecond response times for each request. Slow response times indicate server performance issues. Track performance improvements and monitor uptime.
Security Status Check
Immediately see if a website uses HTTPS (secure) or HTTP (insecure). HTTPS is essential for user trust and SEO rankings. Identify outdated sites still using HTTP.
Batch URL Checking
Check up to 50 URLs simultaneously. Paste a list of domains and get a summary table with status codes, response times, and categories. Perfect for monitoring multiple sites or auditing links.
Common Use Cases
Link Auditing
Developers audit links on their site to ensure none are broken (404 errors). Batch check all links in your footer, navigation, or blog to catch dead links before users do.
Redirect Optimization
After migrating domains or restructuring URLs, check redirect chains to ensure they're efficient. Too many hops slow down page load and hurt SEO. Identify and simplify redirect chains.
Performance Monitoring
Track response times for your site and competitors. Slow response times (300+ms) indicate server issues or poor hosting. Use this tool to debug performance before it impacts users.
API Endpoint Testing
Before integrating with an API, verify endpoints return correct status codes. Check that your API returns 200 for success, 404 for not found, and 500 for server errors as expected.
Frequently Asked Questions
What is an HTTP status code?
An HTTP status code is a three-digit number that a web server returns to describe the result of an HTTP request. Status codes are grouped by category: 2xx (success), 3xx (redirect), 4xx (client error), and 5xx (server error). For example, 200 OK means the request succeeded, while 404 Not Found means the resource doesn't exist.
What is a redirect chain and why does it matter?
A redirect chain occurs when a URL redirects to another URL, which redirects again, and so on. While a single redirect (301/302) is normal and acceptable, long redirect chains slow down page loading because the browser must make multiple round trips to the server before reaching the final destination. This impacts both user experience and SEO rankings. Ideal practice is to minimize redirects to one or two hops.
What do the different status code ranges mean?
2xx Success — The request succeeded (200 OK, 201 Created, 204 No Content). 3xx Redirect — The resource has moved (301 Permanent, 302 Temporary, 307 Temporary). 4xx Client Error — The request was invalid or the resource not found (400 Bad Request, 404 Not Found, 401 Unauthorized). 5xx Server Error — The server failed to fulfill the request (500 Internal Error, 502 Bad Gateway, 503 Unavailable).
Why do I need to check HTTP headers?
Response headers provide important information about how to handle the response: Content-Type tells you what kind of data is being sent (HTML, JSON, etc.), Cache-Control determines if/how long a response can be cached, Content-Length shows file size, Server identifies the web server software, and security headers like X-Frame-Options protect against attacks. Checking headers helps diagnose issues and verify security configuration.
What is HTTPS vs HTTP and why is it important?
HTTP is unencrypted, meaning data can be intercepted by attackers. HTTPS uses TLS encryption to protect data in transit. The lock icon in your browser indicates a secure HTTPS connection. For any site collecting personal data, passwords, or payments, HTTPS is essential. Even for public content, HTTPS is now recommended for SEO and user trust.
Can I check multiple websites at once?
Yes! Switch to "Batch Check" mode and paste up to 50 URLs (one per line). The tool will check all of them concurrently and show results in a table with status codes, response times, and categories. This is useful for monitoring multiple sites or checking a list of links for broken pages.
Why does my website return 302 instead of 301?
301 (Moved Permanently) tells search engines the content has permanently moved and they should update their index. 302 (Found) is temporary—the content may return. For permanent redirects (domain migrations, URL structure changes), use 301. For temporary changes, use 302 or 307. Using the wrong code can hurt SEO and confuse search engine crawlers.
What is a CORS header and why does my API return one?
CORS (Cross-Origin Resource Sharing) headers control which websites can access your API. The Access-Control-Allow-Origin header specifies which domains are permitted (e.g., * for all, or specific domains). APIs use CORS for security—without it, any website could access your API. Browsers enforce CORS, so even if your server allows it, the browser blocks requests without proper headers.