HTTP Lookup

HTTP Lookup Tool: Check HTTP Headers, Status Codes & Redirects Online

Analyze HTTP responses instantly with HasheTools. Our HTTP Lookup Tool lets you check website headers, status codes, redirects, and caching in one click. Diagnose website issues, verify server configurations, and optimize performance for SEO and security.

The HasheTools HTTP Lookup tool allows you to analyze and inspect HTTP headers from any website or server. By sending an HTTP request, it instantly retrieves detailed response headers, helping you understand your site’s configuration, redirects, caching, and security setup.

Whether you’re a developer, webmaster, or SEO specialist, this tool helps you debug response issues, detect redirects, and ensure your web pages deliver optimal performance.

What Is HTTP?

HTTP (Hypertext Transfer Protocol) is the foundation of web communication; it governs how browsers and servers exchange data.

Each time you visit a website, your browser sends an HTTP request and receives an HTTP response containing the requested content and metadata.

By inspecting these headers, you can uncover crucial insights into your website’s setup, status, and delivery.

How the HTTP Lookup Tool Works

1. Enter a valid URL (e.g., https://example.com) in the input field.
2. Click “Lookup HTTP” to send a request to the server.
3. Instantly view complete HTTP response headers and status codes.
4. Analyze redirects, server types, cache settings, compression, and security headers.

Key Features of HasheTools HTTP Lookup

Check HTTP Status Codes: Instantly verify if your site responds with 200 OK, 301 redirect, or 404 errors.
Inspect Redirect Chains: Track multiple redirects and identify HTTPS or canonical issues.
View HTTP Response Headers: See content type, cache-control, server software, and compression details.
Test Multiple URLs: Analyze several URLs in one session for quick diagnostics.
Measure Response Time: Identify latency issues and optimize server performance.
Export Results: Save your analysis as CSV for deeper offline evaluation.
Debug SEO Issues: Detect redirects, missing cache headers, or slow responses that affect rankings.

Common HTTP Response Headers Explained

• Content-Type: Specifies the format of the response (e.g., text/html, application/json).
• Server: Identifies the web server software (e.g., Nginx, Apache, Cloudflare).
• Cache-Control: Defines how long browsers should cache content.
• Location: Indicates redirect destinations (for 3xx status codes).
• Date: Shows when the response was generated by the server.
• Content-Encoding: Reveals compression settings such as gzip or br.

Why Use HTTP Lookup?

Check Website Accessibility: Ensure your site responds correctly and is online.
Debug Redirects: Find unwanted or broken redirect chains.
Verify HTTPS & Canonical Redirects: Ensure consistency between www and non-www versions.
Improve SEO Performance: Optimize caching, compression, and response time.
Enhance Security: Identify missing or weak headers like Strict-Transport-Security or Content-Security-Policy.

Example: HTTP Header Response

HTTP/1.1 200 OK

Date: Fri, 07 Nov 2025 12:00:00 GMT

Server: nginx

Content-Type: text/html; charset=UTF-8

Cache-Control: max-age=3600

Content-Encoding: gzip

This example shows a healthy HTTP 200 response, with caching and compression enabled, ideal for performance and SEO.

Use Cases

• Check if your website is live and responding properly
• Debug redirect loops or SSL misconfigurations
• Verify canonical and HTTPS redirects for SEO
• Analyze response time for performance optimization
• Review security headers before deployment

Start Your HTTP Analysis Now

The HTTP Lookup Tool by HasheTools is your go-to solution for analyzing website headers, redirects, and response codes. Whether you’re debugging errors, checking SEO redirects, or optimizing site speed, this tool provides all the insights you need, instantly and for free.

Start analyzing your HTTP headers now, and keep your website fast, secure, and SEO-ready!