Letrago

Check HTTP headers and redirects

Enter a domain or a URL to see every redirect, the status code and the response headers.

✓ Free, no sign-up

How it works

We follow the URL step by step, without letting it redirect on its own, to show every hop: http to https, non-www to www, and so on. If you enter just the domain we start with http:// to check it redirects to https. We also review the security headers browsers recommend.

How to use it, step by step

  1. Enter the site's address.
  2. We make the request like a browser and follow redirects one by one.
  3. You'll see every hop, the status code and the security headers.
  4. Fix missing headers or unnecessary redirects on your server.

What it's useful for

  • Check that http redirects to https properly.
  • Review your site's security headers.
  • Find redirect chains that slow down loading.

FAQ

301 or 302: which redirect should I use?

Use 301 (permanent) when the change is final, such as http to https; search engines then transfer relevance to the new URL. 302 is for temporary changes.

What is HSTS?

The Strict-Transport-Security header forces browsers to always use HTTPS with your site, even if someone types http://. Enable it only once the whole site works properly over HTTPS.

What do 301 and 302 mean?

Both are redirects: 301 is permanent (best for SEO) and 302 is temporary.

What is a 404 or 500 error?

404 means the page doesn't exist; 500 means a server error. Both cost you visitors.

What are security headers?

Instructions your server sends to protect visitors, such as HSTS, X-Content-Type-Options or Content-Security-Policy.

How many redirects are too many?

Ideally one at most. Each hop adds load time and can leak ranking value.

Why is my site slow to respond?

It could be the server, distance or page size. The response time we show covers the server only.