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Security and networkingChecked through WebDiag API

HTTP Headers Analyzer

Enter a URL to get a full header inventory without duplicating the dedicated Security Headers Checker.

  • response headers
  • cache/content
  • single response
Online tool

Try the tool

Enter a URL: WebDiag will run a safe network check and show the result.

URL

Network check through backend

For HTTP/SEO tools, the URL is sent to the WebDiag API, where SSRF protection, DNS/IP policy, and redirect limits are applied.

Reviewed: 2026-07-17
01

How to use it

  1. 1

    Enter a public http/https URL.

  2. 2

    Run the HTTP header analysis.

  3. 3

    Review disclosure, cache/content metadata, and raw headers.

02

What the tool can do

  • Shows status, redirects, and header count.
  • Flags Server and X-Powered-By disclosure.
  • Shows cache-control, content-type, encoding, and Vary.
03

Common use cases

  • Quickly inspect the full response header set.
  • Find unnecessary technology disclosure in headers.
  • Prepare data for CDN/cache configuration.
04

How it works inside

The tool uses SafeHttpFetcher and does not download a large body.

The result reflects one response at check time.

05

Questions and answers

Does this replace Security Headers Checker?

No. This is a general header inventory; security policy is checked by a separate tool.

Why is Server header a warning?

It can reveal stack details. Not always critical, but should be intentional.