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SEO and auditingChecked through WebDiag API

Meta Tags Checker

Enter a URL to get an aggregate SEO metadata review: title, description, robots, canonical, H1 summary, social tags, and JSON-LD coverage without weak microtool fragmentation.

  • Single URL
  • SEO metadata
  • Aggregate checks
Online tool

Try the tool

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

Page URL

Result

After the check, title, description, robots, canonical, H1 summary, Open Graph, Twitter/X, and JSON-LD summary will appear here.

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

    Paste the page address you need to check.

  2. 2

    Run the check and wait for the WebDiag API response.

  3. 3

    Review title, description, robots, canonical, social metadata, and JSON-LD summary.

02

What the tool can do

  • Checks metadata as one complete SEO scenario, not separate weak title/H1/description checks.
  • Shows title/description length, canonical summary, robots directives, and social metadata coverage.
  • Uses the backend SafeHttpFetcher with SSRF protection and HTML body size limits.
03

Common use cases

  • Quickly check whether a landing page is ready for indexing and a sane snippet.
  • Before release, see missing or weak HTML metadata signals.
  • Compare canonical, robots, and social metadata after migration or CMS changes.
04

How it works inside

The tool extracts HTML metadata from the fetched page and does not perform JavaScript rendering.

Canonical is resolved relative to the final URL after redirects.

05

Questions and answers

Why is this not separate title and H1 checks?

Because separate microchecks have weak value. WebDiag shows them as parts of a complete metadata tool.

Does this replace a full SEO audit?

No. This is a single-page metadata check. A full site audit needs crawl, history, and additional checks.