SEO and auditingChecked through WebDiag API

Single Page Technical Audit

WebDiag safely fetches one public URL and two origin-level resources, runs a static check set, and returns prioritized issues with recommendations. This is a single-page audit, not a site crawl or browser performance test.

13 static checks
One URL without crawling
SSRF-safe bounded fetch

Online tool

Try the tool

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

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
Enter the public HTTP(S) URL of one page.
2
Wait for the bounded fetch of the page, robots.txt, and one sitemap.xml.
3
Fix issues in P0-P3 order and rerun the audit after changes.

02

What the tool can do

HTTP status, redirect chain, and HTML content type.
Title, description, H1, canonical, robots meta, Open Graph, and JSON-LD.
Security headers, robots.txt, and discovery of one sitemap.xml.

03

Common use cases

Review a page before publishing or after a release.
Get one ordered list of technical fixes.
Manually compare a rerun after fixes.

04

How it works inside

The backend validates the URL, DNS, and connected peer IP at every redirect and bounds redirects, timeouts, compressed bodies, and decoded bodies.

The public frontend receives checks, issues, affected URLs, and recommendations without raw evidence, response headers, or internal metadata.

05

Questions and answers

Is this a full-site audit?

No. The tool audits one URL and does not crawl internal links or sitemap entries.

What does the score mean?

It is a deterministic severity-based score for issues in the current check set. It does not predict rankings, traffic, or uptime.