Technical SEO Checker &
Crawlability Auditor.
Find technical SEO issues that block Google, Bing, and AI web crawlers from indexing your site — with exact platform-specific code fixes.
What This Analyzer Checks
Every check is evaluated by our deterministic engine according to Google standards and AI search requirements.
HTTPS & SSL Security
Verifies valid SSL certificate encryption, HTTPS redirection, and absence of mixed-content HTTP assets.
Canonical URL Consistency
Checks for valid self-referential or cross-domain canonical link tags to prevent duplicate content penalties.
Robots.txt Access Rules
Analyzes Disallow directives to ensure critical CSS, JS, and HTML assets are not blocked from crawlers.
XML Sitemap Health
Validates XML sitemap presence, indexability, 200 OK status codes, and sitemap match rates.
Noindex / Nofollow Directives
Scans meta robots tags and HTTP headers for accidental noindex directives suppressing search visibility.
HTTP Status Code Matrix
Detects 404 broken links, 301/302 redirect chains, and 5xx server errors across the site crawl topology.
Why Technical SEO is the Foundation of Search Visibility
Even world-class content will not rank if search engines cannot crawl or index your pages. Technical SEO issues like misconfigured canonicals, blocked robots.txt files, or broken SSL certificates completely prevent Googlebot and AI search crawlers from processing your site.
How WebDarpan Analyzes Your Site
Secure URL Validation
Validates input URL with double-pass SSRF protection and resolves canonical domain.
Multi-Page Site Crawl
Crawls links up to your plan's maximum pages per scan limit.
Deterministic Audit
Evaluates 20+ technical rules against raw HTML, headers, and sitemaps.
Actionable Fix Generation
Generates exact code fixes for Next.js, WordPress, Nginx, and Shopify.
Common Issues Discovered by This Analyzer
Illustrative examples of issues detected during deterministic audit analysis.
Page lacks a rel='canonical' tag, creating vulnerability to URL parameter duplicate content.
Disallow rule prevents crawlers from rendering the fully styled DOM layout.
Page declares multiple competing canonical link tags, causing search engine confusion.
Meta robots contains 'noindex', instructing search engines to remove page from search index.
What You Receive in the Full Report
Frequently Asked Questions About This Checker
What is a canonical URL tag and why is it essential for SEO?
A canonical tag specifies the master version of a web page to search engines. It consolidates ranking equity and prevents duplicate content penalties caused by tracking parameters, session IDs, and trailing slash variants.
How does robots.txt affect search engine and AI crawler discovery?
Robots.txt informs search bots and AI agents which paths they can crawl. Accidentally disallowing stylesheets, scripts, or core pages prevents search engines from fully rendering the DOM and indexing the page.
What is the difference between a 301 and 302 redirect for technical SEO?
A 301 redirect represents a permanent URL migration, instructing Google to pass link equity to the destination. A 302 redirect is temporary, keeping the original URL in the index without transferring full authority.