Generador de URL Canónica

A Canonical URL is a technical SEO tag that tells search engines which version of a URL is the "Master" or "Primary" one. Large websites often have multiple links that point to the same content (e.g., mysite.com/page, mysite.com/page?ref=social, or www.mysite.com/page). Without a Canonical Generator, search engines might see these as "Duplicate Content," which splits your authority and lowers your ranking.

The generation engine creates a standardized HTML link element:

1. Protocol Normalization: The tool ensures the URL uses your preferred protocol (https vs http).
2. Subdomain Standardization: The engine helps you decide between www and "non-www" versions of your domain to ensure consistent indexing.
3. Trailing Slash Logic: The tool handles the subtle difference between /page and /page/, a common source of duplication.
4. Tag Serialization: The final output is a single line of HTML5 header code: <link rel="canonical" href="https://mysite.com/page/" />.
5. Integration Mapping: The tool provides instructions on where to place the tag within your CMS or static site.

The History of rel="canonical" and the "Join Effort"

In the early 2000s, duplicate content was a massive problem for the web. In 2009, Google, Microsoft (Bing), and Yahoo jointly announced support for the rel="canonical" attribute.

The goal was to give webmasters a "Soft Redirect"—a way to tell search engines "this page is the same as that one" without forcing the user to a different URL. This allowed developers to keep Tracking Parameters for marketing while maintaining a clean, authoritative presence in search results. Today, use of the canonical tag is considered a Technical SEO Mandatory.

Technical Comparison: rel="canonical" vs. 301 Redirects

Knowing when to "Redirect" vs "Reference" is a hallmark of an expert web developer.

By using a dedicated Canonical Generator, you prevent "Content Cannibalization," ensuring your most important pages get the visibility they deserve.

Security Considerations: Cross-Domain Canonicals

Managing authority requires careful configuration of your server headers:

• Self-Referencing: Every page should have a canonical tag that points to itself. This prevents scraper sites from stealing your authority if they copy your HTML.
• Cross-Domain Canonicals: You can use a canonical tag to point a page on site-A.com to site-B.com. This is useful if you cross-post articles, but it can be used maliciously if your site is compromised.
• Mixed Protocols: Never point a canonical https page to an http version. Google will often ignore the tag if it leads to an insecure URL.
• Client-Side Privacy: To maintain your absolute Data Privacy, the entire generation process happens locally in your browser. Your site structure and draft URLs are never sent to our servers.