What potential pitfalls should be considered when automatically generating a sitemap from internal links?

One potential pitfall when automatically generating a sitemap from internal links is including non-indexable or irrelevant pages in the sitemap. To avoid this, you can filter out certain URLs based on criteria such as meta tags or URL patterns before adding them to the sitemap. 

// Example code to filter out non-indexable or irrelevant pages from sitemap generation

$internalLinks = // Array of internal links generated from the website
$sitemap = [];

foreach ($internalLinks as $link) {
    // Check if the URL meets certain criteria to be included in the sitemap
    if (shouldIncludeInSitemap($link)) {
        $sitemap[] = $link;
    }
}

// Function to determine if a URL should be included in the sitemap
function shouldIncludeInSitemap($url) {
    // Add your logic here to filter out non-indexable or irrelevant pages
    // For example, check for meta tags or URL patterns
    return true; // Return true if the URL should be included in the sitemap
}

Keywords

DOMDocument XPath recursion URL normalization duplicate content.

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