What can be added to an SEO changelog?
• Robots.txt and crawl directive changes
• Canonical tag changes or bulk canonical updates
• Redirect rules, chains, or 301/302 changes
• Hreflang and international targeting changes
• XML sitemap structure or logic changes
• Site migrations, replatforms, or domain changes
• CDN, hosting, or server configuration changes
• JavaScript rendering or bundle changes
• Page speed and Core Web Vitals optimisations
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