.Google.com's John Mueller recommends site managers on dealing with outdated amplifier subdomains, suggesting redirects or total DNS elimination.Mueller highly recommends either maintaining 301 redirects or removing the amplifier subdomain entirely from DNS.For sites along with 500,000 web pages, crawl budget plan impact from tradition amplifier URLs isn't a significant concern.AMP subdomains have their own different crawl spending plan coming from the primary domain name.