make your web site faster

https://gtmetrix.com/

seeing meta tags via web site

https://www.heymeta.com/

in site duplicate content

http://www.siteliner.com/

Steel Buildings & Metal Roofing - Total Value | Mueller, Inc

structured data testing tool

https://search.google.com/structured-data/testing-tool/u/0/https://search.google.com/structured-data/testing-tool/u/0/

virus problems on a pc

https://www.google.com/chrome/cleanup-tool/index.html

https://www.safer-networking.org/dl/

testing web site speed

https://developers.google.com/speed/pagespeed/insights/