<!DOCTYPE html> <html lang="ja"> <head> <meta charset="utf-8"> <title> jbr-cs.com </title> </head> <body> <h1> jbr-cs.com </h1> </body> </html>
You can type viewhtmlonline.com in front of any url you're browsing and it will show you the source.
viewhtmlonline.com
For example: viewhtmlonline.com/https://temp.cool
viewhtmlonline.com/https://temp.cool