https://web.dev/native-lazy-loading/

• lazy
• loading
• images
• iframe
• fallback
• polyfill

http://www.kriisiis.fr/index.php/10-etapes-pour-integrer-une-iframe-app-plutot-quun-onglet-fbml-sur-sa-page-facebook/

• facebook
• iframe

http://fieldsmarshall.com/htmliframe-inf-wordpress-infection/

• wordpress
• html
• inf
• infection
• php
• iframe