Editor's note: President Xi Jinping sent a congratulatory letter to the 4th World Internet Conference, which triggered warm responses among the attendees. The following are some of those responses.

Leonid Todorov, general manager of APTLD. [Photo provided to chinadaily.com.cn]

President Xi's congratulatory letter will pave the way for further development of Chinese efforts to promote a robust and sustainable social economic development by means of the internet.