See this example properly formatted in the QUT Cite tool.
According to the Cooper (2010, para. 4)…
Most web pages do not have page numbers, use para. and the paragraph number.
Author, A. A. (Year). Title. Site Name. http://www.xxxxxxxx
Autism CRC. (n.d.). Robotics social clubs for autistic students. https://www.autismcrc.com.au/our-programs/robotics-social-clubs-autistic-students
Bligh, R. (2019). ACP Cladding. Bligh Tanner. http://blightanner.com.au/news-article/acp-cladding/
Author, A. A. (Year). Title of web page. Site Name. Retrieved Month DD, Year, from http://www.xxxxxxxx
BirdLife Australia. (n.d.). Survey results. Birds in Backyards. Retrieved January 22, 2018, from http://www.birdsinbackyards.net/surveys/Survey-Results
It can be particularly hard to determine authors and dates for web pages. See the Authors and Publication details buttons below.
For more information from the APA blog see: Webpage on a website.