Police have revealed it is the second fire at the Bondi home within a week, and they are investigating a possible link between the incidents.

Mr Shanks-Markovina was not harmed during the fire which took hold on the veranda of his Bondi house just after midnight on Wednesday.

The blaze significantly damaged the YouTuber's home and the property next door, NSW Police said in a statement.

The house was vacant at the time and nobody was harmed.

Police have launched an investigation and will look into possible links to another fire at his house last Thursday.

His lawyers have claimed the incident was a firebombing, and have called for "every possibly police resource" to be thrown at finding the culprit.

"We confirm that Jordan Shanks' home was firebombed last night," legal firm Xenophon Davis said in a statement.

"He is safe. We hope that every possible police resource is dedicated today to securing evidence and intel.

"It might even warrant a Strike Force focused upon terrorism and attempted homicide rather than dangerous jokes."

Australian Associated Press