Among other things, the EBU will investigate the rules for how different countries are allowed to promote their Eurovision entry, writes Martin Green, head of the Eurovision Song Contest, in an open letter to fans and TV companies, according to SVT.
It is allowed to promote one's country's entry, notes Green, but Israel has received criticism from several quarters for its targeted campaign for its artist.
"We want to ensure that this type of promotion does not disproportionately affect the natural support and foreign voting that we always see in the viewer vote", writes Green in his letter.
The EBU will also review how many votes each person can cast in the competition. In this year's competition, it was possible to vote 20 times per person.
"There is no evidence that it unfairly affects the final result, but the question has been raised, so we will look into it", writes Green.
Israel received low jury votes in several countries, but won the total viewer vote and finished second overall in this year's Eurovision Song Contest after winning Austria. Several European TV companies have demanded an investigation into the result.
