Please take a minute to read, first, the here bellow instructions lines;
Follow the 5 steps, one by one.

1. Click the following link, to reach the converter tool:
     IDN Converter Tool

2. Type your domain name in HEBREW in the empty field, without "www" and
   without its extension.

3. Click the "Convert" button and copy the result appears, right above, under
   "PUNYCODE".

4. Go back to our Checker Tool and put the above mentioned translated name in the
   proper field (use "copy-paste").
   Do not forget to choose one or more of the relevant extensions (.co.il, .org.il,
   .com or .net).

5. Check availability and continue registering your desired domain.