A new search engine has launched in Israel, aimed at a specific market. "Koogle" is for "religiously devout Jews" that are apparently otherwise barred by rabbis from surfing the Internet.

Orthodox rabbis, said to restrict use of the web to ensure followers avoid viewing sexually explicit material, have given their approval to Koogle, described as a "kosher" search engine.

Yossi Altman, the site's creator, says Koogle, is "a play on the names of a Jewish noodle pudding and the ubiquitous Google".

Koogle filters out "religiously objectionable material" as well as shopping sites that contain items forbidden by Orthodix rabbis, such as televisions.

"This is a kosher alternative for ultra-Orthodox Jews so that they may surf the internet", Altman told Reuters.

In addition, if users try and buy something on the Jewish Sabbath, "Koogle gets stuck and won't let you".