The website for Borat Sagdiyev, played by Sacha Baron Cohen in his Da Ali G Show, was suspended two weeks after leaders of the Central Asian country took out a four-page ad in the New York Times that sought to counter the "facts" that Borat presented about his country on his "Borat in USA" satirical segments.
A government-appointed internet regulator confirmed it has pulled www.borat.kz, saying it is so Cohen cannot badmouth Kazakhstan under the .kz domain name.
"He can go and do whatever he wants at other domains," said Nurlan Isin, President of the Association of Kazakh IT Companies.
Cohen last month hosted the MTV Europe Awards in Lisbon in character as Borat and described shooting dogs for fun and said his wife could not leave Kazakhstan as she was a woman.
"In America, women can vote but horse cannot! It is the other way round in my country," said the satirical character.
Other comments included:
"I am strong, I can throw rock at a gypsy from 15 metres. Ten metre if I am chained up."
"We celebrate with a men's-only party in my hotel room where we will play pingpong, wrestle totally nude and shoot dogs from the balcony."
Afterwards, the Kazakh Foreign Ministry said it could not rule out that Cohen/Borat was under "political orders" to denigrate their country's name, and threatened to sue the actor.
Cohen, who is Jewish, responded to the legal threats on the www.borat.kz site in character, saying: "I have no connection to Mr Cohen and fully support my government's position to sue this Jew.
"Since the 2003 reforms, Kazakhstan is as civilized as any other country in the world. Women can now travel on inside of bus, homosexuals no longer have to wear blue hats and age of consent has been raised to 8 years old. Please, captain of industry, I invite you to come to Kazakhstan, where we have incredible natural resources, hard working labour and some of the cleanest prostitutes in all of Central Asia."
Borat is one of several outrageous characters devised by Cohen in his television shows.
He shot to fame as Ali G, who mocks British street gang culture, and also plays Bruno, a gay Austrian fashion show presenter.
Kazakhstan defends international reputation
The Kazakh government has been so incensed over Borat's portrayal of the country that it has launched a public relations offensive to counter his statements, reportedly employing two Western PR companies to help with damage control, according to British media.
On November 28, the Kazakhstan government published a four-page advertising section in the New York Times, titled Kazakhstan in the 21st Century.
It outlined facts on the country, including testimonials to its oil production, democracy, education system and gender equality.
Earlier in the month, The Independent newspaper in London carried a list of 50 things about Kazakhstan "you won't learn from Borat", including that it is almost as big as western Europe.
Since the fall of the Soviet Union, Kazakhstan, which has a population of 15 million people, has emerged as the dominant power in Central Asia, and is among the world's top oil producers.