http://www.katyperry.com/ has been crawled 162 times going all the way back to March 25, 2004.

A crawl can be a duplicate of the last one. It happens about 25% of the time across 420,000,000 websites. FAQ

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January 9, 2011

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February 9, 2011

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March 25, 2011

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March 28, 2011

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March 29, 2011

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April 26, 2011

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April 28, 2011

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April 29, 2011

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April 30, 2011

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May 3, 2011

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May 5, 2011

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May 9, 2011

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May 10, 2011

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May 12, 2011

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May 18, 2011

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May 23, 2011

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May 31, 2011

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June 10, 2011

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June 15, 2011

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June 28, 2011

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July 9, 2011

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July 13, 2011

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July 18, 2011

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July 19, 2011

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July 25, 2011

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Note

This calendar view maps the number of times http://www.katyperry.com/ was crawled by the Wayback Machine, not how many times the site was actually updated. More info in the FAQ.