http://gmail.google.com has been crawled 1,461 times going all the way back to April 1, 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 13, 2013

1 snapshot

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January 14, 2013

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January 15, 2013

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February 3, 2013

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February 24, 2013

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March 2, 2013

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March 23, 2013

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March 26, 2013

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March 28, 2013

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March 29, 2013

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Apr

April 1, 2013

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April 3, 2013

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April 10, 2013

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April 26, 2013

1 snapshot

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April 29, 2013

1 snapshot

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May
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Jun
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Jul
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Aug
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Sep
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Oct
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Nov
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Dec
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Note

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