http://www.tufts.edu has been crawled 1,486 times going all the way back to April 30, 1997.

A crawl can be a duplicate of the last one. It happens about 25% of the time across 420,000,000 websites. FAQ
Jan
1
2

January 3, 2013

1 snapshot

3
4
5
6
7
8
9
10
11
12
13

January 14, 2013

2 snapshots

14

January 15, 2013

2 snapshots

15

January 16, 2013

1 snapshot

16

January 17, 2013

1 snapshot

17
18
19
20
21

January 22, 2013

1 snapshot

22
23
24
25
26
27
28
29
30
31
Feb
1
2
3
4
5
6
7
8
9
10
11
12
13
14

February 15, 2013

1 snapshot

15

February 16, 2013

1 snapshot

16
17
18
19
20
21
22
23
24
25
26
27

February 28, 2013

1 snapshot

28
Mar
1

March 2, 2013

1 snapshot

2
3

March 4, 2013

1 snapshot

4
5
6
7

March 8, 2013

1 snapshot

8
9
10
11
12
13

March 14, 2013

1 snapshot

14

March 15, 2013

1 snapshot

15
16
17
18
19
20
21
22
23
24

March 25, 2013

1 snapshot

25

March 26, 2013

1 snapshot

26
27
28
29

March 30, 2013

1 snapshot

30

March 31, 2013

1 snapshot

31
Apr
1

April 2, 2013

1 snapshot

2
3
4
5
6
7
8
9
10
11

April 12, 2013

1 snapshot

12

April 13, 2013

1 snapshot

13

April 14, 2013

1 snapshot

14

April 15, 2013

1 snapshot

15
16
17
18
19

April 20, 2013

1 snapshot

20

April 21, 2013

1 snapshot

21
22

April 23, 2013

3 snapshots

23
24
25

April 26, 2013

1 snapshot

26
27
28
29

April 30, 2013

1 snapshot

30
May

May 1, 2013

1 snapshot

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
Jun
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Jul
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
Aug
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
Sep
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Oct
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
Nov
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Dec
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31

Note

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