http://xs4all.nl has been crawled 923 times going all the way back to December 31, 1996.

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
3

January 4, 2009

1 snapshot

4
5
6
7
8
9
10
11
12
13
14
15

January 16, 2009

1 snapshot

16
17
18
19
20
21
22
23

January 24, 2009

1 snapshot

24
25

January 26, 2009

1 snapshot

26
27
28

January 29, 2009

2 snapshots

29
30
31
Feb

February 1, 2009

1 snapshot

1
2
3
4
5
6

February 7, 2009

1 snapshot

7

February 8, 2009

2 snapshots

8

February 9, 2009

2 snapshots

9
10
11

February 12, 2009

2 snapshots

12
13

February 14, 2009

1 snapshot

14

February 15, 2009

2 snapshots

15
16
17

February 18, 2009

2 snapshots

18
19

February 20, 2009

1 snapshot

20
21
22
23

February 24, 2009

1 snapshot

24
25

February 26, 2009

2 snapshots

26
27
28
Mar

March 1, 2009

1 snapshot

1
2
3
4

March 5, 2009

1 snapshot

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
Apr
1
2
3
4
5
6
7
8
9
10

April 11, 2009

1 snapshot

11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29

April 30, 2009

1 snapshot

30
May
1
2
3

May 4, 2009

1 snapshot

4

May 5, 2009

1 snapshot

5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26

May 27, 2009

1 snapshot

27
28
29
30
31
Jun

June 1, 2009

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
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

August 3, 2009

1 snapshot

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

September 14, 2009

1 snapshot

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://xs4all.nl was crawled by the Wayback Machine, not how many times the site was actually updated. More info in the FAQ.