Internet Archive Wayback Machine

http://validator.w3.org/ has been crawled 1,384 times going all the way back to May 14, 1998.

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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2		1		1	1	2
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1	1		1		1	1
	1			2	3	7
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		4	7	14	3	4
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2						1
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1	2	1	1	2	1
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1	1	1		2
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Jan
						January 1, 2011 1 snapshot 12:40:56 1
January 2, 2011 2 snapshots 04:24:42 21:52:50 2	3	January 4, 2011 1 snapshot 20:35:54 4	5	January 6, 2011 1 snapshot 18:23:27 6	January 7, 2011 1 snapshot 17:38:55 7	January 8, 2011 2 snapshots 02:53:50 19:24:07 8
9	January 10, 2011 1 snapshot 15:51:51 10	January 11, 2011 1 snapshot 02:41:36 11	12	13	14	January 15, 2011 1 snapshot 06:58:34 15
January 16, 2011 1 snapshot 17:47:25 16	January 17, 2011 1 snapshot 04:30:46 17	18	January 19, 2011 1 snapshot 14:58:28 19	20	January 21, 2011 1 snapshot 17:27:12 21	January 22, 2011 1 snapshot 22:20:48 22
23	January 24, 2011 1 snapshot 15:56:27 24	25	26	January 27, 2011 2 snapshots 18:29:59 19:15:00 27	January 28, 2011 3 snapshots 07:53:25 17:50:08 20:31:21 28	January 29, 2011 7 snapshots 02:25:35 03:12:49 03:13:35 03:59:02 07:52:23 14:07:40 20:45:36 29
January 30, 2011 1 snapshot 22:31:41 30	January 31, 2011 2 snapshots 12:00:53 15:28:37 31

Feb
		February 1, 2011 4 snapshots 00:40:58 03:45:19 09:45:13 10:02:19 1	February 2, 2011 7 snapshots 03:41:42 13:02:27 15:43:07 19:29:24 19:45:58 20:22:01 20:58:46 2	February 3, 2011 14 snapshots 00:47:59 01:40:02 01:55:22 02:23:43 03:07:33 03:25:17 03:25:27 05:50:27 06:12:38 08:44:37 10:20:55 11:40:18 20:03:04 21:11:00 3	February 4, 2011 3 snapshots 00:16:09 12:47:36 20:18:08 4	February 5, 2011 4 snapshots 00:51:22 14:04:46 15:20:33 18:50:36 5
6	February 7, 2011 1 snapshot 12:29:33 7	February 8, 2011 5 snapshots 00:43:40 07:16:01 11:51:58 15:49:05 16:43:06 8	February 9, 2011 1 snapshot 04:11:24 9	10	11	February 12, 2011 1 snapshot 08:00:54 12
13	14	15	16	17	18	February 19, 2011 3 snapshots 01:43:50 20:17:27 22:03:49 19
February 20, 2011 2 snapshots 00:02:33 00:11:35 20	21	22	23	24	25	February 26, 2011 1 snapshot 22:54:29 26
27	February 28, 2011 1 snapshot 02:45:58 28

Mar
		March 1, 2011 2 snapshots 21:32:56 23:42:52 1	2	March 3, 2011 1 snapshot 15:32:17 3	March 4, 2011 1 snapshot 20:36:15 4	March 5, 2011 1 snapshot 02:43:25 5
March 6, 2011 1 snapshot 04:20:11 6	March 7, 2011 2 snapshots 19:11:10 21:21:16 7	March 8, 2011 1 snapshot 08:10:06 8	March 9, 2011 1 snapshot 02:49:07 9	March 10, 2011 2 snapshots 05:48:38 19:57:53 10	March 11, 2011 1 snapshot 21:41:51 11	12
13	March 14, 2011 1 snapshot 19:07:52 14	March 15, 2011 1 snapshot 04:50:39 15	16	17	18	19
March 20, 2011 1 snapshot 03:03:50 20	March 21, 2011 1 snapshot 19:00:51 21	22	23	24	25	March 26, 2011 1 snapshot 11:52:40 26
March 27, 2011 2 snapshots 05:22:39 08:52:46 27	28	March 29, 2011 1 snapshot 08:28:07 29	30	31

Apr
					April 1, 2011 1 snapshot 13:48:47 1	April 2, 2011 1 snapshot 17:47:31 2
April 3, 2011 1 snapshot 12:08:39 3	April 4, 2011 1 snapshot 04:14:32 4	5	6	April 7, 2011 1 snapshot 03:47:26 7	8	April 9, 2011 2 snapshots 02:41:13 07:29:23 9
10	11	12	13	14	15	April 16, 2011 2 snapshots 04:51:53 05:04:14 16
17	18	19	20	21	April 22, 2011 1 snapshot 23:12:29 22	April 23, 2011 1 snapshot 01:19:13 23
24	25	26	27	28	29	April 30, 2011 2 snapshots 08:32:43 20:41:29 30

May
1	2	3	4	May 5, 2011 1 snapshot 12:44:25 5	6	May 7, 2011 1 snapshot 12:07:38 7
May 8, 2011 1 snapshot 20:25:07 8	9	10	11	12	13	May 14, 2011 1 snapshot 17:43:11 14
15	16	17	18	19	20	21
22	23	24	25	26	27	28
29	30	31

Jun
			1	June 2, 2011 1 snapshot 07:28:34 2	3	4
5	6	7	8	June 9, 2011 1 snapshot 12:03:31 9	10	11
12	13	June 14, 2011 1 snapshot 01:26:35 14	15	16	17	18
19	20	June 21, 2011 1 snapshot 02:17:14 21	22	June 23, 2011 1 snapshot 02:29:59 23	24	June 25, 2011 1 snapshot 10:31:30 25
26	27	28	29	30

Jul
					July 1, 2011 1 snapshot 00:39:02 1	2
July 3, 2011 2 snapshots 00:58:49 20:15:26 3	4	5	6	7	8	July 9, 2011 3 snapshots 00:38:09 02:27:12 15:40:24 9
10	11	July 12, 2011 1 snapshot 01:22:52 12	13	14	15	16
17	18	July 19, 2011 3 snapshots 15:11:55 15:28:02 17:45:56 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://validator.w3.org/ was crawled by the Wayback Machine, not how many times the site was actually updated. More info in the FAQ.

January 1, 2011

January 2, 2011

January 4, 2011

January 6, 2011

January 7, 2011

January 8, 2011

January 10, 2011

January 11, 2011

January 15, 2011

January 16, 2011

January 17, 2011

January 19, 2011

January 21, 2011

January 22, 2011

January 24, 2011

January 27, 2011

January 28, 2011

January 29, 2011

January 30, 2011

January 31, 2011

February 1, 2011

February 2, 2011

February 3, 2011

February 4, 2011

February 5, 2011

February 7, 2011

February 8, 2011

February 9, 2011

February 12, 2011

February 19, 2011

February 20, 2011

February 26, 2011

February 28, 2011

March 1, 2011

March 3, 2011

March 4, 2011

March 5, 2011

March 6, 2011

March 7, 2011

March 8, 2011

March 9, 2011

March 10, 2011

March 11, 2011

March 14, 2011

March 15, 2011

March 20, 2011

March 21, 2011

March 26, 2011

March 27, 2011

March 29, 2011

April 1, 2011

April 2, 2011

April 3, 2011

April 4, 2011

April 7, 2011

April 9, 2011

April 16, 2011

April 22, 2011

April 23, 2011

April 30, 2011

May 5, 2011

May 7, 2011

May 8, 2011

May 14, 2011

June 2, 2011

June 9, 2011

June 14, 2011

June 21, 2011

June 23, 2011

June 25, 2011

July 1, 2011

July 3, 2011

July 9, 2011

July 12, 2011

July 19, 2011

Note