global website uptime statistics

How Does Your Site Hosting Stackup?

The server uptime statistics shown below are summarised from the sites that basicstate.com tests. Data is published shortly after 01:00 GMT on a daily basis. You can compare the numbers to see how well your individual site is doing against the global averages. Information on translating these numbers in the context of five nines uptime here ...

uptime performance
The numbers are percentages of: the number of sites having perfect uptime, the average uptime, and the average downtime.

date	perfect	uptime	downtime
2010-03-09	85.80	99.12	0.88
2010-03-08	86.26	99.15	0.85
2010-03-07	87.59	99.15	0.85
2010-03-06	87.34	99.13	0.87
2010-03-05	84.18	99.01	0.99
2010-03-04	81.02	98.67	1.33
2010-03-03	85.91	99.16	0.84
2010-03-02	85.90	99.26	0.74
2010-03-01	85.74	99.17	0.83
2010-02-28	88.98	99.27	0.73
2010-02-27	88.18	99.16	0.84
2010-02-26	87.33	99.21	0.79
2010-02-25	86.71	99.23	0.77
2010-02-24	86.16	99.21	0.79

page transfer performance
All numbers below are expressed in milliseconds. They represent the average and maximum times required to connect to the server, transmit the request, receive the first byte of the answer and receive the last byte of the answer.

date	connection		request		ttfb		ttlb
	avg	max	avg	max	avg	max	avg	max
2010-03-09	176	1741	184	1765	762	4671	942	5205
2010-03-08	171	1531	181	1559	744	4534	923	5193
2010-03-07	162	1213	174	1232	725	4090	895	4602
2010-03-06	161	1259	169	1279	714	4035	886	4539
2010-03-05	394	5711	403	5726	965	7577	1147	8016
2010-03-04	723	6428	731	6445	1292	8308	1476	8770
2010-03-03	199	2582	208	2603	774	5297	956	5812
2010-03-02	184	2197	191	2215	758	5035	937	5566
2010-03-01	166	1509	174	1530	738	4489	921	5040
2010-02-28	156	985	164	1006	715	3766	888	4263
2010-02-27	161	1021	174	1041	717	3805	887	4279
2010-02-26	168	1551	178	1575	732	4401	910	4909
2010-02-25	159	1124	167	1148	729	4177	906	4721
2010-02-24	163	1152	172	1179	736	4242	914	4799

page size
These are the average and maximum page sizes encountered during testing on each day.

date	average bytes	maximum bytes
2010-03-09	18475	1982680
2010-03-08	18170	1287091
2010-03-07	18032	1147081
2010-03-06	18497	2247815
2010-03-05	18176	1555748
2010-03-04	18160	1147081
2010-03-03	18212	4680315
2010-03-02	18342	1147081
2010-03-01	18516	5518691
2010-02-28	18532	5334407
2010-02-27	18346	1147081
2010-02-26	18743	1147081
2010-02-25	18347	1147081
2010-02-24	18186	1147081

source: basicstate.com