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
2010-09-01	81.47	99.02	0.98
2010-08-31	79.45	99.03	0.97
2010-08-30	84.13	99.15	0.85
2010-08-29	86.12	99.24	0.76
2010-08-28	85.73	99.16	0.84
2010-08-27	83.20	99.21	0.79
2010-08-26	83.08	99.17	0.83
2010-08-25	83.03	99.13	0.87
2010-08-24	83.24	99.24	0.76
2010-08-23	84.17	99.16	0.84
2010-08-22	87.37	99.25	0.75
2010-08-21	86.04	99.30	0.70
2010-08-20	65.41	98.86	1.14
2010-08-19	83.43	99.18	0.82

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
2010-09-01	265	3898	265	3898	837	6386	1009	6855
2010-08-31	251	3721	251	3721	813	6266	986	6795
2010-08-30	250	3731	250	3731	810	6209	983	6697
2010-08-29	253	3581	254	3581	789	5743	951	6126
2010-08-28	251	3491	251	3491	791	5699	956	6123
2010-08-27	241	3505	241	3505	795	5918	964	6367
2010-08-26	236	3445	236	3445	808	5970	979	6421
2010-08-25	245	3590	245	3590	816	6118	985	6578
2010-08-24	233	3399	233	3399	791	5884	957	6340
2010-08-23	243	3559	243	3559	816	6041	986	6489
2010-08-22	175	1797	175	1797	723	4467	887	4904
2010-08-21	206	2914	206	2914	746	5239	907	5651
2010-08-20	272	4030	272	4031	829	6344	997	6799
2010-08-19	317	4396	317	4397	889	6691	1061	7151

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

date	average bytes	maximum bytes
2010-09-01	18952	10519272
2010-08-31	18958	2649365
2010-08-30	18949	2649365
2010-08-29	18953	2649365
2010-08-28	18936	2649365
2010-08-27	18934	2649365
2010-08-26	18934	2649365
2010-08-25	18917	2649365
2010-08-24	18929	2649365
2010-08-23	18883	2649365
2010-08-22	18896	2649365
2010-08-21	18874	2649365
2010-08-20	18844	2569628
2010-08-19	18849	2569628

source: basicstate.com