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	81.46	99.02	0.98
2010-08-31	79.47	99.03	0.97
2010-08-30	84.14	99.15	0.85
2010-08-29	86.14	99.24	0.76
2010-08-28	85.75	99.16	0.84
2010-08-27	83.22	99.21	0.79
2010-08-26	83.06	99.16	0.84
2010-08-25	83.05	99.13	0.87
2010-08-24	83.26	99.24	0.76
2010-08-23	84.18	99.16	0.84
2010-08-22	87.34	99.25	0.75
2010-08-21	86.02	99.31	0.69
2010-08-20	65.43	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	6384	1009	6853
2010-08-31	251	3721	251	3721	813	6264	985	6793
2010-08-30	250	3730	250	3730	810	6206	982	6694
2010-08-29	253	3580	253	3580	788	5742	951	6124
2010-08-28	251	3491	251	3491	790	5697	956	6120
2010-08-27	241	3504	241	3504	795	5915	964	6364
2010-08-26	236	3444	236	3444	807	5968	978	6419
2010-08-25	244	3590	245	3590	816	6116	985	6576
2010-08-24	233	3398	233	3398	791	5880	957	6337
2010-08-23	243	3557	243	3557	815	6038	986	6485
2010-08-22	175	1796	175	1796	723	4471	886	4908
2010-08-21	206	2913	206	2913	745	5238	906	5649
2010-08-20	272	4030	272	4030	829	6342	996	6797
2010-08-19	317	4396	317	4396	889	6689	1060	7148

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

date	average bytes	maximum bytes
2010-09-01	18947	10519272
2010-08-31	18953	2649365
2010-08-30	18944	2649365
2010-08-29	18948	2649365
2010-08-28	18930	2649365
2010-08-27	18928	2649365
2010-08-26	18928	2649365
2010-08-25	18911	2649365
2010-08-24	18923	2649365
2010-08-23	18877	2649365
2010-08-22	18889	2649365
2010-08-21	18867	2649365
2010-08-20	18837	2569628
2010-08-19	18842	2569628

source: basicstate.com