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
2008-05-16	9.28	97.16	2.84
2008-05-15	41.96	97.46	2.54
2008-05-14	77.08	98.70	1.30
2008-05-13	78.61	98.70	1.30
2008-05-12	78.65	98.79	1.21
2008-05-11	82.96	98.78	1.22
2008-05-10	21.63	93.06	6.94
2008-05-09	66.56	98.17	1.83
2008-05-08	74.52	98.38	1.62
2008-05-07	75.96	98.14	1.86
2008-05-06	76.36	98.14	1.86
2008-05-05	78.30	98.89	1.11
2008-05-04	81.75	99.00	1.00
2008-05-03	79.15	98.90	1.10

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
2008-05-16	693	31574	696	31454	678	30134	0	0
2008-05-15	1487	21237	1472	21230	1599	21342	112	1628
2008-05-14	113	1158	118	1188	531	3069	672	3615
2008-05-13	117	1281	122	1316	540	3244	684	3803
2008-05-12	117	1501	123	1535	537	3424	679	3969
2008-05-11	102	710	107	728	499	2410	633	2820
2008-05-10	149	2058	154	2083	247	2718	701	4091
2008-05-09	250	2860	255	2873	265	3021	810	4556
2008-05-08	190	5091	196	5104	198	5154	739	6563
2008-05-07	148	1493	154	1518	154	1518	697	3703
2008-05-06	142	1504	148	1527	148	1527	690	3680
2008-05-05	113	1208	118	1236	118	1236	662	3644
2008-05-04	106	829	111	846	111	846	621	2972
2008-05-03	107	783	112	801	112	801	623	2892

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

date	average bytes	maximum bytes
2008-05-16	0	0
2008-05-15	2584	2578886
2008-05-14	15030	2578886
2008-05-13	15136	2578886
2008-05-12	15125	2578886
2008-05-11	15189	2578886
2008-05-10	15236	2578886
2008-05-09	15258	2578886
2008-05-08	15206	2578886
2008-05-07	15242	2578886
2008-05-06	15181	2578886
2008-05-05	15143	2578886
2008-05-04	15146	2578886
2008-05-03	15190	2578886

source: basicstate.com