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
2008-07-24	78.37	98.78	1.22
2008-07-23	79.51	98.79	1.21
2008-07-22	77.56	98.84	1.16
2008-07-21	76.28	98.82	1.18
2008-07-20	82.40	98.85	1.15
2008-07-19	82.02	99.10	0.90
2008-07-18	79.38	99.07	0.93
2008-07-17	78.96	98.93	1.07
2008-07-16	78.77	98.78	1.22
2008-07-15	78.22	98.92	1.08
2008-07-14	79.81	98.86	1.14
2008-07-13	83.49	98.81	1.19
2008-07-12	81.04	98.91	1.09
2008-07-11	81.12	99.02	0.98

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
2008-07-24	418	3279	425	3302	828	5011	926	5321
2008-07-23	334	1383	341	1406	701	3051	802	3594
2008-07-22	340	2037	347	2063	721	3729	828	4281
2008-07-21	337	2219	343	2245	706	3892	808	4356
2008-07-20	329	1609	335	1627	679	3039	772	3415
2008-07-19	321	1751	327	1783	672	3409	770	3912
2008-07-18	319	2278	326	2308	684	3974	786	4543
2008-07-17	329	2099	335	2116	695	3680	793	4110
2008-07-16	341	2501	348	2528	720	4192	822	4699
2008-07-15	317	2289	324	2310	685	3927	787	4345
2008-07-14	315	1694	321	1713	684	3289	781	3708
2008-07-13	309	1220	314	1236	650	2630	742	3027
2008-07-12	304	1551	310	1577	649	3119	751	3555
2008-07-11	297	1378	303	1395	650	2991	750	3484

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

date	average bytes	maximum bytes
2008-07-24	12239	2578886
2008-07-23	12135	2578886
2008-07-22	12187	2578886
2008-07-21	12165	2578886
2008-07-20	12206	2578886
2008-07-19	12128	2578886
2008-07-18	12133	2578886
2008-07-17	12129	2578886
2008-07-16	12186	2578886
2008-07-15	12182	2578886
2008-07-14	12169	2578886
2008-07-13	12136	2578886
2008-07-12	12200	2578886
2008-07-11	12701	12609535

source: basicstate.com