CRL sites ordered by failures over the last 1 day, updated every 15 mins. 304 sites
Click on a column heading to sort by that column, click twice to reverse order.
Click the site name to see graphs of site performance.
FAQ
Rank Performance graph Company site OS Outage hh:mm:ss Failed Req% DNS Connect First byte Total Kb/s size(K)
1 Linux  0:00:00  0.000  0.133 0.005 0.017 0.028 2035 22
2 Linux  0:00:00  0.000  0.133 0.005 0.017 0.020 2969 10
3 Linux  0:00:00  0.000  0.138 0.005 0.018 0.032 3670 50
4 Linux  0:00:00  0.000  0.428 0.005 0.051 0.052 - 1
5 Linux  0:00:00  0.000  0.145 0.005 0.019 0.020 - 1
6 Linux  0:00:00  0.000  0.143 0.005 0.019 0.020 - 1
7 Linux  0:00:00  0.000  0.216 0.005 0.051 0.051 - 0
8 Linux  0:00:00  0.000  0.281 0.005 0.051 0.055 3932 14
9 Linux  0:00:00  0.000  0.136 0.005 0.019 0.040 4375 92
10 Linux  0:00:00  0.000  0.285 0.005 0.054 0.054 - 0
11 Linux  0:00:00  0.000  0.256 0.005 0.050 0.055 2794 13
12 Linux  0:00:00  0.000  0.215 0.005 0.050 0.060 2476 25
13 Linux  0:00:00  0.000  0.078 0.005 0.028 0.032 2982 13
14 Linux  0:00:00  0.000  0.923 0.005 0.052 0.052 2151 1
15 Linux  0:00:00  0.000  0.167 0.006 0.061 0.061 - 1
16 Linux  0:00:00  0.000  0.136 0.006 0.019 0.020 - 1
17 Linux  0:00:00  0.000  0.129 0.006 0.020 0.021 2034 2
18 Linux  0:00:00  0.000  0.334 0.006 0.054 0.054 - 1
19 Linux  0:00:00  0.000  0.222 0.006 0.052 0.054 2306 5
20 unknown  0:00:00  0.000  0.320 0.006 0.040 0.429 4588 1783
21 unknown  0:00:00  0.000  0.211 0.007 0.019 0.026 2846 20
22 Linux  0:00:00  0.000  0.090 0.007 0.026 0.026 - 0
23 unknown  0:00:00  0.000  0.206 0.007 0.015 0.015 20737 1
24 unknown  0:00:00  0.000  0.200 0.007 0.015 0.021 2599 18
25 Linux  0:00:00  0.000  0.209 0.007 0.047 0.047 - 1
26 Linux  0:00:00  0.000  0.198 0.007 0.058 0.058 - 0
27 Linux  0:00:00  0.000  0.483 0.007 0.055 0.055 - 1
28 unknown  0:00:00  0.000  0.200 0.007 0.016 0.047 4158 130
29 Linux  0:00:00  0.000  0.229 0.007 0.015 0.023 2825 20
30 Linux  0:00:00  0.000  0.206 0.007 0.031 0.031 - 0
31 Linux  0:00:00  0.000  0.221 0.007 0.028 0.029 27303 2
32 unknown  0:00:00  0.000  0.238 0.007 0.033 0.033 - 0
33 Linux  0:00:00  0.000  0.210 0.007 0.020 0.025 2202 11
34 unknown  0:00:00  0.000  0.204 0.007 0.015 0.028 2583 31
35 Linux  0:00:00  0.000  0.222 0.007 0.047 0.047 - 0
36 unknown  0:00:00  0.000  0.313 0.007 0.017 0.017 - 1
37 unknown  0:00:00  0.000  0.203 0.007 0.016 0.038 3336 73
38 Linux  0:00:00  0.000  0.250 0.007 0.031 0.031 - 1
39 unknown  0:00:00  0.000  0.205 0.007 0.016 0.055 3628 142
40 unknown  0:00:00  0.000  0.235 0.007 0.022 0.022 23460 4
41 unknown  0:00:00  0.000  0.195 0.007 0.029 0.033 2582 12
42 unknown  0:00:00  0.000  0.200 0.007 0.043 0.044 15881 6
43 unknown  0:00:00  0.000  0.194 0.007 0.032 0.032 - 0
44 Linux  0:00:00  0.000  0.200 0.007 0.017 0.017 18360 3
45 Linux  0:00:00  0.000  0.228 0.007 0.022 0.027 2533 12
46 unknown  0:00:00  0.000  0.290 0.007 0.023 0.023 - 0
47 unknown  0:00:00  0.000  0.202 0.007 0.044 0.053 1668 15
48 unknown  0:00:00  0.000  0.201 0.007 0.017 0.163 3349 488
49 Linux  0:00:00  0.000  0.208 0.007 0.018 0.018 17121 3
50 Linux  0:00:00  0.000  0.281 0.007 0.036 0.036 - 0
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Report from 24-Jul-2017 10:45 till 25-Jul-2017 10:39

Generated on 25-Jul-2017 10:48

Note: Outage times display the minimum outage time which may understate each outage by up to 15 minutes, which is the sampling frequency.

If you are researching prospective hosting locations, or performing competitor analysis and would like to buy bespoke performance monitoring of sites of your choice, or access to historical data, please mail us at sales@netcraft.com

Interpreting the Tables

By default the sites are ranked in order of failed requests and time to connect, shortest first, in order to give the clearest indication of network capacity and congestion, with the least impact from the performance of the individual web server, though it is possible to sort by other columns by clicking on the column heading.

Presently our performance collectors are located at London/DXI Networks, San Jose/Datapipe, Phoenix/GoDaddy, Zurich/Qube, Amsterdam/Webair, New York/New York Internet-2, Italy/Aruba-2 and Pennsylvania/INetU-3. Sites located near one of our collectors may have an advantage over others listed in the table, though this effect is mitigated by using averages collected from multiple points. Sites exclusively hosted in the Far East are at a disadvantage as we do not currently have a performance collector in the region.

Sites using a Content Distribution Network, such as Akamai, have a particular advantage as the response to our request would come from the node closest to each performance collector.

More information can be found in the FAQ.