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  0.115 0.006 0.020 0.021 - 1
2 Linux  0:00:00  0.000  0.124 0.006 0.025 0.025 1950 2
3 Linux  0:00:00  0.000  0.158 0.006 0.020 0.022 1197 2
4 Linux  0:00:00  0.000  0.297 0.006 0.059 0.059 - 0
5 Linux  0:00:00  0.000  0.338 0.006 0.061 0.061 - 0
6 Linux  0:00:00  0.000  0.127 0.006 0.024 0.025 - 1
7 Linux  0:00:00  0.000  0.115 0.006 0.020 0.020 - 1
8 Linux  0:00:00  0.000  0.442 0.006 0.058 0.058 - 1
9 Linux  0:00:00  0.000  0.744 0.006 0.063 0.063 4183 1
10 Linux  0:00:00  0.000  0.279 0.006 0.061 0.062 - 0
11 Linux  0:00:00  0.000  0.079 0.006 0.031 0.035 2973 12
12 Linux  0:00:00  0.000  0.298 0.006 0.055 0.056 1736 1
13 Linux  0:00:00  0.000  0.232 0.006 0.054 0.058 3052 12
14 Linux  0:00:00  0.000  1.088 0.006 0.058 0.058 - 0
15 Linux  0:00:00  0.000  0.117 0.006 0.028 0.029 - 1
16 Linux  0:00:00  0.000  0.072 0.006 0.034 0.034 - 0
17 Linux  0:00:00  0.000  0.159 0.007 0.060 0.061 - 1
18 Linux  0:00:00  0.000  0.129 0.007 0.021 0.025 1872 9
19 Linux  0:00:00  0.000  0.148 0.007 0.023 0.024 - 1
20 Linux  0:00:00  0.000  0.227 0.007 0.060 0.061 - 0
21 Linux  0:00:00  0.000  0.133 0.007 0.025 0.039 2412 33
22 Linux  0:00:00  0.000  0.127 0.007 0.028 0.037 2250 20
23 Linux  0:00:00  0.000  0.221 0.007 0.062 0.071 2334 21
24 Linux  0:00:00  0.000  0.235 0.007 0.055 0.056 5257 4
25 Linux  0:00:00  0.000  0.134 0.007 0.022 0.047 3603 88
26 Linux  0:00:00  0.000  0.092 0.008 0.016 0.016 - 1
27 Linux  0:00:00  0.000  0.109 0.008 0.038 0.041 2148 7
28 Linux  0:00:00  0.000  0.223 0.008 0.059 0.070 2011 22
29 unknown  0:00:00  0.000  0.194 0.008 0.018 0.025 2016 12
30 unknown  0:00:00  0.000  0.221 0.008 0.035 0.036 - 0
31 unknown  0:00:00  0.000  0.188 0.008 0.018 0.034 2066 31
32 Linux  0:00:00  0.000  0.204 0.008 0.052 0.052 - 1
33 unknown  0:00:00  0.000  0.181 0.008 0.020 0.268 3113 773
34 Linux  0:00:00  0.000  0.193 0.008 0.021 0.021 29155 2
35 unknown  0:00:00  0.000  0.193 0.008 0.020 0.075 2648 148
36 Linux  0:00:00  0.000  0.195 0.008 0.018 0.018 15019 4
37 unknown  0:00:00  0.000  0.232 0.008 0.040 0.040 - 0
38 unknown  0:00:00  0.000  0.197 0.008 0.041 0.041 20672 1
39 Linux  0:00:00  0.000  0.185 0.008 0.025 0.031 1469 8
40 Linux  0:00:00  0.000  0.206 0.008 0.029 0.029 17566 3
41 Linux  0:00:00  0.000  0.201 0.008 0.049 0.049 - 0
42 unknown  0:00:00  0.000  0.195 0.008 0.021 0.061 3197 128
43 unknown  0:00:00  0.000  0.226 0.008 0.021 0.021 18170 5
44 unknown  0:00:00  0.000  0.189 0.008 0.020 0.168 2663 393
45 Linux  0:00:00  0.000  0.188 0.008 0.030 0.030 - 0
46 unknown  0:00:00  0.000  0.200 0.008 0.030 0.036 1611 9
47 unknown  0:00:00  0.000  0.201 0.008 0.047 0.052 1054 6
48 unknown  0:00:00  0.000  0.202 0.008 0.021 0.027 2332 14
49 Linux  0:00:00  0.000  0.203 0.008 0.027 0.027 31537 2
50 Linux  0:00:00  0.000  0.190 0.009 0.043 0.073 2631 79
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Report from 23-Sep-2017 14:00 till 24-Sep-2017 13:55

Generated on 24-Sep-2017 14:01

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.