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  1.050  0.551 0.059 0.118 0.118 - 1
2 Linux  0:00:00  1.180  0.501 0.009 0.055 0.055 - 1
3 Linux  0:00:00  1.180  0.538 0.059 0.120 0.120 - 1
4 Linux  0:00:00  1.180  0.563 0.081 0.142 0.142 1890 1
5 Linux  0:00:00  1.311  0.500 0.012 0.068 0.068 - 1
6 Linux  0:00:00  1.311  0.567 0.013 0.075 0.075 - 1
7 Linux  0:00:00  1.311  0.572 0.061 0.120 0.120 - 1
8 Linux  0:00:00  1.311  0.488 0.064 0.124 0.125 9050 1
9 Linux  0:00:00  1.311  0.544 0.069 0.139 0.139 - 1
10 Linux  0:00:00  1.442  0.645 0.009 0.092 0.093 5784 2
11 unknown  0:00:00  1.442  0.707 0.017 0.027 0.054 3910 107
12 Linux  0:00:00  1.442  0.746 0.022 0.088 0.088 23796 1
13 Linux  0:00:00  1.442  0.500 0.065 0.124 0.124 - 1
14 Linux  0:00:00  1.442  0.566 0.070 0.129 0.129 11866 1
15 F5 BIG-IP  0:00:00  1.442  0.444 0.102 0.226 0.226 160834 1
16 Linux  0:00:00  1.444  0.614 0.016 0.131 0.131 - 1
17 Linux  0:00:00  1.444  0.533 0.064 0.126 0.126 - 1
18 Linux  0:00:00  1.444  0.519 0.066 0.126 0.126 - 1
19 Linux  0:00:00  1.444  0.515 0.066 0.126 0.126 - 0
20 unknown  0:00:00  1.573  0.635 0.008 0.019 0.019 - 1
21 Linux  0:00:00  1.573  0.479 0.009 0.098 0.098 - 1
22 unknown  0:00:00  1.573  0.631 0.010 0.020 0.046 2866 74
23 Linux  0:00:00  1.573  0.591 0.012 0.050 0.050 26897 6
24 unknown  0:00:00  1.573  0.519 0.012 0.051 0.051 - 0
25 Linux  0:00:00  1.573  0.454 0.013 0.068 0.068 - 1
26 Linux  0:00:00  1.573  0.490 0.016 0.036 0.037 - 1
27 Linux  0:00:00  1.573  0.544 0.061 0.123 0.123 6768 1
28 Linux  0:00:00  1.573  0.454 0.068 0.127 0.127 - 1
29 Linux  0:00:00  1.573  0.467 0.070 0.130 0.130 - 1
30 Linux  0:00:00  1.573  0.482 0.083 0.145 0.145 - 1
31 Linux  0:00:00  1.575  0.561 0.060 0.121 0.123 6516 11
32 Linux  0:00:00  1.575  0.515 0.063 0.121 0.121 - 1
33 Linux  0:00:00  1.575  0.566 0.065 0.143 0.143 - 1
34 Linux  0:00:00  1.704  0.694 0.010 0.041 0.041 - 1
35 unknown  0:00:00  1.704  0.617 0.010 0.024 0.025 9008 8
36 Linux  0:00:00  1.704  0.478 0.010 0.075 0.075 - 1
37 Linux  0:00:00  1.704  0.481 0.010 0.059 0.059 - 1
38 Linux  0:00:00  1.704  0.502 0.010 0.067 0.067 - 1
39 Linux  0:00:00  1.704  0.778 0.012 0.128 0.129 1062 1
40 Linux  0:00:00  1.704  0.672 0.012 0.134 0.134 - 1
41 Linux  0:00:00  1.704  0.734 0.013 0.044 0.044 - 0
42 Linux  0:00:00  1.704  0.974 0.013 0.053 0.118 1260 81
43 Linux  0:00:00  1.704  0.433 0.014 0.067 0.067 - 1
44 Linux  0:00:00  1.704  0.478 0.014 0.062 0.062 - 1
45 Linux  0:00:00  1.704  0.614 0.014 0.034 0.034 - 1
46 Linux  0:00:00  1.704  0.680 0.015 0.133 0.134 785 1
47 unknown  0:00:00  1.704  0.473 0.015 0.064 0.064 - 1
48 Linux  0:00:00  1.704  0.434 0.060 0.121 0.121 - 0
49 Linux  0:00:00  1.704  0.498 0.061 0.120 0.120 - 1
50 Linux  0:00:00  1.704  0.508 0.062 0.123 0.123 - 1
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Report from 20-Nov-2018 10:35 till 21-Nov-2018 10:28

Generated on 21-Nov-2018 10:41

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 New York/New York Internet-2, Italy/Aruba-2, Pennsylvania/INetU-3, Amsterdam/Webair-2, US West/Azure, Singapore/DigitalOcean, Ireland/Amazon and Zurich/vXtream-2. 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.