CRL sites ordered by failures over the last 1 day, updated every 15 mins. 305 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  0.436 0.003 0.032 0.032 - 1
2 unknown  0:00:00  0.000  0.187 0.004 0.011 0.011 - 0
3 Linux  0:00:00  0.000  0.649 0.004 0.052 0.099 1707 81
4 Linux  0:00:00  0.000  0.547 0.004 0.014 0.014 31376 7
5 Linux  0:00:00  0.000  0.650 0.004 0.036 0.064 2074 56
6 Linux  0:00:00  0.000  0.658 0.005 0.042 0.042 64058 3
7 Linux  0:00:00  0.000  0.519 0.005 0.024 0.024 56829 4
8 Linux  0:00:00  0.000  0.462 0.005 0.084 0.084 - 1
9 Linux  0:00:00  0.000  0.480 0.005 0.059 0.059 - 1
10 Linux  0:00:00  0.000  0.469 0.005 0.056 0.071 982 14
11 Linux  0:00:00  0.000  0.557 0.005 0.039 0.039 19792 1
12 Linux  0:00:00  0.000  0.520 0.006 0.019 0.019 - 1
13 Linux  0:00:00  0.000  0.507 0.006 0.080 0.080 - 0
14 unknown  0:00:00  0.000  0.383 0.006 0.017 0.017 - 1
15 Linux  0:00:00  0.000  0.335 0.006 0.056 0.056 25597 2
16 Linux  0:00:00  0.000  0.291 0.006 0.053 0.053 - 0
17 Linux  0:00:00  0.000  0.294 0.006 0.050 0.050 - 1
18 unknown  0:00:00  0.000  0.293 0.006 0.050 0.050 66954 2
19 Linux  0:00:00  0.000  0.549 0.006 0.021 0.021 - 1
20 Linux  0:00:00  0.000  0.304 0.007 0.021 0.021 - 1
21 Linux  0:00:00  0.000  0.303 0.007 0.053 0.053 28807 1
22 unknown  0:00:00  0.000  0.304 0.007 0.043 0.043 - 0
23 Linux  0:00:00  0.000  0.305 0.007 0.019 0.019 - 1
24 unknown  0:00:00  0.000  0.241 0.007 0.050 0.050 - 1
25 Linux  0:00:00  0.000  0.311 0.007 0.022 0.022 54772 3
26 Linux  0:00:00  0.000  0.303 0.007 0.015 0.015 - 1
27 unknown  0:00:00  0.000  0.309 0.007 0.018 0.018 31986 13
28 unknown  0:00:00  0.000  0.236 0.007 0.050 0.050 - 1
29 unknown  0:00:00  0.000  0.305 0.007 0.037 0.037 - 0
30 Linux  0:00:00  0.000  0.311 0.007 0.046 0.046 - 0
31 unknown  0:00:00  0.000  0.306 0.007 0.041 0.041 - 0
32 unknown  0:00:00  0.000  0.323 0.007 0.040 0.040 - 1
33 Linux  0:00:00  0.000  0.317 0.007 0.044 0.044 - 1
34 Linux  0:00:00  0.000  0.247 0.007 0.058 0.058 - 1
35 unknown  0:00:00  0.000  0.304 0.007 0.041 0.041 - 0
36 Linux  0:00:00  0.000  0.234 0.007 0.060 0.060 - 1
37 unknown  0:00:00  0.000  0.301 0.007 0.026 0.026 - 1
38 unknown  0:00:00  0.000  0.298 0.007 0.015 0.015 - 1
39 Linux  0:00:00  0.000  0.246 0.007 0.052 0.052 - 1
40 Linux  0:00:00  0.000  0.245 0.007 0.054 0.054 - 1
41 Linux  0:00:00  0.000  0.240 0.007 0.060 0.060 - 1
42 Linux  0:00:00  0.000  0.243 0.007 0.063 0.063 - 1
43 Linux  0:00:00  0.000  0.243 0.007 0.056 0.056 - 1
44 Linux  0:00:00  0.000  0.242 0.007 0.054 0.054 - 1
45 Linux  0:00:00  0.000  0.240 0.007 0.052 0.052 - 1
46 Linux  0:00:00  0.000  0.239 0.007 0.056 0.056 - 1
47 Linux  0:00:00  0.000  0.247 0.007 0.055 0.055 - 1
48 unknown  0:00:00  0.000  0.306 0.007 0.015 0.016 34297 16
49 Linux  0:00:00  0.000  0.317 0.007 0.036 0.036 - 1
50 Linux  0:00:00  0.000  0.243 0.007 0.057 0.057 - 1
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Report from 15-Feb-2019 22:16 till 16-Feb-2019 22:15

Generated on 16-Feb-2019 22:25

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.