CRL sites ordered by average bytes/s 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 F5 BIG-IP  0:00:00  36.780  0.489 0.392 0.749 1.023 15 4
2 F5 BIG-IP  0:00:00  37.565  0.479 0.452 0.939 0.953 - 0
3 FreeBSD  0:00:00  0.000  0.913 0.255 0.497 0.882 33 13
4 unknown  0:00:00  1.832  1.695 0.493 0.983 0.999 - 1
5 unknown  0:00:00  1.046  1.076 0.406 0.789 3.137 59 138
6 F5 BIG-IP  0:00:00  0.000  0.533 0.104 0.215 0.320 60 6
7 F5 BIG-IP  1:29:37  54.450  0.241 0.083 0.167 0.251 110 9
8 F5 BIG-IP  0:00:00  0.000  0.467 0.213 0.428 1.501 154 166
9 Windows Server 2003  0:00:00  0.000  0.267 0.091 0.183 2.180 158 315
10 F5 BIG-IP  0:00:00  0.000  0.460 0.199 0.400 1.407 165 166
11 unknown  0:00:00  0.000  0.956 0.090 0.183 0.491 186 57
12 unknown  0:00:00  0.000  0.545 0.224 0.460 1.306 196 166
13 F5 BIG-IP  0:00:00  0.000  0.352 0.078 0.157 0.536 205 78
14 Linux  0:00:00  1.571  0.423 0.108 0.211 2.917 208 563
15 Linux  0:00:00  0.000  0.222 0.093 0.186 0.553 271 99
16 Linux  0:00:00  0.000  0.228 0.095 0.191 0.481 343 99
17 Linux  0:00:00  4.843  0.700 0.011 0.067 0.068 - 0
18 unknown  7:29:09  74.476  0.206 0.058 0.117 12.053 748 8925
19 Linux  0:00:00  3.665  0.560 0.011 0.101 0.101 - 0
20 Linux  0:00:00  3.665  0.532 0.012 0.029 0.029 - 0
21 unknown  0:00:00  0.000  0.388 0.072 0.159 0.478 967 309
22 Linux  0:00:00  0.000  0.663 0.005 0.166 0.288 975 119
23 Linux  0:00:00  0.000  0.425 0.103 0.219 0.219 - 1
24 Linux  0:00:00  0.131  0.498 0.219 0.454 0.455 1426 2
25 Linux  0:00:00  0.000  0.456 0.004 0.052 0.061 1448 13
26 Linux  0:00:00  0.000  0.757 0.004 0.047 0.089 1952 81
27 Linux  0:00:00  0.000  0.762 0.004 0.034 0.061 2092 56
28 unknown  0:00:00  0.654  1.506 0.406 0.864 0.865 - 1
29 Linux  0:00:00  0.000  0.435 0.007 0.056 0.103 2577 121
30 Linux  0:00:00  0.000  0.310 0.048 0.099 0.373 2861 785
31 unknown  0:00:00  0.000  0.302 0.007 0.048 0.056 4081 30
32 unknown  0:00:00  0.000  0.305 0.007 0.018 0.025 4518 33
33 Linux  0:00:00  0.000  0.506 0.014 0.096 0.392 6032 1783
34 Linux  0:00:00  0.000  0.335 0.012 0.030 0.031 - 1
35 unknown  0:00:00  0.000  0.399 0.007 0.038 0.046 6471 54
36 Linux  0:00:00  0.000  0.704 0.012 0.124 0.124 - 0
37 unknown  0:00:00  0.000  0.298 0.007 0.015 0.023 6908 55
38 Solaris 9/10  0:00:00  0.000  0.815 0.192 0.371 0.371 - 0
39 Linux  0:00:00  0.000  0.334 0.011 0.038 0.038 - 1
40 Linux  0:00:00  0.000  0.402 0.011 0.124 0.124 - 1
41 unknown  0:00:00  0.000  0.305 0.007 0.015 0.024 9603 87
42 Linux  0:00:00  0.000  0.300 0.007 0.015 0.025 9677 89
43 Linux  0:00:00  0.000  0.271 0.039 0.078 0.078 12293 1
44 Linux  0:00:00  0.000  0.277 0.039 0.078 0.078 12315 1
45 Windows Server 2003  0:00:00  0.000  0.350 0.037 0.077 0.077 - 1
46 Linux  0:00:00  0.000  0.289 0.039 0.078 0.078 13166 1
47 Windows Server 2003  0:00:00  0.000  0.352 0.037 0.077 0.078 - 1
48 Linux  0:00:00  0.000  0.330 0.011 0.034 0.035 13279 20
49 Linux  0:00:00  0.000  0.274 0.039 0.078 0.078 13318 1
50 unknown  0:00:00  0.000  0.347 0.037 0.078 0.078 - 1
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Report from 23-Feb-2019 03:52 till 24-Feb-2019 03:46

Generated on 24-Feb-2019 03:55

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.