CRL sites ordered by site name 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 Windows Server 2003  0:00:00  0.150  0.266 0.107 0.213 2.067 119 221
2 Windows Server 2012  0:00:00  0.000  0.371 0.073 0.150 0.150 18545 1
3 unknown  23:34:21  100.000  - - - - - -
4 Linux  0:00:00  0.000  0.536 0.004 0.024 0.024 - 1
5 Linux  0:00:00  0.000  0.358 0.096 0.193 0.193 - 0
6 Linux  0:00:00  0.000  0.334 0.195 0.391 0.391 64405 2
7 F5 BIG-IP  0:15:09  34.970  0.707 0.292 0.583 0.583 - 0
8 Linux  0:00:00  0.000  0.643 0.004 0.167 0.268 1190 119
9 unknown  0:00:00  0.000  0.295 0.006 0.042 0.042 - 1
10 Linux  0:00:00  0.000  0.438 0.006 0.060 0.060 99488 2
11 Linux  0:00:00  0.000  0.548 0.004 0.030 0.030 24739 1
12 F5 BIG-IP  23:48:06  100.000  - - - - - -
13 unknown  0:00:00  0.000  0.279 0.006 0.022 0.027 5399 30
14 Linux  0:00:00  0.000  0.305 0.006 0.017 0.023 7859 50
15 Linux  0:00:00  0.000  0.280 0.006 0.026 0.026 34126 5
16 Linux  0:00:00  0.000  0.302 0.006 0.032 0.032 - 0
17 Linux  0:00:00  0.000  0.298 0.006 0.025 0.025 - 0
18 unknown  0:00:00  0.000  0.290 0.006 0.040 0.046 7007 45
19 Linux  23:45:00  100.000  - - - - - -
20 Linux  23:45:00  100.000  - - - - - -
21 Linux  23:45:00  100.000  - - - - - -
22 unknown  23:45:00  100.000  - - - - - -
23 Linux  23:45:00  100.000  - - - - - -
24 unknown  0:00:00  0.000  0.285 0.006 0.031 0.031 - 0
25 Linux  0:00:00  0.000  0.295 0.006 0.024 0.024 - 0
26 Linux  0:00:00  0.000  0.293 0.006 0.028 0.028 - 0
27 Linux  0:00:00  0.000  0.784 0.185 0.382 0.383 - 1
28 Linux  23:48:11  100.000  - - - - - -
29 Linux  0:00:00  0.000  0.284 0.006 0.041 0.041 - 1
30 FreeBSD  0:00:00  0.000  0.925 0.253 0.498 0.818 32 10
31 unknown  0:00:00  0.000  0.295 0.006 0.012 0.049 18539 686
32 Linux  0:00:00  0.000  0.295 0.006 0.017 0.025 10384 81
33 unknown  0:00:00  0.000  0.296 0.006 0.043 0.043 30614 14
34 unknown  0:00:00  0.000  0.289 0.006 0.017 0.017 - 1
35 unknown  0:00:00  0.000  0.283 0.006 0.022 0.022 - 1
36 Linux  0:00:00  0.000  0.294 0.006 0.039 0.039 - 1
37 unknown  0:00:00  0.897  0.548 0.222 0.460 0.907 150 67
38 F5 BIG-IP  0:00:00  0.000  0.696 0.183 0.367 0.367 - 0
39 F5 BIG-IP  23:50:01  100.000  - - - - - -
40 F5 BIG-IP  0:00:00  0.000  0.696 0.183 0.367 0.367 - 1
41 F5 BIG-IP  23:48:08  100.000  - - - - - -
42 unknown  0:00:00  0.000  0.277 0.006 0.030 0.030 36592 1
43 Linux  0:00:00  0.000  0.286 0.006 0.017 0.017 - 1
44 unknown  0:00:00  0.149  0.830 0.277 0.545 0.545 - 1
45 F5 BIG-IP  23:48:26  100.000  - - - - - -
46 F5 BIG-IP  23:48:26  100.000  - - - - - -
47 Linux  0:00:00  0.000  0.553 0.010 0.022 0.022 - 1
48 Linux  0:00:00  0.000  0.191 0.004 0.009 0.009 - 0
49 Windows Server 2003  23:48:27  100.000  - - - - - -
50 Linux  23:48:27  100.000  - - - - - -
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Report from 21-Aug-2019 14:31 till 22-Aug-2019 14:26

Generated on 22-Aug-2019 14:34

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 and Ireland/Amazon. 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.