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  0.000  0.272 0.106 0.213 1.714 130 195
2 Windows Server 2012  0:00:00  0.000  0.380 0.075 0.153 0.153 20923 1
3 unknown  23:45:18  100.000  - - - - - -
4 Linux  0:00:00  0.000  0.527 0.004 0.032 0.032 - 1
5 Linux  0:00:00  0.000  0.370 0.098 0.196 0.196 - 0
6 Linux  0:00:00  0.150  0.338 0.198 0.397 0.397 75200 2
7 F5 BIG-IP  5:19:43  72.864  0.555 0.192 0.388 0.388 - 0
8 Linux  0:00:00  0.000  0.645 0.006 0.160 0.273 1052 119
9 unknown  0:00:00  0.000  0.288 0.007 0.055 0.055 - 1
10 Linux  0:00:00  0.000  0.443 0.005 0.065 0.065 84825 2
11 Linux  0:00:00  0.000  0.535 0.004 0.037 0.037 22642 1
12 F5 BIG-IP  23:51:30  100.000  - - - - - -
13 unknown  0:00:00  0.000  0.280 0.005 0.024 0.029 6114 31
14 Linux  0:00:00  0.000  0.270 0.005 0.012 0.018 8510 50
15 Linux  0:00:00  0.000  0.270 0.005 0.019 0.020 31663 5
16 Linux  0:00:00  0.000  0.277 0.005 0.044 0.044 - 0
17 Linux  0:00:00  0.150  0.279 0.005 0.026 0.026 - 0
18 unknown  0:00:00  0.000  0.271 0.005 0.046 0.053 7391 47
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  0.274 0.005 0.052 0.052 - 0
25 Linux  0:00:00  0.000  0.272 0.005 0.023 0.023 - 0
26 Linux  0:00:00  0.000  0.287 0.005 0.029 0.029 - 0
27 Linux  0:00:00  0.000  0.793 0.188 0.377 0.377 - 1
28 Linux  23:51:29  100.000  - - - - - -
29 Linux  0:00:00  0.000  0.284 0.006 0.069 0.069 - 1
30 FreeBSD  0:00:00  0.000  0.938 0.267 0.505 0.748 36 9
31 unknown  0:00:00  0.000  0.269 0.005 0.011 0.049 18464 694
32 Linux  0:00:00  0.150  0.272 0.007 0.021 0.029 9815 81
33 unknown  0:00:00  0.000  0.272 0.005 0.100 0.101 30115 14
34 unknown  0:00:00  0.000  0.273 0.005 0.011 0.011 - 1
35 unknown  0:00:00  0.000  0.279 0.005 0.025 0.025 - 1
36 Linux  0:00:00  0.000  0.277 0.005 0.048 0.048 - 1
37 unknown  0:00:00  0.000  0.552 0.243 0.478 0.922 122 54
38 F5 BIG-IP  0:00:00  0.150  0.681 0.184 0.368 0.368 - 0
39 F5 BIG-IP  23:51:28  100.000  - - - - - -
40 F5 BIG-IP  0:00:00  0.150  0.697 0.184 0.369 0.369 - 1
41 F5 BIG-IP  23:51:27  100.000  - - - - - -
42 unknown  0:00:00  0.000  0.281 0.005 0.033 0.033 28592 1
43 Linux  0:00:00  0.000  0.269 0.005 0.016 0.016 - 1
44 unknown  0:00:00  0.299  0.806 0.281 0.591 0.591 - 1
45 F5 BIG-IP  23:51:28  100.000  - - - - - -
46 F5 BIG-IP  23:51:28  100.000  - - - - - -
47 Linux  0:00:00  0.000  0.563 0.009 0.021 0.021 - 1
48 Linux  0:00:00  0.000  0.171 0.004 0.010 0.010 - 0
49 Windows Server 2003  23:51:28  100.000  - - - - - -
50 Linux  23:51:28  100.000  - - - - - -
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Report from 16-Sep-2019 17:05 till 17-Sep-2019 17:03

Generated on 17-Sep-2019 17:08

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.