CRL sites ordered by OS 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  0.000  0.688 0.183 0.368 0.368 - 1
2 F5 BIG-IP  0:00:00  0.000  0.687 0.183 0.368 0.368 - 0
3 F5 BIG-IP  0:00:00  0.000  0.340 0.089 0.175 0.541 212 78
4 F5 BIG-IP  23:50:03  100.000  - - - - - -
5 F5 BIG-IP  23:50:03  100.000  - - - - - -
6 F5 BIG-IP  23:50:01  100.000  - - - - - -
7 F5 BIG-IP  0:00:00  1.048  0.370 0.097 0.198 0.198 - 1
8 F5 BIG-IP  2:08:21  69.760  0.636 0.204 0.409 0.410 2167 3
9 F5 BIG-IP  0:00:00  0.000  0.444 0.214 0.428 0.945 106 55
10 F5 BIG-IP  0:00:00  0.000  0.471 0.203 0.408 1.019 90 55
11 F5 BIG-IP  5:31:20  73.433  0.633 0.200 0.400 0.400 - 0
12 F5 BIG-IP  23:48:52  100.000  - - - - - -
13 F5 BIG-IP  23:49:52  100.000  - - - - - -
14 F5 BIG-IP  23:45:00  100.000  - - - - - -
15 F5 BIG-IP  23:50:01  100.000  - - - - - -
16 F5 BIG-IP  0:47:11  50.898  0.241 0.086 0.173 0.260 106 9
17 F5 BIG-IP  0:00:00  0.000  0.901 0.100 0.209 0.687 212 101
18 F5 BIG-IP  1:10:04  50.599  0.514 0.095 0.191 0.286 66 6
19 FreeBSD  0:00:00  0.150  0.927 0.274 0.515 0.821 32 10
20 HP ProCurve  0:00:00  0.000  0.382 0.078 0.168 0.698 583 309
21 Linux  0:00:00  0.000  0.268 0.011 0.023 0.023 - 0
22 Linux  0:00:00  0.000  0.356 0.005 0.031 0.032 - 1
23 Linux  23:50:00  100.000  - - - - - -
24 Linux  0:00:00  0.000  0.361 0.005 0.080 0.082 - 1
25 Linux  0:00:00  0.000  0.254 0.007 0.082 0.082 - 0
26 Linux  0:00:00  0.299  0.215 0.005 0.122 0.122 - 1
27 Linux  0:00:00  0.299  0.228 0.005 0.048 0.048 - 1
28 Linux  0:00:00  0.000  0.515 0.005 0.140 0.141 - 0
29 Linux  0:00:00  0.000  0.820 0.010 0.056 0.056 61331 3
30 Linux  0:00:00  0.000  0.272 0.005 0.013 0.013 - 1
31 Linux  0:00:00  0.449  0.273 0.005 0.080 0.080 - 1
32 Linux  0:00:00  0.000  0.273 0.005 0.035 0.035 - 0
33 Linux  0:00:00  0.150  0.278 0.005 0.045 0.045 - 0
34 Linux  23:50:00  100.000  - - - - - -
35 Linux  0:00:00  0.000  0.363 0.005 0.032 0.033 - 1
36 Linux  0:00:00  0.000  0.363 0.005 0.037 0.038 - 1
37 Linux  0:00:00  0.000  0.355 0.005 0.119 0.120 1486 1
38 Linux  0:00:00  0.000  0.213 0.045 0.209 0.209 28365 1
39 Linux  23:50:00  100.000  - - - - - -
40 Linux  0:00:00  0.000  0.829 0.009 0.049 0.085 1578 56
41 Linux  0:00:00  0.000  0.244 0.007 0.080 0.080 - 0
42 Linux  0:00:00  0.599  0.266 0.005 0.034 0.034 - 1
43 Linux  0:00:00  0.000  0.502 0.005 0.070 0.071 - 0
44 Linux  0:00:00  0.000  0.516 0.005 0.062 0.063 - 0
45 Linux  0:00:00  0.000  0.294 0.005 0.085 0.085 - 0
46 Linux  0:00:00  0.000  0.470 0.009 0.072 0.072 - 1
47 Linux  0:00:00  0.000  0.674 0.005 0.131 0.132 - 0
48 Linux  0:00:00  0.000  0.276 0.011 0.023 0.023 - 1
49 Linux  0:00:00  0.000  0.262 0.011 0.023 0.023 - 1
50 Linux  0:00:00  0.000  0.272 0.011 0.023 0.023 - 1
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Report from 15-Sep-2019 05:00 till 16-Sep-2019 04:52

Generated on 16-Sep-2019 05:03

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.