CRL sites ordered by average first byte time 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 unknown  23:46:58  100.000  - - - - - -
2 F5 BIG-IP  23:46:43  100.000  - - - - - -
3 Windows Server 2003  23:46:21  100.000  - - - - - -
4 Windows 2000  23:46:38  100.000  - - - - - -
5 FreeBSD  23:46:22  100.000  - - - - - -
6 unknown  23:46:43  100.000  - - - - - -
7 Linux  23:36:24  100.000  - - - - - -
8 F5 BIG-IP  23:46:21  100.000  - - - - - -
9 Linux  23:46:13  100.000  - - - - - -
10 Linux  23:44:56  100.000  - - - - - -
11 Linux  23:46:38  100.000  - - - - - -
12 unknown  23:46:41  100.000  - - - - - -
13 Linux  23:46:41  100.000  - - - - - -
14 F5 BIG-IP  23:46:20  100.000  - - - - - -
15 F5 BIG-IP  23:46:21  100.000  - - - - - -
16 Linux  23:45:00  100.000  - - - - - -
17 unknown  0:00:00  0.000  0.227 0.004 0.011 0.011 - 0
18 Linux  0:00:00  0.916  0.355 0.007 0.017 0.017 44402 3
19 Linux  0:00:00  0.000  0.352 0.009 0.018 0.018 - 1
20 unknown  0:00:00  0.000  0.359 0.009 0.022 0.022 14213 3
21 unknown  0:00:00  0.000  0.350 0.010 0.022 0.030 5903 48
22 unknown  0:00:00  0.131  0.370 0.009 0.022 0.036 5918 80
23 unknown  0:00:00  0.000  0.377 0.008 0.023 0.023 - 1
24 unknown  0:00:00  0.000  0.369 0.007 0.023 0.032 3280 29
25 unknown  0:00:00  0.000  0.355 0.007 0.024 0.025 22021 10
26 Linux  0:00:00  0.131  0.621 0.009 0.024 0.025 3681 3
27 Linux  0:00:00  0.000  0.349 0.010 0.025 0.036 7075 72
28 unknown  0:00:00  0.000  0.457 0.008 0.026 0.026 - 1
29 unknown  0:00:00  0.131  0.339 0.007 0.027 0.079 11571 597
30 Linux  0:00:00  0.000  0.372 0.009 0.028 0.028 39007 1
31 unknown  0:00:00  0.000  0.377 0.007 0.028 0.029 32897 5
32 Linux  0:00:00  0.000  0.565 0.009 0.028 0.029 48186 4
33 Linux  0:00:00  0.000  0.569 0.009 0.029 0.029 - 1
34 Linux  0:00:00  0.000  0.604 0.006 0.029 0.029 - 1
35 unknown  0:00:00  1.180  0.363 0.007 0.030 0.030 - 1
36 Linux  0:00:00  0.000  0.356 0.007 0.030 0.030 - 1
37 Linux  0:00:00  0.000  0.621 0.006 0.031 0.032 20133 1
38 Linux  0:00:00  0.786  0.383 0.011 0.032 0.032 - 0
39 Linux  0:00:00  0.000  0.362 0.007 0.032 0.032 - 1
40 Linux  0:00:00  0.000  0.483 0.008 0.032 0.032 - 1
41 unknown  0:00:00  0.000  0.378 0.010 0.033 0.033 - 0
42 Linux  0:00:00  0.000  0.370 0.007 0.033 0.033 - 0
43 unknown  0:00:00  0.000  0.369 0.009 0.037 0.037 - 1
44 Linux  0:00:00  0.000  0.359 0.009 0.039 0.039 - 0
45 Linux  0:00:00  1.048  0.367 0.010 0.039 0.039 - 1
46 Linux  0:00:00  0.000  0.374 0.007 0.040 0.040 - 1
47 Linux  0:00:00  3.539  0.362 0.008 0.044 0.044 - 0
48 unknown  0:00:00  0.000  0.340 0.007 0.044 0.044 - 0
49 unknown  0:00:00  0.000  0.387 0.007 0.045 0.045 - 1
50 unknown  0:00:00  0.000  0.356 0.009 0.046 0.046 4976 1
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Report from 23-Apr-2019 02:57 till 24-Apr-2019 02:50

Generated on 24-Apr-2019 02:59

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.