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  23:49:42  100.000  - - - - - -
2 FreeBSD  23:41:06  100.000  - - - - - -
3 Linux  23:40:56  100.000  - - - - - -
4 Linux  23:47:07  100.000  - - - - - -
5 Linux  23:45:00  100.000  - - - - - -
6 Windows Server 2003  23:41:06  100.000  - - - - - -
7 F5 BIG-IP  23:52:16  100.000  - - - - - -
8 F5 BIG-IP  23:41:07  100.000  - - - - - -
9 F5 BIG-IP  23:41:11  100.000  - - - - - -
10 Linux  23:49:07  100.000  - - - - - -
11 Linux  23:52:23  100.000  - - - - - -
12 Linux  23:47:48  100.000  - - - - - -
13 Windows 2000  23:52:23  100.000  - - - - - -
14 unknown  23:49:59  100.000  - - - - - -
15 unknown  23:52:16  100.000  - - - - - -
16 F5 BIG-IP  23:41:11  100.000  - - - - - -
17 unknown  0:00:00  0.000  0.189 0.004 0.012 0.012 - 0
18 Linux  0:00:00  0.000  0.538 0.004 0.013 0.013 32161 7
19 Linux  0:00:00  0.000  0.304 0.007 0.015 0.015 - 1
20 unknown  0:00:00  0.000  0.298 0.007 0.015 0.015 - 1
21 Linux  0:00:00  0.000  0.292 0.007 0.015 0.015 35596 3
22 unknown  0:00:00  0.000  0.304 0.007 0.015 0.024 9609 87
23 unknown  0:00:00  0.000  0.297 0.007 0.015 0.023 6919 55
24 unknown  0:00:00  0.000  0.295 0.007 0.015 0.054 17042 657
25 Linux  0:00:00  0.000  0.299 0.007 0.015 0.025 9696 89
26 unknown  0:00:00  0.000  0.297 0.007 0.017 0.017 32745 13
27 Linux  0:00:00  0.000  0.503 0.004 0.017 0.017 - 1
28 unknown  0:00:00  0.000  0.304 0.007 0.017 0.018 36008 6
29 unknown  0:00:00  0.000  0.368 0.006 0.018 0.018 - 1
30 unknown  0:00:00  0.000  0.305 0.007 0.018 0.025 4519 33
31 Linux  0:00:00  0.000  0.294 0.007 0.018 0.018 - 1
32 Linux  0:00:00  0.000  0.295 0.007 0.018 0.018 - 1
33 Linux  0:00:00  0.000  0.494 0.004 0.019 0.019 57183 4
34 Linux  0:00:00  0.000  0.538 0.006 0.019 0.019 - 1
35 unknown  0:00:00  0.000  0.293 0.007 0.019 0.020 32098 12
36 Linux  0:00:00  0.000  0.300 0.007 0.020 0.020 - 1
37 Linux  0:00:00  0.000  0.296 0.007 0.021 0.021 - 1
38 Linux  0:00:00  0.000  0.299 0.007 0.022 0.022 - 1
39 Linux  0:00:00  0.000  0.303 0.007 0.022 0.022 49443 3
40 unknown  0:00:00  0.000  0.305 0.007 0.023 0.023 - 1
41 Linux  0:00:00  0.000  0.309 0.007 0.023 0.023 - 1
42 unknown  0:00:00  0.000  0.296 0.007 0.023 0.023 - 0
43 unknown  0:00:00  0.000  0.309 0.007 0.025 0.025 - 1
44 Linux  0:00:00  0.000  0.430 0.005 0.027 0.027 - 1
45 Linux  0:00:00  3.922  0.533 0.012 0.029 0.030 - 0
46 Linux  0:00:00  0.000  0.301 0.007 0.030 0.030 - 0
47 Linux  0:00:00  0.000  0.335 0.011 0.030 0.030 - 1
48 Linux  0:00:00  0.000  0.298 0.007 0.031 0.031 - 0
49 Linux  0:00:00  0.000  0.329 0.011 0.031 0.031 - 1
50 Linux  0:00:00  3.922  0.405 0.010 0.032 0.032 18079 3
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Report from 23-Feb-2019 04:07 till 24-Feb-2019 04:03

Generated on 24-Feb-2019 04:09

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.