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  0.302 0.108 0.216 2.467 127 285
2 Windows Server 2012  0:00:00  0.000  0.403 0.076 0.156 0.156 20426 1
3 unknown  23:54:47  100.000  - - - - - -
4 Linux  0:00:00  0.000  0.494 0.006 0.037 0.037 - 1
5 Linux  0:00:00  0.000  0.398 0.102 0.205 0.205 - 0
6 Linux  0:00:00  0.000  0.389 0.206 0.413 0.414 89800 2
7 F5 BIG-IP  0:00:00  34.731  0.468 0.322 0.711 0.718 - 0
8 Linux  0:00:00  0.000  0.629 0.006 0.197 0.317 991 119
9 unknown  0:00:00  0.000  0.312 0.006 0.062 0.062 - 1
10 Linux  0:00:00  0.000  0.455 0.007 0.072 0.072 156545 2
11 Linux  0:00:00  0.000  0.560 0.006 0.032 0.032 18561 1
12 F5 BIG-IP  0:00:00  0.000  0.235 0.089 0.179 0.179 - 1
13 unknown  0:00:00  0.000  0.321 0.007 0.016 0.023 4583 30
14 unknown  0:00:00  0.000  0.341 0.007 0.015 0.022 6729 49
15 unknown  0:00:00  0.000  0.310 0.008 0.021 0.021 33274 5
16 Linux  0:00:00  0.000  0.313 0.008 0.044 0.044 - 0
17 Linux  0:00:00  0.000  0.337 0.007 0.023 0.023 - 0
18 unknown  0:00:00  0.597  0.328 0.007 0.076 0.084 5128 38
19 unknown  0:00:00  0.000  0.320 0.007 0.025 0.025 - 1
20 Linux  0:00:00  0.000  0.329 0.007 0.048 0.049 - 1
21 Linux  0:00:00  0.000  0.330 0.006 0.028 0.028 - 1
22 Linux  0:00:00  0.000  0.328 0.007 0.047 0.047 - 0
23 Linux  23:45:01  100.000  - - - - - -
24 Linux  0:00:00  0.000  0.320 0.007 0.037 0.037 - 0
25 Linux  0:00:00  0.000  0.318 0.007 0.034 0.034 - 0
26 Linux  0:00:00  0.000  0.323 0.007 0.028 0.028 - 0
27 Linux  0:00:00  0.000  0.828 0.186 0.375 0.375 - 1
28 Linux  23:46:12  100.000  - - - - - -
29 Linux  0:00:00  0.000  0.322 0.006 0.065 0.065 - 1
30 FreeBSD  0:00:00  0.000  0.981 0.247 0.484 0.835 32 11
31 unknown  0:00:00  0.000  0.310 0.007 0.014 0.050 17100 615
32 Linux  0:00:00  0.000  0.314 0.007 0.015 0.023 8923 76
33 unknown  0:00:00  0.149  0.314 0.007 0.055 0.056 29016 13
34 unknown  0:00:00  0.000  0.336 0.006 0.014 0.014 - 1
35 unknown  0:00:00  0.896  0.318 0.006 0.022 0.022 - 1
36 unknown  0:00:00  0.000  0.321 0.006 0.041 0.041 - 1
37 unknown  0:00:00  1.642  0.666 0.227 0.468 1.152 172 118
38 F5 BIG-IP  0:00:00  0.000  0.707 0.182 0.365 0.365 - 0
39 F5 BIG-IP  23:46:18  100.000  - - - - - -
40 F5 BIG-IP  0:00:00  0.000  0.707 0.182 0.365 0.365 - 1
41 F5 BIG-IP  23:46:19  100.000  - - - - - -
42 unknown  0:00:00  0.000  0.322 0.007 0.031 0.031 21464 1
43 Linux  0:00:00  0.000  0.323 0.007 0.015 0.015 - 1
44 unknown  0:00:00  0.746  1.260 0.446 0.839 0.840 - 1
45 F5 BIG-IP  0:00:00  0.000  0.304 0.093 0.190 0.190 - 1
46 F5 BIG-IP  23:46:19  100.000  - - - - - -
47 Linux  0:00:00  0.000  0.547 0.008 0.018 0.018 31459 3
48 unknown  0:00:00  0.000  0.194 0.004 0.009 0.009 - 0
49 Windows Server 2003  23:46:19  100.000  - - - - - -
50 Linux  23:46:20  100.000  - - - - - -
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Report from 26-May-2019 04:06 till 27-May-2019 04:06

Generated on 27-May-2019 04:11

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.