CRL sites ordered by average total http 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  16:31:48  89.501  0.186 0.052 0.105 12.698 710 8944
2 unknown  0:00:00  4.967  0.992 0.420 0.793 3.323 55 139
3 Linux  0:00:00  0.131  0.461 0.108 0.217 2.607 246 588
4 Windows Server 2003  0:00:00  0.131  0.287 0.087 0.175 2.021 168 309
5 F5 BIG-IP  0:00:00  0.000  0.480 0.207 0.416 1.513 137 150
6 F5 BIG-IP  0:00:00  0.131  0.491 0.199 0.399 1.448 144 150
7 unknown  0:00:00  0.000  0.572 0.224 0.461 1.264 187 150
8 FreeBSD  0:00:00  0.000  0.930 0.265 0.518 0.939 28 12
9 unknown  0:00:00  0.654  1.614 0.494 0.924 0.931 - 1
10 unknown  0:00:00  0.915  1.381 0.490 0.898 0.898 - 1
11 unknown  0:00:00  0.785  1.142 0.457 0.889 0.889 - 1
12 F5 BIG-IP  0:00:00  34.248  0.511 0.361 0.699 0.699 - 0
13 F5 BIG-IP  0:00:00  37.402  0.496 0.339 0.633 0.654 176 4
14 Linux  0:00:00  0.000  0.821 0.282 0.588 0.588 - 1
15 Linux  0:00:00  0.000  0.245 0.091 0.183 0.577 261 103
16 unknown  0:00:00  0.000  0.953 0.089 0.181 0.554 179 67
17 F5 BIG-IP  0:00:00  0.000  0.348 0.078 0.156 0.534 206 78
18 Linux  0:00:00  0.000  0.264 0.096 0.192 0.514 320 103
19 unknown  0:00:00  0.000  0.409 0.071 0.156 0.470 984 309
20 Linux  0:00:00  0.262  0.537 0.213 0.453 0.453 47341 2
21 unknown  0:00:00  0.000  0.506 0.217 0.436 0.437 - 1
22 Linux  0:00:00  0.000  0.864 0.196 0.415 0.415 - 1
23 Linux  0:00:00  0.000  0.491 0.206 0.414 0.414 - 1
24 Linux  0:00:00  0.000  0.373 0.204 0.410 0.410 80826 2
25 F5 BIG-IP  0:00:00  0.000  0.533 0.202 0.405 0.405 - 0
26 F5 BIG-IP  0:00:00  0.000  0.746 0.192 0.386 0.386 23134 1
27 F5 BIG-IP  0:00:00  0.000  0.747 0.192 0.386 0.386 - 0
28 Linux  0:00:00  0.000  0.550 0.018 0.080 0.384 5878 1783
29 Linux  0:00:00  0.000  0.328 0.048 0.096 0.370 2863 785
30 Linux  0:00:00  0.000  0.624 0.179 0.361 0.361 24855 2
31 Solaris 9/10  0:00:00  0.000  0.833 0.179 0.358 0.359 - 0
32 F5 BIG-IP  0:00:00  0.000  0.565 0.102 0.214 0.319 60 6
33 Linux  0:00:00  0.000  0.178 0.137 0.283 0.300 79 1
34 Linux  0:00:00  0.000  0.521 0.105 0.213 0.297 271 23
35 Linux  0:00:00  0.000  0.340 0.135 0.270 0.270 - 1
36 Linux  0:00:00  0.654  0.700 0.005 0.158 0.262 1154 119
37 Linux  0:00:00  0.000  0.189 0.126 0.253 0.253 21509 1
38 F5 BIG-IP  0:15:06  52.618  0.273 0.081 0.163 0.245 112 9
39 Linux  0:00:00  0.000  0.433 0.105 0.226 0.226 - 1
40 Linux  0:00:00  0.000  0.563 0.105 0.211 0.212 51868 2
41 unknown  0:00:00  3.543  0.429 0.097 0.197 0.197 - 1
42 Linux  0:00:00  0.000  0.394 0.012 0.182 0.183 14756 3
43 Linux  0:00:00  0.000  0.283 0.088 0.179 0.179 2066 1
44 Linux  0:00:00  0.000  0.244 0.085 0.176 0.177 5922 2
45 Linux  0:00:00  0.131  0.377 0.088 0.177 0.177 - 0
46 Linux  0:00:00  0.000  0.359 0.088 0.175 0.176 22283 11
47 unknown  0:00:00  0.000  0.365 0.085 0.172 0.172 - 1
48 Linux  0:00:00  0.000  0.392 0.012 0.166 0.166 16648 3
49 F5 BIG-IP  0:00:00  0.000  0.237 0.080 0.159 0.159 - 1
50 Linux  0:00:00  0.000  0.404 0.078 0.156 0.156 - 1
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Report from 25-Mar-2019 19:31 till 26-Mar-2019 19:24

Generated on 26-Mar-2019 19:36

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.