Time grades

The table below grades the cluster of time servers available in the North American NTP public pool. It represents the results of monitoring over the 24-hour interval ending at the timestamp in the navigation bar. To see historical data about a particular server, select its IP address. For information about how the scores are calculated, see the about page.

North American NTP Pool Time Server Grades (24-hours)
IP Domain Score Grade Offset
ms		 Jitter
ms		 RTD
ms		 s-RTD
ms		 Life N
141.11.89.193 ntp.li 99.1 A 0.171 0.823 32.465 0.889 1.000 62
174.142.148.226 hungrycats.org 99.0 A 0.310 1.044 32.698 0.779 1.000 58
54.39.196.172 netlinkify.com 98.4 A 1.898 0.845 36.063 0.824 1.000 60
148.113.194.34 netlinkify.com 98.4 A 1.868 0.794 36.085 1.015 1.000 60
198.46.254.130 koehn.com 98.1 A 0.358 1.397 36.008 2.138 1.000 59
44.190.5.123 98.0 A -2.811 0.921 54.616 0.950 1.000 58
162.159.200.1 cloudflare.com 98.0 A -3.071 0.898 9.911 0.825 1.000 62
159.203.82.102 97.8 A -2.874 1.277 38.423 1.029 1.000 60
23.133.168.246 97.4 A -0.179 0.930 25.952 0.898 0.967 58
207.34.48.31 incentre.net 97.4 A -4.398 0.940 41.047 0.931 1.000 58
206.108.0.133 torix.ca 97.3 A -2.828 0.737 47.731 0.783 0.983 57
208.113.130.146 glypnod.com 97.2 A -2.138 1.197 26.357 1.178 0.983 59
204.2.134.173 97.1 A -3.574 0.908 59.281 1.962 1.000 61
23.95.49.216 koehn.com 96.7 A 3.072 1.784 73.817 2.378 1.000 58
23.133.168.245 96.4 A -0.288 0.909 26.037 1.000 0.950 57
144.202.41.38 vultrusercontent.com 96.4 A -2.575 1.670 53.718 3.262 1.000 59
216.232.132.102 telus.net 96.2 A -2.766 0.947 55.028 1.127 0.966 56
75.67.85.23 comcast.net 96.2 A 1.630 2.308 47.164 2.497 0.983 59
142.4.192.253 ip-142-4-192.net 96.1 A 1.853 0.779 35.656 0.612 0.950 57
72.38.129.202 digibase.ca 96.1 A -2.265 1.692 32.053 2.639 0.984 60
23.150.40.242 96.0 A -3.565 0.917 22.121 0.932 0.966 56
196.44.136.162 iway.na 96.0 A 3.348 1.014 247.105 1.143 0.966 56
173.255.255.133 clearnet.pw 96.0 A -7.576 1.211 76.216 1.001 1.000 58
5.161.111.190 your-server.de 95.9 A -4.090 0.903 30.110 0.902 0.967 58
23.133.168.247 95.8 A -0.108 0.734 25.875 0.589 0.931 54
138.68.201.49 fart.website 95.7 A -2.465 2.010 55.724 1.478 0.966 56
74.208.14.149 pbiaas.com 95.7 A -2.902 0.726 21.764 0.752 0.951 58
141.11.228.173 ntp.li 95.7 A 0.176 1.098 32.385 0.901 0.934 57
107.191.55.233 hojmark.net 95.5 A -2.592 1.210 30.603 1.072 0.951 58
158.51.99.19 ntp.li 95.5 A -2.855 0.792 10.178 0.786 0.948 55
50.205.57.38 95.5 A -2.981 0.901 32.714 0.953 0.951 58
144.217.4.129 funfile.org 95.4 A 1.186 0.888 35.941 0.783 0.934 57
199.68.201.234 in-addr.arpa 95.3 A 0.508 1.770 64.264 0.603 0.931 54
216.6.2.70 95.2 A 1.783 0.657 38.178 0.681 0.931 54
149.56.19.163 fsck.ca 95.2 A 2.087 0.627 35.556 0.786 0.934 57
206.108.0.132 torix.ca 95.1 A -2.749 0.683 47.620 0.491 0.934 57
216.66.48.42 ecansol.net 94.9 A 0.787 1.499 50.071 1.616 0.934 57
23.133.168.244 94.9 A -0.279 0.954 26.039 0.887 0.918 56
50.218.103.254 94.9 A -5.099 1.065 32.892 0.514 0.951 58
45.83.234.123 freedominter.net 94.9 A -2.468 0.915 117.149 0.664 0.933 56
4.7.252.53 94.6 A -2.534 1.099 39.940 1.052 0.933 56
198.137.202.56 kjsl.com 94.6 A -2.758 1.118 54.582 1.009 0.933 56
199.182.221.110 gotroot.ca 94.6 A -3.668 0.874 50.149 0.566 0.933 56
173.198.243.126 zia.io 94.6 A 5.544 1.837 34.395 1.608 0.967 58
134.215.155.177 tds.net 94.5 A -2.510 1.359 15.169 1.148 0.934 57
23.186.168.123 maxhost.io 94.4 A -2.706 1.076 59.926 1.262 0.931 54
193.29.63.226 ntp.li 94.3 A -2.995 0.993 9.728 1.193 0.931 54
209.94.190.139 c1d.net 94.3 A -0.986 1.573 17.110 2.398 0.934 57
199.101.96.52 94.3 A -4.220 0.898 29.663 0.652 0.934 57
142.202.190.19 ns4v.icu 94.2 A -2.272 0.762 52.965 0.866 0.918 56
23.111.186.186 clearnet.pw 94.2 A 3.523 2.512 46.479 3.100 0.966 56
96.231.54.40 verizon.net 94.1 A -1.941 1.052 31.471 1.108 0.918 56
65.100.46.166 qwest.net 94.1 A -2.615 0.759 59.931 0.843 0.918 56
198.50.127.72 leaseweb.net 94.0 A 2.520 7.752 32.585 0.641 0.967 59
216.232.132.95 telus.net 93.8 A -3.544 0.947 54.632 0.662 0.918 56
23.186.168.130 93.7 A -2.747 1.130 59.759 1.126 0.918 56
66.118.228.14 lshiy.com 93.7 A -5.147 1.524 175.980 2.152 0.950 57
51.81.226.229 ip-51-81-226.us 93.6 A 5.396 1.355 73.874 2.350 0.951 58
216.197.156.83 nyy.ca 93.5 A -8.228 1.614 65.058 1.899 0.967 59
41.205.143.146 ipb.na 93.1 A 2.680 3.081 247.353 1.005 0.917 55
66.118.230.14 lshiy.com 93.0 A -4.959 1.725 175.593 1.888 0.933 56
196.44.136.165 ipb.na 93.0 A 4.464 1.633 247.133 0.998 0.918 56
162.159.200.123 cloudflare.com 92.9 A- -3.097 0.950 10.055 1.028 0.902 55
198.137.202.32 kjsl.com 92.7 A- -2.847 1.364 54.718 1.289 0.902 55
99.28.14.242 sbcglobal.net 92.6 A- -2.363 2.173 16.489 1.331 0.902 55
66.118.231.14 lshiy.com 92.4 A- -4.823 1.678 175.386 1.855 0.918 56
104.234.61.117 ntp.li 92.1 A- -2.767 0.801 48.277 1.068 0.883 53
41.205.142.133 ipb.na 92.0 A- 5.431 1.470 247.166 0.808 0.902 55
129.146.193.200 maxhost.io 91.7 A- -2.135 1.085 53.172 0.697 0.869 53
23.150.41.123 rozint.net 91.5 A- -2.869 0.876 21.995 0.607 0.869 53
148.135.119.56 lonet.org 91.5 A- 2.616 1.563 74.801 1.866 0.885 54
23.186.168.125 maxhost.io 91.0 A- -2.640 1.244 59.993 1.448 0.869 53
45.79.35.159 clearnet.pw 90.9 A- -7.326 1.397 47.854 2.891 0.918 56
23.186.168.126 maxhost.io 90.8 A- -2.769 1.345 60.010 1.653 0.869 53
204.2.134.172 90.6 A- -3.631 1.354 59.219 1.461 0.869 53
23.186.168.131 90.2 A- -2.709 1.223 59.897 1.330 0.852 52
15.204.87.223 maxhost.io 90.1 A- 12.856 1.392 73.970 1.919 0.934 57
216.197.228.230 zaf.ca 89.2 B+ -8.016 2.239 62.476 1.850 0.883 53
206.108.0.131 torix.ca 89.1 B+ -2.705 0.670 47.484 0.581 0.820 50
216.128.178.20 hojmark.net 87.9 B+ -3.763 5.185 27.369 6.821 0.902 55
12.205.28.193 gravinoc.com 60.3 D- -26.881 58.778 38.778 3.142 0.885 54
74.208.25.46 0.0 F -97.556 185.671 21.879 1.009 0.914 53