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
44.190.5.123 97.1 A -3.531 1.558 55.984 1.581 1.000 60
199.182.221.110 gotroot.ca 96.6 A -3.923 2.181 52.209 1.725 1.000 60
107.191.55.233 hojmark.net 96.5 A -3.440 2.047 32.219 2.430 1.000 61
23.133.168.246 96.5 A -0.284 1.628 27.708 1.780 0.966 57
209.94.190.139 c1d.net 96.5 A -3.351 3.279 18.475 1.577 1.000 60
159.203.82.102 96.4 A -3.893 2.422 40.016 1.956 1.000 59
144.217.4.129 funfile.org 96.4 A 0.410 2.573 39.080 2.796 0.983 59
74.208.14.149 pbiaas.com 96.3 A -3.662 1.989 23.936 2.542 1.000 61
45.83.234.123 freedominter.net 96.3 A -3.087 1.790 117.388 1.727 0.983 58
23.150.41.123 rozint.net 96.3 A -3.376 1.572 23.640 1.679 0.983 59
23.111.186.186 clearnet.pw 96.2 A 1.725 1.732 45.952 1.386 0.966 57
23.133.168.247 96.0 A -0.073 3.367 27.456 1.635 0.966 57
207.34.48.31 incentre.net 96.0 A -2.750 1.723 42.507 2.378 0.983 58
193.29.63.226 ntp.li 95.8 A -3.479 1.333 10.512 1.202 0.966 57
173.198.243.126 zia.io 95.8 A 4.142 2.908 35.346 1.170 0.983 58
129.146.193.200 maxhost.io 95.5 A -0.445 1.743 54.760 1.990 0.950 57
66.118.228.14 lshiy.com 95.5 A -4.070 2.870 181.175 3.104 1.000 60
4.7.252.53 95.5 A -3.460 3.081 41.500 1.920 0.983 58
134.215.155.177 tds.net 95.4 A -3.433 1.735 16.728 1.704 0.967 58
162.159.200.1 cloudflare.com 95.4 A -3.329 1.957 11.596 1.568 0.967 58
66.118.231.14 lshiy.com 95.3 A -3.727 2.655 181.132 3.860 1.000 61
216.66.48.42 ecansol.net 95.2 A 0.049 2.645 47.848 5.005 0.983 59
142.4.192.253 ip-142-4-192.net 95.0 A 0.429 2.433 38.446 3.834 0.966 57
196.44.136.165 ipb.na 95.0 A 3.256 2.751 253.112 4.649 1.000 60
198.46.254.130 koehn.com 94.9 A 0.409 1.734 36.351 2.963 0.949 56
162.159.200.123 cloudflare.com 94.8 A -3.135 2.067 11.145 1.175 0.950 57
96.231.54.40 verizon.net 94.7 A -2.781 1.653 33.183 1.889 0.950 57
216.6.2.70 94.7 A 0.382 5.626 40.751 5.034 1.000 60
66.118.230.14 lshiy.com 94.5 A -3.622 2.517 181.042 3.906 0.983 58
204.2.134.173 94.3 A -4.036 1.730 60.517 1.676 0.949 56
198.137.202.32 kjsl.com 94.2 A -3.687 1.931 56.047 2.000 0.950 57
138.68.201.49 fart.website 94.2 A -2.982 1.496 56.457 1.199 0.932 55
51.81.226.229 ip-51-81-226.us 94.2 A 4.059 1.705 74.637 1.963 0.950 57
144.202.41.38 vultrusercontent.com 94.2 A -1.825 2.083 50.695 1.541 0.932 55
199.68.201.234 in-addr.arpa 94.0 A -1.797 2.154 66.471 1.942 0.932 55
216.232.132.102 telus.net 94.0 A -2.996 1.994 58.064 4.191 0.966 57
141.11.89.193 ntp.li 94.0 A -0.504 1.807 33.696 1.567 0.917 55
72.38.129.202 digibase.ca 94.0 A -3.076 3.168 35.196 3.395 0.967 58
23.133.168.245 93.9 A -0.018 2.097 27.232 1.709 0.915 54
99.28.14.242 sbcglobal.net 93.8 A -2.883 3.027 18.601 3.898 0.967 58
12.205.28.193 gravinoc.com 93.8 A -3.190 1.988 40.325 1.442 0.933 56
23.95.49.216 koehn.com 93.8 A 1.930 1.809 74.198 2.338 0.932 55
41.205.142.133 ipb.na 93.5 A 1.057 2.675 252.109 4.514 0.950 57
174.142.148.226 hungrycats.org 93.4 A -1.207 1.772 34.315 2.048 0.915 54
23.150.40.242 frumentum.media 93.2 A -4.111 2.165 23.477 1.787 0.932 55
23.186.168.123 maxhost.io 93.2 A -2.970 4.456 62.519 3.998 0.966 57
23.133.168.244 93.1 A 0.002 2.847 27.085 1.251 0.900 54
206.108.0.131 torix.ca 93.1 A -3.523 1.712 48.696 1.321 0.917 55
158.51.99.19 ntp.li 92.7 A- -3.635 1.764 12.096 1.692 0.915 54
206.108.0.132 torix.ca 92.7 A- -3.492 1.636 48.846 1.977 0.917 55
45.79.35.159 clearnet.pw 92.5 A- -9.321 1.811 48.437 1.194 0.950 57
199.101.96.52 92.5 A- -4.979 1.811 31.326 1.327 0.917 55
5.161.111.190 your-server.de 92.4 A- -4.789 1.708 31.466 1.464 0.915 54
204.2.134.172 92.2 A- -3.855 1.223 60.573 1.431 0.900 54
149.56.19.163 fsck.ca 92.2 A- 0.657 2.433 38.800 4.312 0.917 55
65.100.46.166 qwest.net 92.1 A- -3.261 2.024 60.987 1.557 0.900 54
216.197.156.83 nyy.ca 92.0 A- -8.893 1.958 66.540 2.303 0.950 57
206.108.0.133 torix.ca 91.6 A- -3.335 1.540 48.443 0.837 0.881 52
173.255.255.133 clearnet.pw 91.6 A- -8.111 2.331 77.400 1.856 0.932 55
50.205.57.38 91.1 A- -3.875 1.731 34.205 1.455 0.883 53
142.202.190.19 ns4v.icu 91.0 A- -3.233 1.725 54.758 2.146 0.883 53
196.44.136.162 iway.na 90.7 A- -0.239 4.826 252.878 5.387 0.915 54
15.204.87.223 maxhost.io 90.7 A- 11.367 1.750 74.590 1.658 0.933 56
41.205.143.146 ipb.na 90.6 A- -2.376 4.599 252.594 4.386 0.915 54
23.186.168.125 maxhost.io 90.6 A- -2.736 3.922 63.835 6.191 0.933 56
216.197.228.230 zaf.ca 90.4 A- -8.645 2.808 64.799 3.296 0.932 55
216.232.132.95 telus.net 90.2 A- -3.732 1.976 58.675 4.617 0.900 54
141.11.228.173 ntp.li 90.0 A- -0.635 2.159 34.544 2.166 0.850 51
216.128.178.20 hojmark.net 89.5 B+ -3.133 5.455 28.793 6.886 0.933 56
198.137.202.56 kjsl.com 89.3 B+ 1.438 14.857 55.885 1.754 0.932 55
208.113.130.146 glypnod.com 89.1 B+ -2.994 4.221 27.806 2.288 0.864 51
50.218.103.254 88.3 B+ -4.676 1.905 34.261 1.182 0.833 50
104.234.61.117 ntp.li 88.0 B+ -3.510 1.784 50.067 2.437 0.831 49
23.186.168.126 maxhost.io 87.8 B+ -3.063 4.378 63.766 6.372 0.883 53
23.186.168.130 87.4 B+ -3.497 2.808 62.279 3.103 0.833 50
23.186.168.131 82.4 B- -3.081 3.215 62.570 4.083 0.750 45
148.135.119.56 lonet.org 73.8 C 1.435 2.389 77.212 3.214 0.583 35
198.50.127.72 leaseweb.net 55.3 F 4.791 79.954 34.339 1.924 0.867 52
74.208.25.46 0.0 F -49.515 133.413 23.056 1.343 0.898 53