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Network Latency

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This grid displays the network latency of pings between each monitoring location in the Dotcom-Monitor cloud network. With over two dozen monitoring locations throughout the world, the Dotcom-Monitor network serves as a standard baseline for detecting trends in backbone latency communication issues as well as regional outages and slowdowns.

  Madrid Beijing Sydney Copenhagen Seattle IPv6 San Franciso Mumbai Warsaw Paris Johannesburg Buenos Aires Shanghai Tokyo AWS US-East Washington DC Tel-Aviv Amsterdam Dallas Brisbane Denver Frankfurt Montreal Hong Kong Miami San Francisco London New York Minneapolis
Madrid 1 253 294 41 164 142 141 54 17 186 243 262 262 102 94 77 31 117 255 121 32 105 172 132 147 26 97 119
Beijing 259 1 232 188 207
 
423 240 240
 
370 26 116 221 216 236 234 204 350 204 177
 
47
 
160 167 236 206
Sydney 295
 
1 313 156 147 208 314 283 428 354 186 140 227 229 336 284 188 12 170 303 219 121 231 148 278 219 195
Copenhagen 41
 
313 1 170 166 166 25 22 165 244 236 194 98 93 72 13 134 268 140 17 95 186 120 158 25 90 126
Seattle 163 213 156 171 1
 
281 172 149 269 219 196 125 76 64 193 140 60 187 30 155 78 135 71 22 142 76 55
IPv6 San Franciso
 
 
 
 
 
1
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Mumbai 138 420 212 167 278
 
1 180 136 304 371 383 149 224 315 320 157 280 179 262 141 302 110 241 278 273 311 308
Warsaw 54 240 314 25 172
 
180 1 39 179 262 235 274 116 109 85 36 141 287 140 29 107 193 135 164 36 107 148
Paris 18 240 283 22 149
 
136 39 1 162 226 243 254 85 79 69 15 111 251 109 14 84 204 108 134 11 79 103
Johannesburg 187
 
428 165 269
 
302 179 162 1 386
 
372 225 235 200 147 253 423 257 165 220 391 244 278 148 222 254
Buenos Aires 244 382 354 243 219
 
377 262 227 386 1 371 311 144 160 281 236 173 367 189 244 177 363 154 203 228 160 176
Shanghai 261 26 186 235 195
 
382 240 243
 
371 1 58 221 231 308 288 197 339 183 260 250 42 241 153 248 212 188
Tokyo 262 116 139 194 128
 
148 274 254 372 311 57 1 164 166 286 242 138 124 112 256 180 53 180 101 201 166 157
AWS US-East 101 230 226 98 76
 
224 116 84 224 144 238 164 1 2 138 88 34 241 53 86 14 216 26 62 76 8 27
Washington DC 94 216 229 93 65 82 311 109 78 235 160 239 167 2 1 136 81 73 306 45 83 15 239 28 63 75 6 26
Tel-Aviv 77 250 336 72 193
 
320 85 69 200 281 301 286 138 136 1 73 162 354 164 66 142 242 169 185 67 139 153
Amsterdam 31 298 281 13 140 136 158 36 15 151 237 304 242 88 81 73 1 120 258 116 9 92 180 118 137 11 79 105
Dallas 117 202 188 134 60 36 277 141 111 253 174 201 137 31 75 162 120 1 230 20 112 45 188 29 36 109 38 31
Brisbane 255 350 13 268 195 170 179 287 252 427 366 338 123 241 305 354 258 198 1 195 259 238 129 232 166 282 237 214
Denver 120 192 170 140 31 27 269 138 109 257 188 183 112 42 45 166 116 20 186 1 121 47 178 51 36 118 40 27
Frankfurt 32 177 303 18 155 155 139 29 14 165 244 259 256 86 83 66 9 112 259 121 1 92 219 124 145 21 87 112
Montreal 106 247 219 95 78
 
285 107 84 220 177 250 180 13 15 142 92 45 238 47 92 1 194 39 77 78 9 35
Hong Kong 172 47 121 189 135
 
114 192 203 392 367 40 53 217 230 242 180 188 128 189 213 194 1 235 163 222 211 228
Miami 133
 
229 120 71 70 241 135 111 244 154 241 180 28 28 168
 
29 229 51 118 39 236 1 77 104 33 42
San Francisco 147 160 147 158 21 1 278 164 143 282 204 152 102 62 63 186 141 37 179 24 147 77 163 77 1 134 64 53
London 26 172 278 25 142 133 285 36 11 147 228 248 201 76 75 67 11 109 282 118 21 78 222 106 134 1 73 103
New York 89 235 219 90 75 63 352 107 79 222 160 213 167 6 6 139 79 38 237 42 86 9 211 33 63 72 1 30
Minneapolis 119 206 195 126 55 49 281 148 103 254 176 187 156 26 27 154 104 32 215 27 112 35 228 41 52 98 31 1

What is Network Latency?

Network latency is the delay in time it takes information (packets) to travel from one node or location to another. This grid reveals any locations that are consistently performing slower that the average locations. Each monitoring location is situated in a Tier 3 data center with multiple pipelines connected directly to the backbone internet providers in that geographic region. Dotcom-Monitor performs thousands of tests to websites, servers and other online systems around the world each minute, so we understand the importance of backbone latency as well as the broader network latency in between the many different nodes along the path of internet traffic.

Test Network Latency

There are several interesting observations when you begin to study the network latency grid. The first to stand out is the stream of 1s diagonally down the page - this is because there is never any lag between a host and itself. You can see a similar result on your local machine by opening a command line and typing: ping localhost. The result should be <1ms which means that it takes less than one millisecond to ping itself.

You may also notice gaps in the grid, particularly between the IPv6 only locations and the locations that are IPv4 only - if the node is unable to communicate using IPv6 or does not have an IPv6 address, then no results will be shown.

Feel free to bookmark this page to come back and perform a quick check of overall internet backbone health.

Great Firewall of China

You may notice that most of the network latency results to and from the Shanghai China monitoring location are orders of magnitude higher than the rest of the locations. This is due to the amount of filtering on internet traffic by the Chinese government. In fact, there are many public websites such as Google, YouTube and Facebook that are completely blocked by the Great Firewall of China. Another reason for higher latency is due to a poorer infrastructure in China than other Western countries.

Additional Network Tools

For additional analytics feel free to navigate to the free tools section of Dotcom-Monitor where you can perform custom ping, traceroute or website speed tests. If you're here troubleshooting network latency issues with a website or server that you manage, please sign up for a free trial for 30 days and gain complete access to the entire suite of Dotcom-Monitor tools to help troubleshoot issues with your network, website availability and much more.