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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 1 360 341 41 163 154 111 47 17 182 255 280 265 113 94 64 33 148 315 134 44 106 332 123 155 28 99 120
Beijing 351 1 344 184 206
 
419 302 386
 
379 26 60 327 383 298 222 221 373 193 223 277 42 364 229
 
290 352
Sydney 341 335 1 305 157 147 238 309 288 457 375
 
139 213 233 346 302 180 12 175 311 216 140 228 147 282 227 205
Copenhagen 41 183 306 1 167 156 135 18 25 160 241 224 250 93 97 77 14 134 323 133 16 94 278 117 155 25 93 128
Seattle 163 240 157 168 1
 
274 175 146 273 205 195 129 63 64 188 132 55 171 30 164 78 155 71 21 142 66 54
IPv6 San Franciso
 
 
 
 
 
1
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Mumbai 110 416 238 135 273
 
1 135 130 262 446 394 214 240 305 183 126 272 217 241 127 243 90 260 241 241 253 260
Warsaw 49 302 309 18 167
 
138 1 39 188 251
 
294 109 117 80 25 132 335 140 28 101 263 128 158 32 99
 
Paris 18 406 288 25 146
 
129 38 1 159 222 293 255 90 78 68 15 108 297 110 14 85 247 111 133 10 84 105
Johannesburg 176
 
457 160 273
 
260 178 159 1 374
 
419 225 228 215 146 281 442 278 156 216 356 244 302 143 212 252
Buenos Aires 255 375 350 240 207
 
442 266
 
374 1 435 310 162 150 279 226 168 374 180 238 157
 
150 207 221 149 171
Shanghai 311 25 297 223 195
 
393 337 284
 
424 1 74 298 241 371 222 290 379 249 371 339 34 238 227 332 233 226
Tokyo 266 85 140 251 129
 
213 275 254 418 310 87 1 182 175 333 244 135 124 129 246 229 53 173 109 293 173 146
AWS US-East 112 326 211 93 64
 
240 120 90 225 162 303 182 1 1 129 78 30 232 49 95 14 220 25 63 78 8 28
Washington DC 94 366 233 97 66 67 295 123 79 228 151 240 175 1 1 142 88 39 296 46 87 15 232 26 68 107 6 30
Tel-Aviv 64
 
346 77 192
 
184 80 68 215 277 371 333 129 142 1 75 171 357 163 64 135 249 163 195 66 131 163
Amsterdam 33 222 302 14 138 136 126 25 15 145 226 203 244 78 89 75 1 114 341 114 9 82 223 110 137 11 75 106
Dallas 148 202 180 144 57 47 261 142 109 282 168
 
139 29 39 171 114 1 198 24 113 44 186 35 39 111 35 45
Brisbane 315 387 12 324 172 163 217 358 297 442 375 379 124 234 292 357 341 194 1 182 299 234 127 220 158 332 223 208
Denver 134 191 175 133 30 24 253 136
 
279 180 248 129 53 47 163 114 27 186 1 88 44 179 43 25 112 37 34
Frankfurt 44 222 311 15 164 150 127 28 14 156 236 250 246 94 87 63 9 113 300 119 1 94 230 121 144 17 80 114
Montreal 101 277 216 94 78
 
254 102 85 216 201 347 222 14 15 135 82 44 234 42 94 1 238 39 76 79 8 35
Hong Kong 258 42 140 279 155
 
90 286 255 408 395 35 54 218 232 239 223 182 127 179 230 238 1 209 239 230 209 195
Miami 122
 
228 117 71 70 258 128 110 243 149 236 174 26 26 163 110 35 220 47 121 39 255 1 75 103 30 42
San Francisco 155 224 147 155 22 1 257 161 133 303 207 225 102 62 69 196 137 39 158 27 144 77 164 75 1 134 63 51
London 28 275 282 25 142 138 241 52 10 143 221 330 293 78 107 66 11 111 323 110 17 79 220 103 134 1 70 101
New York 101 289 227 93 66 73 253 103 80 212 149 225 173 7 15 130 75 39 223 39 79 8 209 30 62 69 1 50
Minneapolis 120 361 205 128 55 52 248 140 105 252 170 231 146 29 31 164 106 64 208 33 114 35 195 42 51 100 32 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.