Polyfill.io
The public instance of the polyfill service is hosted by the Financial Times, with the generous support of Fastly, who provide CDN distribution. View Fastly network map
This shows the number of requests we have served per day, over the last 180 days, measured by Fastly:
| Date | Requests |
|---|---|
| 25 Dec 2017 00:00 | 84156503 |
| 26 Dec 2017 00:00 | 102034171 |
| 27 Dec 2017 00:00 | 108476681 |
| 28 Dec 2017 00:00 | 103829254 |
| 29 Dec 2017 00:00 | 97626769 |
| 30 Dec 2017 00:00 | 91782161 |
| 31 Dec 2017 00:00 | 83261386 |
| 1 Jan 2018 00:00 | 87187157 |
| 2 Jan 2018 00:00 | 108412950 |
| 3 Jan 2018 00:00 | 118534439 |
| 4 Jan 2018 00:00 | 128923485 |
| 5 Jan 2018 00:00 | 124652459 |
| 6 Jan 2018 00:00 | 114002907 |
| 7 Jan 2018 00:00 | 118316648 |
| 8 Jan 2018 00:00 | 132189702 |
| 9 Jan 2018 00:00 | 130867281 |
| 10 Jan 2018 00:00 | 127827186 |
| 11 Jan 2018 00:00 | 127411927 |
| 12 Jan 2018 00:00 | 121884686 |
| 13 Jan 2018 00:00 | 108305737 |
| 14 Jan 2018 00:00 | 113701395 |
| 15 Jan 2018 00:00 | 129564506 |
| 16 Jan 2018 00:00 | 134840813 |
| 17 Jan 2018 00:00 | 130145641 |
| 18 Jan 2018 00:00 | 126168580 |
| 19 Jan 2018 00:00 | 117482014 |
| 20 Jan 2018 00:00 | 105049679 |
| 21 Jan 2018 00:00 | 112963724 |
| 22 Jan 2018 00:00 | 127463711 |
| 23 Jan 2018 00:00 | 128251542 |
| 24 Jan 2018 00:00 | 129418632 |
| 25 Jan 2018 00:00 | 126867522 |
| 26 Jan 2018 00:00 | 120384169 |
| 27 Jan 2018 00:00 | 107965025 |
| 28 Jan 2018 00:00 | 115270802 |
| 29 Jan 2018 00:00 | 130355607 |
| 30 Jan 2018 00:00 | 130555501 |
| 31 Jan 2018 00:00 | 129498048 |
| 1 Feb 2018 00:00 | 126605496 |
| 2 Feb 2018 00:00 | 123983716 |
| 3 Feb 2018 00:00 | 111065036 |
| 4 Feb 2018 00:00 | 115819500 |
| 5 Feb 2018 00:00 | 132442241 |
| 6 Feb 2018 00:00 | 136758552 |
| 7 Feb 2018 00:00 | 139067668 |
| 8 Feb 2018 00:00 | 139124509 |
| 9 Feb 2018 00:00 | 134354204 |
| 10 Feb 2018 00:00 | 121145171 |
| 11 Feb 2018 00:00 | 127889728 |
| 12 Feb 2018 00:00 | 140596687 |
| 13 Feb 2018 00:00 | 138263086 |
| 14 Feb 2018 00:00 | 138212012 |
| 15 Feb 2018 00:00 | 136768187 |
| 16 Feb 2018 00:00 | 128170459 |
| 17 Feb 2018 00:00 | 125968624 |
| 18 Feb 2018 00:00 | 146589060 |
| 19 Feb 2018 00:00 | 165903663 |
| 20 Feb 2018 00:00 | 167525854 |
| 21 Feb 2018 00:00 | 158916018 |
| 22 Feb 2018 00:00 | 160879043 |
| 23 Feb 2018 00:00 | 141576752 |
| 24 Feb 2018 00:00 | 126713076 |
| 25 Feb 2018 00:00 | 134883238 |
| 26 Feb 2018 00:00 | 148826217 |
| 27 Feb 2018 00:00 | 146355757 |
| 28 Feb 2018 00:00 | 145228059 |
| 1 Mar 2018 00:00 | 143446723 |
| 2 Mar 2018 00:00 | 137850813 |
| 3 Mar 2018 00:00 | 118868541 |
| 4 Mar 2018 00:00 | 126467406 |
| 5 Mar 2018 00:00 | 146264015 |
| 6 Mar 2018 00:00 | 147668608 |
| 7 Mar 2018 00:00 | 144228367 |
| 8 Mar 2018 00:00 | 138996984 |
| 9 Mar 2018 00:00 | 132861473 |
| 10 Mar 2018 00:00 | 121317330 |
| 11 Mar 2018 00:00 | 131218955 |
| 12 Mar 2018 00:00 | 150260778 |
| 13 Mar 2018 00:00 | 147995408 |
| 14 Mar 2018 00:00 | 151339807 |
| 15 Mar 2018 00:00 | 142475638 |
| 16 Mar 2018 00:00 | 132398933 |
| 17 Mar 2018 00:00 | 120790249 |
| 18 Mar 2018 00:00 | 129563559 |
| 19 Mar 2018 00:00 | 148971127 |
| 20 Mar 2018 00:00 | 152870962 |
| 21 Mar 2018 00:00 | 152410152 |
| 22 Mar 2018 00:00 | 145527066 |
| 23 Mar 2018 00:00 | 137957494 |
| 24 Mar 2018 00:00 | 122772704 |
| 25 Mar 2018 00:00 | 124787041 |
| 26 Mar 2018 00:00 | 141243768 |
| 27 Mar 2018 00:00 | 141244426 |
| 28 Mar 2018 00:00 | 136539804 |
| 29 Mar 2018 00:00 | 131857731 |
| 30 Mar 2018 00:00 | 124484637 |
| 31 Mar 2018 00:00 | 118672916 |
| 1 Apr 2018 00:00 | 118417810 |
| 2 Apr 2018 00:00 | 138034449 |
| 3 Apr 2018 00:00 | 148032892 |
| 4 Apr 2018 00:00 | 146099052 |
| 5 Apr 2018 00:00 | 141986002 |
| 6 Apr 2018 00:00 | 135585696 |
| 7 Apr 2018 00:00 | 122905451 |
| 8 Apr 2018 00:00 | 127860716 |
| 9 Apr 2018 00:00 | 151467598 |
| 10 Apr 2018 00:00 | 151332754 |
| 11 Apr 2018 00:00 | 160644016 |
| 12 Apr 2018 00:00 | 163440372 |
| 13 Apr 2018 00:00 | 151041716 |
| 14 Apr 2018 00:00 | 134732919 |
| 15 Apr 2018 00:00 | 139639882 |
| 16 Apr 2018 00:00 | 156225246 |
| 17 Apr 2018 00:00 | 151183375 |
| 18 Apr 2018 00:00 | 148817465 |
| 19 Apr 2018 00:00 | 146308222 |
| 20 Apr 2018 00:00 | 139677430 |
| 21 Apr 2018 00:00 | 123019769 |
| 22 Apr 2018 00:00 | 131496908 |
| 23 Apr 2018 00:00 | 156090595 |
| 24 Apr 2018 00:00 | 152817875 |
| 25 Apr 2018 00:00 | 150432183 |
| 26 Apr 2018 00:00 | 150547064 |
| 27 Apr 2018 00:00 | 141807612 |
| 28 Apr 2018 00:00 | 123117710 |
| 29 Apr 2018 00:00 | 130439531 |
| 30 Apr 2018 00:00 | 144954317 |
| 1 May 2018 00:00 | 145063226 |
| 2 May 2018 00:00 | 147623385 |
| 3 May 2018 00:00 | 149955772 |
| 4 May 2018 00:00 | 141585862 |
| 5 May 2018 00:00 | 124752955 |
| 6 May 2018 00:00 | 130877359 |
| 7 May 2018 00:00 | 150216255 |
| 8 May 2018 00:00 | 156877546 |
| 9 May 2018 00:00 | 155051710 |
| 10 May 2018 00:00 | 154415832 |
| 11 May 2018 00:00 | 149430166 |
| 12 May 2018 00:00 | 134464778 |
| 13 May 2018 00:00 | 136456486 |
| 14 May 2018 00:00 | 157916424 |
| 15 May 2018 00:00 | 157929677 |
| 16 May 2018 00:00 | 157379713 |
| 17 May 2018 00:00 | 155134962 |
| 18 May 2018 00:00 | 152377521 |
| 19 May 2018 00:00 | 133951065 |
| 20 May 2018 00:00 | 137994270 |
| 21 May 2018 00:00 | 165035112 |
| 22 May 2018 00:00 | 166944315 |
| 23 May 2018 00:00 | 159229249 |
| 24 May 2018 00:00 | 156842458 |
| 25 May 2018 00:00 | 149078645 |
| 26 May 2018 00:00 | 130041983 |
| 27 May 2018 00:00 | 137201713 |
| 28 May 2018 00:00 | 151111740 |
| 29 May 2018 00:00 | 159625387 |
| 30 May 2018 00:00 | 158094653 |
| 31 May 2018 00:00 | 152676185 |
| 1 Jun 2018 00:00 | 145799672 |
| 2 Jun 2018 00:00 | 128003131 |
| 3 Jun 2018 00:00 | 133898321 |
| 4 Jun 2018 00:00 | 158271831 |
| 5 Jun 2018 00:00 | 155866270 |
| 6 Jun 2018 00:00 | 157134911 |
| 7 Jun 2018 00:00 | 157046516 |
| 8 Jun 2018 00:00 | 158317679 |
| 9 Jun 2018 00:00 | 132795575 |
| 10 Jun 2018 00:00 | 137701498 |
| 11 Jun 2018 00:00 | 157067783 |
| 12 Jun 2018 00:00 | 159855942 |
| 13 Jun 2018 00:00 | 165271063 |
| 14 Jun 2018 00:00 | 166830595 |
| 15 Jun 2018 00:00 | 158138214 |
| 16 Jun 2018 00:00 | 139427587 |
| 17 Jun 2018 00:00 | 140448820 |
| 18 Jun 2018 00:00 | 164782063 |
| 19 Jun 2018 00:00 | 171848789 |
| 20 Jun 2018 00:00 | 166979695 |
| 21 Jun 2018 00:00 | 171977054 |
| 22 Jun 2018 00:00 | 168506443 |
Mean global response time, ms, from Pingdom:
| Date | Response time (ms) |
|---|---|
| 16 Jun 2018 13:00 | 273 |
| 16 Jun 2018 14:00 | 269 |
| 16 Jun 2018 15:00 | 274 |
| 16 Jun 2018 16:00 | 275 |
| 16 Jun 2018 17:00 | 282 |
| 16 Jun 2018 18:00 | 282 |
| 16 Jun 2018 19:00 | 270 |
| 16 Jun 2018 20:00 | 271 |
| 16 Jun 2018 21:00 | 286 |
| 16 Jun 2018 22:00 | 279 |
| 16 Jun 2018 23:00 | 265 |
| 17 Jun 2018 00:00 | 269 |
| 17 Jun 2018 01:00 | 264 |
| 17 Jun 2018 02:00 | 275 |
| 17 Jun 2018 03:00 | 269 |
| 17 Jun 2018 04:00 | 267 |
| 17 Jun 2018 05:00 | 272 |
| 17 Jun 2018 06:00 | 283 |
| 17 Jun 2018 07:00 | 281 |
| 17 Jun 2018 08:00 | 279 |
| 17 Jun 2018 09:00 | 272 |
| 17 Jun 2018 10:00 | 279 |
| 17 Jun 2018 11:00 | 270 |
| 17 Jun 2018 12:00 | 278 |
| 17 Jun 2018 13:00 | 283 |
| 17 Jun 2018 14:00 | 273 |
| 17 Jun 2018 15:00 | 280 |
| 17 Jun 2018 16:00 | 276 |
| 17 Jun 2018 17:00 | 291 |
| 17 Jun 2018 18:00 | 269 |
| 17 Jun 2018 19:00 | 262 |
| 17 Jun 2018 20:00 | 276 |
| 17 Jun 2018 21:00 | 275 |
| 17 Jun 2018 22:00 | 291 |
| 17 Jun 2018 23:00 | 273 |
| 18 Jun 2018 00:00 | 265 |
| 18 Jun 2018 01:00 | 276 |
| 18 Jun 2018 02:00 | 267 |
| 18 Jun 2018 03:00 | 273 |
| 18 Jun 2018 04:00 | 271 |
| 18 Jun 2018 05:00 | 274 |
| 18 Jun 2018 06:00 | 270 |
| 18 Jun 2018 07:00 | 275 |
| 18 Jun 2018 08:00 | 275 |
| 18 Jun 2018 09:00 | 279 |
| 18 Jun 2018 10:00 | 274 |
| 18 Jun 2018 11:00 | 276 |
| 18 Jun 2018 12:00 | 274 |
| 18 Jun 2018 13:00 | 277 |
| 18 Jun 2018 14:00 | 272 |
| 18 Jun 2018 15:00 | 279 |
| 18 Jun 2018 16:00 | 275 |
| 18 Jun 2018 17:00 | 275 |
| 18 Jun 2018 18:00 | 276 |
| 18 Jun 2018 19:00 | 284 |
| 18 Jun 2018 20:00 | 276 |
| 18 Jun 2018 21:00 | 268 |
| 18 Jun 2018 22:00 | 264 |
| 18 Jun 2018 23:00 | 265 |
| 19 Jun 2018 00:00 | 263 |
| 19 Jun 2018 01:00 | 265 |
| 19 Jun 2018 02:00 | 271 |
| 19 Jun 2018 03:00 | 259 |
| 19 Jun 2018 04:00 | 251 |
| 19 Jun 2018 05:00 | 243 |
| 19 Jun 2018 06:00 | 241 |
| 19 Jun 2018 07:00 | 251 |
| 19 Jun 2018 08:00 | 239 |
| 19 Jun 2018 09:00 | 245 |
| 19 Jun 2018 10:00 | 246 |
| 19 Jun 2018 11:00 | 256 |
| 19 Jun 2018 12:00 | 246 |
| 19 Jun 2018 13:00 | 250 |
| 19 Jun 2018 14:00 | 246 |
| 19 Jun 2018 15:00 | 246 |
| 19 Jun 2018 16:00 | 239 |
| 19 Jun 2018 17:00 | 261 |
| 19 Jun 2018 18:00 | 254 |
| 19 Jun 2018 19:00 | 238 |
| 19 Jun 2018 20:00 | 266 |
| 19 Jun 2018 21:00 | 258 |
| 19 Jun 2018 22:00 | 247 |
| 19 Jun 2018 23:00 | 238 |
| 20 Jun 2018 00:00 | 237 |
| 20 Jun 2018 01:00 | 245 |
| 20 Jun 2018 02:00 | 243 |
| 20 Jun 2018 03:00 | 243 |
| 20 Jun 2018 04:00 | 253 |
| 20 Jun 2018 05:00 | 267 |
| 20 Jun 2018 06:00 | 246 |
| 20 Jun 2018 07:00 | 258 |
| 20 Jun 2018 08:00 | 253 |
| 20 Jun 2018 09:00 | 244 |
| 20 Jun 2018 10:00 | 241 |
| 20 Jun 2018 11:00 | 243 |
| 20 Jun 2018 12:00 | 245 |
| 20 Jun 2018 13:00 | 255 |
| 20 Jun 2018 14:00 | 246 |
| 20 Jun 2018 15:00 | 249 |
| 20 Jun 2018 16:00 | 245 |
| 20 Jun 2018 17:00 | 280 |
| 20 Jun 2018 18:00 | 253 |
| 20 Jun 2018 19:00 | 271 |
| 20 Jun 2018 20:00 | 268 |
| 20 Jun 2018 21:00 | 273 |
| 20 Jun 2018 22:00 | 271 |
| 20 Jun 2018 23:00 | 291 |
| 21 Jun 2018 00:00 | 297 |
| 21 Jun 2018 01:00 | 267 |
| 21 Jun 2018 02:00 | 271 |
| 21 Jun 2018 03:00 | 274 |
| 21 Jun 2018 04:00 | 278 |
| 21 Jun 2018 05:00 | 274 |
| 21 Jun 2018 06:00 | 269 |
| 21 Jun 2018 07:00 | 268 |
| 21 Jun 2018 08:00 | 278 |
| 21 Jun 2018 09:00 | 279 |
| 21 Jun 2018 10:00 | 273 |
| 21 Jun 2018 11:00 | 283 |
| 21 Jun 2018 12:00 | 278 |
| 21 Jun 2018 13:00 | 281 |
| 21 Jun 2018 14:00 | 299 |
| 21 Jun 2018 15:00 | 273 |
| 21 Jun 2018 16:00 | 286 |
| 21 Jun 2018 17:00 | 283 |
| 21 Jun 2018 18:00 | 292 |
| 21 Jun 2018 19:00 | 287 |
| 21 Jun 2018 20:00 | 299 |
| 21 Jun 2018 21:00 | 312 |
| 21 Jun 2018 22:00 | 272 |
| 21 Jun 2018 23:00 | 279 |
| 22 Jun 2018 00:00 | 253 |
| 22 Jun 2018 01:00 | 262 |
| 22 Jun 2018 02:00 | 249 |
| 22 Jun 2018 03:00 | 254 |
| 22 Jun 2018 04:00 | 260 |
| 22 Jun 2018 05:00 | 254 |
| 22 Jun 2018 06:00 | 258 |
| 22 Jun 2018 07:00 | 263 |
| 22 Jun 2018 08:00 | 266 |
| 22 Jun 2018 09:00 | 259 |
| 22 Jun 2018 10:00 | 259 |
| 22 Jun 2018 11:00 | 261 |
| 22 Jun 2018 12:00 | 256 |
| 22 Jun 2018 13:00 | 261 |
| 22 Jun 2018 14:00 | 258 |
| 22 Jun 2018 15:00 | 249 |
| 22 Jun 2018 16:00 | 258 |
| 22 Jun 2018 17:00 | 259 |
| 22 Jun 2018 18:00 | 261 |
| 22 Jun 2018 19:00 | 254 |
| 22 Jun 2018 20:00 | 260 |
| 22 Jun 2018 21:00 | 259 |
| 22 Jun 2018 22:00 | 267 |
| 22 Jun 2018 23:00 | 259 |
| 23 Jun 2018 00:00 | 269 |
| 23 Jun 2018 01:00 | 269 |
| 23 Jun 2018 02:00 | 258 |
| 23 Jun 2018 03:00 | 258 |
| 23 Jun 2018 04:00 | 251 |
| 23 Jun 2018 05:00 | 256 |
| 23 Jun 2018 06:00 | 259 |
| 23 Jun 2018 07:00 | 254 |
| 23 Jun 2018 08:00 | 258 |
| 23 Jun 2018 09:00 | 267 |
| 23 Jun 2018 10:00 | 248 |
| 23 Jun 2018 11:00 | 265 |
| 23 Jun 2018 12:00 | 254 |
| 23 Jun 2018 13:00 | 251 |
Hit ratio, last 7 days, from Fastly:
| Cache result | Requests |
|---|---|
| Hits | 1102448798 |
| Misses | 6962017 |
Total downtime, according to Pingdom:
| Last 30 days | None |
|---|---|
| Last 3 months | None |
| Last 12 months | 4 minutes |
Caching responses that vary by User-Agent is very hard to do with good cache performance. We use a custom Fastly VCL configuration that separates the UA normalisation from the polyfill bundle.