Requesting tiles seems a bit slow, considering that we now have 16 varnishes and almost no load.
https://maps.wikimedia.org/osm-intl/11/604/767.png
The wikipedia resources seem to have 3 varnish servers, but maps show 4, with the first one consistently a miss(0):
```
x-cache:cp2015 miss(0), cp1046 hit(1), cp3006 hit(1), cp3004 frontend hit(1)
x-cache:cp2015 miss(0), cp1046 hit(1), cp3006 hit(1), cp3004 frontend hit(2)
x-cache:cp2015 miss(0), cp1046 hit(1), cp3006 hit(1), cp3004 frontend hit(3)
```
Some of `x-varnish` headers (not sure what they are)
```
x-varnish:54309690, 47529231 52262450, 76489992 71663454, 5197 4054078
x-varnish:54309690, 47529231 52262450, 76489992 71663454, 1079612 4054078
```
Pings:
```
1. fe80::1 0.0% 108 2.8 3.4 0.9 67.5 9.0
2. 2a02:2698:6c00::502 0.0% 107 3.1 13.6 2.2 116.6 18.3
3. 2a02:2698:6c00::1e0e 0.0% 107 2.0 6.8 1.7 75.8 12.3
4. GW-ERTelecom.retn.net 0.0% 107 1.9 7.4 1.8 134.9 17.3
5. ae13-110.RT.SL.SPB.RU.retn.net 0.0% 107 14.3 18.2 11.4 140.2 19.9
6. RT.TC2.AMS.NL.retn.net 0.9% 107 100.0 145.8 98.5 2965. 277.1
7. ae2.cr1-esams.wikimedia.org 4.7% 107 158.7 115.1 96.6 236.9 23.6
8. maps-lb.esams.wikimedia.org 1.9% 107 102.6 117.7 97.4 274.8 26.4
```