As part of figuring out how to best process standard tile layer logs I had a chance to generate some charts for usage of the OpenStreetMap Standard tile layer on the day of 2021-03-14, UTC time. This was over a weekend, so there are probably differences on a weekday. I’m also only looking at tiles delivered and not including blocked tiles from scrapers and similar usage. All traffic is in tiles per second, averaged over the day.

Countries

I first looked at usage of the layer from users on openstreetmap.org and all users, by country.

Country code	osm.org-based traffic	total traffic
DE	237.7	1299.54
PL	89.07	674.67
RU	69.97	949.04
US	67.64	1474.47
FR	61.75	1234.47
GB	55.75	628.81
IT	41.32	432.84
NL	40.78	428.73
AT	27.14	115.6
CH	21.84	116.57
UA	19.38	303.38
CN	17.93	330.04
BE	16.95	189.03
CA	15.97	269.16
ES	13.56	353.89
AU	11.26	145.75
JP	11.25	256.9
IN	11.04	223.02
SE	10.42	154.83
FI	10.24	118.19
KZ	9.75	55.72
AR	9.57	263.79
TR	9.46	132.14
HU	9.39	169.86
HK	9.31	130.87
CZ	8.53	158.03
BR	8.19	472.51
ID	7.93	182.18
PH	7.46	53.86
SK	6.89	63
DK	6.73	116.17
RO	5.66	312.97
IR	5.62	300.05
TW	5.37	102.62
KR	5.3	35.72
BY	5.25	68.57
IL	4.89	53.97
HR	4.82	43.07
IQ	4.76	16.92
NO	4.4	59.52
RS	4.33	42.49
NZ	4.15	38.56
CO	4.12	203.94
MX	3.6	190.62
GR	3.28	45.04
PT	3.26	56.45
IE	2.88	64.29
LT	2.81	63.05
TH	2.62	75.52
CL	2.61	55.24
MY	2.54	32.12
VN	2.51	85.74
SI	2.33	19.29
SG	2.32	33.75
EE	2.31	21.87
LU	2.29	9.61
BG	2.12	40.86
LV	2.12	44.77
EG	1.9	29.49
BA	1.7	13.31
BD	1.59	67.94
ZA	1.45	25.32
AE	1.42	19.94
DZ	1.32	18.24
PK	1.26	31.58
PE	1.26	68.36
SA	1.24	40.63
YE	1.14	1.8
MA	1.11	18.1
MD	1.02	12.5

Traffic is very much as I expected, with OSM.org usage generally correlated with users.

Hosts

There’s a few ways to reach the standard tile layer. The recommended one is tile.openstreetmap.org, but there’s the legacy a.tile.openstreetmap.org, b.tile.openstreetmap.org, and c.tile.openstreetmap.org domains, and other domains that alias to the same service. If you’re setting up something new, use only tile.openstreetmap.org and HTTP/2 will handle multiple tile fetches in parallel.

host	TPS
a.tile.openstreetmap.org	4251.35
b.tile.openstreetmap.org	3668.94
c.tile.openstreetmap.org	3595.94
tile.openstreetmap.org	2282.77
b.tile.osm.org	225.13
a.tile.osm.org	207.61
c.tile.osm.org	200.73
tile.osm.org	2.25
b.Tile.openstreetmap.org	0
c.Tile.openstreetmap.org	0
a.Tile.openstreetmap.org	0
cdn-fastly-test.tile.openstreetmap.org	0
tile-openstreetmap-org.global.ssl.fastly.net	0

The 0 values are below 0.005 TPS. The last two domains were test domains that might still be cached in some users. There’s more traffic on a.tile.openstreetmap.org than b or c because sometimes people hard-code only one domain.

QGIS

QGIS is one of the major users of the standard tile layer, and we can get a breakdown of versions

version	TPS
31800	7.23
31700	2.58
31604	48.73
31603	13.43
31602	3.76
31601	4.71
31600	4.52
31416	4.26
31415	17.13
31401	0.91
31400	1.99
31203	1.91
31202	4.43
31201	3.03
31200	4.63
31014	12.49
31013	1.83
31012	1.66
31011	2.04
31010	3.43
31009	1.04
31008	0.81
31007	1.89
31006	3.35
31005	2.6
31004	6.07
31003	1.88
31002	2.02

Versions before 3.10 used a different format in their user-agent, so I decided to cut the chart off there. Earlier versions contributed 38.54 TPS.