Accept-CH

HTTP response header

Header usage statistics

Accept-CH response header information and usage statistics.

Websites using header Accept-CH 926
Percentage of websites that use Accept-CH header <0.1%
Total discovered header values 55
Header uses directives Yes
Header values are unique or random No
Most popular in the country United States of America

Accept-CH Directives (17 total)

  • device-memory
  • downlink
  • dpr
  • ect
  • rtt
  • save-data
  • width
  • arch
  • mobile
  • model
  • platform
  • ua
  • ua-arch
  • ua-full-version
  • ua-mobile
  • ua-platform
  • ua-platform-version

Accept-CH Directives

Accept-CH directives value information and usage statistics

Directive Share Websites count Unique Values
dpr 72.35% 670 1
ect 60.37% 559 1
device-memory 58.96% 546 1
downlink 57.24% 530 1
rtt 52.92% 490 1
width 23.11% 214 1
save-data 20.84% 193 1
ua 2.16% 20 1
arch 1.40% 13 1
model 1.40% 13 1
platform 1.40% 13 1
ua-arch 1.40% 13 1
ua-mobile 1.40% 13 1
ua-platform 1.40% 13 1
mobile 1.30% 12 1
ua-full-version 1.30% 12 1
ua-platform-version 1.30% 12 1

Distribution by websites popularity

Accept-CH detection in the top websites by popularity

Top 10k sites 32 websites
Top 100k sites 60 websites
Top 1m sites 153 websites

Websites utilizing Accept-CH

List of websites that use Accept-CH header

Domain Country Rank Contacts
issuu.com United States of America 87
www.amazon.de United States of America 90
www.yahoo.com United States of America 132
www.amazon.fr United States of America 134
www.shopify.com United States of America 159
www.amazon.com United States of America 796,892
See full domain list

Geographical Distribution

Header usage distribution by websites across the globe.






Common header values

List of top common Accept-CH header values

Header value Value prevalence
Viewport-Width, DPR, Device-Memory, RTT, Downlink, ECT 31.86%
device-memory, dpr, viewport-width, rtt, downlink, ect, save-data 16.95%
device-memory, dpr, width, viewport-width, rtt, downlink, ect 9.29%
Device-Memory, DPR, ECT, Viewport-Width 6.26%
DPR, Width, Viewport-Width 6.16%
Save-Data 4.75%
ect,rtt,downlink 2.92%
Viewport-Width 2.59%
DPR, Viewport-Width, Width, Save-Data 2.59%
DPR, Width, Viewport-Width, Downlink, Device-Memory 2.27%
DPR, Viewport-Width, Width 1.84%
DPR, Width, Viewport-Width, Downlink, Save-Data 0.97%
UA-Arch,UA-Full-Version,UA-Mobile,UA-Model,UA-Platform-Version,UA-Platform,UA,ECT,DPR,Downlink,Save-Data,Width,Viewport-Width 0.86%
DPR,Viewport-Width 0.76%
viewport-width, dpr, device-memory, rtt, downlink, ect, ua, platform, arch, model, mobile 0.65%
DPR 0.65%
DPR,Width,Viewport-Width 0.54%
DPR, Width, Viewport-Width, Device-Memory, rtt, downlink, ect, lang, ua, arch, platform, model, UA-Mobile, UA-Full-Version, UA, UA-Arch, UA-Model, UA-Platform, UA-Platform-Version 0.54%
DPR,Width,Viewport-Width,Downlink,Save-Data 0.43%
UA, Full-Version, Platform, Platform-Version, Arch, Mobile, Model, UA-Full-Version, UA-Platform, UA-Arch, UA-Mobile, UA-Model, UA-Platform-Version 0.43%