Accept-CH

HTTP response header

Header usage statistics

Accept-CH response header information and usage statistics.

Websites using header Accept-CH 1,024
Percentage of websites that use Accept-CH header <0.1%
Total discovered header values 69
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)

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

Accept-CH Directives

Accept-CH directives value information and usage statistics

Directive Share Websites count Unique Values
dpr 69.92% 716 1
ect 59.47% 609 1
device-memory 58.01% 594 1
downlink 54.59% 559 1
rtt 50.10% 513 1
save-data 23.34% 239 1
width 21.09% 216 1
ua 3.42% 35 1
ua-platform 2.54% 26 1
ua-mobile 2.44% 25 1
ua-full-version 2.34% 24 1
platform 2.25% 23 1
ua-arch 2.25% 23 1
arch 2.15% 22 1
model 2.15% 22 1
ua-platform-version 2.15% 22 1
mobile 1.46% 15 1

Distribution by websites popularity

Accept-CH detection in the top websites by popularity

Top 10k sites 34 websites
Top 100k sites 64 websites
Top 1m sites 163 websites

Websites utilizing Accept-CH

List of websites that use Accept-CH header

Domain Country Rank Contacts
www.amazon.com United States of America 21
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
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 29.20%
device-memory, dpr, viewport-width, rtt, downlink, ect, save-data 18.36%
Device-Memory, DPR, ECT, Viewport-Width 10.06%
device-memory, dpr, width, viewport-width, rtt, downlink, ect 7.42%
DPR, Width, Viewport-Width 5.27%
Save-Data 4.20%
ect,rtt,downlink 2.93%
Viewport-Width 2.44%
DPR, Viewport-Width, Width, Save-Data 2.25%
DPR, Width, Viewport-Width, Downlink, Device-Memory 2.05%
DPR, Viewport-Width, Width 1.56%
UA-Arch,UA-Full-Version,UA-Mobile,UA-Model,UA-Platform-Version,UA-Platform,UA,ECT,DPR,Downlink,Save-Data,Width,Viewport-Width 0.78%
viewport-width, dpr, device-memory, rtt, downlink, ect, ua, platform, arch, model, mobile 0.68%
DPR,Viewport-Width 0.68%
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 0.68%
device-memory, ect 0.59%
DPR 0.59%
DPR, Width, Viewport-Width, Downlink, Save-Data 0.59%
Viewport-Width, Downlink 0.49%
DPR,Width,Viewport-Width 0.49%