HTTP response header

Header usage statistics

Worker response header information and usage statistics.

Websites using header Worker 220
Percentage of websites that use Worker header <0.1%
Total discovered header values 10
Header uses directives No
Header values are unique or random No
Most popular in the country United States of America

Distribution by websites popularity

Worker detection in the top websites by popularity

Top 10k sites 0 websites
Top 100k sites 6 websites
Top 1m sites 74 websites

Websites utilizing Worker

List of websites that use Worker header

Domain Country Rank Contacts United States of America 13,572 United States of America 15,685 United States of America 23,798 United States of America 23,798 United States of America 24,223 United States of America 28,293
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Geographical Distribution

Header usage distribution by websites across the globe.

Common header values

List of top common Worker header values

Header value Value prevalence
web1 72.73%
web4 15.91%
vdir_prod_movie_precache 3.64%
vdir_prod_music_precache 2.27%
vdir_prod_srphp_precache 1.82%
worker-a 1.36%
vdir_prod_legacy_precache 0.91% 0.45%
7 0.45%
domain-placeholder 0.45%