HTTP response header

The Server-Timing header field is used to communicate one or more metrics and descriptions for the given request-response cycle

Header usage statistics

Server-Timing response header information and usage statistics.

Websites using header Server-Timing 1,579,383
Percentage of websites that use Server-Timing header 2.95%
Total discovered header values 50,035
Header uses directives Yes
Header values are unique or random No
Most popular in the country Israel

Server-Timing Directives (4 total)

  • cache
  • cpu
  • db
  • total

Server-Timing Directives

Server-Timing directives value information and usage statistics

Directive Share Websites count Unique Values
cache 33.40% 527,440 2
total 0.11% 1,705 43
db <0.1% 81 5
cpu <0.1% 71 3

Distribution by websites popularity

Server-Timing detection in the top websites by popularity

Top 10k sites 501 websites
Top 100k sites 3,863 websites
Top 1m sites 23,362 websites

Websites utilizing Server-Timing

List of websites that use Server-Timing header

Domain Country Rank Contacts United States of America 16 United States of America 45 United States of America 64 United States of America 80 United States of America 80 Israel 88
See full domain list
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Geographical Distribution

Header usage distribution by websites across the globe.

Common header values

List of top common Server-Timing header values

Header value Value prevalence
cache;desc=miss, varnish;desc=miss, dc;desc=96 50.08%
cache;desc=hit, varnish;desc=hit, dc;desc=96 21.98%
cache;desc=miss, varnish;desc=miss, dc;desc=42 11.69%
cache;desc=hit, varnish;desc=hit, dc;desc=42 5.24%
cache;desc=miss, varnish;desc=miss, dc;desc=84 1.96%
cache;desc=miss, varnish;desc=miss_miss, dc;desc=fastly 1.61%
cdn-cache; desc=REVALIDATE 1.00%
cache;desc=hit, varnish;desc=hit, dc;desc=84 0.73%
cache;desc=hit, varnish;desc=hit_miss, dc;desc=fastly 0.72%
cdn-cache; desc=MISS 0.47%
cdn-cache; desc=HIT 0.36%
cache;desc=none 0.27%
cache;desc=hit, varnish;desc=hit_hit, dc;desc=fastly 0.15%
cache;desc="pass", host;desc="cp1085" 0.07%
cache;desc="miss", host;desc="cp1085" 0.07%
cache;desc=hit 0.05%
cache;desc=miss 0.04%
cache;desc="pass", host;desc="cp1075" 0.04%
cache;desc="miss", host;desc="cp1075" 0.03%
HIT-SYNTH, fastly;desc="Edge time";dur=0 0.03%