X-Response-Time

To create a middleware that records the response time for requests in HTTP servers. The "response time" is defined here as the elapsed time from when a request enters this middleware to when the headers are written out to the client.

Header usage statistics

X-Response-Time response header information and usage statistics.

Websites using header X-Response-Time	13,892
Percentage of websites that use X-Response-Time header	less than 0.1%
Total discovered header values	5,955
Header uses directives	No
Header values are unique or random	No
Most popular in the country	United States