Sortix nightly manual
This manual documents Sortix nightly, a development build that has not been officially released. You can instead view this document in the latest official manual.
| CURLINFO_NAMELOOKUP_TIME(3) | Library Functions Manual | CURLINFO_NAMELOOKUP_TIME(3) | 
NAME
CURLINFO_NAMELOOKUP_TIME - get the name lookup time
SYNOPSIS
#include <curl/curl.h> CURLcode curl_easy_getinfo(CURL *handle, CURLINFO_NAMELOOKUP_TIME,
double *timep);
DESCRIPTION
Pass a pointer to a double to receive the total time in seconds from the start until the name resolving was completed.
When a redirect is followed, the time from each request is added together.
See also the TIMES overview in the curl_easy_getinfo(3) man page.
PROTOCOLS
This functionality affects all supported protocols
EXAMPLE
int main(void)
{
  CURL *curl = curl_easy_init();
  if(curl) {
    CURLcode res;
    double namelookup;
    curl_easy_setopt(curl, CURLOPT_URL, "https://example.com/");
    res = curl_easy_perform(curl);
    if(CURLE_OK == res) {
      res = curl_easy_getinfo(curl, CURLINFO_NAMELOOKUP_TIME, &namelookup);
      if(CURLE_OK == res) {
        printf("Time: %.1f", namelookup);
      }
    }
    /* always cleanup */
    curl_easy_cleanup(curl);
  }
}
AVAILABILITY
Added in curl 7.4.1
RETURN VALUE
Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.
SEE ALSO
CURLINFO_NAMELOOKUP_TIME_T(3), curl_easy_getinfo(3), curl_easy_setopt(3)
| 2025-10-30 | libcurl | 
