CURLINFO_N...KUP_TIME_T(3)

💖 NAME 💖

okay so this is the CURLINFO_N...KUP_TIME_T(3) page from the Library Functions Manual, and it’s literally about CURLINFO_NAMELOOKUP_TIME_T — name lookup time in microseconds ✨

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✨ SYNOPSIS ✨

#include <curl/curl.h>

CURLcode curl_easy_getinfo(CURL *handle, CURLINFO_NAMELOOKUP_TIME_T,
                           curl_off_t *timep);

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🦋 DESCRIPTION 🦋

bestie, you pass a pointer to a curl_off_t, and it receives the total time in microseconds from the start until the name resolving was completed 💅

when a redirect is followed, the time from each request is added together, periodt ⭐

also go peek at the TIMES overview in the curl_easy_getinfo(3) man page, iykyk 🫶

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🌈 PROTOCOLS 🌈

this functionality affects all supported protocols 🌸

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🍓 EXAMPLE 🍓

int main(void)
{
  CURL *curl = curl_easy_init();
  if(curl) {
    CURLcode result;
    curl_off_t namelookup;
    curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");
    result = curl_easy_perform(curl);
    if(CURLE_OK == result) {
      result = curl_easy_getinfo(curl, CURLINFO_NAMELOOKUP_TIME_T,
                                 &namelookup);
      if(CURLE_OK == result) {
        printf("Time: %" CURL_FORMAT_CURL_OFF_T ".%06ld", namelookup / 1000000,
               (long)(namelookup % 1000000));
      }
    }
    /* always cleanup */
    curl_easy_cleanup(curl);
  }
}

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⭐ AVAILABILITY ⭐

added in curl 7.61.0 👑

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🎀 RETURN VALUE 🎀

curl_easy_getinfo(3) returns a CURLcode indicating success or error.

CURLE_OK (0) means everything was OK, and non-zero means an error occurred — see libcurl-errors(3) for the deets 💀

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💅 SEE ALSO 💅

• CURLINFO_NAMELOOKUP_TIME(3)
• curl_easy_getinfo(3)
• curl_easy_setopt(3)

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xoxo, your libcurl bestie 💖 — source/version: libcurl, dated 2026-10-12, page: CURLINFO_N...KUP_TIME_T(3) 🦋