CURLOPT\_LOW\_SPEED\_TIME(3) Library Functions Manual CURLOPT\_LOW\_SPEED\_TIME(3)

# [NAME](#NAME)

CURLOPT\_LOW\_SPEED\_TIME - low speed limit time period

# [SYNOPSIS](#SYNOPSIS)

```
#include <curl/curl.h>
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_LOW_SPEED_TIME,


                          long speedtime);
```

# [DESCRIPTION](#DESCRIPTION)

Pass a long as parameter. It contains the time in number seconds that the transfer speed should be below the [*CURLOPT\_LOW\_SPEED\_LIMIT(3)*](/man/os/curl/CURLOPT_LOW_SPEED_LIMIT.3) for the library to consider it too slow and abort.

# [DEFAULT](#DEFAULT)

0, disabled

# [PROTOCOLS](#PROTOCOLS)

This functionality affects all supported protocols

# [EXAMPLE](#EXAMPLE)

```
int main(void)
{


  CURL *curl = curl_easy_init();


  if(curl) {


    CURLcode result;


    curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");


    /* abort if slower than 30 bytes/sec during 60 seconds */


    curl_easy_setopt(curl, CURLOPT_LOW_SPEED_TIME, 60L);


    curl_easy_setopt(curl, CURLOPT_LOW_SPEED_LIMIT, 30L);


    result = curl_easy_perform(curl);


    if(result == CURLE_OPERATION_TIMEDOUT) {


      printf("Timeout.\n");


    }


    /* always cleanup */


    curl_easy_cleanup(curl);


  }
}
```

# [AVAILABILITY](#AVAILABILITY)

Added in curl 7.1

# [RETURN VALUE](#RETURN_VALUE)

[*curl\_easy\_setopt(3)*](/man/os/curl/curl_easy_setopt.3) returns a CURLcode indicating success or error.

CURLE\_OK (0) means everything was OK, non-zero means an error occurred, see [*libcurl-errors(3)*](/man/os/curl/libcurl-errors.3).

# [SEE ALSO](#SEE_ALSO)

[**CURLOPT\_LOW\_SPEED\_LIMIT**(3)](/man/os/curl/CURLOPT_LOW_SPEED_LIMIT.3), [**CURLOPT\_TIMEOUT**(3)](/man/os/curl/CURLOPT_TIMEOUT.3)

2026-10-01 libcurl

---

Document: CURLOPT_LOW_SPEED_TIME(3) from curl 8.22.0-r4 (Chainguard OS)
Source: https://github.com/curl/curl.git