CURLOPT\_DOH\_SSL\_VERIFYSTATUS(3) Library Functions Manual CURLOPT\_DOH\_SSL\_VERIFYSTATUS(3)

# [NAME](#NAME)

CURLOPT\_DOH\_SSL\_VERIFYSTATUS - verify the DoH SSL certificate's status

# [SYNOPSIS](#SYNOPSIS)

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


                          long verify);
```

# [DESCRIPTION](#DESCRIPTION)

Pass a long as parameter set to 1 to enable or 0 to disable.

This option determines whether libcurl verifies the status of the DoH (DNS-over-HTTPS) server cert using the "Certificate Status Request" TLS extension (aka. OCSP stapling).

This option is the DoH equivalent of [*CURLOPT\_SSL\_VERIFYSTATUS(3)*](/man/os/curl/CURLOPT_SSL_VERIFYSTATUS.3) and only affects requests to the DoH server.

If this option is enabled and the server does not support the TLS extension, the verification fails.

# [DEFAULT](#DEFAULT)

0

# [PROTOCOLS](#PROTOCOLS)

This functionality affects all TLS based protocols: HTTPS, FTPS, IMAPS, POP3S, SMTPS etc. only

This option works only with the following TLS backends: GnuTLS and OpenSSL

# [EXAMPLE](#EXAMPLE)

```
int main(void)
{


  CURL *curl = curl_easy_init();


  if(curl) {


    CURLcode result;


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


    curl_easy_setopt(curl, CURLOPT_DOH_URL,


                     "https://cloudflare-dns.com/dns-query");


    /* Ask for OCSP stapling when verifying the DoH server */


    curl_easy_setopt(curl, CURLOPT_DOH_SSL_VERIFYSTATUS, 1L);


    result = curl_easy_perform(curl);


    curl_easy_cleanup(curl);


  }
}
```

# [AVAILABILITY](#AVAILABILITY)

Added in curl 7.76.0

# [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\_DOH\_SSL\_VERIFYHOST**(3)](/man/os/curl/CURLOPT_DOH_SSL_VERIFYHOST.3), [**CURLOPT\_DOH\_SSL\_VERIFYPEER**(3)](/man/os/curl/CURLOPT_DOH_SSL_VERIFYPEER.3), [**CURLOPT\_SSL\_VERIFYSTATUS**(3)](/man/os/curl/CURLOPT_SSL_VERIFYSTATUS.3)

2026-10-14 libcurl

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Document: CURLOPT_DOH_SSL_VERIFYSTATUS(3) from curl 8.23.0-r0 (Chainguard OS)
Source: https://github.com/curl/curl.git