Dear StackExchange users,

I currently use the premium version of WP Fastest Cache Premium. My website loads very fast, but I always get a 403 error for wp-admin/ajax.

I believe there is a plugin with a tremendously low nonce lifetime value.

Does anybody know how and where I can check the none lifetime value of my plugins.

Any help is appreciated.



Check codex info about Nonces life time here.

Here is a quick code that will echo life time of nonces in footer of your site's front-end as html comment. Put it in your functions.php file.

$n  = "";
add_filter('nonce_life', 'wptuts_change_nonce_hourly');
function wptuts_change_nonce_hourly( $nonce_life ) {
    global $n ;
    $n = $nonce_life;
    return $nonce_life;

// Display in footer comments
function d(){
    global $n;
    echo "<!- Nonce Life =". $n ."-->";

NOTE: This code does not give the ideal way to check life time of nonce, but a quick fix to get the desired info. You should delete this code from functions.php once you get the info.

  • Thank you for your help. I tried that, unfortunately I didn't see the lifetime values in my footer. I use the Hestia theme. Could this be a reason why I can't view the data? – Niklas Feb 22 '19 at 19:02
  • Since it is wrapped in an html comment tag, so it is not visible on front-end view. Right click anywhere in the page and select "View page source" and scroll down to the footer area code. You will see somethin like <!- Nonce Life =8640--> – Qaisar Feroz Feb 22 '19 at 19:08

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.