View file phpBB3/adm/style/captcha_recaptcha.html

<!-- IF S_RECAPTCHA_AVAILABLE -->
	<dl>
	<dd>
	<noscript>
		<div>{L_RECAPTCHA_NOSCRIPT}</div>
	</noscript>

		{L_RECAPTCHA_INVISIBLE}
		<script src="{RECAPTCHA_SERVER}.js?hl={LA_RECAPTCHA_LANG}" async defer></script>
		<div class="g-recaptcha" data-sitekey="{RECAPTCHA_PUBKEY}" data-size="invisible"></div>
	</dd>
	</dl>
<!-- ELSE -->
{L_RECAPTCHA_NOT_AVAILABLE}
<!-- ENDIF -->