CAPTCHA purpose text alternative (captcha)
CAPTCHAs include a descriptive alt attribute or accompanying explanation for its purpose.
Missing CAPTCHA alt text:
This CAPTCHA element has no text alternative:
CAPTCHAs include a descriptive alt attribute or accompanying explanation for its purpose.
Missing CAPTCHA alt text:
This CAPTCHA element has no text alternative:
Note: Possible to implement, because you just need to check if the CAPTCHA image has alt attribute.