Topic summary
ReCAPTCHA v1

Extracted from the Wikipedia article ReCAPTCHA.
reCAPTCHA v1 (human-assisted OCR)
reCAPTCHA v1 was declared end-of-life and shut down on March 31, 2018.
Topic summary

Extracted from the Wikipedia article ReCAPTCHA.
reCAPTCHA v1 was declared end-of-life and shut down on March 31, 2018.