I’ll introduce a case study of the frequency of CAPTCHA appearances when actually checking search rankings with the search ranking checker tool Serposcope.

It's Possible to Keep CAPTCHA Frequency Under 10 Times

After tuning various settings in NETWORKING OPTIONS several times, I was able to converge to between 0-10 times for about 6000 keywords.

Since CAPTCHA breaking services cost $0.7 to break 1000 CAPTCHA images, there was almost no cost involved.

Future Serposcope Tuning Challenges

With the configuration of:

• Pause: Min 60, Max 120
• Maximum threads: 5
• Proxies: 9

It takes about 11-13 hours to complete tasks, so the challenge is to finish faster.

In the future, I’m considering tuning such as shortening pause intervals to reduce proxy server operating time, or increasing the number of proxy servers and raising the maximum threads limit.

That’s all from the Gemba.