see the initial point https://github.com/loadkpi/crawler_detect/issues/61 I probably agree with it because Amazon CloudFront is more like a reverse proxy than crawler But I also found that it's not strict opinion: - it was added on Aug 2020 https://github.com/JayBizzle/Crawler-Detect/pull/392 - after that it was remove on Sep 2020 https://github.com/JayBizzle/Crawler-Detect/pull/410 - and then again was added on Aug 2023 https://github.com/JayBizzle/Crawler-Detect/pull/504