change detection.io - SERP Analysis

https://changedetection.io/

https://github.com/dgtlmoon/changedetection.io

https://www.reddit.com/r/selfhosted/comments/1bymw7k/changedetectionio_for_super_easy_website_watching/

https://www.youtube.com/watch?v=p2XuD_pr_6w

https://visualping.io/

https://docs.nmaas.eu/nmaas-applications/tutorials/changedetectionio/

https://discussion.scottibyte.com/t/change-detection-for-websites/526

https://github.com/dgtlmoon/changedetection.io/discussions/2044

https://chromewebstore.google.com/detail/changedetectionio-website/kefcfmgmlhmankjmnbijimhofdjekbop

https://xtom.com/blog/changedetection-io-website-change-monitoring/