SiteGround bot prevention CAPTCHA.
https://www.siteground.com/kb/what_is_captcha/
Content Delivery Network
Get access to data on 2,436,656 websites that are SiteGround CAPTCHA Customers. We know of 1,886,992 live websites using SiteGround CAPTCHA and an additional 549,664 sites that used SiteGround CAPTCHA historically and 1,083,258 websites in the United States.
Get a list of 2,436,656 websites using SiteGround CAPTCHA which includes location information, hosting data, contact details, 1,886,992 currently live websites and an additional 502,050 domains that redirect to sites in this list. 549,664 sites that used this technology previouslyand 1,083,258 websites in the United States currently using SiteGround CAPTCHA.
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