Do Denver SEO agencies still sell ‘proven results’ with no proof?

https://erickzevf177.raidersfanteamshop.com/what-does-authoritative-colorado-based-links-mean-in-practice

After 15 years building campaigns in Colorado, I have seen hundreds of businesses burned by empty seo promises. It is a recurring cycle where a flashy pitch deck replaces actual data, leaving local firms wondering why their phones stopped ringing