While traffic coming from SEO isn’t entirely free (it takes considerable time and effort to rank high in Google’s search returns), you won’t be charged each time someone clicks on your site in the SERPs (Search Engine Results Pages). On the other hand, PPC ads do just this – each time someone clicks your ad you will be charged! Overall, SEO is much more cost effective than PPC.
An example from the Ahrefs blog highlights the massive cost benefit of SEO over PPC. According to Ahrefs, they receive more than 240,000 visitors per month from search. This massive amount of traffic would translate into approximately $733,000 per month in PPC ads! In comparison, only 3 or 4 people on their team are employed to create content – a crazy savings with SEO!
PPC ads can also get very expensive. Some highly competitive keywords can cost you more than $50 per click – meaning that each time someone clicks on your ad you will be paying over $50!