The previous article mentioned the similarities between SEO and SEM, but this time I will compare the differences between the two. 4. SEM can set target customer groups such as specific regions and age groups for different products and services; while SEO cannot target specific target customer groups. 5. SEM can make A/B Testing more conveniently and quickly, and test various advertising settings and advertising copy, so as to get a better advertising setting method; SEM is difficult to use for testing because it takes a long time to operate. 6. SEM can have an immediate effect; SEO is a cumulative effect. 7. If you can successfully improve your search ranking in SERP with SEO, SEO's CTR (Click-through rate) will be higher than SEM.
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