How does programmatic advertising work?

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Real -time bidding (RTB) or “open market” is a bidding format available to all advertisers where instant auctions of ads are held in real time.
Private marketplace (PMP) is a variation of the previous type, but it is a closed platform with higher bid prices. Only selected brands are present here, who receive information about available positions in advance. Agreements are concluded only with a limited number of advertisers.
Programmatic direct is a format where an advertiser bangladesh telegram data and publisher enter into a direct agreement without involving intermediaries. Advertisers directly approach publishers to purchase advertising space. This allows the parties to agree on a fixed price per thousand impressions, avoiding auction processes.
Advertising media is bought and sold in real time through bids set by software instead of manual negotiations. Advertisers pay for impressions based on the number of users who see their ads, instead of the traditional CPM cost for the entire site.

To explain: when a user visits a page that contains an ad, an auction takes place through a supply chain platform (SSP). The demand-side platform (DSP) bids for the impressions based on audience targeting criteria. The highest bidder gets the ad. The ad is displayed on the site the user visits. This process is automatic and takes less than 100 milliseconds.