Programmatic Advertising: How RTB, DSPs and SSPs Work

Programmatic advertising is the automated buying and selling of ad space: software decides for every single impression whether an ad is shown, to whom and at what price. This guide is for dating advertisers, media buyers and publishers who want to understand how the programmatic market works and whether it fits their campaigns. It covers how real-time bidding runs, what DSPs, SSPs and ad exchanges do, the deal types, what programmatic costs and where its limits are in dating.

What is programmatic advertising?

In traditional media buying, people negotiate placements, flight dates and prices and sign an insertion order. In programmatic media buying, platforms handle that trade automatically, impression by impression: the buyer sets audience, environment, budget and bid, and the software evaluates every available impression and bids only where it matches those rules.

Two misconceptions are common:

• Programmatic is not only auctions. Besides the open real-time auction, there are automated fixed-price deals with guaranteed volume.
• Programmatic is not a format. Display, native, video, in-app, audio and connected TV can all be bought programmatically. What defines it is how you buy, not what you show.

Many push, pop and native networks also auction impressions in real time, but usually within their own inventory and through their own self-serve dashboard. The open programmatic market instead connects many buyers with many sellers through standardized interfaces.

How real-time bidding works

Real-time bidding (RTB) is the best-known form of programmatic. Simplified, it runs like this:

1. Page load: a user opens a website or app with an open ad slot.
2. Bid request: the publisher's supply-side platform sends a bid request, usually in the IAB Tech Lab's OpenRTB standard. It describes the ad slot, format, site or app, device, operating system, approximate location and, where consent exists, user identifiers.
3. Distribution: the ad exchange passes the request to connected demand-side platforms.
4. Evaluation and bid: each DSP checks whether any client campaign fits, including targeting, budget, frequency caps and blocklists, and bids if it does.
5. Auction: the highest bid wins. Most major exchanges now run first-price auctions, so the winner pays its own bid, subject to the publisher's floor prices.
6. Delivery: the ad is served, and impression and tracking pixels fire.

All of this happens in a fraction of a second while the page loads. Many publishers use header bidding to query several SSPs at once, so more buyers compete for every impression.

The players: DSPs, SSPs, ad exchanges and data platforms

The lines blur: many SSPs run their own exchange, and some vendors serve both sides. Among the best-known programmatic advertising platforms on the buy side are The Trade Desk, Google's Display & Video 360 and Amazon DSP, alongside specialized DSPs for in-app advertising and other niches.

For buyers, the key point is this: the DSP is your tool and the SSP is the publisher's. Bidding through a DSP only reaches the inventory of the SSPs and exchanges that DSP is connected to.

Deal types: open auction, PMP and programmatic guaranteed

The open auction offers the widest reach and the lowest entry prices, along with the widest range of quality. PMPs and preferred deals open selected inventory such as specific sites or placements. Programmatic guaranteed is a classic reserved buy, executed through the DSP.

Costs and transparency: CPM, fees and the supply chain

Programmatic is almost always billed per 1,000 impressions. Some DSPs offer bidding strategies that optimize for clicks or conversions, but you usually still pay for impressions. Our CPM formula guide shows how to turn CPM into cost per click and cost per lead.

Between your budget and the publisher sits a chain of vendors that each take a share: DSP fees, SSP fees, data costs and verification. A 2020 study by the UK advertisers' association ISBA and PwC found that on average only about half of advertiser spend reached publishers, and around 15% could not be attributed to any part of the chain. For buyers, that means asking for every fee, not just the media CPM.

Three IAB Tech Lab standards add transparency:

• ads.txt and app-ads.txt: publishers list who is authorized to sell their inventory, which makes domain spoofing (misrepresenting the site) harder.
• sellers.json: SSPs and exchanges disclose who is behind their seller IDs.
• SupplyChain object: the bid request lists every intermediary involved in an impression.

Large buyers use this data for supply path optimization: buying the same inventory through the shortest, most direct routes.

Programmatic advertising for dating: opportunities and limits

Opportunities. Programmatic opens up reach on sites and apps that no push, pop or native network aggregates. Mainstream dating brands use it for brand campaigns with display and video, for contextual targeting in suitable environments and, with consent, for retargeting users who registered but have not paid yet.

Limits. Many platforms treat dating as a sensitive category. Publishers can block ad categories such as dating, and SSPs and DSPs review creatives and sometimes require approval. Adult dating is largely excluded from mainstream programmatic and runs through specialized networks; see our guide to buying adult traffic.

Performance. Open inventory varies widely in quality. Analyze results per domain or app, work with whitelists and measure approved conversions rather than clicks. Bots, fake apps and domain spoofing are the most common fraud patterns; our guide to click fraud in dating traffic shows how to spot them.

Consent. In the EU, personalized ads based on cookies or device identifiers generally require consent. IAB Europe's Transparency & Consent Framework (TCF) passes consent signals in the bid request; without consent, contextual targeting remains. More in our guide to GDPR lead generation. This is general information, not legal advice.

Programmatic, self-serve networks or partner traffic?

For performance campaigns in casual dating, self-serve networks are often the faster start; our overview of dating traffic sources compares them. Programmatic plays to its strengths when reach, brand environment and data integration matter more than the lowest price per click.

Setting up a programmatic campaign for dating in seven steps

1. Define the economics: set a target CPA or target ROAS and derive your maximum CPM from it.
2. Choose a DSP: inventory access, dating policies, minimum spend, reporting per domain and app, and support for conversion pixels or S2S postbacks.
3. Narrow the inventory: GEO, device, formats and environments; start with vetted lists or PMPs rather than the whole open auction.
4. Test tracking: click ID macros, postback and one test conversion through the full chain.
5. Prepare creatives: every required size, honest claims, aimed at adults only (18+).
6. Launch the test: fixed budget, frequency cap and stop rules per domain or app.
7. Optimize and scale: block weak domains and apps, whitelist winners and request PMPs or preferred deals for them.

FAQ

What is programmatic advertising in simple terms?

Programmatic advertising means buying ad space automatically with software. For every single impression, a platform uses rules and data to decide whether to show an ad and at what price, usually in a real-time auction.

What is the difference between a DSP and an SSP?

A demand-side platform (DSP) works for advertisers and bids automatically on impressions that fit their campaigns. A supply-side platform (SSP) works for publishers, offering their ad slots and trying to get the highest price.

Is programmatic advertising the same as real-time bidding?

No. Real-time bidding is the per-impression auction and the best-known form of programmatic. Programmatic also includes fixed-price deals such as preferred deals and programmatic guaranteed.

Conclusion

Programmatic advertising automates media buying down to the single impression: DSPs bid, SSPs sell and exchanges run the auction. For dating advertisers it pays off where reach, brand environment and clean data matter; for pure performance it needs strict inventory control and measurement on approved conversions. If you would rather buy dating traffic through direct partnerships than through long supply chains, talk to Leadpartner.