Reddit Ads

Subreddit Targeting

The distinguishing capability is targeting specific subreddits. Rather than approximating an audience through interest signals, you place your ad in a community explicitly organised around a topic.

This is unusually precise for niche B2B, hobbies, technical products and special interests. A subreddit dedicated to a specific profession or product category is a cleaner audience definition than any interest cluster.

Reddit also offers interest categories, keyword targeting against post content, location, device and custom audiences.

Ad Formats

Promoted Posts — text, image, video or link posts appearing in the feed and carrying a comment section like any post.

Conversation Ads — placement within comment threads.

Takeover formats — category, front-page and trending takeovers for large reach buys.

The comment section is the defining feature. Reddit users comment on ads, and those comments are public and permanent.

Tone and the Comment Problem

Reddit audiences identify and reject marketing language quickly. Ads written in standard advertising register reliably attract mocking comments that sit under the ad for its entire run.

What works: plain language, honesty about what the product does and does not do, engaging genuinely in the comments, and a tone that matches the subreddit.

Monitor comments actively and respond. A brand that answers questions candidly under its own ad frequently converts the thread from hostile to positive, and that thread becomes an asset.

The option to disable comments exists. Using it is usually read as evasive.

Where Reddit Works

Niche B2B and technical products where the buyer researches on Reddit anyway. Hobby and enthusiast categories with dedicated communities. Gaming, technology and developer tools. Recruitment for specialised roles.

It works poorly for broad consumer categories with no community anchor, and for any brand unwilling to engage in public conversation.

Measurement

Install the Reddit Pixel and use Conversions API where possible. Expect attribution to understate — Reddit drives research that converts later through search.

Watch branded search lift and organic mentions of your product on the platform alongside direct conversions. Reddit content also ranks well in Google, so the effect extends beyond the campaign.

Deciding What to Do About Comments

Reddit ads carry a comment section, which no other major platform's ad units do in the same way, and it is the single decision that most affects outcomes.

Comments on is the higher-variance option. A promoted post that people engage with gains credibility no creative can buy; one they turn on becomes a public pile-on attached to your brand name and visible to everyone the ad reaches.

Comments off is safer and is read as defensive by an audience unusually attuned to that. It also forfeits the one thing the platform offers that others do not.

The workable middle: comments on, with a human monitoring for the first hours, a prepared first comment from the brand account that is honest about what the ad is, and a genuine willingness to answer. A brand that shows up in its own comments and answers the hard question does better than one that runs a polished ad and hides.

If you cannot staff that, turn comments off and accept the lower ceiling — which is a legitimate decision, unlike leaving them on and unattended.

Targeting That Works, and the Trap in It

Subreddit targeting is the platform's real asset: you are reaching people by what they have chosen to read about, which is closer to intent than most interest targeting.

What works: a curated list of specific subreddits you have actually read, rather than the broad interest categories, which behave like ordinary display. Build the list by looking at where your customers already discuss the problem, not by keyword.

The trap is scale. A precise list of relevant communities is often too small to spend against, and the platform will helpfully expand delivery beyond it. Check whether expansion is enabled, because a campaign that started as precise subreddit targeting can quietly become broad reach with the same reporting label.

And match the creative to the community. A single ad across twelve subreddits reads as an ad in all twelve. The platform's audience punishes generic more than most.

Measure on assisted and view-through separately from last click — this is a consideration channel, and judging it purely on last-click conversions will under-report it in the same way display is under-reported.

Sources

What each claim on this page rests on. Entries are typed so you can see which are primary.