Carbon AdsMedia kit

Reach developers & creators where they work

One native ad on hand-picked developer and design sites: the documentation, tools and blogs builders keep open while they work.

350+

Curated sites

250M+

Monthly impressions

Approved

Acceptable Ads, network-wide

2010

Running since, operated by BuySellAds

Updated November 202601 / 10

Audience

Mostly developers, mostly at small teams

Share of audience, by role

  • Backend Developer64.6%
  • Frontend Developer56.9%
  • Mobile Developer26.2%
  • UI/UX Designer24.6%
  • Game Developer16.9%
  • DevOps Engineer15.4%
  • Product Manager13.8%
  • QA Engineer/Tester12.3%
  • Data Scientist/Engineer9.2%

People name more than one role, so the shares add up to more than 100%.

Developer team size

  • 1–5064%
  • 51–20017%
  • 500+11%
  • 201–5007%

Readers come to learn, compare tools and get unblocked during working hours, which is when they decide what to try next.

Source: Carbon Ads media kit 2025/2602 / 10

The network

Hand-picked sites, grouped by what readers do there

148

Frontend & Frameworks

Framework docs, component libraries, CSS references.

119

Developer Tools & Infra

Online tools, DevOps and backend references, language docs.

49

Design & Creative

Icons, color, photography and design resources.

36

AI & Emerging

AI tools and the communities building with them.

Every site is reviewed before it joins, and runs only Carbon. Your ad appears beside the page the reader came for, with no reader profiles.

A site can belong to more than one group.

Active sites by category, as of March 202603 / 10

Carbon Classic

An image and a line of copy, native to the page

A Carbon Classic ad for Flagsmith in the shadcn-vue documentation sidebar
shadcn-vue.com
A Carbon Classic ad for Speechmatics in the Bootstrap documentation sidebar
getbootstrap.com

The same unit in each site’s own style, captured live on 2 November 2026.

  • An image and a description of up to 100 characters.
  • Runs across the network, in the spot each publisher sets aside for it.
  • Styled by the site, so it reads as part of the page, labelled “ads via Carbon”.
  • Only our ads on the site. No other ad network competes with it.
Full creative specs at carbonads.net/brief04 / 10

Carbon Cover

A larger unit that gives your brand more room

A horizontal Carbon Cover ad on bundlephobia.com
bundlephobia.comHorizontal
A vertical Carbon Cover ad in the CodePen documentation sidebar
CodePenVertical

Captured live on 2 November 2026.

  • Logo, image, tagline, description and call to action, on your brand color.
  • Adapts to the space: horizontal in wide columns, vertical in sidebars.
  • Runs on select sites, including every site that joins the network.
  • Send both formats and the campaign runs wherever either fits.
Full creative specs at carbonads.net/brief05 / 10

Performance

What the ad unit delivers, measured

0.8%–2.1%

Click-through

The typical range across Carbon campaigns, for Classic and Cover alike.

95%+

Viewability

Placed where readers look, beside the content they came for.

23%

Brand lift

Avg. increase in aided awareness.

Developers often see an ad, look you up later and sign up weeks after. Judge a campaign on sign-ups, branded search and “where did you hear about us?”, not on clicks alone.

Source: Carbon Ads media kit 2025/2606 / 10

Pricing

Pricing, planned with you

CPMquoted per campaign

Pay per thousand ad views (CPM). We quote each campaign based on timing, targeting and volume. A native pay-per-click option is also available.

Planned for volumeMeaningful campaigns need volume: we plan around 1M+ impressions a month, run for about three months. Our client services team plans the rest with you, including a CPM that fits your goal.
Optimized ROWCampaigns run on Optimized ROW, “run of world” with our standard anti-targeting: we remove 20+ countries with non-English primary languages at no additional cost.
Paid up frontPrepayment required to secure inventory.
Every campaign is planned and quoted with our team.07 / 10

How a campaign runs

Live in two to three days, tuned for months

Month 1 + 2

01

Test the message

  • A/B test creative
  • Goal: ID strongest messaging and creatives

Month 3 + 4

02

Optimize

  • Create dedicated landing pages per audience for messaging and the correct offer
  • Install attribution tracking
  • Goal: optimize based on shared performance data

Month 5+

03

Scale

  • Scale campaign
  • Ongoing performance optimization
  • Daily performance data: impressions, clicks, CTR by creative
  • Creative-level reporting for optimization insights
  • Mid-campaign optimization meetings with our client services team, available on some campaigns
  • Click and View-through tags can be utilized across Carbon
Targeting: Page context and site category, plus country, operating system and browser.08 / 10

Results

What advertisers got back, in their numbers

90%

Lower cost per registration

As a long-time buyer, MongoDB recently started running on the Carbon ad network. After 1 month of testing, BSA optimized performance and decreased cost per registration by 90% over a 3-month campaign.

91%

Lower cost per acquisition

A leading identity management solution.

Top

Referring domains

Andela observed the first increase in organic traffic since August 2024, directly correlated with the duration of their BSA campaign. Carbon placements have been their top referring domains.

“Reaching developers as a marketer can be hard. I come back to Carbon Ads because I know I’ll reach developers in their native digital communities, and that reach will help create more authentic connections to our target audience.”

Shane RiceDirector of Demand Generation, SmartBear
Sources: Carbon Ads media kit 2025/26 and a BuySellAds case study09 / 10

Next step

Plan a campaign with our team

Tell us your budget and goals. We’ll say what it can show and when it can go live.

Contactcarbonads.net/contact
Creative specscarbonads.net/brief
Operated byBuySellAds, since 2010