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Carbon Ads alternative for developer sites

Nishant · Updated 10 Oct 2026 · 3 min read

Short answer

Carbon Ads finds advertisers for invited developer and design sites, paying per 1,000 impressions. It is exclusive: only Carbon ads on that site. Selling a monthly sponsor spot gives you control over price and brand, but you must find the buyer and unbooked months earn nothing. Test on another site, or after leaving Carbon.

On this page
Pick Carbon Ads if

you have high developer or design traffic and want ads that fill themselves every month.

Pick Carbon Ads if

you want one small, cookieless, standard ad and no contact with advertisers.

Pick Sponsor.st if

Carbon hasn't invited you, or your audience is small but valuable to brands in its niche.

Pick Sponsor.st if

you want to set your own price and choose each sponsor.

Your sponsor spots $80asked / month Median asked by 5 similar sites, for all their spots
Carbon Ads $60–115

At 50,000 pageviews a month: Your sponsor spots $80 asked, Carbon Ads $60–115.

Networks pay every month they fill. A spot pays for the months someone books.

Estimates from each network’s published rates and sites’ own advertise pages. More on prices

Carbon's range is its typical CPM, not a guaranteed rate. The sponsor figure is what similar sites ask for all their spots; compare it with paid bookings, not just a published price.

How Carbon Ads works

Carbon is run by BuySellAds. From its FAQ:

  • Invitation only. Carbon reviews ad relevance to your audience, monthly pageviews, whether the site is actively maintained, whether there is room in the network, and whether you can follow its placement and exclusivity rules. No public traffic minimum is given.
  • Exclusive. You agree to show only Carbon ads and not to use Carbon as backfill behind another network.
  • Earnings. Carbon quotes a typical rate of $1.20 to $2.30 CPM, with no rate guaranteed. It does not publish its revenue split.
  • Payouts. Since 1 September 2026, earnings are visible within 30 days and withdrawable within 60. Minimums depend on method: PayPal $20 (fees apply), check $50, wire $500 with a $35 fee. Open Collective payouts are quarterly on request.
  • Who picks the ads. Carbon serves ads from its advertiser demand, matched to your content. You don't sell or price individual ads.

How Sponsor.st works

Paste one script tag, click where a spot goes and set a monthly price. Sponsors book calendar months and pay into your own Stripe or Dodo account; the ad goes live and comes down on its dates.

Side by side

Carbon Ads Sponsor.st
Who can join Invitation only, reviewed Anyone with a website
Exclusivity Carbon ads only None
How you earn Per 1,000 impressions (typically $1.20–$2.30 CPM, not guaranteed) A monthly price you set per spot
Who finds advertisers Carbon You
Revenue split Not published Paid to your own Stripe or Dodo account, minus that provider's processing fee
Payout timing Visible within 30 days; withdrawable within 60 When the sponsor pays
Who picks the ads Carbon's advertisers You; approving each ad first is optional
Format One small image-and-text ad Banner, card, text line, logo
Empty months Rare: the network fills the spot Possible if nobody books
Tracking Cookieless No cookies
Setup Approval, then their embed code One script tag, then click where the spot goes

What you trade

With Carbon you

let the network find advertisers for one small cookieless ad; earnings depend on traffic and demand.

With Carbon you

need an invitation, show only Carbon ads, and earn in step with pageviews.

With Sponsor.st you

can start on any site today and price for who reads you, not just how many.

With Sponsor.st you

find and keep the sponsors yourself; a month nobody books stays empty.

Finding a sponsor

A network brings the advertiser. Here you do:

  • Your booking page. Each spot gets its own page with its price and open months. Link it as “Advertise” in your footer or newsletter, and send it to brands that ask.
  • A media kit. Make a one-page PDF with your audience and spots, for the brands you email.
  • Who to ask. How to sell sponsorships covers finding brands that already sponsor sites like yours.
  • The directory. Brands browse the Sponsor.st directory for sites to sponsor.

Common mistakes

  • Comparing CPM to a monthly price without doing the maths. Multiply monthly views by the CPM and divide by 1,000 first.
  • Adding other ads to a Carbon site. Its exclusivity rule forbids it.
  • Forgetting payout thresholds. A wire needs $500 and costs $35; PayPal starts at $20.
  • Expecting a sponsor spot to fill itself. Without a visible "Advertise" link, nobody books.

Keep Carbon while you try

Not on the same site: Carbon's FAQ says publishers show only Carbon ads. Try a sponsor spot on another site you run, or on this one after you leave Carbon.

  1. Paste one script tagIn your site’s head, once.
  2. Click where a spot goesOn your own page, where readers look.
  3. Set a monthly priceSponsors book months and pay your Stripe or Dodo account.

Start free Free for 1 site and 3 spots · no card

Sources (checked 10 October 2026)

Comparison EthicalAds alternative for developer sites EthicalAds pays developer sites 70% of privacy-first, contextual ad revenue. Sponsor.st lets you sell your own monthly spots, paid to you directly. Comparison BuySellAds alternative for site owners BuySellAds sells ads for large tech sites through a sales team and an invite-only network. Sponsor.st helps any owner sell their own monthly spots. Guide AdSense alternatives: ad networks vs sponsors AdSense alternatives compared with sources: Ezoic, Mediavine, Raptive, Carbon Ads, EthicalAds, BuySellAds and direct sponsors, with entry rules and pay.

Your first sponsor spot is one line away.

On another site, or after leaving Carbon, Sponsor.st handles the booking, payment and dates for a monthly spot you sell yourself. Free for 1 site and 3 spots. Pro is $19/month.

Start free
Sponsor spot · Banner

Sponsor this spot · $370/month

What an empty spot shows.