How much does a science backlink cost?

What is the full range for science backlink?

Ten percent ask under $46 and ten percent over $673. Suspect domains, excluded above, ask a median of $216; the cheap tail is not a bargain.

How much does a science backlink cost at each DR?

By the seller’s claimed DR decade, root domains only; rows under 100 publishers are not shown.

Which kind of placement, at what price?

What changes the price of science backlinks?

• Whether the authority is real. Domains our tests flag as suspect ask a median of $216 here, against $175 on the rest. The cheap end of any band is where bought authority lives; see the five tests.
• Which seller you buy through. The same placement on the same domain is often sold by several marketplaces at different prices; the median gap is on the market report. These figures use the cheapest.
• Saturation. Publishers that link out to far more domains than link in charge more, not less, in almost every topic; see finding 07.
• Turnaround. The median promised turnaround for science backlinks is 5 days; faster sellers of the same domain usually ask more.
• Who writes the article. Guest-post prices usually include the publisher writing; supplying your own copy rarely lowers the price, and some publishers charge to review it.

How do I buy science backlinks at these prices?

These are the prices the API quotes. The same brief returns held offers, named domains each with its verification, survival record and score, for four hours:

POST https://api.placementapi.com/v1/quote
Authorization: Bearer pk_live_…

{
  "links": 3,
  "strategy": "safest",
  "verified_only": true,
  "topic": "science",
  "budget_credits": 52590
}

Or say it to an agent with the MCP server connected: “Plan 3 science backlinks on science sites, under $526 total, verified only.”