How this price estimate is built
Enter a site's approximate domain authority/rating and monthly organic traffic, pick its niche and the type of link being placed, and this tool estimates a fair price range using common patterns observed in the real guest-posting and link-placement market: price grows steeply with authority, traffic adds a smaller but steady premium on top, competitive niches like finance and legal command a markup over general content, and a full dofollow guest post is worth meaningfully more than a nofollow sponsored mention.
Why authority drives price so steeply
The calculation deliberately weighs domain authority with an exponential curve rather than a flat multiplier, because that's how real-world link pricing actually behaves - a jump from a DA 20 to a DA 40 site commands a far larger price increase than the same 20-point jump from DA 60 to DA 80, since high-authority sites are both rarer and in much higher demand from buyers.
Why niche and link type both apply as multipliers on top
Niche and link type are applied as separate multipliers after the base price is calculated from authority and traffic, which mirrors how these factors actually work in practice - a finance site's links command a premium across the board regardless of its specific authority level, and a nofollow sponsored placement is discounted relative to a dofollow guest post at every authority level, not just at the high or low end.
Using this as a negotiation anchor, not a fixed quote
Treat the output range as a reasonable starting point for a conversation, not a locked-in market price - actual rates vary by the specific relationship between buyer and seller, how much content creation work is required, current demand in that specific niche, and plenty of factors this formula can't see, like a site's actual engagement or whether it's known to accept paid links at all.