What Authority Builders is
Authority Builders, often shortened to ACB, is an English-language guest posting service. Its team says it has been building relationships with webmasters across niches since 2016, and the whole model rests on that: the platform owns none of the sites it sells placements on.
That single fact explains almost everything else about the service, including its main limitation. Because the inventory belongs to independent webmasters, Authority Builders states plainly that it cannot guarantee a turnaround time. Very few providers admit that. It is a mark of honesty and a constraint you have to plan around.
Borrowed inventory, and what it changes
Buying from a network that owns its sites, as Linkuma does, gets you speed, a fixed price and a shared footprint. Buying from a broker with no owned inventory gets you the opposite: sites that exist for their own reasons, unpredictable lead times, and prices that move with each site.
The team writes niche-relevant articles designed to read as though the webmaster chose to link to you. That is the standard of the trade, and it is the right target. Judge the result on the site, not on the pitch: check whether it has organic traffic, whether the topic genuinely matches yours, and how many other paid links it already carries.
The offers and the pricing
- Guest post links, from $160: price varies with the site's domain authority, its organic traffic and its niche.
- Higher brackets: DR 50, DR 60 and DR 70 placements are available, priced individually.
Pricing is per placement, with no subscription. Because sites are not owned, the price of a given placement reflects what the webmaster charges plus the service margin, which is why two links at the same DR can cost very different amounts.
How it works
You apply for an account, browse available sites, and order. The team handles the pitch, the writing and the publication. Turnaround depends on each webmaster, and the platform does not commit to a window.
One restriction is stated openly: because the sites are real English-language properties, linking to a page in another language is awkward. If your target market is French, Spanish or Italian, this is not the right supplier and Rocketlinks or Prensalink will serve you better.
Guarantees, limits and what to watch
No guaranteed turnaround, an English-only inventory, and no API. There is an affiliate programme, which matters if you resell.
The absence of a delivery window is the point to plan around rather than to hold against them. Order earlier than you think you need to, and do not build a client timeline on an assumed publication date.
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