You know your site needs better links, but you don't always want to sign up for a monthly retainer and hope something useful comes out the other side.
Sometimes you just need a handful of solid placements on relevant sites, and you want to see exactly what you ordered and where it went live.
That's where pay-per-link services come in. In this roundup, we walk you through three of them, SayNine, Authority Builders, and Outreach Monks, so you can see which one suits the way your team buys links.
Best for SaaS and digital service teams that want Google rankings and AI visibility to grow together: SayNine, with productized packages built on up to three strategies.
Best for buyers who want to set the metrics, browse real sites, or add news-style editorial links: Authority Builders.
Best for agencies and lean teams that want single links, domain approval, and white-label reporting: Outreach Monks.
Pay-per-link means you buy individual placements one at a time instead of paying for an open-ended retainer. Each order usually takes one of a few forms:
A guest post
A link insertion (niche edit)
A listicle or comparison piece
A brand mention
So the real question isn't whether a vendor sells links, since all three here do. It's how they pick sites, who writes the content, and what you get to approve along the way.
Moreover, it matters how you see a link go live and what happens if it disappears later.
| Angle | SayNine | Authority Builders | Outreach Monks |
| How You Buy | Starter, Growth, Premium, and Custom packages on a pay-per-link model | Guest posts by placement, insertions by quantity, single high-authority links, or managed ABC Plus | Per link or as a managed campaign, with a white-label option for agencies |
| Link Formats | Link insertions, listicles and comparisons, and brand mentions (up to three strategies) | Guest posts, insertions into aged articles, and news-style editorial links | Guest posts, niche edits, and brand mentions aimed at AI search |
| Quality And Longevity | Permanent do-follow editorial links, one per domain, no PBNs, 12-month replacement | Manual outreach, do-follow, no hacked links, one-year replacement path | Manual outreach, in-body do-follow, no PBNs, 6-month replacement (12 months on brand mentions) |

SayNine is a link-building agency, founded in 2021 and headquartered in Delaware. It builds backlinks for SaaS and digital service companies that want to show up more often in both Google and AI search tools.
Getting started is straightforward:
Pick Starter, Growth, Premium, or Custom
Share the pages you want to rank and the anchors you prefer, or let the SayNine team plan both
Get a client-platform login right away and follow every live link there
Receive an SEO report after each batch
Starter suits mid-size companies, Growth is SayNine's most chosen tier for mid-size and larger teams, and Premium is built for enterprises. That's why SayNine's packages include up to three strategies, so your Google rankings and AI visibility grow together:
Link insertions inside existing articles
New listicles and comparison articles whose titles and drafts you approve first
Brand mentions that name your company and link to your homepage or product page
Links are delivered throughout the month. You can work with SayNine monthly without a contract, or choose a yearly agreement that can be cancelled with two months' notice.
Relevance beyond the numbers: every placement is checked for contextual fit, not just domain rating and traffic, and every link comes from a site with DR50+ and 1,000+ monthly organic traffic.
Clean link standards: links are permanent, do-follow, and editorial, with one unique link per domain, natural anchors, and no link farms, PBNs, or general news and magazine sites.
A safety net: if a link is removed within 12 months, SayNine replaces it.
People you can reach: every client gets a dedicated client success manager and monthly SEO reports, while Growth and Premium add a consultation with SayNine's CEO, AI visibility tracking, and competitor backlink gap analysis.
Easy to reach: all packages include communication through Gmail, LinkedIn, Slack, WhatsApp, and Telegram, so clients can reach the team wherever they already work.
SayNine works best for mid-size and enterprise SaaS or digital service companies that already have a website, a basic SEO foundation, and content or landing pages ready to grow.
It's also worth knowing that SayNine doesn't send domain lists for approval before placement.

Authority Builders has worked directly with editors and site owners since 2016.
It sells natural editorial placements on real sites, found through direct outreach and manual review, aiming to support rankings, traffic, and brand credibility in both traditional and AI-driven search.
You can buy in three ways: hand the campaign over, browse real websites yourself, or set the metrics and let the team pick the sites.
For guest posts:
Choose metrics such as organic traffic and domain authority, plus a quantity
Send your URL and desired anchor
After the webmaster confirms the topic, the team writes a niche-relevant article with your link and sends the live URL
Most guest posts are completed within 7 to 10 days once the order is confirmed
For other placements:
Link insertions go into already-published articles through fully manual outreach, typically in about 4 to 6 weeks
Silver and Gold editorial links are sold one at a time on real US news and publisher-style sites
ABC Plus is the managed route, with competitor link analysis, an anchor-text roadmap, hand-selected links, and month-to-month reporting
Therefore, you can stay hands-on with inventory or hand the whole mix to the team.
Permanence you can lean on
No shortcuts on placements
Tracking built for agencies
Editorial weight on demand
Authority Builders suits agencies and SEO teams that already know how many placements a campaign needs and want to pick guest posts or insertions by the numbers, with the option to browse inventory.

Outreach Monks is a white-hat link-building agency that has operated since 2017.
You can order from it one link at a time or as a managed campaign, and it stays away from PBNs. Moreover, its full catalog can run under white label, so agencies can deliver the work to their own clients without the Outreach Monks name on it.
For a niche edit:
Share a brief with your URL, anchor, DR tier, and niche
The team vets pages with Ahrefs checks, reaches out manually, and checks the placement
Your do-follow link sits in the body of an existing article, not a footer or author box
The live URL lands in a shared Google Sheet in about two weeks
For a guest post:
The team writes a 750-word article in-house
You approve every domain before anyone pitches it
Content goes through two editorial rounds
Standard delivery runs about 2 to 3 weeks
Brand mentions have their own path. A publisher names your brand, works in what makes you different, and includes a do-follow branded link, usually within 10 to 25 days. These mentions are meant to help AI tools such as ChatGPT, Gemini, Perplexity, and Google AI Overviews pick up your brand, although no one can promise those appearances.
And finally, there's no retainer or lock-in on the core per-link services, so you can stop whenever you need to.
Approval where it matters
Reporting you can share
Agency-ready setup
Clear replacement windows
Outreach Monks is a strong match for agencies that need white-label per-link fulfillment and for in-house teams that want à-la-carte niche edits or guest posts with domain approval.
All three services sell links one at a time, so the real difference is how hands-on you want to be and what kind of visibility you're chasing.
SayNine suits SaaS and digital service teams that want a guided package where Google rankings and AI visibility grow together.
Authority Builders suits buyers who prefer to set the metrics themselves, browse real sites, or add news-style editorial links.
Outreach Monks suits agencies and lean teams that need single placements, domain approval on guest posts, and white-label reporting.
And finally, start with the buying style that matches your week-to-week workflow, then test a small batch before you scale.